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. 03, 1990
Filed:
Feb. 28, 1989
George Obermann, Niles, IL (US);
David Troscinski, Woodridge, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An icemaker for a refrigerator having a motorized cam actuated switch for controlling the water fill valve and motor hold switch. The cam tracks for each switch has an undercut radial step. The switches each have a lower contact blade and upper contact blade with an intermediate blade of longer length. A spacer attached to the upper or lower contact blade maintains a predetermined minimum spacing therebetween. The lower contact blade drops first over the step allowing the upper blade to close against the intermediate blade energizing the water valve and opening the lower contact set. The intermediate blade then drops over the step, closing the lower contact blade set and the spacer holds the upper contact set open for deenergizing the water valve. A similar fast action switch is employed as a motor hold switch during periods when the ice sensing thermostat is open.