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:
Apr. 01, 2014
Filed:
Mar. 13, 2012
Jon C. Brasher, Medina, TN (US);
David M. Geibel, Jackson, TN (US);
William J. Teising, Jackson, TN (US);
Robert A. Elick, Jackson, TN (US);
Bobby Owen Thurmond, Jr., Ripley, TN (US);
Jon C. Brasher, Medina, TN (US);
David M. Geibel, Jackson, TN (US);
William J. Teising, Jackson, TN (US);
Robert A. Elick, Jackson, TN (US);
Bobby Owen Thurmond, Jr., Ripley, TN (US);
ABB Technology AG, Zurich, CH;
Abstract
A selector switch assembly for a load tap changer includes a bevel gear coupled with a motor drive shaft. A shaft assembly is coupled with the bevel gear and a switch is provided for each phase. Each switch includes a helical gear fixed to the shaft assembly, a Geneva pinion gear engaged with the helical gear, a first Geneva gear wheel mounted on a first shaft moved by a first follower of the pinion gear, a first contact arm associated with the first Geneva gear wheel to rotate therewith, a second Geneva gear wheel mounted on a second shaft and moved by a second follower of the pinion gear, and a second contact arm associated with the second Geneva gear wheel so as to rotate therewith. The contact arms include contacts that engage fixed contacts that define tap positions of the load tap changer.