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. 09, 1998
Filed:
Feb. 17, 1995
Applicant:
Inventor:
Karl M Williams, Bryan, TX (US);
Assignee:
O.I. Corporation, College Station, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251 25 ; 251 611 ; 251367 ; 251368 ;
Abstract
A diaphragm valve for use with cryogenic systems controls the flow of cryogen and is capable of operating at high pressures for extended periods of time. The diaphragm consists of a polyamide film sandwiched between to manifold sections. A pilot valve controls the pressure of cryogen against one face of the diaphragm to open and close the diaphragm.