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US 2004/0069096 A1Published application
Power driven wrench
OwnerSun B. Chainventor
Life of this patent
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Abstract
A power driven wrench which comprises a handle housing containing a power source and a motor disposed therein, a motor gear coaxially connected to the motor, a head housing united with said handle housing as a unit, said head housing containing a hexagonal, cutout socket receiving head gear adapted to receive a socket for engaging various types of nuts and bolts. A plurality of gears connecting the motor gear and the head gear, and a plurality of top ball bearing sets and bottom ball bearing sets, which are spring biased to engage top surface and a bottom surface of the head gear.
Claims7
A power driven wrench which comprises:
- a handle housing containing a power source and a motor disposed therein;
- a motor gear coaxially connected to the motor;
- a head housing united with said handle housing as a unit, said head housing containing a hexagonal, cutout socket receiving head gear adapted to receive a socket for engaging various types of nuts and bolts;
- a plurality of gears connecting the motor gear with the head gear;
- and
- a plurality of top ball bearing sets and bottom ball bearing sets, which are spring biased to engage a top surface and a bottom surface of the head gear.
3 more elements
Dependencies are inferred from the claim text.