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. 03, 2015
Filed:
Apr. 28, 2011
Applicant:
David D. Miller, Kitchener, CA;
Inventor:
David D. Miller, Kitchener, CA;
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 5/00 (2006.01); H01H 31/00 (2006.01); H01H 1/22 (2006.01); H01H 1/42 (2006.01); H01H 1/44 (2006.01); H01H 31/28 (2006.01);
U.S. Cl.
CPC ...
H01H 31/003 (2013.01); H01H 1/42 (2013.01); H01H 1/44 (2013.01); H01H 31/28 (2013.01); H01H 2001/223 (2013.01);
Abstract
A scalable earthing switch that incorporates a torsion spring to effect rapid closure of the switch. The torsion spring is supported coaxially about a rotatable shaft on which contact blades are mounted resulting in compact design. The blade contacts are separated axially along the length of the shaft by one or more spacers. By using difference size spacers the distance between adjacent blade contacts can be changed and, thus, the earthing switch can be easily scaled for different applications. A latching (detent) mechanism is provided for latching the switch in an open position.