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:
Mar. 26, 1985
Filed:
Jan. 26, 1983
Willie T Grant, Lakewood, CO (US);
Other;
Abstract
Solenoid motor means for operating a multiple blade damper device; said blades being pivotally mounted in a common housing; said housing being constructed to reside in an open ended duct boot that is part of the duct network for the distribution of the heating/cooling medium of a central heating/cooling device. Each of the multiple damper blades is attached to a rotatable means such as a timing pulley or gear; said rotatable means are rotated by a rack having engaging means such as gear teeth; said engaging means are interconnected through a carriage to a plunger common to dual solenoids; said carriage translates linearly with said plunger to provide aforesaid rotation to rotatable means to open or close damper blades in accordance with commands of a temperature control means.