Concrete repairing agent injection plug

Details Concrete repairing agent injection plug Concrete repairing agent injection plug

1992-09-24

1994-07-19

Ridgill, Jr, James L.

Static structures (e.g., buildings)

With means for split-prevention or damaged part repair

52704, 52743, 52744, E04G 2302, E04B 141

Patent

active

053297407

ABSTRACT:
A concrete repairing agent injection plug for injecting the concrete repairing agent into an injection groove formed in a concrete wall to be repaired, The injection plug and the injection groove provide sufficient fluid tightness regardless of surface irregularities of the wall adjacent or around the injection groove so as to avoid leakage of the repairing agent during injection work. A elastic member is provided which is partly or fully inserted into the injection groove. First and second pressure plates are provided for interposing therebetween the elastic member. Distance between the first and second pressure plates is changeable by a pressure mechanism. When the distance is reduced, the elastic member is compressed and is laterally expanded to brought into intimate contact with walls of the injection groove to thus close an open end portion of the groove. A concrete repairing agent injection pipe is detachably insertable into through holes arranged in line through the pressure members and the elastic member. Upon completion of the sealing to the injection groove by the elastic member, the repairing agent is injected into the groove through the injection pipe.

REFERENCES:
patent: 4437276 (1984-03-01), Goldberg
patent: 4749170 (1988-06-01), Ase
patent: 5003749 (1991-04-01), Harke

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