Resetting ignition switch for a gasoline powered chain saw

Details Resetting ignition switch for a gasoline powered chain saw Resetting ignition switch for a gasoline powered chain saw

1995-03-01

1996-01-23

Dolinar, Andrew M.

Internal-combustion engines

Starting device

Control of spark ignition during starting

12317918, F02D 3702

Patent

active

054858143

ABSTRACT:
A resetting ignition switch for a portable power tool whereby movement of a choke assembly from a first, normal position to a second, choking position simultaneously and automatically moves an ignition switch from a stop to a run position to permit starting of the engine. The ignition switch, which forms a portion of an ignition circuit for the power tool, includes an integral lever which extends across a body of the power tool and relatively beneath a shaft of the choke. The shaft includes a depending arm which engages and rotates the lever as the shaft is moved longitudinally from its normal position toward its choking position. Rotation of the lever causes the ignition switch to pivotally move from the stop to the run position. The ignition switch is movably without interference from the choke assembly when the choke assembly is in its normal position.

REFERENCES:
patent: 2791207 (1957-05-01), Rayniak
patent: 4079708 (1978-03-01), Wieland et al.
patent: 4919091 (1990-04-01), Wissmann et al.
patent: 5209196 (1993-05-01), Nickel et al.
patent: 5215049 (1993-06-01), Wolf

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