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Class Information
Number: 242/581
Name: Winding, tensioning, or guiding > Coil holder or support (e.g., spindle, dispenser, or spool) > With material end retainer > With attractor (e.g., magnet or vacuum)
Description: Subject matter wherein the means to grip includes structure to draw the elongated material toward the coil holder, which structure typically relies on magnetic, molecular, pneumatic, or hydraulic force.

Patents under this class:

Patent Number Title Of Patent Date Issued
7942363 Combined peripheral and central rewinding machine May. 17, 2011
7070142 Clamping device and method Jul. 4, 2006
6779750 Vacuum draw system for a yarn carrier start-up groove Aug. 24, 2004
6723036 Methods and apparatus for folding sheet material Apr. 20, 2004
6695245 Turn-up apparatus and method Feb. 24, 2004
6595458 Method and device for the production of rolls of web material without a winding core Jul. 22, 2003
5797559 Winding arbor having a plurality of air valves for making coreless paper rolls and method for using Aug. 25, 1998
5452496 Vacuum assisted accumulator and process of collecting microfiber Sep. 26, 1995
4852820 Winding method and apparatus Aug. 1, 1989
4804153 Method and apparatus for withdrawing long-sized objects Feb. 14, 1989
4770358 Automatic cutting and winding apparatus for a web-like material such as a film Sep. 13, 1988
4742969 Winding of flexible elongate material May. 10, 1988
4678133 Automatic cutting and winding apparatus for a web-like material such as a film Jul. 7, 1987
4620678 Automatic magnetic tape loading apparatus Nov. 4, 1986
4611638 Automatic take-up motion of loom Sep. 16, 1986
4520970 Cartridge tape drive having vacuum auto-threading Jun. 4, 1985
RE31250 Slot loaded, low profile magnetic tape drive May. 24, 1983
4304365 Electrostatic yarn pick-up Dec. 8, 1981
4243186 Low profile magnetic tape drive with vacuum actuated auto-threading Jan. 6, 1981
4236682 Slot loaded, low profile magnetic tape drive Dec. 2, 1980
4234135 Web inspection apparatus Nov. 18, 1980
4133495 Stretchable material rewinding machine Jan. 9, 1979
4103840 Stretchable material rewinding machine Aug. 1, 1978
3942735 Viewing table Mar. 9, 1976

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