Sealant injection method and an apparatus therefor

Details Sealant injection method and an apparatus therefor Sealant injection method and an apparatus therefor

1989-11-09

1991-01-22

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

141 1, 141114, 156578, 264 36, 425 12, 425 13, B32B 3500

Patent

active

049868624

ABSTRACT:
The present invention is a method of sealant injection and the apparatus to be used therefor. The method is comprises the steps of injecting the sealant into a bellows-like injection container through a check valve and compressing the container resiliently by the spring means to inject the sealant into the cracks of the structures of such as concrete at a low velocity and under a low pressure constantly. The apparatus comprises an injection pipe to be adhered to the surface of the crack, a bellows-like injection container to be connected the pipe, a check valve provided between the injection container and the injection inlet and resilient means to compress the container.

REFERENCES:
patent: 4555286 (1985-11-01), Orikasa et al.
patent: 4555295 (1985-11-01), Orikasa et al.
patent: 4622085 (1986-11-01), Yamada et al.
patent: 4861401 (1989-08-01), Miura et al.

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