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:
Sep. 04, 2012
Filed:
Nov. 03, 2009
Robert J. Andrews, Jr., Attleboro, MA (US);
Russell P. Brodeur, Franklin, MA (US);
Kevin J. Dropps, Berkley, MA (US);
Robert J. Andrews, Jr., Attleboro, MA (US);
Russell P. Brodeur, Franklin, MA (US);
Kevin J. Dropps, Berkley, MA (US);
Sensata Technologies Massachusetts, Inc., Attleboro, MA (US);
Abstract
A low cost motor starter is shown having a PTC resistorserially connected to a triacand a bias resistor in turn adapted to be connected to the start winding of a single phase motor. A reed relayhaving a sense coilserially connected to the main winding in one preferred embodiment and in parallel with the main and start windings in a second preferred embodiment, is magnetically coupled to reed contacts. Reed contactis connected to a location intermediate the PTC resistorand the triacwhile reed contactis connected to the gate of the triac. A gate signal phase shifting network comprising capacitor C-Ris also connected to reed contactand the gate.