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. 21, 1976
Filed:
Jun. 10, 1974
Applicant:
Inventors:
Kazuhiro Kawamura, Toyota, JA;
Kunihiko Mizutani, Toyota, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ;
U.S. Cl.
CPC ...
418 91 ; 418142 ;
Abstract
An oil seal protector for rotary engines is provided to prevent deleterious combustion gases from damaging the oil sealing assemblies provided on each side of the engine rotor. The sealing assemblies include an O-ring and the protective device comprises annular grooves which extend completely about the sealing assembly on each side of the rotor and which are located radially outwardly from such sealing assemblies. A seal ring is fitted within each of the annular grooves of the protective device and spring means are provided for urging the ring against the sides of the engine housing.