Door closer

Details Door closer Door closer

1976-11-24

1978-04-11

Feldbaum, Ronald

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Pneumatic

16 44, 16 69, E05F 300

Patent

active

040830802

ABSTRACT:
A device for controlling the movement of a door has a pinion rotatably connected to the door, a rack meshingly engaging with the pinion and connected to a spring device for storing a force therein when the door is moved from its neutral position, and an engaging member resiliently engaging with the rack to restrain the movement of the door when the door is moved a predetermined amount from the neutral position.

REFERENCES:
patent: 1003652 (1911-09-01), Regan
patent: 3042957 (1962-07-01), Mussel et al.
patent: 3468062 (1969-09-01), Custer

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