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:
Oct. 20, 1987
Filed:
Aug. 16, 1984
Applicant:
Inventors:
Barry Pearlman, Chesterfield, MO (US);
W Kenneth Menke, Glendale, MO (US);
Assignee:
Public Safety Equipment, Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
340 84 ; 318256 ; 318282 ; 340 50 ; 362 35 ;
Abstract
Signal apparatus including an assembly for producing a signal beam and another assembly for sweeping the beam in at least one zone of rotation. A control circuit connected to the sweeping assembly causes it to sweep the signal beam in periodically reversed motion at a substantially constant angular velocity across the zone of rotation between preselected endpoints thereof.