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:
Feb. 14, 2017
Filed:
Mar. 04, 2015
Applicant:
Japan Hamworthy & Co., Ltd., Joto-ku, Osaka-shi, Osaka, JP;
Inventors:
Assignee:
JAPAN HAMWORTHY & CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C 9/00 (2006.01); F04C 15/00 (2006.01); F16J 15/48 (2006.01); F04C 2/344 (2006.01); B63H 25/30 (2006.01);
U.S. Cl.
CPC ...
F04C 15/0007 (2013.01); B63H 25/30 (2013.01); F04C 2/344 (2013.01); F16J 15/48 (2013.01);
Abstract
A working oil chamber sealing system of a rotary vane steering gear actuator having a top end face of a respective segment of a housing that holds a segment top face horizontal seal. The segment top face horizontal seal having a sealing face which touches a rear face of a top cover. The top cover rear face holds an upper ring seal, a sealing face of which touches an outer circumferential edge of an upper end face of a rotor and also touches a sealing face inner edge of the segment top face horizontal seal and a sealing face inner edge of an upper horizontal vane seal of a rotor vane, respectively.