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Class Information
Number: 226/175
Name: Advancing material of indeterminate length > By orbitally traveling material-engaging surface(s) > With control or adjustment means > To vary diameter of roll
Description: Device wherein the regulating means radially expands or contracts a roll*.










Patents under this class:

Patent Number Title Of Patent Date Issued
6902091 Method and apparatus for feeding slider-zipper tape to application station Jun. 7, 2005
6732898 Method and apparatus for feeding slider-zipper assemblies May. 11, 2004
6321966 Device for automatically catching a torn material web running through a rotary printing machine Nov. 27, 2001
5947161 Pinch roll weft feeder with expandable transport roll Sep. 7, 1999
5906307 Folding apparatus superstructure with replaceable mantlings for velocity adjustment May. 25, 1999
5310106 Apparatus for obtaining differential tangential variable speeds at different points of a deformable film May. 10, 1994
5193800 Apparatus for conveying paper in a printer Mar. 16, 1993
5098082 Sprung-wheel Mar. 24, 1992
5050500 Sheet transfer web Sep. 24, 1991
5026045 Sheet-guiding drum assembly for sheet-fed rotary printing machines Jun. 25, 1991
5000364 Apparatus for obtaining differential tangential variable speeds at different points of a deformable film Mar. 19, 1991
4792076 Web transporting apparatus Dec. 20, 1988
4721285 Cable drive system including apparatus for controlling normal force applied to cable Jan. 26, 1988
4704842 Method and appartus for handling reclosable wrapper sheet material Nov. 10, 1987
4642084 Plastic bag making machine Feb. 10, 1987
4609367 Bag making machine and method Sep. 2, 1986
4504022 Thread feed mechanism and method for textile machines Mar. 12, 1985
4466576 Metering drum for filamentary material Aug. 21, 1984
4448554 Sheet feeding apparatus having an expansible periphery May. 15, 1984
4289489 Self-adjusting variable speed idler pulley Sep. 15, 1981
4180839 Information reproducing apparatus Dec. 25, 1979
4158429 Apparatus for feeding elongate sheet materials Jun. 19, 1979
4055288 Front drive cartridge-tape player system with fast forward and reverse modes Oct. 25, 1977











 
 
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