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:
Sep. 12, 1989
Filed:
Sep. 26, 1988
Applicant:
Inventors:
Steven J Bethel, Oakfield, WI (US);
Robert J Baumhardt, Eden, WI (US);
Assignee:
Brunswick Corporation, Skokie, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 92177 ;
Abstract
In a two-cycle internal combustion engine (10), the piston (20) has an outer peripheral oval shape (58) with a minor axis (62) offset from the centerline (54) of the wrist pin (26) towards a line (56) through the intake and exhaust ports (16 and 18). The outer peripheral shape of the piston also has increasing ovality, from at least the wrist pin (26) upwardly to at least the piston rings (22, 24).
Bethel, Steven. (1989). Two-cycle engine with offset piston ovality (U.S. Patent No. 4864986). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4864986
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile