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:
Aug. 03, 2021
Filed:
Mar. 03, 2020
Graco Minnesota Inc., Minneapolis, MN (US);
Adam K. Collins, Brooklyn Park, MN (US);
Jacob D. Higgins, White Bear Township, MN (US);
Graco Minnesota Inc., Minneapolis, MN (US);
Abstract
This disclosure concerns a check valve that prevents over compression of a gasket. The check valve comprises a valve housing, a valve cover, and a gasket that seals between the valve housing and the valve cover. A ball fits within the valve housing. The check valve further comprises a ball stop that limits compression of the gasket as the valve cover is tightened with respect to the valve housing. The ball stop serves as a standoff between the valve housing and the valve cover that allows some compression of the gasket as the valve cover is tightened with respect to the valve housing, but at some degree of tightening the incompressible engages both the valve cover and the valve housing to prevent further tightening. Over-compression distorts the gaskets, possibly compromising its sealing function and possibly damaging the gasket.