Industry Patents
Patent: 5794881
Gel Tensioning Device
(Click image for PDF of full patent)
| Patent Number: |
5794881 |
| Title: |
Gel Tensioning Device |
| Abstract: |
A gel tensioning device maintains tension on a gel. The gel is wound
between two rollers as the diameters of the rollers change by rolling and
unrolling the gel, the amount of movement between the two rollers also
changes. This difference in movement is absorbed by a spring that biases
the rollers relative to one another. The present invention preferably
applies force to one of the rollers, that one roller connects to a special
spring assembly and through that special spring assembly to the other
roller. The special spring assembly includes a special kind of spring,
which has desirable characteristics but is susceptible to reverse winding.
A roller clutch allows force to be applied to the spring in the winding
direction only and not in the non-winding direction. This prevents damage
to the spring from any reverse winding.
|
| Country of Issue: |
US |
| First Named Inventor: |
Evans |
| Assignee: |
Light & Sound Design |
| Continuation or Divisional of: |
|
| International Classification: |
B65H 23/04 |
| US Classification: |
242/410 |
| Issue Date: |
08-18-1998 |
| Filing Date: |
04-18-1996 |
| Application : |
634658 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
5794881 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
5794881 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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