Curtain rolling buffer apparatus

Details Curtain rolling buffer apparatus Curtain rolling buffer apparatus

2005-02-28

2008-12-09

Mitchell, Katherine W (Department: 3634)

Flexible or portable closure, partition, or panel

Roll type

With brake or stop

C160S291000, C160S305000, C188S296000, C188S307000

Reexamination Certificate

active

07461683

ABSTRACT:
An improved curtain rolling buffer apparatus mainly includes a rolling means mounted to a left end of the track to allow the curtain hanging below the track to be extended by pulling once and retracted by pulling another time. A buffer means is located on the right end of the track and has a bushing housing a spring. When to extend or retract the curtain, the spring is turned clockwise and extended outwards, and runs idle outside an axle, and the elastic force of the spring is small than the pressure of lube oil so that the curtain is easier to be extended. On the contrary, when the spring is turned counterclockwise, it is tightened and drives the bushing to rotate together.

REFERENCES:
patent: 3179161 (1965-04-01), Johnson
patent: 4432254 (1984-02-01), Schultz
patent: 4487245 (1984-12-01), Shinohara et al.
patent: 4535829 (1985-08-01), Fukuchi
patent: 4751953 (1988-06-01), Appel et al.
patent: 5934354 (1999-08-01), Price et al.
patent: 6155328 (2000-12-01), Welfonder
patent: 6158563 (2000-12-01), Welfonder et al.
patent: 6443210 (2002-09-01), Welfonder
patent: 6591890 (2003-07-01), Grubb et al.
patent: 6666252 (2003-12-01), Welfonder
patent: 6729447 (2004-05-01), Takahashi
patent: 6799738 (2004-10-01), Sauder et al.
patent: 6854505 (2005-02-01), Grubb et al.
patent: 6938667 (2005-09-01), Sugiyama et al.
patent: 7360736 (2008-04-01), Zangirolami
patent: 2004/0099495 (2004-05-01), Hayashi

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