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:
Oct. 03, 2023
Filed:
Nov. 16, 2022
Applicant:
Liquidpiston, Inc., Bloomfield, CT (US);
Inventors:
Nikolay Shkolnik, West Hartford, CT (US);
Alexander Shkolnik, Wilmington, MA (US);
Assignee:
LiquidPiston, Inc., Bloomfiled, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/08 (2006.01); F16J 9/20 (2006.01); F16J 9/14 (2006.01);
U.S. Cl.
CPC ...
F16J 9/08 (2013.01); F16J 9/14 (2013.01); F16J 9/20 (2013.01);
Abstract
Embodiments of a combination piston and piston ring to reduce the volume of a crevice defined between the circumferential wall of a cylinder and a portion of the outer wall of a piston within the cylinder, the portion extending down from the top of the piston. The combination piston and piston ring is configured such that pressurized fluid within the cylinder reliably urges a radial face of the piston ring to sealingly engage the circumferential wall of the cylinder, even as the piston reciprocates within the cylinder.