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Class Information
Number: 144/34.5
Name: Woodworking > Special-work machine > Tree felling > Shear
Description: Tree felling means including a pair of blades adapted to slide past each other; one blade approaching the wood of the tree from one side, the other blade engaging the tree from the other side to sever the wood therebetween.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8146628 Shear type tree cutter Apr. 3, 2012
8145395 Vehicular stored energy processor Mar. 27, 2012
7938153 Shear attachment May. 10, 2011
7938154 Timber-working head with feed wheel adaptor plate May. 10, 2011
7654293 Tree pruners Feb. 2, 2010
7628185 Dipper stick cutter Dec. 8, 2009
7287563 Vehicle-mounted cutting tool Oct. 30, 2007
7243691 Tree shear Jul. 17, 2007
7240702 ATV mounted tree shear Jul. 10, 2007
7174932 Felling head accumulator arm Feb. 13, 2007
7121310 Underwater pile cutting apparatus and method of use Oct. 17, 2006
6901978 Apparatus and method for cutting trees Jun. 7, 2005
6779570 Wood gathering and compaction vehicle Aug. 24, 2004
6662836 Tree shear Dec. 16, 2003
6453957 Cutting attachment Sep. 24, 2002
6343633 Tree harvester Feb. 5, 2002
6024145 Articulated boom and head for manipulating objects under water Feb. 15, 2000
5868516 Mounting assembly for mounting a saw head to a tractor Feb. 9, 1999
5860214 Shearing machine with sickle-shaped blade Jan. 19, 1999
5826339 Forestry cutting, mulching and clearing tool Oct. 27, 1998
5697412 High capacity feller heads Dec. 16, 1997
5503201 Tree shear Apr. 2, 1996
5471747 Steel material shearing machine Dec. 5, 1995
5465771 Wood processing apparatus with impact hammer Nov. 14, 1995
5465770 Tree harvesting apparatus with impact hammer Nov. 14, 1995
5355920 Felling and delimbing apparatus allowing to delimb trees in length and its method of use Oct. 18, 1994
5179985 Lifting and crushing apparatus for tree stumps Jan. 19, 1993
5161588 Tree felling head with combination tree accumulator and tree abutment Nov. 10, 1992
5142779 Mobile wood and tire shear Sep. 1, 1992
5109900 Tree-felling head May. 5, 1992
5101873 Tree cutting apparatus Apr. 7, 1992
5080151 Lifting and crushing apparatus for tree stumps Jan. 14, 1992
5065514 Attachment for metal demolition shears Nov. 19, 1991
5044409 Force matching tree shear Sep. 3, 1991
4913203 Tree harvester Apr. 3, 1990
4911215 Tree feller-chipper Mar. 27, 1990
4908946 Wood cutting shear Mar. 20, 1990
4802517 Tree cutting apparatus Feb. 7, 1989
4763742 Tree feller-buncher Aug. 16, 1988
4686767 Metal cutting shear for a backhoe Aug. 18, 1987
4683924 Tree and brush cutting and chipping apparatus Aug. 4, 1987
4679604 Shear blade cutting device with adjusting blade alignment compensator Jul. 14, 1987
4669187 Shear apparatus Jun. 2, 1987
4641694 Tree felling, log cutting and splitting machine Feb. 10, 1987
4632158 Power limiting hydraulic system Dec. 30, 1986
4632163 Cutting system for trees, vegetation and other objects Dec. 30, 1986
4616417 Hydraulic shear head attachment for backhoe or the like Oct. 14, 1986
4565486 Device for handling material Jan. 21, 1986
4558515 Metal grapple shear Dec. 17, 1985
4541177 Delimbing shear Sep. 17, 1985

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