Ultrasonically welded container and process

Details Ultrasonically welded container and process Ultrasonically welded container and process

1986-08-01

1988-02-23

Norton, Donald F.

Bottles and jars

Closures

Retained by bonding or adhesive means

156 69, 156 731, 215311, 215355, B65D 3904

Patent

active

047264810

ABSTRACT:
A package (10) includes a polyethylene terephthalate (PET) container (12) having a necked opening (14). A PET insert (18) is fixedly attached to an inside surface (30) of the necked opening (14) by a plurality of tack welds (34). The insert (18) makes a substantially line contact (32) with the inside surface (30) of the necked opening (14). The substantially line contact (32) extends continuously around the inside surface (30) of the necked opening (14) to form a fluid tight seal between the inside surface (30) of the necked opening (14) and the insert (18). To make the package (10), the insert (18) is driven into the necked opening (14). The tack welds (34) are formed between the necked opening (14) and the insert (18) by application of ultrasonic energy at the necked opening (14) below the line contact (32). The tack welds (34) fixedly attach the insert (18) to the necked opening (14).

REFERENCES:
patent: 3504817 (1970-04-01), Heider
patent: 3563822 (1971-02-01), Fesh
patent: 3728184 (1973-04-01), Burke
patent: 3783061 (1974-01-01), Hahn
patent: 3788509 (1974-01-01), Keeler
patent: 3947307 (1976-03-01), Buchscheidt
patent: 4088257 (1978-05-01), Devine
patent: 4140058 (1979-02-01), Ballreich et al.
patent: 4356926 (1982-11-01), Priestly
patent: 4411783 (1983-10-01), Dickens et al.

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