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Class Information
Number: 242/420.3
Name: Winding, tensioning, or guiding > Tension control or brake > Supply controlled > Supply coil drive control > Peripheral drive > Belt > Slackness sensor
Description: Subject matter wherein the drive member is associated with a detector responsive to the degree of gravitational or similar sag in the material being unwound from the delivery coil, which detector is a material stress information input component of the tension regulating system.

Patents under this class:

Patent Number Title Of Patent Date Issued
7458538 Unwinding device for reels of web material with dual drive mechanism and relative unwinding method Dec. 2, 2008
7067833 Device for wrapping bodies, in particular bales of harvested material Jun. 27, 2006
6588695 Method and device for unwinding elongated stock Jul. 8, 2003
6328245 Apparatus for dispensing individually predetermined lengths of a web material Dec. 11, 2001
5709352 Zero tension web unwinder apparatus and method Jan. 20, 1998
5704603 Cloth spreading machine having improved cloth feed control and guide Jan. 6, 1998
5651511 Roll support and feed apparatus Jul. 29, 1997
5617134 Machine for manipulating and working on web material Apr. 1, 1997
5505401 Machine for manipulating web material Apr. 9, 1996
5472153 Roll support and feed apparatus Dec. 5, 1995
5344089 Roll support and feed apparatus Sep. 6, 1994
5282583 Automatic roll-shifting roll stand Feb. 1, 1994
5156350 Roll support and feed apparatus Oct. 20, 1992
5000394 Roll support and feed apparatus Mar. 19, 1991
4923138 Turntable for motorized delivery of coiled stock May. 8, 1990
4893763 Roll support and feed apparatus Jan. 16, 1990
4838498 Web tensioning system Jun. 13, 1989
4729519 Web handling apparatus Mar. 8, 1988
4729522 Web handling apparatus Mar. 8, 1988
4676447 Web unwind-splicer apparatus Jun. 30, 1987
4555070 Method and apparatus for unwinding and splicing successive rolls Nov. 26, 1985
4278213 Control arrangement for a roll carrier Jul. 14, 1981
4173314 Continuous web supply apparatus Nov. 6, 1979
4103840 Stretchable material rewinding machine Aug. 1, 1978

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