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. 30, 1982
Filed:
Oct. 14, 1980
Gerhard Schutzer, Stuhr, DE;
Gustav F. Gerdts KG, Bremen, DE;
Abstract
A check valve with a valve seat formed in the valve housing wherein two side-by-side locking members are pivotably mounted in the valve seat for movement between an open and closed position. The locking members have their pivoting edges mounted adjacent and parallel to each other in the housing and have bearing bushings formed along the adjacent edges which engage side-by-side shafts whose ends are engaged to the valve housing. A pair of locking springs each have their windings engaged to one of the shafts which are located between the bearing bushings. Each of said springs has a first shank portion which is rigidly supported by an abutment of the valve housing and a second shank portion which engages the locking member mounted on the same shaft of the corresponding spring to urge the same into a closed position relative to the valve seat.