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US 4,285,375 AGranted
T-Bar ratcheting screwdriver
OwnerJ. Bruce Judsoninventor
Life of this patent
Estimating the term…
Abstract
A screwdriver assembly includes a detachable handle, a fixed non-rotatable socket and a dual ratcheting socket extending transverse to the axis of the handle to the screwdriver with the dual sockets to obtain reversal of the screwdriver rotation.
Claims2
A T-bar ratcheting screwdriver assembly comprising in combination:
- an elongated generally cylindrical handle for grasping in the hand including a socket fixed co-axially thereof for detachably receiving a screwdriver shank for rotation therewith,
- ratchet rotor means having teeth formed on the outer diameter thereof, and mounted in a transverse bore substantially midway between the ends of said handle and having a rotary axis transverse to the axis of said handle and a shank receiving socket in each end thereof extending to and accessible to opposite sides of said handle for alternately detachably receiving a screwdriver shank for reversible rotation thereof by said handle, and
- a pawl member slideably mounted in a channel extending along the axis of said handle and biased into engagement with said teeth,
- a screwdriver stem having a shank portion for removably mounting in said socket for rotation therewith said handle includes a bore coaxially in one end thereof communicating with said channel, and
- a plug member having said socket therein press fitted into said bore.
2 more elements
Dependencies are inferred from the claim text.