Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1984-07-05
1986-11-04
Pellinen, A. D.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
361190, 361193, 200DIG2, 200DIG36, 307326, 192130, 192131R, H01H 3500
Patent
active
046213007
ABSTRACT:
This safety monitoring system for punch press operators is designed to prevent the operators from being injured by such presses or other factory equipment. Primarily, it consists of a pair of wrist units which are strapped to the wrists of the operators, and which include optical fiber cables and a latching assembly, and the optical fiber cables are used in cooperation with a pair of identical electronic circuits employing LED's, a light sensitive transistor, a pair of other transistors, a zener diode, and a relay, for instantly shutting a punch press on or off.
REFERENCES:
patent: 3700836 (1972-10-01), Rackson
patent: 3784842 (1974-01-01), Kremer
patent: 3805085 (1974-04-01), Andrews
patent: 3947734 (1976-03-01), Fyler
patent: 3953770 (1976-04-01), Hayashi
patent: 4193662 (1980-03-01), Hara
patent: 4195722 (1980-04-01), Anderson et al.
patent: 4280164 (1981-07-01), Kozek
patent: 4306314 (1981-12-01), Griffiths
patent: 4309696 (1982-01-01), Nagai et al.
patent: 4493377 (1985-01-01), Gunther et al.
"Wagner Stops Punch-Press Accidents" by Holtzman American Machinist 2/20/50.
Jennings Derek S.
Pellinen A. D.
LandOfFree
Safety monitoring system for punch press operators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety monitoring system for punch press operators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety monitoring system for punch press operators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-699274