US 4,622,085 A · Method of and apparatus for injecting an adhesive

Abstract

A plurality of injectors of the present invention are connected to a single source of a high-pressure gas to inject an adhesive material into cracks and delaminated sections of a building concurrently. Each injector has a front piece for attaching to a target area. An assembly comprising an inner container containing an adhesive material and an outer container enclosing the inner container is attached to a single cap to make a liquid-tight and gas-tight connection, respectively, and the cap is attached to the back of the front piece to make a liquid-tight connection by means of matchingly tapered surfaces. The inner container is elastic and has a concave bottom surface so that a high-pressure gas introduced into the space between the inner and outer containers can push out the adhesive material efficiently and smoothly from the inner container through the front piece.

Claims10

Dependent claims

A method of injecting an adhesive material into a cracked or delaminated section of a structure comprising the steps of

attaching a front piece to a target area,
engagingly connecting a deformable bag-like container containing an adhesive material to said front piece, and
sending a fluid with an adjustably controlled pressure into an external container which encloses said bag-like container therein and is connected to said front piece in an air-tight manner so as to apply said pressure uniformly to said bag-like container, to compress said bag-like container and to inject said adhesive material out of said bag-like container through said front piece.

Dependencies are inferred from the claim text.

Method of and apparatus for injecting an adhesive

Life of this patent

Method of and apparatus for injecting an adhesive

Life of this patent

Abstract

Claims10