Apparatus for sealing containers

Details Apparatus for sealing containers Apparatus for sealing containers

1982-09-21

1984-05-08

Gilden, Leon

Sheet metal container making

Apparatus applying closure to receptacle

413 2, B21D 5100

Patent

active

044471840

ABSTRACT:
A heatable sealing head comprises a resiliently yielding pressure element and has at least one cup spring. The pressure element serves to transmit pressure and heat to a closure lid insertable between the sealing head and the rim of a container, this lid to be deformed about portions of the container rim. In the relaxed normal position, the sealing head includes a conical contact surface for the closure lid. The contact surface can be resiliently bent back against the pressure of the rim of the container mouth. The metallic closure lid is provided with thermoplastic material on the side facing the container rim. For the purpose of improving the fixing of the closure lid to the container rim, the contact surface of the pressure element projects increasingly radially inward starting from the sealing head.

REFERENCES:
patent: 1854424 (1932-04-01), Peelle
patent: 2431114 (1947-11-01), Golding
patent: 3121944 (1964-02-01), Karau
patent: 3478553 (1969-11-01), Weglarz
patent: 4373371 (1983-02-01), Liu

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