Arm controlled power cutter

Details Arm controlled power cutter Arm controlled power cutter

1988-06-17

1990-05-15

Yost, Frank T.

Cutlery

Tree hacks

30298, 30381, 302961, 224222, 224267, B26B 2700, A01G 303, B23D 5702, A45C 1330

Patent

active

049245716

ABSTRACT:
A portable power cutting apparatus has a control unit with a support for mounting the control unit on one arm of the user permitting the control unit and cutting tool to be supported by that arm. The support is pivotal and a flexible cable operatively connects a motor to the cutting tool for driving the tool. This permits the control unit to be pivoted in a lateral direction or twisted to allow the operator to move the cutting head in a variety of positions without loss of power by moving only the supporting arm and hand of the user. A handle is provided on the control unit for gripping by the hand of the user's support arm. A cutting tool suitable for girdling a tree and which can also be used to cut through tree branches and small tree trunks is also disclosed. This cutting tool is frustoconical in shape having a length of chainsaw chain wrapped in a spinal groove around the outside face of this tool body. In another embodiment the cutting tool is a chainsaw which can be operated with the supporting arm of the user.

REFERENCES:
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patent: 3090159 (1963-05-01), Wimberley
patent: 3986259 (1976-10-01), McReynolds
patent: 4179805 (1979-12-01), Yamada
patent: 4304275 (1981-12-01), Glover
patent: 4479303 (1984-10-01), Gardner
patent: 4593466 (1986-06-01), O'Brien
patent: 4619047 (1986-10-01), Heckman
patent: 4658507 (1987-04-01), Hazen

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