Combination cage and watering device permitting automatic removal of bedding therefrom

• US 5,331,920 A
• Filed: 10/28/1992
• Issued: 07/26/1994
• Est. Priority Date: 10/28/1992
• Status: Expired due to Fees

• Current Assignee: Allentown, LLC
• Original Assignee: Allentown Caging Equipment Company Incorporated
• Inventors: Murray, Dale R., Coiro, Michael A. Sr.
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): Manahan, Todd E.
• Application Number:
  US07/967,714
• Time in Patent Office: 636 Days
• Field of Search: 119/18, 119/72, 119/72.5, 119/15
• US Class Current: 119/418
• CPC Class Codes: A01K 1/031 Cages for laboratory animals; Cages for measuring metabolism of animals
• CPC Class Codes: A01K 1/0356 Feeding or drinking devices associated with cages for poultry A01K31/005, A01K31/17, A01K39/00; for birds A01K31/06

Abstract

A watering apparatus for supplying water from an outside system to an animal confined in a cage maintains an isolation barrier and has an outlet through which animal bedding and excess water escapes when the animal stuffs bedding in the area surrounding the water supply. The cage is defined by an interior and an exterior surface, a top, a bottom, two opposing ends each having a top and a bottom portion, and two opposing sides. The apparatus includes a internal cup that passes through an aperture located in one of the two opposing ends. A slot in the internal cup allows the animal to access the outside source of water. The apparatus also includes a flexible disk with a cutaway portion and a slit to receive the outside watering system. The cutaway portion of the disk, in combination with the shape of the cup, forms an outlet on the exterior of the cage. The space between the cup and the flexible disk defines a V-shaped cavity that flares outwardly from the slot in the cup toward the backing plate and flexible disk. When an animal stuffs bedding into the area surrounding the water supply, the bedding falls downwardly from the slot, through the outlet, and away from the interior of the cage. This prevents the water valve from being clogged and prevents any excess water from leaking into the cage. The cup in combination with the backing plate and flexible disk also prevents airborne contaminants from entering into the cage.

Claims

1. A combination cage and watering apparatus which allows the supply of water from an outside watering system to an animal confined in an isolation cage containing animal bedding while preventing the entrance of airborne contaminants and which passes through an aperture in a cage defined by a top, a bottom, an interior and an exterior surface, two opposing ends, each opposing end having a top and a bottom portion, and two opposing sides, said apparatus comprising:

an internal cup having a front end and a back end, which tapers outwardly from said back end toward said front end, and which passes through said aperture, said internal cup including a slot located at said back end for allowing said animal to receive water from an outside watering valve;

access port means in said internal cup for receiving said outside watering system to supply water to said animal; and

,

bedding removal means,

wherein when said animal bedding is stuffed through said slot by said animal, it automatically passes through said bedding removal means thereby preventing said outside watering valve from becoming clogged with said animal bedding.

2. The apparatus of claim 1 wherein said internal cup is located at one of said two opposing ends of said cage.

3. The apparatus of claim 2 wherein said internal cup is located near said bottom portion of one of said two opposing ends.

4. The apparatus of claim 3 wherein said internal cup further includes a rim located at said front end of said internal cup.

5. The apparatus of claim 4 wherein said rim of said internal cup is secured on said exterior surface of said cage.

6. A combination cage and watering apparatus which supplies water from an outside watering system having a valve to an animal confined in an isolation cage containing animal bedding, said cage defined by a top, a bottom, an interior and an exterior surface, two opposing sides, two opposing ends, each opposing end having a top and a bottom portion, and an aperture, said apparatus comprising:

an internal cup having a front end and a back end which passes through said aperture, said internal cup being located in one of said two opposing ends near said bottom portion of said one opposing end, said internal cup including a slot located at said back end and a rim located at said front end, said rim being secured on said exterior surface of said cage;

access port means secured to said rim of said internal cup for receiving said outside watering system, said access port means including a flexible disk having a slit and a cutaway portion, said slit forming a reclosable entrance for permitting said valve of said outside watering system to be introduced therethrough to provide a supply of water to said animal while preventing the entrance of airborne contaminants thereby maintaining the isolation barrier of said cage; and

,

bedding removal means including an outlet formed on said exterior surface of said cage by said cutaway portion of said flexible disk,

wherein when said animal bedding is stuffed through said access port means by said animal, said animal bedding automatically passes through said bedding removal means thereby preventing said valve of said outside watering system from becoming clogged with said animal bedding.

7. The apparatus of claim 6 wherein a V-shaped cavity is defined by the space between said internal cup and said flexible disk and flares outwardly from said slot of said internal cup towards said flexible disk.

8. The apparatus of claim 7 wherein when said internal cup is passed through said aperture of one of said two opposing ends of said cage, said apparatus further comprises:

a internal cup retainer plate attached to said interior surface of said cage;

a backing plate attached to said rim of said internal cup, said disk being attached to said backing plate;

a cover plate attached to said disk; and

,

attachment means,

wherein said attachment means attach said apparatus to

9. The apparatus of claim 8 wherein said internal cup retainer plate has an aperture for receiving said internal cup.

10. The apparatus of claim 9 wherein said backing plate has a cutaway portion and an aperture for receiving said outside watering system valve.

11. The apparatus of claim 10 wherein said cover plate has a cutaway portion and an aperture for receiving said outside watering system valve.

12. The apparatus of claim 11 wherein said outlet is defined by said cutaway portion of said backing plate and said cutaway portion of said cover plate.

13. The apparatus of claim 12 wherein said internal cup further includes an aperture through which water passes when said cage is washed.

14. A watering apparatus for an animal confined in a cage containing animal bedding, said apparatus comprising:

a cup having a front and a back;

access port means in said cup for receiving an outside watering system;

a slot located at said back of said cup; and

,

bedding removal means located at said front of said cup for the automatic removal of bedding,

wherein when said animal bedding is stuffed through said slot by said animal, said animal bedding automatically passes through said bedding removal means thereby preventing said outside watering system from becoming clogged with said animal bedding.

15. The apparatus of claim 14 wherein said access port means includes a flexible disk having a slit and a cutaway portion, said slit forming a reclosable entrance for permitting said outside watering system to be introduced therethrough to provide a supply of water to said animal.

16. A watering apparatus for an animal confined in a cage containing animal bedding, said apparatus comprising:

a cup having a front and a back, said cup including a slot located at said back for allowing said animal to receive water from said outside watering system;

access port means in said cup for receiving an outside watering system, said access port means including a flexible disk having a slit and a cutaway portion, said slit forming a reclosable entrance for permitting said outside watering system to be introduced therethrough to provide a supply of water to said animal; and

,

bedding removal means located at said front of said cup,

wherein when said animal bedding is stuffed through said slot by said animal, said animal bedding automatically passes through said bedding removal means thereby preventing said outside watering system from becoming clogged with said animal bedding.

17. The apparatus of claim 16 wherein said bedding removal means includes an outlet formed by said cutaway portion of said flexible disk so that when said animal bedding is stuffed through said slot, said animal bedding is removed through said outlet.

18. A combination cage and watering apparatus which allows the supply of water from an outside watering system to an animal confined in an isolation cage containing animal bedding while preventing the entrance of airborne contaminants and which passes through an aperture in a cage defined by a top, a bottom, an interior and an exterior surface, two opposing ends, each opposing end having a top and a bottom portion, and two opposing sides, said apparatus comprising:

an internal cup having a front end and a back end which passes through said aperture, said cup located at one of said two opposing ends of said cage near said bottom portion of said one opposing end, said internal cup including a slot located at said back end and a rim located at said front end, said rim being secured on said exterior surface of said cage;

access port means in said internal cup for receiving said outside watering system to supply water to said animal, said access port means including a flexible disk having a slit and a cutaway portion secured to said rim of said internal cup; and

,

bedding removal means,

wherein said slit of said flexible disk forms a reclosable entrance for permitting said outside watering valve to be introduced therethrough to provide a supply of water to said animal while preventing the entrance of airborne contaminants thereby maintaining the isolation barrier of said cage.