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:
Jun. 07, 1977
Filed:
May. 16, 1975
Hiroshi Takeuchi, Tokyo, JA;
Toshitugu Ishizawa, Higashi-Murayama, JA;
Tetuyuki Yamano, Kodaira, JA;
Ko Chiba, Kashiwazaki, JA;
Daisaku Kobayashi, Kashiwazaki, JA;
Nissan Motor Co., Ltd., Yokohama, JA;
Riken Piston Ring Kogyo Kabushiki Kaisha, Tokyo, JA;
Abstract
A rotary piston internal combustion engine has a rotor journalled on an eccentric portion of an engine shaft. A sealing arrangement comprises a first radially extending annular face connected to the engine shaft, a disc connected to the rotor and having a second radially extending annular face, and a sealing ring disposed between the first and second faces. A spring biases the sealing ring to maintain sealing contact of the sealing ring with one of the first and second faces. An O-ring is disposed between the sealing ring and that one of the rotor and engine shaft which is in rotatable unison with the other one of the first and second faces.