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. 08, 1993
Filed:
Aug. 23, 1991
Malcolm L Shannon, Jr, Englewood, CO (US);
James W Heller, Englewood, CO (US);
Other;
Abstract
An audible turn signal canister unit for automobiles incorporates an audible alarm in the form of a unitary, self-contained module which can be plugged into the existing socket in the automobile in place of a standard flasher unit. The alarm is a pure tone in the mid-speech frequency range (e.g. 1000 to 2500 Hz) in order to be more readily heard over background noise or by hearing impaired individuals. Optionally, the unit can be provided with a time delay circuit in the form of an electronic counter that is reset each time that the turn signal switch is turned on or closed in order to establish the beginning count for the activation of the alarm a predetermined time interval after the turn signal unit is activated.