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. 30, 1991
Filed:
Mar. 22, 1990
Applicant:
Inventors:
Albert Blatter, Highland, MI (US);
Robert E Davis, Linden, MI (US);
Assignee:
Vickers, Incorporated, Troy, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
137 85 ; 137 82 ; 13762562 ; 335230 ;
Abstract
An electrohydraulic servovalve comprising a torque motor which receives an electrical signal and positions a flapper between a pair of opposed nozzles to control a spool valve and a feedback spring connected to the flapper and to the spool of the spool valve. The flapper is connected to an armature of the torque motor. The joint between the armature and the flapper comprises a one part, heat cured thermosetting adhesive.