Patent ID: 6126355
Filing Date: 2000-10-03
Classification: F16B,Y10T

Abstract:
A threaded fastener for integrally and releasably securing two or more objects, including:an elongate axially extended shank having first threads and second threads formed therealong;a cap mounted to the shank and having a surface comprising a first clamping face;a clamping knob having a bore therethrough internally threaded for a threaded engagement of the knob with the first threads of the shank, and further having a surface comprising a second clamping face opposed to the first clamping face of the cap when the knob and the shank are threadedly engaged, the surface of the knob further comprising a first locking face opposite the second clamping face;a knob retaining member having a surface comprising a second locking face, and threaded for a threaded engagement with the second threads of the shank to enable a variable axial positioning of the retaining member relative to the shank, thus to facilitate a selective positioning of the second locking face for a surface engagement with the first locking face of the knob when the knob and shank are threadedly engaged, whereby the retaining member, due at least in part to a mismatch between said first threads and said second threads, tends to secure the knob against movement in a direction away from the cap when the locking faces are so engaged; andan internal aperture formed within the shank, extended axially and open to at least one end of the shank, wherein said first threads comprise external threads formed along the shank and the second threads comprise internal threads formed within the internal aperture;wherein the retaining member includes an elongate shaft threaded for engagement within the internal aperture of the shank, and a head integral with the shaft and having a surface comprising said second locking face.