Collapsible dispensing tube

Details Collapsible dispensing tube Collapsible dispensing tube

A - Human Necessities

47

K

26/182, 222/92

A47K 5/00 (2006.01) B23P 15/00 (2006.01) B29C 45/14 (2006.01) B65D 35/12 (2006.01)

Patent

CA 1093033

A B S T R A C T A collapsible dispensing tube in which plastic fabricating materials other than conventional materials can be selected which are more suitable, since the pressure in the process is increased while the temperature is decreased. This manufacturing method utilizes a locking taper resulting in a better bond between the headpiece, barrier member and the inner wall of the collapsible tube and substantially eliminating blow-by of plastic material into said collapsible tube. The barrier member has an extreme peripheral edge at least a substantial part of which is tightly engaged with the adjacent inner wall of the collapsible tube and substan- tially eliminates bypass of gases around the barrier member. The method of manufacture permits the selection of the most suitable thermoplastic material for the intended use from a group of materials.

306971

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