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. 06, 1982
Filed:
Aug. 18, 1980
Applicant:
Inventor:
John T Caruso, Kenmore, NY (US);
Assignee:
Moog Inc., East Aurora, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
13762548 ; 13762564 ; 13762566 ; 13762569 ; 251324 ; 251368 ;
Abstract
A high response servovalve has an improved valve spool slidably mounted within the bore at a sleeve or body. The bearing surfaces on the spool are formed of a relatively soft material. The balance of the surfaces of the spool and the sleeve or body are relatively hard. The soft bearing material tends to absorb contaminants between the bearing lands and the sleeve, is self-healing, and is not prone to weld to the facing sleeve or body surface.