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:
Jul. 14, 2020
Filed:
Nov. 15, 2018
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Bartosz Solarz, Wroclaw, PL;
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Abstract
A check valve comprises a valve housing defining at least one valve opening, and at least one flapper pivotably mounted for rotation relative to the valve housing between an open position in which it permits fluid flow through the respective valve opening and a closed position in which it prevents fluid flow through the valve opening. The valve housing comprises a hinge body which comprising a hinge groove extending in a straight line in a longitudinal direction therethrough from a first end to a second end. The hinge groove has, in a plane transverse to the longitudinal direction, an arcuate profile. The at least one flapper comprises a hinge tongue formed along a proximal edge thereof. The hinge tongue extends in a straight line in a longitudinal direction along the proximal edge of the flapper from a first end to a second end.