Multi-end strand predetermined tension controller

Details Multi-end strand predetermined tension controller Multi-end strand predetermined tension controller

2006-07-11

2006-07-11

Matecki, Kathy (Department: 3654)

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

C226S039000, C226S110000, C242S418100

Reexamination Certificate

active

07073695

ABSTRACT:
A multi-end strand tension controller has an overfeed roll and an underfeed roll with strand engagement surfaces. Depending on the outgoing tension, the strand positioner selectively apply the strand against one of the underfeed rollers to adjust the tension and the output of the tension controller. The underfeed roller is fed at a speed slower than the speed of the strand while the overfeed roller is fed at a speed greater than the speed of the feed of the strand. Multiple strands forming the web can be provided utilizing a controller and different predetermined tensions may be applied to each of the individual strands based upon loading of individual strand positioners.

REFERENCES:
patent: 4162607 (1979-07-01), Spivey
patent: 4778118 (1988-10-01), Niederer
patent: 4858839 (1989-08-01), Niederer
patent: 5928579 (1999-07-01), Spahlinger et al.

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