Port protector cap for a container

Details Port protector cap for a container Port protector cap for a container

1976-07-14

1977-09-06

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

128272, 150 8, 215305, 215320, B65D 4120

Patent

active

040462765

ABSTRACT:
A protector cap for establishing a sterile seal over a port having a puncturable section in a container wall and a cylindrical neck portion projecting from the periphery of the wall section. The cap comprises a molded housing having a ring-shaped recess for sealingly engaging the neck member and a chamber formed at least in part within a compressible handle portion. The handle portion is compressed prior to inserting the cap on the neck portion of the port and is subsequently released to establish a partial vacuum in the chamber. The partial vacuum assists in retaining the protector cap in position and prevents trapped air from forcing the cap off during subsequent heat-sterilization of the container.

REFERENCES:
patent: 2266270 (1941-12-01), Roth
patent: 2634014 (1953-04-01), Kimber
patent: 2717728 (1955-09-01), Gray
patent: 2723041 (1955-11-01), Hart-Still
patent: 2953272 (1960-09-01), Mumford
patent: 3030955 (1962-04-01), Gossett
patent: 3152711 (1964-10-01), Mumford
patent: 3244308 (1966-04-01), Esposito
patent: 3746001 (1973-07-01), Ralston

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