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. 13, 1988
Filed:
Jul. 30, 1987
Applicant:
Inventor:
Burton L Siegal, Skokie, IL (US);
Assignee:
Kiwi Coders Corporation, Wheeling, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310330 ; 310332 ; 310328 ; 137831 ; 25112901 ;
Abstract
In a membrane valve fluid flow control device which includes a pair of superimposed surfaces wherein the membrane is interposed between the surfaces under compression and further serves as a seal. A raised rib portion is provided to impact limited areas of the membrane and localize compression along a narrow band apart from and surrounding valve chambers and any associated openings through the surface. The raised rib portion will localize compression forces along a narrow band on the membrane and limit lateral flow of the membrane material to prevent thickening or bulging of the material over the valve seat area.