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:
Jan. 05, 1993
Filed:
May. 20, 1991
Richard C Leveson, Willowdale, CA;
Mark D Bassett, Newmarket, CA;
Photovac International, Inc., Deer Park, NY (US);
Abstract
A fluid control valve arrangement includes a plurality of clusters or pairs of holes extending from one face to the other of a central block. The valves comprise a plurality of deformable blisters formed in a resilient membrane, the blisters positioned so as to coincide with the hole clusters or pairs when the membrane is pressed against a face of the block. The values are closed when the blisters are deformed to an essentially flat shape, advantageously by introducing a high pressure fluid into a cavity above the blisters. The valves are linked together in a desired configuration by grooves formed in the other face of the block.