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:
Jan. 31, 1984
Filed:
Apr. 30, 1982
Applicant:
Inventors:
Kenneth E Deane, Beech Grove, IN (US);
Robert S Coulter, Plainfield, IN (US);
Assignee:
Emhart Industries, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200288 ;
Abstract
An improvement is presented for a timing mechanism wherein the closing of a particular circuit results in a high electrical current surge. The rapidity of the circuit closure (made necessary by the current surge) results in contact bounce. A fast drop of a cam follower is provided by a cam having a substantially flat outer periphery and a face which has a steep drop with a gentle curvature. Upon dropping the cam follower, electrical contact arms are engaged which include a coil spring damper to dissipate kinetic energy encountered during contact closure, thereby preventing the contacts from bouncing.