Fastener
OwnerYing-Mo Lininventor
Life of this patent
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Abstract
A fastener is provided, including: a driven end including an engaging hole which includes three slots recessed radially and angularly arranged in intervals, each of the three slots being formed as a part of a rectangle and including two right angles, every adjacent two of the three slots defining a rib therebetween.
Claims9
A fastener, including a driving end which includes an engaging hole which includes three slots which are recessed radially and angularly arranged in intervals, each of the three slots being formed as a part of a rectangle and including two right angles, every adjacent two of the three slots defining a rib therebetween;
- wherein every adjacent two of the three slots are connected with a plane therebetween, and each said plane is parallel to a radially-facing face of one of the three slots.
A fastener, including a driving end which includes an engaging hole which includes three slots which are recessed radially and angularly arranged in intervals, each of the three slots being formed as a part of a rectangle and including two right angles, every adjacent two of the three slots defining a rib therebetween,
- wherein each of the three slots further includes a side face whose height is a height of the rib multiplied by 1/sin(30°).
A fastener, including a driving end which includes an engaging hole which includes three slots which are recessed radially and angularly arranged in intervals, each of the three slots being formed as a part of a rectangle and including two right angles, every adjacent two of the three slots defining a rib therebetween;
- wherein the three slots are equiangularly arranged in intervals.
Dependencies are inferred from the claim text.