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:
Jan. 23, 1979
Filed:
Jun. 06, 1977
Applicant:
Inventor:
James H Cullen, Chicago, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
340 53 ; 340 63 ; 340670 ; 180110 ;
Abstract
The device includes a speedometer in an automobile, having a speed scale and a pointer; the speedometer has photo-electric means and a shield on the pointer to interrupt the light rays in the photo-electric means, above a predetermined speed, for effecting warning signals or inhibiting excess speed; the PE arrangement eliminates mechanical contacts in the speedometer; the warning signals include external warning light viewable by others than those in the automobile such as other drivers and the traffic police, and includes a shifting down of automatic trasmission, for reducing speed; other forms of the invention are adapted to industrial installations.