Invention Grant
- Patent Title: Shock absorbing and wear resistant ball check seat for abrasive media
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Application No.: US15384929Application Date: 2016-12-20
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Publication No.: US10591075B2Publication Date: 2020-03-17
- Inventor: Andrew J. Klaphake
- Applicant: Graco Minnesota Inc.
- Applicant Address: US MN Minneapolis
- Assignee: Graco Minnesota Inc.
- Current Assignee: Graco Minnesota Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Kinney & Lange, P.A.
- Main IPC: F16K25/00
- IPC: F16K25/00 ; F04B49/22 ; F16K15/04 ; F16K25/04
Abstract:
A check valve includes a ball and a seat. The seat includes a body and a hole extending through the body. The hole is smaller in diameter than the ball. The body of the seat is formed from ultra-high-molecular-weight polyethylene. The ultra-high-molecular-weight polyethylene of the seat has an ASTM D648 heat deflection temperature of 46.7° C. at 1.8 MPa.
Public/Granted literature
- US20170175913A1 SHOCK ABSORBING AND WEAR RESISTANT BALL CHECK SEAT FOR ABRASIVE MEDIA Public/Granted day:2017-06-22
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