Back to results
US 5,052,253 AGranted
Screwdriver
OwnerChing-Jou Lininventor
Life of this patent
Estimating the term…
Abstract
A screwdriver comprising a handle having a sleeve mounted on the blade thereof for releasably fastening a screw head retainer socket to secure the device to a screw to be fastened or loosened. The handle is comprised of two sections which are permitted to rotate against each other.
Claims3
A screwdriver comprising:
- a) a handle including a main body portion having a substantially truncated cone configuration and a hollow end portion having an outer wall and a substantially semispherical configuration, the hollow end portion including an internal ring-shaped flange having a bottom edge, a round hole therein and defining a continuous circular channel with the outer wall;
- b) a screw driving tool secured in an opposite end of the handle for driving screws;
- and
- c) a swivel member secured to the handle at the hollow end portion thereof, the swivel member including a plurality of retainer elements extending through the round hole of the ring-shaped flange and disposed in locking engagement with the bottom edge of the flange to permit the swivel member and the handle to rotate relative to each other through 360.degree., and a plurality of slide blocks disposed in sliding engagement within the circular channel for stabilizing the relative rotation of the swivel member and the handle.
1 more element
Dependencies are inferred from the claim text.