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US 5,458,718 AGranted
Heat sealing method for making a luggage case
AssigneeVIP Industries Limited
InventorRamchandra Venkitachalam
Life of this patent
Estimating the term…
Abstract
A method of joining a beading to a luggage case is provided in which the beading has a conductive material, for example a length of wire embedded within it and in which the beading and the luggage case are positioned together and the conductive material made to pass a current so that it heats up causing the thermoplastic materials to melt locally and fuse. A hard shell luggage case having a thus joined beading and which in a particular embodiment includes a lining which also becomes attached to the case in the method is also provided.
Claims7
A method of attaching a beading to a luggage case shell which comprises:
- positioning a thermoplastic beading around the periphery of the said luggage case shell, the periphery of the luggage case shell being thermoplastic and a length of conductive material being embedded in one of said beading and said luggage case shell;
- and
- passing a current through the conductive material whereby the material of the thermoplastic beading and luggage case shell melt and fuse locally, to attach the beading to the luggage case shell.
Dependencies are inferred from the claim text.