US3124277A

US3124277A - Rodenttcibe dispenser

Info

Publication number: US3124277A
Authority: US
Publication date: 1964-03-10
Anticipated expiration: 1981-03-10

Description

March 10, 1964 E. c. HELLAND 3,124,277

RODENTICIDE DISPENSER Filed Jan. 2, 1962 7 ,2 I i /4 24 23! y/ r 23 L INVENTOR. l l 26 Elm/42a 6. #524000 BY way RM FIE. E

Arramwsrs United States Patent 3,124,277 RODENTICIDE DISPENSER Edward C. Heliand, 7138 Oakland Ave., Minneapolis, Minn.

Filed Jan. 2, 1962, Ser. No. 163,401 Claims. (Cl. 222185) The present invention has relation to a rodenticide dispenser and more particularly to a dispenser for liquid rodenticides which does not tip and is easily filled, cleaned and maintains the rodenticide at a uniform level in a dispenser trough.

Rodenticide dispensers presently on the market are cumbersome, hard to take apart and do not maintain a uniform level of rodenticide in the dispensing trough. This is especially true for liquid rodenticides, which are commonly used to control pests in homes and business establishments.

The present invention presents a rodenticide dispenser that is very stable when positioned for use and can readily be taken apart for filling and cleaning. In addition, the rodenticide dispenser is provided with a unique level control which Will maintain a uniform level of liquid poison available for consumption by rodents.

The device is easy to make and non-breakable. In addition it is very stable when positioned on a fiat surface and will not be tipped by rodents. The level in the dispenser is maintained to keep spillage to a minimum.

It is an object of the present invention to present a rodenticide dispenser that is easy to fill and clean and will maintain a uniform level of liquid available for use.

In the drawings,

FIG. 1 is a top plan view of a rodenticide dispenser made according to the present invention;

FIG. 2 is a front elevational view of the device of FIG. 1 with parts in section and parts broken away;

FIG. 3 is an end elevational view of the device of FIG. 1 as viewed from a left end thereof; and

FIG. 4 is a fragmentary sectional view taken as on line 4-4 in FIG. 2.

Referring to the drawings and the numerals of reference thereon, a rodenticide dispenser assembly illustrated generally at 11) includes a supply bottle or receptacle 11 which has an outwardly extending tubular neck 12 open to the interior of the receptacle 11 and providing a mouth or outlet opening 13 substantially midway along the longitudinal axis of said receptacle 11 and extending at substantial right angles thereto. The receptacle 11 is made of any suitable material having the properties of polyethylene, which is somewhat resilient and nonbreakable. The receptacle can easily be molded to any desired shape, as shown it is a cylindrical receptacle. The receptacle has closed opposite end panels 1?, 18 and the only outlet is the tubular neck 12.

The receptacle 11 has a pair of

feet members

14, 14 which are integral therewith and extend substantially parallel to the axis of the neck 12 and in the same direction as the neck 12. The

foot members

14, 14 are positioned adjacent the ends of the receptacle. A bottom edge surface 15 of the neck 12 is spaced above a plane defined by the

bottom edge surface

16, 16 of the

foot members

14, 14. Thus the bottom edge surface 15 of the neck is spaced above a supporting surface 17 on which the receptacle 11 is positioned.

The outer surface of neck 12 is cylindrical in shape and has an annular groove 20 defined therein spaced from and adjacent bottom edge 15. A level control orifice 21 is also provided through the wall of neck 12 and is positioned above annular groove 20.

A trough member 22 has a fastening ring portion 23 adapted to be slipped over the neck 12 of the receptacle 11. The fastening ring 23 has a raised internal rib 24 3,124,277, Patented Mar. 10., 1964 which is of configuration to fit into annular groove 20 of neck 12 and retain the trough member 22 in position on the neck. The rib 24 is positioned so that bottom edge surface 15 of the neck 12 is spaced from a bottom wall 25 of the trough member. A part-cylindrical, open top dispenser portion 26 of the trough member 22 extends outwardly from the neck 12. The dispenser portion has a side wall 2'7 terminating on a side edge surface 28 which defines a plane spaced above bottom wall 25. The dispenser portion 26 holds a quantity of liquid rodenticide.

A pair of lugs 30, 31) are provided on an opposite side of receptacle 11 from

legs

14, 14 and are used to support the receptacle 11 when the receptacle is to be filled with rodenticide. Thus the receptacle can be set on a flat surface with the neck 12 extending upwardly and it will not roll during the filling operation.

Operation When a rodenticide dispenser made according to the present invention is to be used, the trough member 22, which is preferably made of a material having the properties of polyethylene, which is resilient, moldable and is nonbreakable, is removed from the neck 12 by expanding the fastening ring portion 23 so that rib 24 slips out of annular groove 21 The receptacle is rested on

lugs

30, 30 and is filled with a liquid rodenticide, which is illustrated by dotted lines at 31. The trough member 22 is then repositioned on neck 12 so that the dispenser portion 26 of the trough member extends outwardly at substantially right angles to the longitudinal axis of receptacle 11. The device is then tipped so that the neck 12 is extending downwardly and the unit is placed in position on supporting surface 17. The liquid rodenticide 31 will run out between the bottom edge surface 15 of neck 12 and bottom wall 25 of the trough member. Air will enter the receptacle 11 through orifice 21 to permit the liquid to be discharged. When the level of rodenticide in the trough member reaches the level as shown at 32 the liquid will partially cover the orifice 21 and thus air will not be permitted to enter the receptacle 11. This will cause a cessation of flow between edge surface 15 and wall 25 and the level 32 will be stabilized.

As rodents consume the rodenticide 31 the level 32 drops below orifice 21 and a quantity of-air will pass through orifice 21 and will form a bubble inside the neck 12 adjacent orifice 21. When the bubble gets large enough to overcome the surface tension of the liquid 31 the bubble will break off from orifice 21 and will rise through the liquid rodenticide into receptacle 11. This will permit an equal quantity of the liquid rodenticide to pass under edge 15 of neck 12 and the level 32 will again be raised above the orifice. By controlling the vertical distance of the orifice above the bottom wall 25 level 32 can be set at any position. Only a small quantity of liquid is in dispenser portion 26 of the trough member and thus there will be much less chance of waste or spillage.

The device as shown is highly usable and will not be tipped because

foot members

14, 14 Will hold the receptacle and trough very stable. The unit is easily disassembled for cleaning and filling and maintains a predetermined relatively low level in dispenser portion 26 to prevent waste and spillage.

What is claimed is:

1. A rodenticide dispenser comprising a substantially cylindrical receptacle having a side surface and opposite end surfaces, a substantially tubular neck integral with said side surface of said receptacle and positioned substantially midway between said opposite end surfaces of said receptacle and extending at substantially right angles to the longitudinal axis thereof, said neck having a terminal edge surface and being provided with an annular groove adjacent said terminal edge surface, said neck further being provided with an orifice positioned between said terminal edge and said side surface of said receptacle, a trough member having a bottom wall and an integral continuous upwardly extending side wall terminating along a plane spaced above said bottom wall and having an attaching ring portion integral with said trough member adjacent one end thereof, said attaching ring portion having an internal rib engageable with said groove in said neck thereby to retain said trough member on said neck, the terminal edge of the neck being spaced from said bottom wall and said orifice being positioned within the space defined by said trough member with said rib positioned in said groove, a pair of foot members, each integral with said receptacle adjacent opposite ends thereof and being of configuration to support said receptacle and prevent it from tipping with said trough member in place on said neck and positioned below said receptacle and resting on a supporting surface.

2. The combination as specified in claim 1 and a pair of lugs, one integral with said receptacle adjacent each end thereof and at a side of said receptacle opposite from said foot members, said lugs being positioned to support said receptacle with said neck extending upwardly when placed on a supporting surface.

3. The combination as specified in claim 1 wherein said receptacle and said trough member are made of a material having the properties of polyethylene.

4. The combination as specified in claim 1 wherein i said trough is semi-cylindrical and wherein it is no wider than the neck extending outwardly from said cylindrical receptacle.

5. A rodenticide dispenser comprising a substantially upright receptacle, a substantially tubular neck integral with said receptacle, said neck having a terminal edge surface and being provided with an annular groove adjacent said terminal edge surface, said neck further being provided with an orifice positioned between said terminal edge and said said receptacle, a semicylindrical trough member having an attaching ring portion integral therewith adjacent one end thereof, said attaching ring portion having an internal rib engageable with said groove in said neck thereby to retain said trough member on said neck, the terminal edge of the neck being spaced from a bottom wall of said trough and said orifice being positioned within the space defined by said trough member with said rib positioned in said groove, said semi-cylindrical trough being no wider than said neck.

References Cited in the file of this patent UNITED STATES PATENTS 2,573,802 Mitchell Nov. 6, 1951 2,584,383 Peck Feb. 5, 1952 FOREIGN PATENTS 168,122 Australia Jan. 15, 1953