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:
Jun. 26, 1979
Filed:
Jun. 16, 1977
Applicant:
Inventor:
Ronald K Getman, Cedar Rapids, IA (US);
Assignee:
Commercial Shearing, Inc., Youngstown, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137312 ; 13762548 ; 251D / ;
Abstract
The invention relates to a high pressure control valve of the spool type. The valve contains a series of fluid passageways which drain off the high pressure fluid before it reaches the sealed area of the spool thus allowing the spool to be shifted with a minimum of force even though under high internal fluid pressure. The invention thus increases the life of elastomer seals used in high pressure fluid control valves.