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US 6,279,430 B1Granted
F-type socket wrench
OwnerChih-Ching Hsiehinventor
Life of this patent
Estimating the term…
Abstract
A F-type socket wrench including a handle, a coupling block mounted in an opening of the handle, a steel ball stopped between a transverse back groove of the coupling block and a spring inside the handle, a tightening up screw threaded into an axial screw hole at the front end of the handle and having a rounded front end stopped against a transverse front groove of the coupling block, the coupling block having a square coupling rod for turning a wrench socket, the square coupling rod having a diagonal line between its two angles disposed in parallel to the longitudinal center line of the handle.
Claims1
An F-type socket wrench comprising:
- a handle having an opening at one side near a front end, an axial screw hole at said front end in communication with said opening, and an axial blind hole extended from one side of said opening and disposed in longitudinal alignment with said axial screw hole;
- a coupling block having a base mounted in said opening of said handle, a transverse front groove at a front side of said base, a transverse back groove at a back side of said base, and a square coupling rod perpendicularly raised from an upper surface of said base for turning a wrench socket;
- a spring mounted in said axial blind hole of said handle to impart a forward pressure to said base of said coupling block;
- a steel ball supported on said spring and abutting said transverse back groove of said base of said coupling block;
- and
- a tightening screw threaded into said axial screw hole of said handle and having a rounded front end abutting said transverse front groove of said base of said coupling block.
3 more elements
Dependencies are inferred from the claim text.