Door or protective hood locking control system as a safety devic

Details Door or protective hood locking control system as a safety devic Door or protective hood locking control system as a safety devic

1992-02-25

1995-03-07

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Personnel safety or limit control features

307112, 307125, 318626, 70174, 70277, H02H 708

Patent

active

053961226

ABSTRACT:
For a door or protective hood locking control system of a safety device with normal or excessive safety for machines, particularly machines carrying out rotational motions, a stoppage monitoring guard is disposed in the current circuit for the door locking mechanism that is operated by push-buttons. This stoppage monitoring guard is taken from a redundant, rotational motion signal evaluating system of the target installation of a rotational motion monitoring device, which is already present, and operates redundantly to monitor each axle with two rotational motion sensors so that a dedicated rotational motion sensing system can be dispensed with for the redundant operation of the door locking system.

REFERENCES:
patent: 3913413 (1975-10-01), Walker
patent: 4105903 (1978-08-01), Shaw et al.
patent: 4171735 (1979-10-01), Zuhlke et al.
patent: 4282963 (1981-08-01), Kafura et al.
patent: 4434390 (1984-02-01), Elms
patent: 4453117 (1984-06-01), Elms et al.
patent: 4456867 (1984-06-01), Mallick, Jr. et al.
patent: 4467260 (1984-08-01), Mallick, Jr. et al.
patent: 4476423 (1984-10-01), Mallick, Jr. et al.
patent: 4717984 (1988-01-01), Henry et al.
German article "KEM" Thema des Monats: Schalter und Relais, Sicherheitsrelais-Bautsteine bieten verdrahtungssparende Kompaktlosungen, Erst bei Storung schalten, Jan. 1989, pp. 55-56.

Affiliated with

Also associated with

Rating

Door or protective hood locking control system as a safety devic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Door or protective hood locking control system as a safety devic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door or protective hood locking control system as a safety devic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1408339