Speed multiply screwdriver handle

Details Speed multiply screwdriver handle Speed multiply screwdriver handle

2008-05-14

2010-12-14

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C606S104000

Reexamination Certificate

active

07849766

ABSTRACT:
A screwdriver is disclosed including a handle, a shaft, and a gearbox disposed between the handle and the shaft. The gearbox is structured and arranged to cause rotational motion of the shaft at a first rate due to rotational motion imparted on the handle at a second rate. In an embodiment, the first rate is greater than the second rate.

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