Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Position or guide means
Patent
1990-01-11
1991-09-10
Kundrat, Andrew V.
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Position or guide means
403265, B25G 300, F16D 100
Patent
active
050468782
ABSTRACT:
A coupling fitting for making joints in reinforcing bars or wires for structural concrete aims to provide a mechanical strength of the coupling virtually equal to the full design strength while providing the ability to increase the strength upto and beyond ultimate tensile strength of the rebar by the addition of resin. To that end the coupling comprises a sleeve for fitting in spaced relation around adjacent portions of rebars to be joined and having positively adjustable engagers threaded through the wall of the sleeve, and profiled engagers to engage said portions. The engagers serve for centering the rebars and the profiling serves to provide a key preferably with both the sleeve and the rebar. It is also preferred to have the positively adjustable engagers configured to bite into the rebars. The spaced relation affords provision for introducing settable resin.
REFERENCES:
patent: 1689281 (1928-10-01), Forssell
patent: 4666326 (1987-05-01), Hope
Ericsen Arnold J.
Kundrat Andrew V.
Metal-Bond (Technology) Limited
Sylke C. Thomas
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