Drum assemblies with preformed inserts

Details Drum assemblies with preformed inserts Drum assemblies with preformed inserts

1978-03-13

1980-06-24

Pollard, Steven M.

Receptacles

Outlet or junction box type

Sectional receptacle

220 73, 220 5R, B65D 742, B65D 702

Patent

active

042091047

ABSTRACT:
A plastic drum assembly includes a preformed insert fused to at least a portion of the corner of the drum. In order to facilitate lifting and handling the drum, the insert is formed with a pair of indentations on opposite sides of a ridge. The method involves placing the preformed plastic insert across at least a portion of a corner of a mold cavity and blow molding the drum in the cavity to form the drum and fuse the drum corner to the insert. The disclosure also is concerned with methods for forming indentations in a blow molded plastic drum and with a method of reinforcing the corner of a blow molded drum.

REFERENCES:
patent: 3294271 (1966-12-01), Armbruster
patent: 3393821 (1968-07-01), Verlinden
patent: 3960474 (1976-06-01), Kader
patent: 4022345 (1977-05-01), Butz
patent: 4024979 (1977-05-01), Craig et al.
patent: 4140236 (1979-02-01), Uhlig et al.

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