Animal husbandry – Confining or housing – For experimental purposes
Patent
1998-10-16
2000-07-25
Poon, Peter M.
Animal husbandry
Confining or housing
For experimental purposes
119493, 119500, A01K 100
Patent
active
06092487&
ABSTRACT:
An air supply/exhaust device to be joined to a box-shaped rearing cage included in an experimental animal rearing apparatus to supply or exhaust air into or from the rearing cage. The air supply/exhaust device comprises an air supply pipe having a front end section provided with air supply/exhaust holes, and a stop ring mounted on a section of the air supply pipe behind the front end section provided with the air supply/exhaust holes. An elastic plug is mounted on a section of the air supply pipe extending behind the stop ring so as to be in contact with a back surface of the stop ring. The elastic plug has the shape of a truncated cone tapered toward an extremity of the air supply/exhaust pipe, and a spring holder is provided on the air supply pipe, and an elastic pressing member is mounted on a section of the air supply pipe between the elastic plug and the spring holder to press the elastic plug continuously toward the stop ring. When the air supply/exhaust device is connected to a box-shaped rearing cage, the elastic plug is inserted through an opening formed in the rear end wall of an upper cage included in a box-shaped rearing box into the upper cage and engages firmly with the edge of the opening to seal the box-shaped rearing cage.
REFERENCES:
patent: 5165362 (1992-11-01), Sheaffer et al.
patent: 5865144 (1999-02-01), Semenuk
Kidachi Atsushi
Kidachi Misako
Niki Etuko
Niki Mieko
Niki Motohiro
Abbott Yvonne R.
Poon Peter M.
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