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:
Nov. 02, 2004
Filed:
Mar. 24, 2003
Applicant:
Inventors:
Satoshi Tanaka, Takasago, JP;
Hideaki Emoto, Takasago, JP;
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/112 ;
U.S. Cl.
CPC ...
F16K 3/112 ;
Abstract
In a servo controller , it is confirmed whether or not the voltages from amplifiers G through G are within the range of normal performance in the comparators through after alternating current voltages generated individually in a primary coil and secondary coils and of an LVDT are converted into direct current voltages and output from the amplifiers G though G . When a voltage out of the range of normal performance is confirmed in at least one of the comparators through and a high voltage is output, the servo controller 3 is brought into a stand-by state.