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. 04, 2026
Filed:
Jul. 28, 2022
Applicant:
Mainspring Energy, Inc., Menlo Park, CA (US);
Inventors:
Nathaniel Oliver, Menlo Park, CA (US);
Matthew Svrcek, Redwood City, CA (US);
Rucha Bedarkar, Mountain View, CA (US);
Assignee:
Mainspring Energy, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/22 (2006.01);
U.S. Cl.
CPC ...
F16J 9/22 (2013.01);
Abstract
Systems and methods are provided for a sealing element arranged in a ring groove of a piston assembly to seal against the ring groove at a first interface and to seal against a bore of a cylinder, in which the piston assembly is arranged, at a second interface. A feature of the sealing element is arranged at the first interface for reducing friction between the sealing element and the ring groove. The second interface is without a liquid lubricant or oil during operation.