The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2000
Filed:
Oct. 16, 1998
Motohiro Niki, Bunkyo-ku, JP;
Atsushi Kidachi, Sakura, JP;
Mieko Niki, Bunkyo-ku, JP;
Etuko Niki, Bunkyo-ku, JP;
Misako Kidachi, Sakura, JP;
Other;
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.