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:
Feb. 01, 2011
Filed:
Feb. 05, 2008
Applicants:
Christopher M. Baldwin, Avon, IN (US);
Daniel O'brien, Mooresville, IN (US);
Mark T. Monnett, Cloverdale, IN (US);
Inventors:
Christopher M. Baldwin, Avon, IN (US);
Daniel O'Brien, Mooresville, IN (US);
Mark T. Monnett, Cloverdale, IN (US);
Assignee:
Mallory Sonalert Products, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is an improved audible signaling device with a speaker, a sound chamber, and associated circuitry. The device creates a loud, audible fundamental frequency, and harmonic frequencies that are relatively equal in amplitude to the amplitude of the fundamental frequency.