Portable power chain saw

Details Portable power chain saw Portable power chain saw

1981-01-28

1983-05-31

Peters, Jimmy C.

Cutlery

Cutting tools

Saw

188 111, B27B 1700

Patent

active

043854427

ABSTRACT:
A portable power chain saw with a safety device to protect against kick-back or recoil movements of the saw. The power chain saw has a handle, a finger guard which is arranged between the handle and the saw chain and acts as an inertial mass, as well as a blocking device which actuates the safety device at the beginning of a kick-back movement. The chain saw also includes a monitoring device, which responds to an operating condition of the chain saw impairing the safety of use thereof by an operator, and which is in effective connection with an indicating device. An auxiliary device may additionally be provided for actuating the safety device, and this auxiliary device is releasable by the monitoring device and ultimately brings the saw to a standstill.

REFERENCES:
patent: 3398246 (1968-08-01), Linet
patent: 3664390 (1972-05-01), Mattsson
patent: 3991469 (1976-11-01), Frederickson
patent: 4121339 (1978-10-01), Nikolich
patent: 4152833 (1979-05-01), Phillips
patent: 4246701 (1981-01-01), Johansson
patent: 4324045 (1982-04-01), Hoppner

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