Hand tool for removal of metal chips from blind holes
OwnerGary Kieferinventor
Life of this patent
Estimating the term…
Abstract
A hand tool includes a handle sized and provided with an outer shape and finish to be comfortably grabbed and manually turned, and a shank extending from one end of the handle coaxially therewith. The shank is formed with a chip-engaging free end portion in the form of self-threading or self-tapping threads that continue to and terminate in a point at the free end thereof. A pile of chips at the bottom of a blind tapped hole is removed by inserting the free end of the threaded shank into the hole until the chips are encountered, turning the tool while applying a slight pressure such that the free end of the tool threads into the pile of chips, and then pulling the free end of the tool from the hole to remove the chips threaded thereon.
Claims16
A method for removing metal chips from the bottom of a blind hole machined in a metal work piece, the method comprising the steps of:
- (A) providing a hand tool comprising:
- (1) a handle having first and second opposing ends and extending therebetween along a longitudinal central axis, the handle having an outer profile sized and shaped for comfortable manual grabbing and turning;
- and
- (2) a threaded shank extending coaxially from the second end of the handle, the shank having an end fixedly connected to the second end of the handle and a free end portion provided with a continuous outer thread tapering inwardly to a terminating free end point;
- (B) aligning the shank with the blind hole in the work piece;
- (C) inserting the free end portion of the shank into the blind hole;
- (D) manually turning the handle and threading the terminating free end and tapering thread of the shank into the metal chips;
- and
- (E) withdrawing the threaded shank and metal chips thereon from the hole.
A method for removing metal chips from the bottom of a blind hole machined in a metal work piece, the method comprising the steps of:
- (A) providing a hand tool comprising:
- (1) a handle having first and second opposing ends and extending therebetween along a longitudinal central axis, the handle having an outer profile extending axially between said ends and generally symmetric about said axis, the outer profile being sized and shaped for comfortable manual grabbing and turning, the second end of the handle being formed with a recess extending generally toward the first end of the handle, and
- (2) a threaded shank extending coaxially from the second end of the handle, the shank having an end fixedly secured into said recess and having a free end portion provided with a continuous outer thread tapering to a terminating free end point;
- (B) aligning the shank with the blind hole in the work piece;
- (C) inserting the free end portion of the shank into the blind hole;
- (D) manually turning the handle and threading the terminating free end point and tapering thread of the shank into the metal chips;
- and
- (E) withdrawing the threaded shank and metal chips thereon from the hole.
Dependencies are inferred from the claim text.