Sealing method and container assembly with improved seal

Details Sealing method and container assembly with improved seal Sealing method and container assembly with improved seal

1988-07-13

1991-01-08

Bell, Janyce

Dispensing

With discharge assistant

Insertable cartridge or removable container

427230, 427302, 427337, 427399, 427400, G01F 1120, B05D 310

Patent

active

049828789

ABSTRACT:
Containers which hold a flowable composition are sealed by applying a material which in contact with the flowable composition forms a protective sealing layer in the area requiring a seal. An improved container assembly is disclosed comprising a cartridge containing a flowable composition and a piston inserted into one end of the cartridge to express the flowable composition therefrom, wherein the gap between the cartridge and the piston is sealed by a protective layer produced by reaction of the flowable composition and material applied to the surface of the flowable composition.

REFERENCES:
patent: 2925622 (1960-02-01), Mahler

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