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. 17, 2015
Filed:
Mar. 28, 2013
Applicant:
Idem Safety Switches Limited, Wigan, GB;
Inventors:
Medi Mohtasham, Manchester, GB;
Hamed Faridfar, Manchester, GB;
Vincent Crolla, Warrington, GB;
Timothy Jennings, Manchester, GB;
Assignee:
Idem Safety Switches Limited, , GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/327 (2006.01); H01H 9/22 (2006.01);
U.S. Cl.
CPC ...
G01R 31/327 (2013.01); H01H 9/22 (2013.01); H01H 2300/052 (2013.01);
Abstract
A testing system to test safety interlock switches to ensure that they are operating normally comprising a test loop circuitwhich connects in series a plurality of safety switches, the test loop circuitis adapted to open the switchesoutputs if broken, the testing system further comprising a diagnostic meanswhich checks each switch to ensure it is operating normally when the test loop circuitis broken. The test loop circuitmay be broken when a single switchis activated to open its safety output.