Method of injecting adhesives into cracks

Details Method of injecting adhesives into cracks Method of injecting adhesives into cracks

1987-12-15

1989-08-29

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

264 36, 425 12, 425 13, B32B 3500

Patent

active

048614017

ABSTRACT:
A method of injecting adhesives (7) into cracks (2) of structures (1) for sealing the cracks, involves affixing injection pipes (4) on non-sealed surface portions of the structures at the cracks and connecting an adhesives injection device (10) to each one of the injection pipes. The injection devices are comprised of transparent cylinders having scales thereon graduated toward injection, nozzles (17) thereof, and of pistons (13) which can move linearly in both directions in the cylinders. The nozzles are respectively connected to the injection pipes after adhesives are drawn into the cylinders, and the pistons are moved toward the nozzles by compression, or pushing pressure, of rubber or springs to inject the adhesives into the cracks.

REFERENCES:
patent: 3905521 (1975-09-01), Mead et al.
patent: 3993520 (1976-11-01), Werner et al.

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