Apparatus for repairing cracked walls

Details Apparatus for repairing cracked walls Apparatus for repairing cracked walls

1990-11-09

1993-06-29

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

Hand manipulable tool

156 94, 264 36, 425 13, 425 14, B29C 4503

Patent

active

052232727

ABSTRACT:
A method of repairing cracks in brick walls by drilling spaced apart injection ports into the crack. Verification ports are drilled generally in alignment with the injection ports on each side of the crack. The wall is saturated with water and grout is injected into the injection ports until a limiting pressure is reached or until grout begins to flow from the verification ports. An apparatus for repairing cracked brick walls includes a grout delivery tube having a nozzle and an expandable sleeve to seal to the tube within injection ports. Valves and a grout circulation loop control the injection of grout from the delivery tube.

REFERENCES:
patent: 1883196 (1932-10-01), Wertz
patent: 3557563 (1971-01-01), Stevens
patent: 3651203 (1972-03-01), Massonnet
patent: 4597727 (1986-07-01), Birkhauser, III
patent: 4872403 (1989-10-01), LaGesse et al.
patent: 5063006 (1991-11-01), Tahara

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