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:
Mar. 04, 1980
Filed:
Apr. 10, 1978
Johann W Ferri, Uster, CH;
Luwa AG, Zurich, CH;
Abstract
A shutoff device comprising a substantially tubular-shaped housing within which there is fixed at its ends an elastic hose body. The hose body extends in the lengthwise direction of the housing and forms a closable throughpassage which flow communicates an inlet opening of the housing with its outlet opening. The inner wall of the housing and the hose body bound a substantially ring-shaped pressure compartment into which opens a conduit connection arranged at the housing. The hose body has a number of folds which extend essentially parallel to one another.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile