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. 28, 1989
Filed:
Oct. 29, 1987
John G Cummings, Cary, IL (US);
Indak Manufacturing Corp., Northbrook, IL (US);
Abstract
The disclosed pushbutton operated automotive air control unit incorporates a unique snap-action electrical switch in which the movable contactor has a combination of sliding and rocking movement. The contactor is rockably supported on a fulcrum member which is movably mounted on the slidable carriage. The fulcrum member includes a locating projection, loosely received in a slot formed in the contactor. A coil spring is interposed between the carriage and the fulcrum member for biasing the contactor toward a first fixed contact. There is also a second fixed contact having contactor rocking lugs for slidably engaging the contactor, as the carriage is moved between first and second positions. In the first position, the lugs engage a portion of the contactor which is on the remote side of the fulcrum member from the first fixed contact, whereby the contactor is rocked into electrical engagement with the first fixed contact. The movement of the carriage to its second position causes movement of the contactor relative to the lugs until the fulcrum member passes the lugs whereby the contactor is abruptly rocked out of engagement with the first fixed contact, thus affording a snap action.