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:
Nov. 29, 1977
Filed:
Oct. 14, 1976
George H Woodier, Ringwood, NJ (US);
Robert E Mount, Mendham, NJ (US);
Curtiss-Wright Corporation, Wood-Ridge, NJ (US);
Abstract
The sealing grid system for a rotary piston mechanism of the Wankel type comprises apex seal assemblies and a plurality of seal strips slidably disposed in recesses in at least one face of the rotary piston. Each of the recesses are formed at the juncture of the peripheral surface of the rotary piston and the surface of one of the rotary piston faces and extend to communicate with next adjacent apex seal slots. A groove is formed in the bottom of each of the recesses to receive a biasing member, V-shaped in cross-section, which functions to both urge the associated seal strip outwardly of the recess and to seal the interstices between the seal strip and its recess. Each of the seal strips is dimensioned in length to abut the next adjacent apex seal blades.