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:
Nov. 20, 1990
Filed:
Apr. 28, 1989
Applicant:
Inventors:
James L Stopa, Old Saybrook, CT (US);
Earl B Hoekman, Roseville, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G08C / ; G02F / ;
U.S. Cl.
CPC ...
340825720 ; 3152 / ; 34082529 ; 3581941 ; 455603 ;
Abstract
An radiant energy transmitter that includes a d.c. to d.c. converter, a d.c. energy storage circuit portion, a triggered radiant energy signaling device, a trigger pulse circuit to initiate operation of the signaling device and an operator adjustable trigger pulse timer circuit portion supplying signals to the trigger pulse circuit at a repetition rate selected by an operator with each signal causing the trigger pulse circuit to provide a trigger pulse to initiate an operation of the signaling device.