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US 6,182,538 B2Granted
Shank structure for a wrench
OwnerChing Cheninventor
Life of this patent
Estimating the term…
Abstract
A wrench includes a shank having two ends and a plurality of recesses are respectively defined in two surfaces of the shank. Any two adjacent recesses in the first surface of the shank are divided by a first rib and any two adjacent recesses in the second surface of the shank are divided by a second rib. The first ribs and the second ribs are located crosswise so as to have better structural strength.
Claims4
A wrench comprising:
- a shank having two ends, said shank having a first surface and a second surface, a plurality of first recesses defined in said first surface of said shank and divided by first ribs, a plurality of second recesses defined in said second surface of said shank and divided by second ribs, said first ribs and said second ribs located crosswise.
Dependencies are inferred from the claim text.