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:
Jan. 08, 1980
Filed:
Sep. 22, 1978
Applicant:
Inventors:
Yoshihiro Fukano, Soka, JP;
Naotake Oneyama, Soka, JP;
Assignee:
Shoketsu Kinzoku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
13762569 ; 13762565 ;
Abstract
In a spool-sleeve type change-over valve, the axial width of the intake passage is reduced relative to that of the discharge passage within a range in which the same cylinder response as attained by intake and discharge passages of the same axial width is retained.