Joints and connections – Interfitted members – Including set screw
Patent
1997-09-08
1999-06-08
Stodola, Daniel P.
Joints and connections
Interfitted members
Including set screw
403265, 403267, 403305, 527261, B25G 334
Patent
active
059099801
ABSTRACT:
An elongated tubular metal body includes a longitudinally extending wedge portion having converging inner wedging surfaces defining an included angle of less than seventy degrees for receiving the end portions of concrete reinforcing bars. A series of longitudinally spaced threaded holes are formed within the tubular body in opposing relation to the wedge portion, and a socket head set screw or a shear head screw is threaded into each hole. The screws have conical pointed tips for penetrating a bar when the screws are tightened to a predetermined torque, and the screws force the outer ribs on the bar into the tubular body. In one embodiment, a section of cylindrical seamless tubing of ductile steel is cold-forged or deformed within a die set to form the tubular body with a generally diamond-shaped cross-sectional configuration. In another embodiment, the tubular steel body has thicker wall portions in the areas of the wedging surfaces and threaded holes and defines a chamber having a clover leaf cross-sectional configuration.
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Barsplice Products, Inc.
Lev Bruce A.
Stodola Daniel P.
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