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:
Dec. 05, 1995
Filed:
Feb. 24, 1995
David E Falcon, Oak Creek, WI (US);
Michael J Tresemer, Kent, IL (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A key operated door interlock switch is provided with a cam structure having a first cam and a second cam connected together for rotation about a first axis. A key is shaped to have first and second actuator portions that can be moved into a switch housing to engage first and second lobes of the first and second cams. The first and second actuator portions of the key engage the lobes sequentially to rotate the cam mechanism about the first axis. Rotation of the cam mechanism causes a plunger to move linearly relative to the support structure and operate an electrical switch that permits associated equipment, such as machinery to be actuated. The relative lengths of the first and second actuator portions of the key can be selected to match the arcuate displacement of the lobes of the cams relative to the first axis. This flexibility allows the switch to be customized so that only particular keys can actuate particular switches even though their general appearance is similar.