US 2004/0163771 A1 · Apparatus for dispensing beaded adhesives

Abstract

A method for adhesively joining two members includes the steps of mixing non-compressible beads with an adhesive, applying the resulting mixture to one of the members and hemming one member over the other in overlapping relationship. Apparatus for performing this method includes a container for containing a mixture of an adhesive and a plurality of non-compressible beads, an applicator for applying the mixture to one of the members, and hemming means for hemming one member over the other in overlapping relationship. A metering device for dispensing adhesive fluid is constructed with a dispensing rod having a cooling means for facilitating operation of the metering device. The present invention finds particular utility in bonding together the inner and outer panels of an automotive door assembly.

Claims29

Dependent claims

An adhesive application gun for dispensing an adhesive mixture having non-compressible beads therein comprising:

a housing defining a first chamber and a second chamber;
a elongated tube having an inlet in communication with said first and second chambers, an outlet and a mixing element disposed in said elongated tube between said inlet and said outlet to provide a tortuous mixing path therein;
a first valve operable to regulate flow of a first adhesive mixture including non-compressible beads and a first adhesive component through said first chamber and into said elongated tube;
and
a second valve operable to regulate flow of a second adhesive component through said second chamber and into said elongated tube;
wherein said tortuous mixing path is operable to thoroughly mix said first adhesive mixture and said second adhesive component.

3 more elements

Dependencies are inferred from the claim text.

Apparatus for dispensing beaded adhesives

Life of this patent

Apparatus for dispensing beaded adhesives

Life of this patent

Abstract

Claims29