Cordless ratchet wrench

Details Cordless ratchet wrench Cordless ratchet wrench

2005-07-12

2005-07-12

Ackun, Jr., Jacob K. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057290

Reexamination Certificate

active

06915721

ABSTRACT:
An electrical ratchet wrench has a body, a motor, a battery set, a switch, a planet gear assembly, a connecting collar, a head and a ratcheting device. The motor is received in the body and has an output shaft with a pinion. The battery set is detachably received in the body and is electrically connected to the motor. The switch is electrically connected between the motor and the battery set. The planet gear assembly is received in the body and has a rotating base, a stub, multiple planet gears and a stationary collar. The connecting collar securely holds the stationary collar in the connecting collar. The ratcheting device is received in the head for driving a fastener to rotate and has a driven shaft connected to the stub on the rotating base. Accordingly, a cordless electrical ratchet wrench is provided and is convenient in use.

REFERENCES:
patent: 4974475 (1990-12-01), Lord et al.
patent: 5231901 (1993-08-01), Putney et al.
patent: 6311583 (2001-11-01), Izumisawa
patent: 6715380 (2004-04-01), Listl et al.
patent: 2004 10616 1 (2004-04-01), None

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