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Adhesive-application-of-two-part-container

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Adhesive application of two-part container

Details

Inventors: Gordon, Gerald;
Assignee: The Continental Group, Inc. (Stamford, CT)
Primary Examiner: Massie; Jerome W.
Assistant Examiner:
Attorney, Agent or Firm: Kowalik; John J.

A container and method of adhesive bonding of two telescopic container halves wherein each container half has a cylindrical body, the inner container portion being circumferentially loaded to temporarily reduce its diameter and being forced in centered relation to the outer portion into a bead of adhesive laid in the interior of the outer portion to coat the raw edge on the inner portion, the inner portion shearing through the adhesive without wiping it off from the interior of the inner portion and thereafter the hoop stress on the inner portion being relieved so it springs out and squeezes excess bonding material from between the inner and outer portion and thus obtains thin film adhesive bond with good stress shear characteristics while holding the film in compression therebetween during curing or setting of the adhesive.

DETAILED DESCRIPTION I claim: 1.
A method of bonding a pair of container sections end to end wherein each section has a metal thin-walled cylindrical body with an open end defined by an end portion having a raw edge comprising: applying a bead of adhesive material of predetermined width on the interior side of the edge portion of one of said sections, and inserting the other section into said one section while applying a hoop stress to the end portion of said other section to reduce the diameter thereof to slightly less than the internal diameter of said one section, imbedding said end portion of said other section within said bead of adhesive while maintaining said end portion of the other section in radially spaced relation to said end portion of said one section to provide clearance therefrom and thereby leaving a film of adhesive material of predetermined thickness between the external side of the edge portion of the other section and the internal side of the edge portion of the one section, and then releasing the hoop stress on said end portion of said other section to cause excess bonding material to be squeezed out from therebetween and leaving a thin coating of said material therebetween.
2.
The invention according to claim 1 limiting the extent of insertion of said end portion of the other section to less than the band width of said bead to thereby bury the raw edge of the other section within said adhesive material.
3.
The invention according to claim 1 wherein said hoop stress limited to a factor within the elastic limit of the material of said end portion to essentially prevent permanent set thereof.
4.
The invention according to claim 1 wherein said raw edge is imbedded within the adhesive and said adhesive is caused to cover the interior side of said end portion of said other section.
5.
The invention according to claim 1 and said sections being made of aluminum.
6.
The invention according to claim 1 and said sections being 6-11 mils thick.

Description:
BACKGROUND OF THE INVENTION This invention relates to containers which are made of two halves and telescoped one into the other and secured by an adhesive

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