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. 09, 2001
Filed:
Jul. 27, 2000
Applicant:
Inventors:
Hideki Kakamu, Aichi-ken, JP;
Toshiya Mori, Aichi-ken, JP;
Assignee:
Aoyama Seisakusho Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/106 ;
U.S. Cl.
CPC ...
F16K 1/106 ;
Abstract
The invention relates to a spool valve having an inner hybrid construction and a method of manufacturing the same, and the spool valve comprising sliding surface portions and grooves, the sliding surface portions and the grooves being arranged alternately adjacent to each other in a longitudinal direction of the spool valve, the sliding surface portions being formed by sliding members, which are provided on a base portion of a synthetic resin to be fitted thereon.