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Class Information
Number: 474/114
Name: Endless belt power transmission systems or components > Means for adjusting belt tension or for shifting belt, pulley or guide roll > Pulley shifter > Pulley on shaft of adjustably mounted drive motor
Description:


Sub-classes under this class:

Class Number Class Name Patents
474/115 Spring biased in belt-tensioning direction 34


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7540465 Shock absorbing motor mount for vibratory belt drive Jun. 2, 2009
7448973 Belt tensioner and method Nov. 11, 2008
7360624 Electric power steering apparatus Apr. 22, 2008
7338400 Motor belt tensioning construction for an air handling unit Mar. 4, 2008
7311626 Crank shaft power takeoff system and method Dec. 25, 2007
7191866 Electric power steering apparatus Mar. 20, 2007
7111998 Adjustable camera with belt tensioning apparatus Sep. 26, 2006
6821222 Belt tensioning system and method Nov. 23, 2004
6705581 Pivotable motor mounting apparatus Mar. 16, 2004
6638191 Length adjustable belt tensioning arm Oct. 28, 2003
6578349 Pivoting gearbox for rotary mower Jun. 17, 2003
6305887 Structure for mounting motor of planing machine Oct. 23, 2001
6286619 ATV transmission Sep. 11, 2001
6120404 Belt tensioner Sep. 19, 2000
6092709 Machine for advancing a sheet metal strip in measured increments Jul. 25, 2000
6050915 Belt tensioner Apr. 18, 2000
5921876 Pivotal motor mount for tensioning a belt drive with a one-way restraint allowing pivotal movement in a tensioning direction and preventing movement in a slackening direction Jul. 13, 1999
5902202 Belt tensioning system May. 11, 1999
5421787 Operator interactive control of speed and torque in machine tools Jun. 6, 1995
5305673 Dual blade band saw Apr. 26, 1994
5280309 Single degree of freedom belt drive tensioning system for a plotter apparatus Jan. 18, 1994
5277665 Reactive torque control Jan. 11, 1994
5245960 Integral bracket and idler assembly Sep. 21, 1993
5214448 Belt-drive tensioning system which uses a pivoting member May. 25, 1993
5205331 Tension reducer for a power tool drive apparatus Apr. 27, 1993
5157980 Propulsion device for power machines or tools operating along continuous flow production lines Oct. 27, 1992
5094654 Swing saw Mar. 10, 1992
5035084 Gate fittings Jul. 30, 1991
4979927 Electric motor comprising lateral positioning means Dec. 25, 1990
4922151 Electric motor mounting assembly May. 1, 1990
4915203 Transmission control for self-propelled implement Apr. 10, 1990
4893661 Drive belt tension control apparatus for inverted rooter Jan. 16, 1990
4889519 Coordinate measuring machine Dec. 26, 1989
4887992 Alternator belt tension adjustor Dec. 19, 1989
4865576 Tensioner for an endless belt driven wood lathe Sep. 12, 1989
4865289 Holtless motor mounting arrangement with self tightening of drive belts Sep. 12, 1989
4830165 Drive mechanism for a reproduction apparatus May. 16, 1989
4721012 Power transmission for machine tools Jan. 26, 1988
4648854 Variable speed drive Mar. 10, 1987
4631044 Speed changing device Dec. 23, 1986
4618336 Belt stretching mechanism Oct. 21, 1986
4604079 Speed changer for electric motor Aug. 5, 1986
4583514 Ball throwing machine Apr. 22, 1986
4583961 Belt tensioner Apr. 22, 1986
4568318 Belt tensioning apparatus for belt/pulley drive system Feb. 4, 1986
4561624 Mounting platform Dec. 31, 1985
4518371 Power tool drive attachment May. 21, 1985
4512752 Belt tensioning device Apr. 23, 1985
4503792 Pivotable motor with mounting pin Mar. 12, 1985
4504253 Material mixing apparatus Mar. 12, 1985

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