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:
Aug. 07, 2001
Filed:
Aug. 09, 1999
Applicant:
Inventor:
Koichi Futsuhara, Urawa, JP;
Assignee:
The Nippon Signal Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 4/700 ;
U.S. Cl.
CPC ...
H01H 4/700 ;
Abstract
A transformer structured emergency stop switch (,) incorporates a first core member (,) wound with primary and secondary windings, and a second core member (,) which at normal times contacts with the first core member (,) under spring force and in an emergency is separated therefrom by a push button (,). Several transformer structured emergency stop switches (,) are connected in series to make up an emergency stop switch circuit.