Hand-held saber saw

Details Hand-held saber saw Hand-held saber saw

2005-07-26

2005-07-26

Watts, Douglas D (Department: 3724)

Cutlery

Cutting tools

Saw

C030S500000, C030SDIG001

Reexamination Certificate

active

06920695

ABSTRACT:
A reciprocating hand saw (10), having a motor housing (16) and a gearbox (28) that receive a battery-operated direct-current motor (18) with a motor shaft having a shaft end (22) and a gear (28), respectively, which gear—as known per se in reciprocating saws—is connected to the shaft end in a way driven to rotate and whose gear input pinion (26) converts the rotation of the motor shaft end (22) into an up-and-down motion of a push rod (34) that carries a sawblade (38), can be produced economically and is especially sturdy because the gear (28) and its gearbox (14) originate in a reciprocating saw that can be operated by alternating current, and because between the shaft end (22) and the gear input pinion (26), a multi-stage coupling (24), disposed in a manner fixed against relative rotation for transmitting torque, comprises parts that can be easily separated from one another.

REFERENCES:
patent: 2695522 (1954-11-01), Papworth
patent: 5020606 (1991-06-01), Odor
patent: 5755293 (1998-05-01), Bourke
patent: 6256891 (2001-07-01), Van Camp
patent: 199 25 750 (2000-12-01), None
patent: 1 377 552 (1974-12-01), None

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