Weight screw
First Claim
1. A screw comprising:
- a drive part comprising a receiving cavity;
a threaded part comprising a projecting portion and a pocket; and
a retaining ringwherein the drive part is formed separately from the threaded part,wherein the retaining ring is disposed in the pocket,wherein the projecting portion is sized to mate with the receiving cavity,wherein the receiving cavity comprises a first plurality of interface surfaces,wherein the projecting portion comprises a second plurality of interface surfaces, andwherein friction between the first and second pluralities of interface surfaces fixes the drive part to the threaded part.
7 Assignments
0 Petitions
Accused Products
Abstract
A screw comprising a drive part, a threaded part, and a retaining ring is disclosed herein. Each of the drive part and the threaded part comprises a plurality of interface surfaces that transmit torque from the drive part to the threaded part and prevent the parts from disengaging from one another during use. Each plurality of interface surfaces forms one or more geometric shapes that create additional friction between the drive and threaded parts, and may further include mating pins and holes to prevent the parts from detaching from one another. The retaining ring, which removably connects the screw to a wrench during assembly of the screw with a receptacle, is disposed within a cavity formed when the drive part is assembled with the threaded part.
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Citations
20 Claims
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1. A screw comprising:
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a drive part comprising a receiving cavity; a threaded part comprising a projecting portion and a pocket; and a retaining ring wherein the drive part is formed separately from the threaded part, wherein the retaining ring is disposed in the pocket, wherein the projecting portion is sized to mate with the receiving cavity, wherein the receiving cavity comprises a first plurality of interface surfaces, wherein the projecting portion comprises a second plurality of interface surfaces, and wherein friction between the first and second pluralities of interface surfaces fixes the drive part to the threaded part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A weight screw comprising:
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a drive part composed of a material having a density of no less than 1 g/cc and no more than 16 g/cc; a threaded part formed separately from the threaded part composed of a material having a density of no less than 2.5 g/cc and no more than 12 g/cc; a receiving cavity comprising a first plurality of interface surfaces; a projecting portion comprising a second plurality of interface surfaces; a pocket; and a retaining ring composed of a metal alloy, wherein the retaining ring is disposed in the pocket, wherein the pocket is sized to permit the retaining ring to expand in a horizontal direction and not a vertical direction, wherein the projecting portion is sized to mate with the receiving cavity, and wherein friction between the first and second pluralities of interface surfaces fixes the drive part to the threaded part. - View Dependent Claims (18, 19, 20)
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Specification