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:
Dec. 01, 1992
Filed:
Sep. 09, 1991
Applicant:
Inventors:
John G Hinant, Lynchburg, VA (US);
Harry Honig, Lynchburg, VA (US);
Albert J Servas, Lynchburg, VA (US);
Assignee:
B&W Nuclear Service Company, Lynchburg, VA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
73161 ; 73168 ;
Abstract
This invention pertains to a method and apparatus for testing the spring pack of a motor operated valve. It incorporates a test stand into which the spring pack is inserted. A horizontal reference plane is attached to the spring pack afterwhich the spring pack is compressed with the vertical displacement of this reference plane being measured. Also measured is the force applied to the spring pack such that afterwards, a comparison of the vertical displacement versus the load applied can be made.