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. 20, 2019
Filed:
May. 18, 2018
Applicant:
Mars International, Inc., Piscataway, NJ (US);
Inventors:
Geoffrey Engelstein, Bridgewater, NJ (US);
David Salgueiro, Cranford, NJ (US);
Mohamed Abdelhafez, Cranford, NJ (US);
Ralph Giffone, Bloomfield, NJ (US);
Andrew Lindsay, Somerset, NJ (US);
Assignee:
Mars International, Inc., Piscataway, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/02 (2006.01); G01J 1/04 (2006.01); G01V 8/12 (2006.01); E05F 15/73 (2015.01); E05F 15/60 (2015.01);
U.S. Cl.
CPC ...
G01J 1/0295 (2013.01); E05F 15/73 (2015.01); G01J 1/0238 (2013.01); G01J 1/0411 (2013.01); G01V 8/12 (2013.01); E05F 15/60 (2015.01);
Abstract
An optical safety beam method and system. A transmitter periodically sends bursts of light pulses with varying strengths. The receiver analyzes the received light pulses to automatically adjust its sensitivity and to detect when the light path is partially obstructed even when there are stray light pulse reflections that reach the receiver.