Blow molded barrel of thermoplastic synthetic resin material

Details Blow molded barrel of thermoplastic synthetic resin material Blow molded barrel of thermoplastic synthetic resin material

1989-08-01

1990-10-16

Moy, Joseph Man-Fu

Receptacles

Receptacle side wall made of two or more layers of material...

Beverage receptacle

220 85K, B65D 742

Patent

active

049628631

ABSTRACT:
A blow molded barrel having its peripheral top and bottom walls formed unitarily from thermoplastic synthetic resin has at least a lifting and transport ring formed at its upper edge at the junction of the top wall and the peripheral wall and welded to the barrel body. The ring has a trapezoidal head which is at least limitedly elastic and is connected to the weld flange by an intermediate region which is also at least limitedly elastic to reduce the transmission of shock and thereby improve the life of the well junction between the ring and the barrel body.

REFERENCES:
patent: 3348722 (1967-10-01), Trevarrow, Jr.
patent: 3349940 (1967-10-01), Cornelius
patent: 3747799 (1973-07-01), Atkinson
patent: 3840141 (1974-10-01), Allom et al.
patent: 4022345 (1977-05-01), Butz
patent: 4140236 (1979-02-01), Uhlig
patent: 4372458 (1983-02-01), Carlson
patent: 4625881 (1986-12-01), Carlson

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