Container with lid seal

Details Container with lid seal Container with lid seal

1991-12-31

1992-10-06

Marcus, Stephen

Receptacles

Closures

Removable closure guided in rotary movement

220296, 220DIG25, 220355, 215354, B65D 4106

Patent

active

051524163

ABSTRACT:
A plastic container and lid both of resilient material with the container having spaced thread segments below its upper edge and the lid having a central section from which extends an outer sealing section with a curved upwardly sloping inner wall and thread segments on the inside of a skirt wall extending downwardly from the sealing section. Threading of the lid onto the container in a downward direction brings the inner periphery of the container upper edge into an increased contact with the lid sealing section curved upwardly sloping inner wall and the latter also exerts an outward radial force on the container wall to enhance the sealing action and which also tightens the engagement between the lid skirt and container wall in the areas of their mating threads.

REFERENCES:
patent: 2063538 (1936-12-01), Dahl
patent: 2181340 (1939-11-01), Plumb
patent: 2914206 (1959-11-01), Lowen
patent: 3482725 (1969-12-01), Exton
patent: 3540612 (1970-11-01), Brady
patent: 3831798 (1974-08-01), Rowe et al.
patent: 4674644 (1987-06-01), Jacobs
patent: 4771905 (1988-09-01), Perne et al.
patent: 4976370 (1990-12-01), Cassel

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