Reinforcing bar coupling

Details Reinforcing bar coupling Reinforcing bar coupling

2005-03-01

2005-03-01

Cottingham, John R. (Department: 3679)

Joints and connections

Distinct end coupler

Including member wedging or camming means

C403S109500, C403S286000, C403S293000, C403S300000, C403S312000, C403S367000, C403S374100, C403S374200, C403S374300, C403S374400, C052S749100

Reexamination Certificate

active

06860672

ABSTRACT:
A reinforcing bar coupling is provided for simply and quickly applying to a mechanical butt joint of two bars in the concrete constructions. The reinforcing bar coupling is consisted of a cylindrical sleeve (2) formed an uneven inner surface (22) to mate with the ribs (11) formed around outer surface of the reinforcing bars (1), an intermediate pad (3) having an uneven semi-circular surface at one side and an inclined-declined flat surface at opposite side, a gap provided between the cylindrical sleeve (2) and the intermediate pad (3), and a pair of wedges (4) being inserted into the gap. The inner surface of the cylindrical sleeve (2) and the outer surface of the reinforcing bars (1) are radially compressed to provide the butt joint of the two bars (1) by the wedging action.

REFERENCES:
patent: 62081 (1867-02-01), Smith
patent: 85465 (1868-12-01), McKinney
patent: 256280 (1882-04-01), Brown
patent: 422720 (1890-03-01), Capron
patent: 3551999 (1971-01-01), Gutmann
patent: 4127354 (1978-11-01), Mixon, Jr.
patent: 4408926 (1983-10-01), Werner
patent: 6328499 (2001-12-01), Reding et al.

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