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US 3,937,641 AGranted
Method of assembling adhesive joint
AssigneeGeneral Electric Company
InventorsGerald J. Kushner, William D. Irish
Life of this patent
Estimating the term…
Abstract
The method of joining aluminum tubing wherein a heat curable adhesive in tape form is helically wound on the end portion of one tube prior to its being telescoped with the heated end of a second tube.
Claims4
A method of joining metallic tubing comprising:
- providing a first tube having an end portion adapted to receive an end portion of a second tube with radial clearance between the contiguous surfaces of the two tubes;
- helically winding a single thickness of heat curable adhesive film having a volume greater than said radial clearance to the end portion of said second tube to provide a space between said windings;
- heating the end portion of said first tube to a temperature sufficient to plasticize said adhesive film;
- telescoping the end portion of said second tube into the heated bore of the first tube and allowing the adhesive on said second tube to plasticize and spread into the radial clearance between the contiguous surfaces of the tubes while air entrapped during the spreading of said adhesive escapes between the helical winding and past the open end of said second tube;
- and
- heating said telescoped joint to a temperature sufficient to cure said adhesive.
3 more elements
Dependencies are inferred from the claim text.