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. 12, 1976
Filed:
May. 30, 1975
Warren W Antrim, Dayton, OH (US);
Gene P Baynes, Kettering, OH (US);
Thomas C Downs, Tipp City, OH (US);
James E Enghauser, Kettering, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
In a preferred embodiment an apex seal for a rotary combustion engine is disclosed having a hollow, thin wall, tubular, metal core member embedded in an extruded composite metal-carbon matrix. The seal is adapted to slidably engage the slot of the rotor in which it rides, and to sealingly engage the rotor housing against which it is spring and gas pressure biased. The incorporation of the hollow tubular core in the extruded seal permits a reduction in weight with no significant loss in flexural strength or wear resistance. It also provides gas pressure balance, end to end.