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US3605603A - Damper construction - Google Patents

Damper construction Download PDF

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Publication number
US3605603A
US3605603A US875982A US3605603DA US3605603A US 3605603 A US3605603 A US 3605603A US 875982 A US875982 A US 875982A US 3605603D A US3605603D A US 3605603DA US 3605603 A US3605603 A US 3605603A
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Prior art keywords
shutter
shaped
damper construction
rails
hinge
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Expired - Lifetime
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US875982A
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Francis J Mccabe
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1486—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by bearings, pivots or hinges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1406—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Definitions

  • the apparatus of the present invention has shutters that do not bind, but swing freely on hinges regardless of dirt accumulations, do not overtravel and provide a positive seal to prevent back flow.
  • FIG. 1 is a front view of a shutter in accordance with the present invention
  • FIG. 2 is a vertical sectional view, enlarged, taken approximately on the line 2--2 of FIG. 1;
  • FIG. 3 is a fragmentary sectional view of a portion of the shutter shown in FIG. 2;
  • FIG. 4 is a fragmentar perspective view showing the details of construction.
  • the damper construction includes an outer frame 9 of rectangular shape, mounted in a wall with top and bottom rails 11 and 12 and vertical side rails 14 connecting the rails 11 and 12.
  • the respective rails 11 and 12 and the rails 14 can be made as extrusions of metal or of plastic, depending upon the specific field of use.
  • the hinges 15 include a fixedly mounted hinge plate 16 and a rotatable hinge plate 17. Each hinge plate 16 is fastened to the side rails 14 by insertion into T-shaped slots 18 and then edge staked.
  • Each hinge plate 16 includes a central panel 20 with a T-shaped front portion 21 extending therefrom which portion 21 has an upper margin 22 of rounded configuration tapering to an edge 23.
  • the portion 21 also has a lower margin 24 with a flat edge 25 which acts as a shutter stop.
  • the panel 20 at the top thereof has a rear shield 30 extending therefrom which shield 30 is of curved shape and extends back and down from the panel 20 until it contacts the vertical walls 31 of the side rails 14 which rails are shown in FIG. 4 as of E-shape in end view.
  • the central panel 20 has a C-shaped supporting portion 32 extending therefrom at its lowermost point and through an arc slightly in excess of and which supports an overlapping C-shaped portion 33 of rotatable hinge plate 17.
  • the C-shaped portion 33 extends through an are slightl in excess of 180 and has an inturned lip 38 which retains the portion 33 on the portion 32 during movement as well as at both open and closed positions of the hinge but permits of easy longitudinal assembly.
  • the C-shaped portion 33 on the exterior thereof has an outwardly extending blade 34 to reduce the quantity of debris entering the interior of the portion 32 and which might cause portions 32 and 33 to bind.
  • the hinge plate 17 is connected to and extends from a front panel 35 of a shutter 36.
  • the shutter 36 has a lower raised panel 37 which fits over the T-shaped member 21 and provides a seal in closed position.
  • the side rails 14 have vertical flanges 39 against which the ends of their panels 35 engage in closed position to provide an end seal.
  • a shutter positioning flange 50 is fastened to each shutter 36 by rivets 51 and pivotally'connected to a vertical positioning arm 52 by rivets 53.
  • the arm 52 may be moved by any suitable type of actuating equipment such as an electric motor (not shown).
  • the center attachment of the hinge 15 includes a vertical beam 60 of H-shape in cross section with clips 62 engaged therewith and has a lower channel 63 into which the member 30 is engaged.
  • the clips 62 have upper arms 65 which extend along the top of shield 30 and are engaged in the channel 66 formed by the margin 22 and shield 30 which margin 22 has its edge 23 shaped to retain the arms 65 in channel 66.
  • a damper having a frame and a plurality of pivotally mounted blades, the improvement comprising:
  • said frame having side walls with inwardly depend ing flanges; said flanges having laterally extending notches therein;
  • said connecting means comprising integral T-shaped portions extending from said elements; the stems of said T-shaped portions being disposed within said notches at the longitudinal ends of said elements so that the elements are interfitted with said flanges.
  • each of said fixed hinge elements have a shield extending therefrom partially enclosing the means for pivotally engaging a blade; and each movable blade is pivotally mounted partially within said closure and has extending therefrom a blade-like portion within said enclosure having a free end in close juxtaposition to said shield.
  • each of said blades has a continuous hinge element extending along one longitudinal edge; and each of said fixed hinge elements has an integral continuous longitudinally extending portion pivotally engaging the hinge element of said blade.
  • each of said clips is H-shaped in section and embraces at least one of said flanges of said additional vertical support.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hinges (AREA)

Abstract

DAMPER CONSTRUCTION FOR AUTOMATICALLY OPERATED DAMPERS THAT UTILIZES SHUTTERS MOUNTED ON CONTINUOUS HORIZONTAL HINGES WHICH ARE FREE FROM BINDING, PROVIDE POSITIVE SEALING AND PROVIDE STOPS FOR EACH SHUTTER.

Description

Sept. 20, 1971 I J McCABE 3,605,503
DAMPER CONSTRUCTION Filed Nov. 12, 1969 INVENTOR FRANCIS J. MCA8E av M 7 A 7' TORNE y United States Patent 3,605,603 DAMPER CONSTRUCTION Francis J. McCabe, Penns Park, Pa. Prefco Products,
Inc., P.O. Box 421, Rte. 413, Buckingham, Pa. 18912) Filed Nov. 12, 1969, Ser. No. 875,982
Int. Cl. F24f 13/06 U.S. Cl. 98-110 8 Claims ABSTRACT OF THE DISCLOSURE Damper construction for automatically operated dampers that utilizes shutters mounted on continuous horizontal hinges which are free from binding, provide positive sealing and provide stops for each shutter.
BACKGROUND OF THE INVENTION Field of the invention Description of the prior art Various one way air flow devices have been proposed which include shutters that open to allow air to escape and which close automatically to seal and prevent any back flow from occurring.
None of these devices has proven wholly satisfactory as the shutters tend to bind and the hinges become ineffective due to entrance of dirt into the hinges. In addition, the stops provided are inadequate and proper sealing to prevent backfiow is not attained.
The apparatus of the present invention has shutters that do not bind, but swing freely on hinges regardless of dirt accumulations, do not overtravel and provide a positive seal to prevent back flow.
BRIEF DESCRIPTION OF THE DRAWINGS The nature and characteristic features of the invention will be more readily understood from the following description, taken in connection with the accompanying drawings forming part thereof, in which:
FIG. 1 is a front view of a shutter in accordance with the present invention;
FIG. 2 is a vertical sectional view, enlarged, taken approximately on the line 2--2 of FIG. 1;
FIG. 3 is a fragmentary sectional view of a portion of the shutter shown in FIG. 2; and
FIG. 4 is a fragmentar perspective view showing the details of construction.
It should, of course, be understood that the description and drawings herein are illustrative merely and that various modifications and changes can be made in the structure disclosed without departing from the spirit of the invention.
Like numerals refer to like parts throughout the several views.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now more particularly to the drawings the damper construction includes an outer frame 9 of rectangular shape, mounted in a wall with top and bottom rails 11 and 12 and vertical side rails 14 connecting the rails 11 and 12. The respective rails 11 and 12 and the rails 14 can be made as extrusions of metal or of plastic, depending upon the specific field of use.
Between the rails 14, a plurality of hinges 15 are mounted. The hinges 15 include a fixedly mounted hinge plate 16 and a rotatable hinge plate 17. Each hinge plate 16 is fastened to the side rails 14 by insertion into T-shaped slots 18 and then edge staked. Each hinge plate 16 includes a central panel 20 with a T-shaped front portion 21 extending therefrom which portion 21 has an upper margin 22 of rounded configuration tapering to an edge 23. The portion 21 also has a lower margin 24 with a flat edge 25 which acts as a shutter stop.
The panel 20 at the top thereof has a rear shield 30 extending therefrom which shield 30 is of curved shape and extends back and down from the panel 20 until it contacts the vertical walls 31 of the side rails 14 which rails are shown in FIG. 4 as of E-shape in end view.
The central panel 20 has a C-shaped supporting portion 32 extending therefrom at its lowermost point and through an arc slightly in excess of and which supports an overlapping C-shaped portion 33 of rotatable hinge plate 17. The C-shaped portion 33 extends through an are slightl in excess of 180 and has an inturned lip 38 which retains the portion 33 on the portion 32 during movement as well as at both open and closed positions of the hinge but permits of easy longitudinal assembly.
The C-shaped portion 33 on the exterior thereof has an outwardly extending blade 34 to reduce the quantity of debris entering the interior of the portion 32 and which might cause portions 32 and 33 to bind. The hinge plate 17 is connected to and extends from a front panel 35 of a shutter 36. The shutter 36 has a lower raised panel 37 which fits over the T-shaped member 21 and provides a seal in closed position. The side rails 14 have vertical flanges 39 against which the ends of their panels 35 engage in closed position to provide an end seal.
A shutter positioning flange 50 is fastened to each shutter 36 by rivets 51 and pivotally'connected to a vertical positioning arm 52 by rivets 53.
The arm 52 may be moved by any suitable type of actuating equipment such as an electric motor (not shown).
Referring now to FIG. 4 the center attachment of the hinge 15 is shown and includes a vertical beam 60 of H-shape in cross section with clips 62 engaged therewith and has a lower channel 63 into which the member 30 is engaged. The clips 62 have upper arms 65 which extend along the top of shield 30 and are engaged in the channel 66 formed by the margin 22 and shield 30 which margin 22 has its edge 23 shaped to retain the arms 65 in channel 66.
It will thus be seen that apparatus has been provided with which the objects of the invention are attained.
I claim:
1. In a damper having a frame and a plurality of pivotally mounted blades, the improvement comprising:
(a) a plurality of fixed hinge elements; each of said elements having means for pivotally engaging one of said blades, and means for connecting said element to said frame;
(b) said frame having side walls with inwardly depend ing flanges; said flanges having laterally extending notches therein;
(c) said connecting means comprising integral T-shaped portions extending from said elements; the stems of said T-shaped portions being disposed within said notches at the longitudinal ends of said elements so that the elements are interfitted with said flanges.
2. The invention of claim 1 wherein each of said fixed hinge elements have a shield extending therefrom partially enclosing the means for pivotally engaging a blade; and each movable blade is pivotally mounted partially within said closure and has extending therefrom a blade-like portion within said enclosure having a free end in close juxtaposition to said shield.
3. The invention of claim 1 wherein each of said blades has a continuous hinge element extending along one longitudinal edge; and each of said fixed hinge elements has an integral continuous longitudinally extending portion pivotally engaging the hinge element of said blade.
4. The invention of claim '1 wherein an additional vertical support is provided within said frame; said support having flanges; and additional mounting means are provided for said fixed hinge elements, said additional mounting means comprising clips engaging said vertical support and said hinge elements.
5. The invention of claim 4 wherein a portion of each of said clips is H-shaped in section and embraces at least one of said flanges of said additional vertical support.
6. The invention of claim 4 wherein said fixed hinge elements have shields extending therefrom and each of said clips has a portion extending therefrom embracing said shield in a sliding fit.
7. The invention of claim 6 wherein the portions in embraced relation are complementally configured.
4 8. The invention of claim 6 wherein said clips are interfitted in part with the T-shaped portion of said fixed hinge element.
References Cited UNITED STATES PATENTS 1,269,939 6/1918 Kane 49397X 1,359,558 11/1920 Wine 9*8121 2,205,015 6/1940 LOwry et a1. 49-397X 2,365,378 3/ 1944 Benson 49-39'7X MEYER PERLIN, Primary Examiner W. C. ANDERSON, Assistant Examiner US. Cl. X.R. 98-121
US875982A 1969-11-12 1969-11-12 Damper construction Expired - Lifetime US3605603A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031649A (en) * 1973-04-26 1975-03-28
JPS50121538U (en) * 1974-03-19 1975-10-03
US4375183A (en) * 1981-01-14 1983-03-01 Lynch William R Insulated shutter assembly
US4655122A (en) * 1982-09-30 1987-04-07 Mccabe Francis J Aerodynamic shape with improved lift characteristics
EP0234925A3 (en) * 1986-02-28 1987-11-11 Colt International Holdings A.G. Ventilation device for building roofs
US5029810A (en) * 1990-11-09 1991-07-09 American Standard Inc. High performance damper blade and damper seal combination
US5238453A (en) * 1991-03-12 1993-08-24 Greenheck Fan Corporation Integral pivot damper blade
US20090298405A1 (en) * 2008-05-28 2009-12-03 The Baker Company Low airflow exhaust canopy for biological cabinets
US20100314569A1 (en) * 2009-06-15 2010-12-16 Trane International Inc. Actuator for a fan-powered damper
US11073300B2 (en) 2016-09-13 2021-07-27 Beth-El Zikhron Yaaqov Industries Ltd. Blast valve utilizing an aerodynamically configured blade

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031649A (en) * 1973-04-26 1975-03-28
JPS50121538U (en) * 1974-03-19 1975-10-03
US4375183A (en) * 1981-01-14 1983-03-01 Lynch William R Insulated shutter assembly
US4655122A (en) * 1982-09-30 1987-04-07 Mccabe Francis J Aerodynamic shape with improved lift characteristics
EP0234925A3 (en) * 1986-02-28 1987-11-11 Colt International Holdings A.G. Ventilation device for building roofs
US5029810A (en) * 1990-11-09 1991-07-09 American Standard Inc. High performance damper blade and damper seal combination
US5238453A (en) * 1991-03-12 1993-08-24 Greenheck Fan Corporation Integral pivot damper blade
US20090298405A1 (en) * 2008-05-28 2009-12-03 The Baker Company Low airflow exhaust canopy for biological cabinets
US20100314569A1 (en) * 2009-06-15 2010-12-16 Trane International Inc. Actuator for a fan-powered damper
US8550888B2 (en) 2009-06-15 2013-10-08 Trane International Inc. Actuator for a fan-powered damper
US11073300B2 (en) 2016-09-13 2021-07-27 Beth-El Zikhron Yaaqov Industries Ltd. Blast valve utilizing an aerodynamically configured blade

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