Automatic door closing device

Details Automatic door closing device Automatic door closing device

1999-01-04

2000-02-08

Redman, Jerry

Movable or removable closures

With means mounting closure for reciprocation

49137, 16 78, E05D 1506

Patent

active

060216077

ABSTRACT:
A door closing device including closing means for urging a door between said first open position and second closed position having a cable mounted in a housing said cable wound about periphery of a reel regulating the speed of movement of said door between the open position and closed position; a reservoir for containing viscous fluid; and a buffer for retarding the speed of movement of said door comprising an impeller immersed in the viscous fluid for use as a brake; whereby the impeller reduces rotational speed of said reel, thus reducing closing speed of said door.

REFERENCES:
patent: 2947534 (1960-08-01), Leimer et al.
patent: 5630249 (1997-05-01), Rebai
patent: 5771636 (1998-06-01), Mathis

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