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:
Jan. 22, 2019
Filed:
Apr. 13, 2017
Graco Minnesota Inc., Minneapolis, MN (US);
Jason J. Willoughby, Minneapolis, MN (US);
David M. Behrens, Hopkins, MN (US);
Graco Minnesota, Inc., Minneapolis, MN (US);
Abstract
A check valve assembly includes a housing extending axially along a center axis of the check valve assembly from a first end to a second end. The housing can include an opening disposed at the first end and an outlet disposed at the second end. A seat is disposed in the opening and connected to the tubular housing. The seat includes an inlet extending axially through the seat. A ball is disposed inside the tubular housing and disposed axially between the seat and the outlet. The ball is larger in diameter than the inlet. A ball guide is disposed inside the tubular housing and is disposed axially between the ball and the outlet. A spring is disposed inside the tubular housing and disposed axially between the ball guide and the outlet. The spring is compressed between the ball guide and the outlet.