Optical communications – Remote control – In industrial environment or hazardous environmrnt
Reexamination Certificate
2005-12-05
2009-06-02
Wang, Quan-Zhen (Department: 2613)
Optical communications
Remote control
In industrial environment or hazardous environmrnt
Reexamination Certificate
active
07542680
ABSTRACT:
A control system is used for remotely operating an apparatus powered by a main power source. The control system includes an auxiliary power source to provide power to the apparatus upon a loss of power to the main power source, and first and second light-emitting sources positioned remote of the apparatus. A first photoelectric sensor is positioned proximate the apparatus and interconnected with the apparatus and the auxiliary power source, wherein upon a loss of power to the main power source, the first photoelectric sensor receives light from the first light-emitting source and the first photoelectric sensor enables power to flow from the auxiliary power source to the apparatus. At least one second photoelectric sensor is positioned proximate the apparatus and interconnected with a component of the apparatus and the auxiliary power source, wherein upon a loss of power to the main power source, the second photoelectric sensor receives light from the second light-emitting source and enables power to flow from the auxiliary power source to the respective component to activate movement of the component.
REFERENCES:
patent: 3735352 (1973-05-01), Pease
patent: 4294682 (1981-10-01), Deczky
patent: 4481165 (1984-11-01), Anderson et al.
patent: 4576100 (1986-03-01), Zanin
patent: 4635802 (1987-01-01), Hylton
patent: 4730743 (1988-03-01), Rosman
patent: 4836111 (1989-06-01), Kaufmann
patent: 4987834 (1991-01-01), Peck, Jr. et al.
patent: 5079640 (1992-01-01), Gfrerer
patent: 5402257 (1995-03-01), Hasselmann et al.
patent: 7256705 (2007-08-01), Kagermeier et al.
patent: 2004/0026349 (2004-02-01), Colgate et al.
MHE Technologies, Inc.
Porter Wright Morris & Arthur LLP
Wang Quan-Zhen
LandOfFree
Laser control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144345