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:
Apr. 28, 1998
Filed:
Oct. 13, 1995
Applicant:
Inventor:
Susumu Watanabe, Hiratsuka, JP;
Assignee:
Nippon Gear Co., Ltd., Kanagawa-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
73168 ;
Abstract
In a valve used in a nuclear power plant, a valve body from which a valve stem projects upwards is connected with a valve drive device for driving the valve stem by a hollow cylinder which is provided concentrically with the valve stem. On the hollow cylinder, strain gauges are attached to detect both torque and thrust, thereby detecting load exactly.