Blow-molded thermoplastic drum having improved integral bearing

Details Blow-molded thermoplastic drum having improved integral bearing Blow-molded thermoplastic drum having improved integral bearing

1988-02-23

1990-05-15

Hornsby, Harvey C.

Receptacles

Outlet or junction box type

Sectional receptacle

220 5R, B65D 744

Patent

active

049250493

ABSTRACT:
A blow-molded thermoplastic drum comprising a carrying and transport ring having horizontal and vertical surfaces formed integrally with the drum shell is disclosed. The end portion of the drum shell opposite the carrying and transport ring is set back in conical fashion. To allow handling with standard mechanized drum handling equipment, a wide channel is formed between the vertical contact surface of the ring and the conical section. To this end, the carrying and transport ring is connected to the conical section of the shell by a wide connecting web which forms the bottom of the channel. The web is supported by a support structure. In a first embodiment, the support structure is zig-zag. In a second embodiment, the support structure comprises radially extending projections. Passageways are located in the bottom of the channel to allow runoff of water.

REFERENCES:
patent: 2673010 (1954-10-01), Barrow
patent: 3840141 (1974-10-01), Allom
patent: 3934747 (1976-01-01), Needt
patent: 3955705 (1976-05-01), Dubois
patent: 4169537 (1979-04-01), Sabreen
patent: 4228911 (1980-10-01), Hammes
patent: 4257527 (1981-03-01), Snyder
patent: 4264016 (1981-07-01), Speas
patent: 4294374 (1981-08-01), Ames
patent: 4643323 (1987-02-01), Schutz
patent: 4674648 (1987-06-01), Przytulla
patent: 4736862 (1988-04-01), Hammes

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