Wci Outdoor Products, Inc.

Paul A Warfel

Lloyd H Tuggle

Kevin F Beaulieu

David C Allis

Rodney Tynes

Michael W Shoup

Jeff Franke

An arrangement that provides a semi-automatic tension adjustment of an endless cutting chain on a guide bar of a chain saw as the links of the chain wear with use. A specially designed cam biases a tensioner pin to continuously force the guide bar away from the drive sprocket on the engine chassis to tension the chain. A knob on a clutch cover assembly attached to the engine chassis can be tightened to force two high friction surfaces together to lock the guide bar in a tensioned position, or loosed to release the guide bar to seek a proper tensioned position. An override lever on the face of the clutch cover assembly moves in a channel with peripheral nomenclature that indicates when the cutting chain should be replaced. The entire arrangement is self-contained and does not require any tools to function.

Chain saw adjuster

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.

Resetting ignition switch for a gasoline powered chain saw

Chainsaw housing

A flexible line trimmer with a vibration dampening support handle includes a rotary power source and a rotatable trimmer head, both of which are connected by a drive shaft enclosed in a rigid housing. A flexible line trimmer has a vibration dampening rear support handle assembly and a front control handle. The rear handle assembly is resiliently coupled to the drive shaft housing and to the power source housing.

Flexible line trimmer having an anti-vibration handle

Growing community of inventors

Shreveport, LA, United States of America

Paul A Warfel