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:
Jan. 06, 2015
Filed:
Feb. 22, 2012
Applicants:
Hans-erik Pfitzer, Chesterfield, VA (US);
Martin William Guy, Chester, VA (US);
Inventors:
Hans-Erik Pfitzer, Chesterfield, VA (US);
Martin William Guy, Chester, VA (US);
Assignee:
Thomas & Betts International, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
H02H 9/041 (2013.01);
Abstract
A surge protective device is disclosed that may include a comparator to determine when a line voltage of a line is above a threshold. The device may include a switch to couple a clamping device to the line voltage when the comparator determines the line voltage is above a threshold, wherein the clamping device shunts current from the line. The switch may include a silicon-controlled rectifier (SCR) or a thyristor and the clamping device may include a selenium surge suppression device.