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. 13, 2026
Filed:
Aug. 30, 2022
Applicant:
Walbro Llc, Cass City, MI (US);
Inventors:
Nobuyuki Kuroki, Sendai, JP;
Katsuaki Hamataka, Sendai, JP;
Mark S. Swanson, Concord, NC (US);
Tetsuya Takahashi, Shibata-Gun, JP;
Teruhiko Tobinai, Sendai, JP;
Assignee:
WALBRO LLC, Cass City, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/00 (2006.01); F02M 37/04 (2006.01); F02M 37/12 (2006.01); F04B 43/00 (2006.01); F04B 43/06 (2006.01); F04B 53/06 (2006.01); F02M 17/04 (2006.01);
U.S. Cl.
CPC ...
F04B 43/06 (2013.01); F02M 37/04 (2013.01); F02M 37/12 (2013.01); F04B 43/0054 (2013.01); F04B 53/06 (2013.01); F02M 17/04 (2013.01);
Abstract
In at least some implementations, a method of forming a diaphragm for a liquid pump, includes clamping a substantially planar piece of material about a periphery, and plastically deforming the piece of material inboard of the clamped periphery. In at least some implementations, the material is plastically deformed by pressing a forming member against the material, or the material is plastically deformed by applying a fluid under pressure against the material.