Patent ID: 6694623
Filing Date: 2004-02-24
Classification: B27B

Abstract:
A lever chain adjuster for a chain saw having a motor housing, an elongated, flat, plate-like chain saw blade, and an endless chain with cutting teeth, said chain extending around a peripheral edge of said elongated flat blade, said chain extending in a continuous, endless loop, said chain having a proximal end extending around a sprocket gear that engages the chain and causes it to rotate around said peripheral edge of the elongated flat blade when the sprocket gear is rotated, said sprocket gear being attached to an output shaft of a motor means housed within said motor housing, comprising:said elongated flat blade having a proximal end portion and a distal end potion, said ends defining a horizontal, longitudinal axis, said elongated flat blade proximal end portion being secured to the motor housing, said elongated flat blade having an outer surface and an inner surface, said surfaces interconnected by a peripheral edge, said elongated flat blade surfaces lying in parallel vertical planes, said inner surface being defined as that elongated flat blade surface abutting the motor housing, said elongated flat blade having an elongated slot formed through the elongated flat blade proximal end portion, said slot having a longitudinal axis coincident with the longitudinal axis of the elongated flat blade, said elongated flat blade proximal end portion having a plurality of threaded holes formed therein; a pair of externally threaded post members, a proximal post member and a distal post member, secured to the motor housing and extending through said elongated flat blade elongated slot, said proximal post member being shortened so that no portion of the proximal post member protrudes through said elongated flat blade elongated slot; a turnbuckle assembly having a holding plate subassembly connected to said elongated flat blade proximal end portion threaded holes and a turnbuckle; a cam assembly with a base plate, said turnbuckle interconnecting the turnbuckle assembly with the cam assembly; and a removable cover attached to said cam assembly adapted for covering the elongated flat blade proximal end and chain proximal end.