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:
Mar. 15, 1977
Filed:
Mar. 27, 1975
Thomas C Roberts, Ridgewood, NJ (US);
Curtiss-Wright Corporation, Wood-Ridge, NJ (US);
Abstract
The sealing grid is for a rotary piston mechanism having a multi-profile rotor forming apex portions, which rotor is supported for planetary rotary movement in a housing cavity. The sealing grid comprises an apex seal assembly carried in each of the apex portions of the rotor, which assembly includes an apex seal blade. Also forming part of the sealing grid are apex seal pins disposed in the opposite side faces of the rotor and at each of the apex portions. The grid additionally includes side gas seal strips carried in each of the opposite side faces of the rotor. One end portion of each side gas seal strip is disposed in abutment against an apex seal blade at one apex portion while the opposite end portion engages the apex seal pin located at an adjacent apex portion. The grid further includes a biasing means for each side gas seal strip for urging the associated side gas seal strip in an endwise direction and into abutment against the apex seal blade associated therewith.