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:
Sep. 27, 1994
Filed:
Feb. 04, 1993
Applicant:
Inventors:
John E Sheaffer, Perryville, MD (US);
Eric A Deitrich, Woodbine, MD (US);
Assignee:
Lab Products, Maywood, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01K / ;
U.S. Cl.
CPC ...
119 15 ; 119 17 ;
Abstract
The ventilated cage and rack system is provided having a plurality of shelves. An exhaust plenum is removably affixed to each shelf for providing air to predetermined air positions along each shelf. At least one cage is provided for housing at least one animal therein, the cage is a cage level barrier having a gas impermeable portion having upstanding sidewalls and a filter positioned on the side wall. A removable cage canopy is mounted to each shelf for guiding the cage toward the predetermined air position and containing air escaping from the filter bonnet within a confined area for removal.