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:
Oct. 02, 2018
Filed:
Nov. 05, 2015
Yamada Manufacturing Co., Ltd., Kiryu-shi, JP;
Yuji Senbongi, Kiryu, JP;
Takahiro Satou, Kiryu, JP;
YAMADA MANUFACTURING CO., LTD., Kiryu-Shi, Gunma, JP;
Abstract
A first main back pressure supply portand a first subsidiary back pressure supply portare formed in a first sliding contact surfaceof a first side member, the first main back pressure supply portis formed in a groove shape in the first sliding contact surface, and the first subsidiary back pressure supply portcommunicates with the first subsidiary discharge port. A second main back pressure supply portand a second subsidiary back pressure supply portare formed in a second side member, the second main back pressure supply portpasses through the second side member in the axial direction and the second subsidiary back pressure supply portis formed in a groove shape in a second sliding contact surface