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:
Jul. 08, 2008
Filed:
May. 04, 2005
Applicants:
John T. Fitzer, Hazel Green, AL (US);
Urs Bischof, Raleigh, NC (US);
William Jeffrey Creech, Kenley, NC (US);
Inventors:
John T. Fitzer, Hazel Green, AL (US);
Urs Bischof, Raleigh, NC (US);
William Jeffrey Creech, Kenley, NC (US);
Assignee:
Siemens Power Transmission & Distribution, Inc., Wendell, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for controlling a force applied to a pantograph. A bidirectional snubber and a velocity controller are used to dampen the applied force. Linkages between a shaft and the bidirectional snubber and between the bidirectional snubber and the velocity controller are used to rotationally translate the applied force.