Method of sealing an article via radio frequency

Details Method of sealing an article via radio frequency Method of sealing an article via radio frequency

1988-08-09

1990-02-13

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562744, 1562751, 156294, 1563031, 1563087, 1563084, 1563096, B32B 3128

Patent

active

049003895

ABSTRACT:
A method of radio frequency sealing attaches a seal member to a cylindrical, hollow, access port of a container. The method uses two sets of spaced apart die elements to generate an axial electric field along a region where the port and seal member overlap. An external peripheral ring is formed about an exterior surface of the port. The method can be used with containers having a sealed periphery as well as those previously filled with a fluid.

REFERENCES:
patent: 2816596 (1955-08-01), Welch, Jr.
patent: 3222590 (1964-03-01), Clark
patent: 3558397 (1968-02-01), Clark
patent: 3706620 (1972-12-01), Dykstra
patent: 4417753 (1983-11-01), Bacehowski et al.
patent: 4419095 (1983-12-01), Nebergall et al.
patent: 4547641 (1985-10-01), Nebergall et al.
patent: 4576671 (1986-03-01), Shimahaka

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