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:
Jul. 17, 2007
Filed:
Mar. 16, 2005
Applicants:
Norikazu Ide, Tokyo, JP;
Tomoyuki Fujita, Tokyo, JP;
Hideyasu Ihira, Tokyo, JP;
Inventors:
Assignee:
Kayaba Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spool bore () where a spool () slides, a concave portion () opened to the spool bore () and facing a return portopened to the spool bore (), and a land portion () disposed in an outer periphery of the spool () are provided. A width of the concave portion () and a width of the return port () each are greater than a width of the land portion () and a groove bottom () of the concave portion () is formed to be a flat plane generally in proportion to an axis line of the spool ().