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, 1978
Filed:
Sep. 28, 1977
Michael K Brown, Canton, MI (US);
Kyriakos Christou, Livonia, MI (US);
David E Lundquist, Birmingham, MI (US);
Earl P Maidment, Royal Oak, MI (US);
Ronald G Shell, Dearborn Heights, MI (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
A microphone is provided for converting the impact force of a moving charged droplet into a corresponding electrical signal. A vertical support member supports a diaphragm in the path of the moving droplet. The diaphragm flexes or vibrates in response to a group of impinging droplets. A bimorph piezo-electric element is in contact with the diaphragm to move therewith and is fixedly secured at its opposite end to an adjacent housing member. The bimorph generates an electrical signal in response to bending stresses created when the bimorph is bent.