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Class Information
Number: 254/217
Name: Implements or apparatus for applying pushing or pulling force > Portable implements or apparatus for tensioning flexible material or for extracting stumps or poles > Including rotatably driven drum for engaging either material or force transmitting cable > Having ratchet wheel and interengaging pawl for driving drum
Description: Implements or apparatus wherein the drum is rotated about its axis by a drive train which includes a rotatable wheel having teeth on its inner or outer perimeter and a pawl which is reciprocated along a linear or angular path; the pawl engages the teeth and turns the wheel during movement in one of its directions and disengages from the teeth during its return movement.

Sub-classes under this class:

Class Number Class Name Patents
254/218 Pawl pivots about fixed point on drive handle 66

Patents under this class:

Patent Number Title Of Patent Date Issued
8702065 Quick tightener Apr. 22, 2014
8550436 Spindle for a winch Oct. 8, 2013
8528849 Ratchet buckle Sep. 10, 2013
8499662 Pull handle structure of a hand puller Aug. 6, 2013
8370997 Ratchet strap Feb. 12, 2013
8302751 Driving system for belt axis of winch Nov. 6, 2012
8209821 Lockable ratchet buckle Jul. 3, 2012
8065781 Adjustable tourniquet Nov. 29, 2011
7913977 Handle with a ratchet mechanism tightening a tape winding it around an object Mar. 29, 2011
7909306 Ratchet strapping device Mar. 22, 2011
7877846 Ratchet buckle with excess strap retention arm and double layered arm Feb. 1, 2011
7559729 Rapid rotating device for ratchet belt shaft Jul. 14, 2009
7475869 Tensioning device for polymer fencing Jan. 13, 2009
7464915 Binding device Dec. 16, 2008
7374152 Hand lever for a binding machine May. 20, 2008
7192009 Chain winch Mar. 20, 2007
7107655 Strap tenser Sep. 19, 2006
7100901 Tension ratchet with a belt magazine, and belt magazine Sep. 5, 2006
6899320 Chain link fence tightening assembly May. 31, 2005
6820862 Wire strainer Nov. 23, 2004
6808227 Over-head camper tie-downs Oct. 26, 2004
6808164 Rope tensioning device Oct. 26, 2004
6769155 Tensioning and relaxing element Aug. 3, 2004
6729604 Truck strap winch rewinding device May. 4, 2004
6547218 Ratchet and cam buckle tensioning assembly and method for using same Apr. 15, 2003
6457701 Strap tightener Oct. 1, 2002
6095450 Pivot for a winding device Aug. 1, 2000
6050290 Hose reel apparatus Apr. 18, 2000
5368281 Ratchet pulley for tightening cords or ropes Nov. 29, 1994
5271606 Tensioning ratchet for a lashing strap Dec. 21, 1993
5186586 Remote release device for load binders Feb. 16, 1993
5145299 Remote release device for load binders Sep. 8, 1992
4584741 Clasping device Apr. 29, 1986
4542883 Device for tensioning straps Sep. 24, 1985
4510651 Ratchet buckle with a removable operating lever Apr. 16, 1985
4317301 Apparatus for stretching fabric Mar. 2, 1982
4293121 Winch arrangement Oct. 6, 1981

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