Electrical transmission or interconnection systems – Personnel safety or limit control features
Patent
1993-07-30
1995-07-18
Pellinen, A. D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
192129R, 192129A, G05B 900
Patent
active
054344573
ABSTRACT:
A foot pedal safety switch and safety circuit for industrial machines which effectively precludes accidental operation of a machine and improper repetitive cycling of a machine. The foot pedal is completely enclosed within a rigid enclosure having an entry door through which an operator's foot is inserted each time the foot pedal switch is actuated. The safety circuit includes one or more limit switches indicating the status of the access panel and triggering a timing circuit which provides a time period within which the foot pedal switch must be contacted to operate the machine. For a second operation of the machine, the operator's foot must be removed from the enclosure allowing the access panel to close. To repeat operation of the machine, the operator then places his foot again in the foot pedal through the access panel. The safety circuit is mounted within the foot pedal switch enclosure to provide a self-contained single-actuation device which can be easily incorporated into existing machinery.
REFERENCES:
patent: 4811193 (1989-03-01), Scott et al.
patent: 5025175 (1991-06-01), Dubois, III
patent: 5168173 (1992-12-01), Windsor
patent: 5235217 (1993-08-01), Kirton
Josephs Harold
Szcesny Ronald W.
Kaplan Jonathan S.
Pellinen A. D.
LandOfFree
Foot pedal safety switch and safety circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Foot pedal safety switch and safety circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foot pedal safety switch and safety circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2419961