Apparatus for controlling the operation of a door

Details Apparatus for controlling the operation of a door Apparatus for controlling the operation of a door

1981-03-19

1983-08-30

Moore, Richard E.

Closure fasteners

Bolts

Sliding

2922515, E05B 4700

Patent

active

044013469

ABSTRACT:
An apparatus for controlling the operation of a door provided with a door closer comprises a body of ferromagnetic material mounted on a portion of a building adjacent the door, an electromagnet mounted on the door (the positions of the electromagnet and body may be reversed), a power supply, an actuator and a timer which connects the electromagnet to the power supply upon actuation by the actuator and disconnects the electromagnet from the power supply after a predetermined interval, thereby allowing the door closer to close the door.

REFERENCES:
patent: 2642504 (1953-06-01), Hascall
patent: 2874960 (1959-02-01), Durbin et al.
patent: 3204154 (1965-08-01), Crandell
patent: 3751086 (1973-08-01), Geringer
patent: 3796451 (1974-03-01), Schultz
patent: 4134608 (1979-01-01), Pool
patent: 4155576 (1979-05-01), Kennon

Affiliated with

Also associated with

Rating

Apparatus for controlling the operation of a door does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for controlling the operation of a door, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the operation of a door will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-903444