Patent ID: 6021607
Filing Date: 2000-02-08
Classification: E05D,E05F,E05Y,Y10T

Abstract:
A door closing device comprising:a) a sliding door mounted for lateral movement between a first closed position and a second open position;b) a housing fixed securely to said sliding door;c) a cable having one end fixed securely to a frame containing said sliding door and the other end of said cable fixed securely to a rotating reel contained in said housing, said cable wound about periphery of said reel;d) a biasing means fixed securely to said reel for biasing in one rotational direction, said cable being unwound against the biasing force of said biasing means; ande) a braking means comprised of an impeller immersed in a viscous fluid, contained in a liquid tight chamber within said housing, said impeller coupled to said reel by a connecting means allowing said cable to be unwound from reel without rotating said impeller, said connecting means engaging said impeller when said cable is wound about said reel whereby said impeller reduces rotational speed of said reel, thus reducing closing speed of said sliding door.