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:
Jun. 12, 2001
Filed:
Feb. 14, 2000
Applicant:
Inventors:
Richard Patten Bishop, Fairfax Station, VA (US);
Clark Davis Boyd, Hampton, VA (US);
Assignee:
Face International Corp., Norfolk, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/1107 ;
U.S. Cl.
CPC ...
H01L 4/1107 ;
Abstract
A circuit including a transformer, preferably a laminated piezoelectric transducer, in combination with a positive feedback amplifier circuit, capable of serving: 1) to produce either an audible or ultrasonic signal; or 2) as an energy source capable of driving an auxiliary high voltage device with an initial and continuing low voltage source such as a battery.