Roll-up closure

Details Roll-up closure Roll-up closure

2011-02-15

2011-02-15

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Roll type

With rotating means

C160S304100, C081S058200, C081S486000

Reexamination Certificate

active

07886805

ABSTRACT:
A spring tensioning unit for a roll-up closure, the closure having a pair of end plates and an axle rotatably mounted on the endplates. A drum for carrying a closure is rotatably mounted on the axle, and a tensioning coil spring is mounted on the axle and connected between the axle and the drum. The tensioning unit has a ratchet wheel fixedly mounted on the axle adjacent one end plate, the wheel having spaced apart teeth. A stop member is slidably mounted on the one end plate with a stop tab cooperating with the teeth on the wheel to stop rotation of the wheel in a direction reducing tension on the spring. A lever is mounted between the wheel and the end plate, the lever having a lever tab for cooperating with the wheel, the lever movable on the axle to position the lever tab against a tooth and to then rotate the tooth, and the axle, in a direction to increase tension on the spring.

REFERENCES:
patent: 3651719 (1972-03-01), Wessel
patent: 3979977 (1976-09-01), Dorma
patent: 4532834 (1985-08-01), Hartman
patent: 5253693 (1993-10-01), Marlatt et al.
patent: 5605079 (1997-02-01), Way
patent: 5799716 (1998-09-01), Yamaguchi et al.
patent: 6155327 (2000-12-01), Wells et al.
patent: 6283193 (2001-09-01), Finch et al.
patent: 6527037 (2003-03-01), Daus et al.
patent: 6896027 (2005-05-01), Crouch
patent: 6907964 (2005-06-01), Savard
patent: 2009/0266499 (2009-10-01), Svenson

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