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Class Information
Number: 242/149
Name: Winding, tensioning, or guiding > Strand tensioning device > Clamp
Description: Tension devices in which a member thereof is held in frictional engagement with the cordage material employed, as thread, to regulate the tension of the same. Generally two cooperating members are provided, between which the material to be tensioned is passed.

Sub-classes under this class:

Class Number Class Name Patents
242/152.1 Ball 30
242/150R Disk type 70
242/151 Roller 25

Patents under this class:
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Patent Number Title Of Patent Date Issued
8581157 Band heater systems and assembly methods Nov. 12, 2013
8302894 External cover for a spool of thread to prevent thread from freely coming off as the spool is being used Nov. 6, 2012
8123155 Fence wire stretching device Feb. 28, 2012
7806358 Yarn tension control device Oct. 5, 2010
7325766 Automatic bobbin winder system Feb. 5, 2008
7044416 Tensioning board for slit metal rewinding May. 16, 2006
6755366 Device for direct insertion of yarn in automatic winder Jun. 29, 2004
6691744 Actuator and thread brake comprising an actuator Feb. 17, 2004
6505653 Device and method for variably braking a running yard Jan. 14, 2003
6283399 Yarn tension device Sep. 4, 2001
6119733 Controllable weft thread presenting and clamping apparatus including an actuated clamp element Sep. 19, 2000
5706868 Yarn brake assembly having a guide element for bypassing a yarn brake during threading Jan. 13, 1998
5678779 Yarn feeding device with self-adjusting braking mechanism Oct. 21, 1997
5639043 Despooled filament tension control device Jun. 17, 1997
5560557 Yarn brake having an axially vibrative bearing Oct. 1, 1996
5517738 Thread tensioner May. 21, 1996
5492286 Thread brake Feb. 20, 1996
5487415 Weft feeder with rethreading and braking devices Jan. 30, 1996
5450787 Twine clamp for round baler twine wrapping apparatus Sep. 19, 1995
5368244 Thread brake Nov. 29, 1994
5363883 Thread braking device having magnetically driven spring braking members Nov. 15, 1994
5318630 System for insulating wire including a wire tensioning device Jun. 7, 1994
5305966 Device for the differential braking of traveling threads, wires or the like Apr. 26, 1994
5301887 Means for controlling the travel of a yarn in a textile machine Apr. 12, 1994
5299517 Thread tension adjusting apparatus for a sewing machine Apr. 5, 1994
5244164 Yarn brake having an electromagnetically operated brake lamella Sep. 14, 1993
5215006 Twine clamp for round baler twine wrapping apparatus Jun. 1, 1993
5188218 Method and apparatus for installation of large conveyor belts Feb. 23, 1993
5186114 Thread tension adjusting apparatus for a sewing machine Feb. 16, 1993
5179980 Weft yarn brake with logic circuit control Jan. 19, 1993
5050816 Strand tension controller Sep. 24, 1991
5023739 Tape cassette with a trapping layer having a corrosiveness which is equal to or higher than that of the magnetic recording layer on the tape Jun. 11, 1991
4991793 Optical cable payoff system Feb. 12, 1991
4928463 Yarn brake mechanism for a two-for-one textile yarn twisting machine spindle assembly May. 29, 1990
4884763 Thread signal emitter Dec. 5, 1989
4880173 Wire supply method and apparatus Nov. 14, 1989
4824043 Yarn tensioning device Apr. 25, 1989
4785855 Weft yarn store for looms having a braking device Nov. 22, 1988
4782653 Device for displacing a tenser in a two-for-one twister Nov. 8, 1988
4711081 Thread brake mechanism for a spindle assembly of a thread processing machine Dec. 8, 1987
4673138 Apparatus for preventing scatter of fly in winder Jun. 16, 1987
4664335 Creel for warping machine May. 12, 1987
4642980 Tension device for use in two-for-one twister Feb. 17, 1987
4641688 Weft thread braking mechanism having a stepwise controllable braking effect Feb. 10, 1987
4605181 Strand tension controlling apparatus Aug. 12, 1986
4605182 Yarn tension control device Aug. 12, 1986
4502646 Twine tensioner for large round bale twine-wrapping mechanism Mar. 5, 1985
4468920 Pneumatically threadable yarn brake and a two-for-one twisting spindle equipped therewith Sep. 4, 1984
4467841 Clamping jaw arrangement of a thread clamp for textile yarns or the like Aug. 28, 1984
4457226 Twine-wrapping mechanism for a large round baler Jul. 3, 1984

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