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. 27, 2011
Filed:
May. 22, 2007
Gerald W. Hill, Palos Park, IL (US);
Brian J. Truesdale, Wauconda, IL (US);
Slawomir P. Kielian, Des Plaines, IL (US);
Gerald W. Hill, Palos Park, IL (US);
Brian J. Truesdale, Wauconda, IL (US);
Slawomir P. Kielian, Des Plaines, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A self-diagnostic acoustic wave touch actuated switch assembly includes a substrate having an acoustic wave cavity, a transducer operatively connected to the acoustic wave cavity, a processing unit, and at least one light emitting member operatively connected to the processing unit. The transducer is configured to generate a trapped acoustic wave within the acoustic wave cavity. The processing unit is operatively connected to one or both of the acoustic wave cavity and/or the transducer. The processing unit may be configured to activate the at least one light emitting member when the processing unit detects one or both of a switch malfunction and/or a potential switch malfunction.