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US3372663A - Boat stabilizing units - Google Patents

Boat stabilizing units Download PDF

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US3372663A
US3372663A US584416A US58441666A US3372663A US 3372663 A US3372663 A US 3372663A US 584416 A US584416 A US 584416A US 58441666 A US58441666 A US 58441666A US 3372663 A US3372663 A US 3372663A
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tab
stabilizing
craft
stabilizing tab
mounting means
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US584416A
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Bue Louis Lo
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Aqua Stables Inc
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Aqua Stables Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B39/061—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water by using trimflaps, i.e. flaps mounted on the rear of a boat, e.g. speed boat

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  • the present invention relates to boat stabilizing units and more particularly to trim tab attachments for the transom tor hull of a power driven boat.
  • the forward motion of a power boat generally results in the lifting of the forward section or the bow out of the water.
  • the same lifting effect may be similarly caused by turbulent water.
  • This lifting of the bow results in drag due to Water resistance, a choppy ride and additionally may block the vision of the boat operator due to the angle of elevation of the how.
  • the lifting in many instances causes substantial loss in efficiency of the power motor, not only due to the extra drag caused by water resistance, but due to the fact the uneveness or chopping effect of the craft in the water many times is so severe that it can raise the propellor out of the water for short intervals.
  • Simpler devices were developed such as through the user of compression springs which were aflixed to the plates and depending upon the adjustment of, and the compressional strength of the springs, reset the angle of the plates for differing speeds.
  • these devices were dependent upon mechanical aids for actuation, and were generally pre set, at least in normal position so that the plates were angu'lated at a relatively high pitch for low speeds and light loads. It was also difficult to readily adapt such devices which were normally used in pairs to compensate for any natural roll or list which a craft might have due to its construction or the lack of balance of the load in the craft.
  • the trim tab of the present invention is a self'actuating, self-adjusting device mounted so as to be slightly below the water level, affixed to the transom of the craft, with the tab pivotally mounted at a point outward of the transom, along its length so as to pivot from a horizontal plane to a pitched angle by the action of the water itself, the pitch being a direct function of the speed of the craft, thereby eliminating the requirement of mechanical adjustment by either the operator or through other means.
  • FIG. 1 is a perspective view of the trim tabs of the present invention aflixed to the transom of a craft.
  • FIG. 2 is a plan view of a craft employing the trim tabs showing the craft during the initial period of forward motion.
  • FIG. 3 is a plan view of the craft of FIG. 2 with the trim tabs actuated.
  • FIG. 4- is a section of FIG. 1 along lines 4-4, showing the device in operative position.
  • FIG. 5 is a partial section of FIG. 4 along lines 55.
  • FIG. 6 is an another embodiment of FIG. 5.
  • FIG. 7 is a perspective view of another embodiment of the present invention.
  • the trim tab 1 of the present invention is generally employed in pairs affixed to the transom 2 or stern of a craft 3.
  • the trim tab 1 comprises a stabilizing tab 4 of a substantially fiat rectangular configuration having upwardly flanged sides 5 and as shown in FIG. 4, an upward rear flange 6.
  • a spine 26 may be formed along one edge of the stabilizing tab 4 for rigidity.
  • a series of registered openings 7 are provided along the flanged sides 5 and provide varied pivot points for the stabilizing tab 4.
  • stabilizing tab 4 is pivotally mounted at a point outward of the transom 2 within tab housing 8, through side plates 9, the housing 8 having a substantially hollow bottom, with substantially L- shaped side plates 9, back plate 10, and sloping roof 11.
  • side plates 12 of the same general configuration and structure of side plates 9 can be employed, wherein side plates 12 are provided with a right angle flanged portion 13 able to function as back plate 10.
  • a series of openings 14 arcuately aligned, may be provided along the raised leg portion side plates 9, and are so positioned that upon the pivoting of stabilizing tab 4 within tab housing 8, a portion of flanged sides 5 of stabilizing tab 4 will intersect with openings 14.
  • a series of openings 16 along the bottom leg of side plate 9 may also be provided in parallel plane to openings 7 on stabilizing tab 4.
  • Tab housing 8 is affixed to transom 2 by ordinary means such as by screws 15 through back plate 10, or as as shown in FIG. 7, through flanges 13. It has been found that screws are preferable for s0 affixing since it is not necessary to provide a thorough opening in transom 2 in such case, thereby avoiding the necessity of providing water sealing apparatus. However, nuts and bolts with seal Washers are useable.
  • the pivotal mounting of stabilizing tab 4 to side plates 9 or 12 is effected by the insertion of a pivoting member through a preselected opening 16 and a preselected opening 7 of trim tab 4 and securing as shown in FIG. 5.
  • a bolt 17 is employed in combination with a washer 18 and a lock nut arrangement 19.
  • a bushing 20 can be provided between side plate 9 and flanged side 5, or a washer arrangement 21 such as shown in FIG. 6 will suflice.
  • the bolt 17 combination will be in constant contact with the water and it should be rust resistant and the bushing 20 is preferably of plastic.
  • the bushing 26 may be flanged or tightly set so it will not fall out of place while the tab 4 is being set and also reduces friction.
  • a rod 22 can be provided pivotally interconnecting side plates 12 with trim tab 4 through side flanges 5.
  • the maximum desired pivot of stabilizing tab 4 can be selectively controlled by the insertion of a stop 23 which can be a simple nut and bolt or plug arrangement within preselected opening or openings 14 on side plates 8.
  • the back plate 10 of housing 8 can be L shaped so as to extend below and beneath the rear flange 6 of stabilizing tab 4. While there is preferably no abutment of the stabilizing tab 4 with the vertical portion of back plate 10, the lip of the L of back plate 10 acts as a stop against undesired reversal of angle of stabilizing tab 4.
  • an L-shaped stop bracket 24 can be employed, functioning in the same manner as flange 25.
  • stop bracket 24 can be affixed to the transom 2 in a slightly elevated position with respect to the normal horizontal plane of stabilizing tab 4.
  • the same result can similarly be accomplished by having the bottom leg of L-shaped flange 25 bent at an upward angle.
  • roof 11 may act as a stop against rotation of stabilizing tab 4. Where stop 23 is employed, roof 11 is unnecessary; however, it is preferably included since it not only adds stability to the housing 8 or side plate arrangement as shown in FIG. 7, it additionally acts as a splash guard and may give some propulsive force jetting out a water stream while the boat is in motion.
  • the trim tab 1 is aflixed to the transom 2 either through back plate 10 or flanges 13 so that the trim tab 1 would be slightly below the water level of the craft when the craft is in a generally horizontal position.
  • the stabilizing tab 4 is pivotally aflixed preferably having a greater surface area inboard of the pivot points although such positioning is not critical.
  • the present invention is readily adaptable for use with varying crafts, varying engines on the same craft or for varying the desired plane of drive for a craft.
  • the tab 4 has a wide range of adaptation to both load and speed once the pivot point is selectedand stops set. It is also adaptable when used in pairs for compensating for a natural roll or list of a craft due to construction by varying the pivot points on each of the two trim tabs 1.
  • trim tab 1 of the present invention is shown affixed to the stern or transom 2 of the craft 3, it is possible to affix the trim tabs 1 on either side of the craft 3.
  • a self adjusting trim tab adapted to be mounted on a water craft comprising, one portion adapted to be mounted on said craft, a stabilizing tab, a first stabilizing tab mounting means, a second stabilizing tab mounting means, said first and second stabilizing tab mounting means extending longitudinally with respect to said craft, a lower stabilizing tab stop, an upper stabilizing tab stop, means .iaintaining said first and second stabilizing tab mounting means in fixed relationship, and pivot means intermediate the length of said stabilizing tab mounting means adapted to allow said stabilizing tab to pivot between said lower and upper stops.
  • pivot means include a pair of upwardly extending side flanges extending from said stabilizing tab, each said side flange having at least one opening therethrough, at least one opening on each of said first and second stabilizing tab mounting means in registration with said side flange opening and fixed means passing through said registered openings whereby said stabilizing tab may rotate about said fixed means.
  • pivot means comprise a rod member extending through said side flanges and said stabilizing tab mounting means.
  • each said side flange and each said first and second stabilizing tab mounting means includes a plurality of openings providing selective pivot points for said stabilizing tab.
  • said upper stabilizing tab stop means comprise at least one opening on said stabilizing tab mounting means, said opening along an intersecting plane with said stabilizing tab when said stabilizing tab is pivoted upward, and fixed means within said opening projecting inward between said first and second stabilizing tab mounting means.
  • said lower stabilizing tab stop means includes afixed member below one edge of said stabilizing tab.
  • each said trim tab including one portion adapted to be mounted on said craft, a stabilizing tab, a first stabilizing tab mounting means, a second stabilizing tab mounting means, said first and second stabilizing tab mounting means extending longitudinally 6 with respect to said craft, a lower stabilizing tab stop, References Cited an upper stabilizing tab stop, means maintaining said first and second stabilizing tab mounting means in fixed UNITED STATES PATENTS relationship, and pivot means intermediate the length 1,003,364 9/1911 Langston 114-665 of said stabilizing tab mounting means adapted to allow 5 3,200,782 8/1965 Walden et :al. 114-66,.5 said stabilizing tab to pivot between said lower and up- 3,326,164 6/1967 Kercheval 114-66.5
  • each said trim tab mounted in fixed position below the water level of said craft in spaced apart re- ANDREW H. FARRELL, Primary Examiner. lationship.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Description

March 12, 1968 L. LO BUE BOAT STABILIZING UNITS 2 Sheets-Sheet 1 Filed Oct. 5, 1966 ATTORNEYS.
March 12, 1968 U 3,372,663
BOAT STABILIZING UNITS Filed Oct 5, 1966 2 Sheets-$heet 2 r INVENTOR. 5 4 [5 LOU/5 LoBl/E ATTORNEYS.
United States Patent Office 3,372,663 Patented Mar. 12, 1%68 3,372,663 BOAT STABILIZING UNITS Louis L Bue, Paterson, N.J., nssignor to Aqua Stables, Inc., Paterson, NJ., a corporation of New Jersey Filed Oct. 5, 1966, Ser. No. 584,416 13 Claims. (Cl. 114-665) The present invention relates to boat stabilizing units and more particularly to trim tab attachments for the transom tor hull of a power driven boat.
The forward motion of a power boat, whether of the inboard or outboard variety, generally results in the lifting of the forward section or the bow out of the water. The same lifting effect may be similarly caused by turbulent water. This lifting of the bow results in drag due to Water resistance, a choppy ride and additionally may block the vision of the boat operator due to the angle of elevation of the how.
The lifting in many instances causes substantial loss in efficiency of the power motor, not only due to the extra drag caused by water resistance, but due to the fact the uneveness or chopping effect of the craft in the water many times is so severe that it can raise the propellor out of the water for short intervals.
In the past, numerous devices have been employed in an attempt to stabilize the craft in a fairly horizontal plane with respect to the water and generally these devices were in the form of mechanically actuated or controlled elevator plates aflixed to the stern or transom of the craft at approximately water level. These plates were in most cases permanently aflixed directly to the transom so as to angle downward into the water to create a lifting force at the rear of the craft during forward movement of the craft.
Since the lifting force at the rear of the craft was a function of the forward speed of the c aft and the angle of the plates, these fixed plates were generally inefiicient and had to be pre-set for a single need.
Other devices were developed to allow for the change in the angle of the plates by mechanical means such as by electrical controls, fluid pressure, etc., however, since these devices had to be actuated by the craft operator, and ac tuation of these devices was desirable at the same time a change in speed was desired, it became a complicated maneuver for the operator. Additionally, the mechanical adjustment means were both comparatively expensive and were dependent upon auxiliary power sources which could fail.
Simpler devices were developed such as through the user of compression springs which were aflixed to the plates and depending upon the adjustment of, and the compressional strength of the springs, reset the angle of the plates for differing speeds. However, even these devices were dependent upon mechanical aids for actuation, and were generally pre set, at least in normal position so that the plates were angu'lated at a relatively high pitch for low speeds and light loads. It was also difficult to readily adapt such devices which were normally used in pairs to compensate for any natural roll or list which a craft might have due to its construction or the lack of balance of the load in the craft.
The trim tab of the present invention is a self'actuating, self-adjusting device mounted so as to be slightly below the water level, affixed to the transom of the craft, with the tab pivotally mounted at a point outward of the transom, along its length so as to pivot from a horizontal plane to a pitched angle by the action of the water itself, the pitch being a direct function of the speed of the craft, thereby eliminating the requirement of mechanical adjustment by either the operator or through other means. By selective setting of the pivot points, a wide variety of selective angulation of the craft to meet varying needs is provided.
Although such novel feature or features believed to be characteristic of the invention are pointed out in the claims, the invention and the manner in which it may be carried out may be further understood by reference to the decsription following and the accompanying drawings.
FIG. 1 is a perspective view of the trim tabs of the present invention aflixed to the transom of a craft.
FIG. 2 is a plan view of a craft employing the trim tabs showing the craft during the initial period of forward motion.
FIG. 3 is a plan view of the craft of FIG. 2 with the trim tabs actuated.
FIG. 4- is a section of FIG. 1 along lines 4-4, showing the device in operative position.
FIG. 5 is a partial section of FIG. 4 along lines 55.
FIG. 6 is an another embodiment of FIG. 5.
FIG. 7 is a perspective view of another embodiment of the present invention.
Referring now to the figures in greater detail, Where like reference number denote like parts in the various figures.
As shown in FIG. 1, the trim tab 1 of the present invention is generally employed in pairs affixed to the transom 2 or stern of a craft 3. As more particularly shown in FIG. 4, the trim tab 1 comprises a stabilizing tab 4 of a substantially fiat rectangular configuration having upwardly flanged sides 5 and as shown in FIG. 4, an upward rear flange 6. A spine 26 may be formed along one edge of the stabilizing tab 4 for rigidity.
A series of registered openings 7 are provided along the flanged sides 5 and provide varied pivot points for the stabilizing tab 4.
As shown in FIGS. 1 and 4, stabilizing tab 4 is pivotally mounted at a point outward of the transom 2 within tab housing 8, through side plates 9, the housing 8 having a substantially hollow bottom, with substantially L- shaped side plates 9, back plate 10, and sloping roof 11.
In lieu of tab housing 8, as shown in FIG. 7, side plates 12 of the same general configuration and structure of side plates 9 can be employed, wherein side plates 12 are provided with a right angle flanged portion 13 able to function as back plate 10.
A series of openings 14 arcuately aligned, may be provided along the raised leg portion side plates 9, and are so positioned that upon the pivoting of stabilizing tab 4 within tab housing 8, a portion of flanged sides 5 of stabilizing tab 4 will intersect with openings 14. A series of openings 16 along the bottom leg of side plate 9 may also be provided in parallel plane to openings 7 on stabilizing tab 4.
Tab housing 8 is affixed to transom 2 by ordinary means such as by screws 15 through back plate 10, or as as shown in FIG. 7, through flanges 13. It has been found that screws are preferable for s0 affixing since it is not necessary to provide a thorough opening in transom 2 in such case, thereby avoiding the necessity of providing water sealing apparatus. However, nuts and bolts with seal Washers are useable.
The pivotal mounting of stabilizing tab 4 to side plates 9 or 12 is effected by the insertion of a pivoting member through a preselected opening 16 and a preselected opening 7 of trim tab 4 and securing as shown in FIG. 5. A bolt 17 is employed in combination with a washer 18 and a lock nut arrangement 19. A bushing 20 can be provided between side plate 9 and flanged side 5, or a washer arrangement 21 such as shown in FIG. 6 will suflice. The bolt 17 combination will be in constant contact with the water and it should be rust resistant and the bushing 20 is preferably of plastic. The bushing 26 may be flanged or tightly set so it will not fall out of place while the tab 4 is being set and also reduces friction.
To aid in assembly and to make interchange of pivot points easier, in lieu of bolt 17, as shown in FIG. 7, a rod 22 can be provided pivotally interconnecting side plates 12 with trim tab 4 through side flanges 5.
The maximum desired pivot of stabilizing tab 4 can be selectively controlled by the insertion of a stop 23 which can be a simple nut and bolt or plug arrangement within preselected opening or openings 14 on side plates 8.
As shown in FIG. 4, the back plate 10 of housing 8 can be L shaped so as to extend below and beneath the rear flange 6 of stabilizing tab 4. While there is preferably no abutment of the stabilizing tab 4 with the vertical portion of back plate 10, the lip of the L of back plate 10 acts as a stop against undesired reversal of angle of stabilizing tab 4.
As shown in FIG. 7, in lieu of the L-shaped flange on back plate 10, where no back plate 10 is employed, an L-shaped stop bracket 24 can be employed, functioning in the same manner as flange 25.
Where it is desired to provide a minimum angle of elevation for stabilizing tab 4, stop bracket 24 can be affixed to the transom 2 in a slightly elevated position with respect to the normal horizontal plane of stabilizing tab 4. The same result can similarly be accomplished by having the bottom leg of L-shaped flange 25 bent at an upward angle.
In lieu of stop 23 on side plates 9, the roof 11 may act as a stop against rotation of stabilizing tab 4. Where stop 23 is employed, roof 11 is unnecessary; however, it is preferably included since it not only adds stability to the housing 8 or side plate arrangement as shown in FIG. 7, it additionally acts as a splash guard and may give some propulsive force jetting out a water stream while the boat is in motion.
In operation, the trim tab 1 is aflixed to the transom 2 either through back plate 10 or flanges 13 so that the trim tab 1 would be slightly below the water level of the craft when the craft is in a generally horizontal position. The stabilizing tab 4 is pivotally aflixed preferably having a greater surface area inboard of the pivot points although such positioning is not critical.
As shown in FIG. 2, when the craft 3 begins its forward movement, the bow will be slightly elevated. As the craft travels through the water as shown in FIG. 3, water pressure beneath the craft will pivot stabilizing tab 4 upward at its inboard portion. Angulation of the stabilizing tab 4 is a function of the water pressure and the natural planing of the craft 3 on the water. During slower speeds or rough weather, the angle of elevation of the stabilizing tabs 4 will be greatest, the stabilizing tabs 4 raising the stern and keeping the craft 3 in a horizontal plane. As the speed of the craft 3 increases, the stabilizing tabs 4 will similarly maintain the craft 3 in horizontal position. However, the angle of elevation will lessen the efiect being similar to the efiect of trim tabs of an air foil. By selection of pivot points and stops 23, the present invention is readily adaptable for use with varying crafts, varying engines on the same craft or for varying the desired plane of drive for a craft. The tab 4 has a wide range of adaptation to both load and speed once the pivot point is selectedand stops set. It is also adaptable when used in pairs for compensating for a natural roll or list of a craft due to construction by varying the pivot points on each of the two trim tabs 1.
While as shown in the drawing, the trim tab 1 of the present invention is shown affixed to the stern or transom 2 of the craft 3, it is possible to affix the trim tabs 1 on either side of the craft 3.
The terms and expressions which are employed are used as terms of description; it is recognized, though, that various modifications are possible within the scope of the invention claimed.
Having thus described certain forms of the invention in some detail, what is claimed is:
1. A self adjusting trim tab adapted to be mounted on a water craft comprising, one portion adapted to be mounted on said craft, a stabilizing tab, a first stabilizing tab mounting means, a second stabilizing tab mounting means, said first and second stabilizing tab mounting means extending longitudinally with respect to said craft, a lower stabilizing tab stop, an upper stabilizing tab stop, means .iaintaining said first and second stabilizing tab mounting means in fixed relationship, and pivot means intermediate the length of said stabilizing tab mounting means adapted to allow said stabilizing tab to pivot between said lower and upper stops.
2. The invention of claim 1 wherein said first and second stabilizing tab mounting means are substantially L-shaped.
3. The invention of claim 1 wherein said pivot means include a pair of upwardly extending side flanges extending from said stabilizing tab, each said side flange having at least one opening therethrough, at least one opening on each of said first and second stabilizing tab mounting means in registration with said side flange opening and fixed means passing through said registered openings whereby said stabilizing tab may rotate about said fixed means.
4. The invention of claim 3 wherein said fixed means pass through a flanged bushing, said bushing flange interposed between said stabilizing tab and said stabilizing tab mounting means.
5. The invention of claim 1 wherein said pivot means comprise a rod member extending through said side flanges and said stabilizing tab mounting means.
6. The invention of claim 3 wherein each said side flange and each said first and second stabilizing tab mounting means includes a plurality of openings providing selective pivot points for said stabilizing tab.
7. The invention of claim 1 wherein said upper stabilizing tab stop means comprise at least one opening on said stabilizing tab mounting means, said opening along an intersecting plane with said stabilizing tab when said stabilizing tab is pivoted upward, and fixed means within said opening projecting inward between said first and second stabilizing tab mounting means.
8. The invention of claim 7 including a plurality of openings along said intersecting plane with said stabilizing tab when said stabilizing tab is pivoted upward for selective positioning of said fixed means.
9. The invention of claim 1 wherein said lower stabilizing tab stop means includes afixed member below one edge of said stabilizing tab.
10. The invention of claim 1 wherein a roof member is provided above said first and second stabilizing tab mounting means integral to first and second stabilizing tab mounting means.
11. The invention as claimed in claim 10 wherein a back plate is provided integral 'to said first and'second stabilizing tab mounting means and said roof member to form a housing for said stabilizingvtab.
12. The invention as claimed in claim 1 wherein said stabilizing tab includes a spine.
13. In combination with a water craft, a pair of self adjusting trim tabs, each said trim tab including one portion adapted to be mounted on said craft, a stabilizing tab, a first stabilizing tab mounting means, a second stabilizing tab mounting means, said first and second stabilizing tab mounting means extending longitudinally 6 with respect to said craft, a lower stabilizing tab stop, References Cited an upper stabilizing tab stop, means maintaining said first and second stabilizing tab mounting means in fixed UNITED STATES PATENTS relationship, and pivot means intermediate the length 1,003,364 9/1911 Langston 114-665 of said stabilizing tab mounting means adapted to allow 5 3,200,782 8/1965 Walden et :al. 114-66,.5 said stabilizing tab to pivot between said lower and up- 3,326,164 6/1967 Kercheval 114-66.5
per stops, each said trim tab mounted in fixed position below the water level of said craft in spaced apart re- ANDREW H. FARRELL, Primary Examiner. lationship.

Claims (1)

1. A SELF ADJUSTING TRIM TAB ADAPTED TO BE MOUNTED ON A WATER CRAFT COMPRISING, ONE PORTION ADAPTED TO BE MOUNTED ON SAID CRAFT, A STABILIZING TAB, A FIRST STABILIZING TAB MOUNTING MEANS, A SECOND STABILIZING TAB MOUNTING MEANS, SAID FIRST AND SECOND STABILIZING TAB MOUNTING MEANS EXTENDING LONGITUDINALLY WITH RESPECT TO SAID CRAFT, A LOWER STABILIZING TAB STOP, AN UPPER STABILIZING TAB STOP, MEANS MAINTAINING SAID FIRST AND SECOND STABILIZING STOP, MOUNTING MEANS IN FIXED RELATIONSHIP, AND PIVOT MEANS INTERMEDIATE THE LENGTH OF SAID STABILIZING TAB MOUNTING MEANS ADAPTED TO ALLOW SAID STABILIZING TAB TO PIVOT BETWEEN SAID LOWER AND UPPER STOPS.
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628486A (en) * 1970-01-15 1971-12-21 Charles H Bennett Automatic trim attachment for power boats
US4738642A (en) * 1985-04-17 1988-04-19 Kawasaki Jukogyo Kabushiki Kaisha Slidable mounting board for small water craft
US4896621A (en) * 1988-07-29 1990-01-30 Coles Charles F Method of modifying a boat hull to obtain enhanced lift and rough water stability
US4951591A (en) * 1988-07-29 1990-08-28 Coles Charles F Powered boat hull
US6895883B2 (en) 2001-03-12 2005-05-24 Charles F. Coles Powered boat hull
US20100101475A1 (en) * 2007-03-05 2010-04-29 Peter Mueller Double trim tab
US9174703B2 (en) 2013-10-11 2015-11-03 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9260161B2 (en) 2011-11-12 2016-02-16 Malibu Boats, Llc Surf wake system for a watercraft
US9580147B2 (en) 2011-09-16 2017-02-28 Malibu Boats, Llc Surf wake system for a watercraft
US9669903B2 (en) 2014-02-04 2017-06-06 Malibu Boats, Llc Methods and apparatus for facilitating watercraft planing
US9802684B2 (en) 2013-10-11 2017-10-31 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9891620B2 (en) 2015-07-15 2018-02-13 Malibu Boats, Llc Control systems for water-sports watercraft
US10358189B2 (en) 2013-10-11 2019-07-23 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US11370508B1 (en) 2019-04-05 2022-06-28 Malibu Boats, Llc Control system for water sports boat with foil displacement system
US11932356B1 (en) 2020-08-24 2024-03-19 Malibu Boats, Llc Powered swim platform
US12252222B2 (en) 2020-09-23 2025-03-18 Mastercraft Boat Company, Llc Boats, methods, and devices used to generate a desired wake

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1003364A (en) * 1907-08-17 1911-09-12 Frederick B Langston Boat construction.
US3200782A (en) * 1964-11-06 1965-08-17 Samuel L Walden Power boat attachment
US3326164A (en) * 1965-07-02 1967-06-20 Frank T Kercheval Boat leveling construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1003364A (en) * 1907-08-17 1911-09-12 Frederick B Langston Boat construction.
US3200782A (en) * 1964-11-06 1965-08-17 Samuel L Walden Power boat attachment
US3326164A (en) * 1965-07-02 1967-06-20 Frank T Kercheval Boat leveling construction

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628486A (en) * 1970-01-15 1971-12-21 Charles H Bennett Automatic trim attachment for power boats
US4738642A (en) * 1985-04-17 1988-04-19 Kawasaki Jukogyo Kabushiki Kaisha Slidable mounting board for small water craft
US4896621A (en) * 1988-07-29 1990-01-30 Coles Charles F Method of modifying a boat hull to obtain enhanced lift and rough water stability
US4951591A (en) * 1988-07-29 1990-08-28 Coles Charles F Powered boat hull
US8201514B2 (en) 2001-03-12 2012-06-19 Coles Charles F Powered boat hull
US6895883B2 (en) 2001-03-12 2005-05-24 Charles F. Coles Powered boat hull
US20050183650A1 (en) * 2001-03-12 2005-08-25 Coles Charles F. Powered boat hull
US7204196B2 (en) 2001-03-12 2007-04-17 Coles Charles F Powered boat hull
US20090320737A1 (en) * 2001-03-12 2009-12-31 Coles Charles F Powered boat hull
US20100101475A1 (en) * 2007-03-05 2010-04-29 Peter Mueller Double trim tab
US8387551B2 (en) * 2007-03-05 2013-03-05 Peter Müller Double trim tab
US12097930B2 (en) 2011-09-16 2024-09-24 Malibu Boats, Llc Surf wake system for a watercraft
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