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:
Aug. 16, 1983
Filed:
May. 05, 1981
James A Neese, Flora, IL (US);
Sparton Corporation, Jackson, MI (US);
Abstract
An electronic alarm particularly designed to indicate reverse movement of vehicles. The alarm utilizes a synthetic plastic housing having a cavity defined therein which intersects the housing at an exterior surface. A sound producing diaphragm, the motor for vibrating the diaphragm, and the electronic control circuit, are all mounted upon a diaphragm mounting assembly which is received within the housing cavity forming a cavity cover. The diaphragm is located in opposed relationship to a cavity sound reflective base, and an air passage surrounding the diaphragm mounting assembly transmits sound vibrations through the cavity, and through ports defined in the diaphragm assembly at the cavity opening.