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:
Jun. 07, 1983
Filed:
Sep. 21, 1981
Applicant:
Inventors:
Pradip V Choksi, Northridge, CA (US);
Alan A Davidner, Claremont, CA (US);
Claude A Vidal, Los Angeles, CA (US);
Assignee:
American Hospital Supply Corporation, Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; A61M / ;
U.S. Cl.
CPC ...
55499 ; 55501 ; 55502 ; 55505 ; 55521 ; 55528 ; 55DI / ; 55DI / ; 2104933 ; 2104935 ; 210445 ; 210450 ; 12820512 ; 12820529 ;
Abstract
A filter device used to filter medical anesthesia gases and other inhalable respiratory gases. The filter device has a ported housing, and a filter member within the housing. The filter member is a porous sheet that is transversely pleated and draped to define a peripheral foot of such porous sheet. The peripheral foot is sealed along its entire periphery to the housing. Two sets of intermeshing hangers are provided with both sets of the hangers being anchored to the housing and distortingly maintaining the porous sheet in such a pleated condition.