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. 10, 1991
Filed:
Mar. 06, 1991
Applicant:
Inventor:
John N Tervo, Scottsdale, AZ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
1375278 ; 251218 ; 251308 ;
Abstract
A butterfly-type check valve (8) in which a valve plate (18) moves translationally relative to a pivot axis (90) and incident to rotational movement (118) of the plate. The translational movement is effected by mechanical links (38, 40) which are pivotally secured to the plate and a support assembly (52, 54, 56, 76, 78). The translational movement is guided by two trunnions (30, 32) pivotally secured to the support assembly, and two rods (20, 22) rigidly secured to the plate and extending through the trunnions.