Bung hole assembly

Details Bung hole assembly Bung hole assembly

1977-02-10

1978-09-19

Price, William

Receptacles

Closures

Removable closure guided in rotary movement

220254, 220307, 220323, 220 72, B65D 4104, B65D 5118, B65D 3900

Patent

active

041147790

ABSTRACT:
An improved closure assembly for plastic drums is provided which includes female buttress threads formed on a tubular projection of the drum head, and an adaptor inserted into the tubular projection threadably engaging the buttress threads, the adaptor having internal standard pipe threads adapted to receive standard pipe threaded members, like dispensing valves, pump fittings, as well as standard bung plugs. Means are also provided for sealingly isolating the buttress thread inter-engagement to prevent product accumulation therebetween and means are also provided for locking engagement of the adaptor and the tubular projection on the drum.

REFERENCES:
patent: 1986061 (1935-01-01), Hill
patent: 2811768 (1957-11-01), Axelson
patent: 2962185 (1960-11-01), Starr et al.
patent: 3173569 (1965-03-01), Craig
patent: 3432069 (1969-03-01), Craig
patent: 3647110 (1972-03-01), Hammes
patent: 3815776 (1974-06-01), McMillan
patent: 3889839 (1975-06-01), Simon et al.
patent: 3986634 (1976-10-01), Smith et al.

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