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US 2003/0228964 A1Published application
Apparatus and method for braking and controlling tension in a web
OwnerScott I. Bibainventor
Life of this patent
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Abstract
A web brake and tension controller is provided comprising a substantially U-shaped mechanical arm having a first end and a second end, where the second end forms a cross bar. The web brake and tension controller may also have a force applying means. The force applying means may be a weight, or other biasing means, such as a spring. The cross bar may at least slightly V-shaped. A guide bar may be attached to the cross bar.
Claims29
A web brake and tension controller comprising:
- a means for supplying a web;
- a substantially U-shaped mechanical arm having a first end and a second end, the second end forming a cross bar extending across the web and capable of engaging the web;
- and
- a force applying means for bringing said cross bar into engagement with the web.
1 more element
A method of controlling the tension in a polymeric web comprising:
- moving the web from a supply roll to a take-up reel;
- interposing a cross bar in the web path between the supply roll and the take-up reel;
- and
- intermittently applying a downward force on the supply roll.
1 more element
Dependencies are inferred from the claim text.