Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1981-04-17
1983-11-01
Lowrance, George F.
Receptacles
Outlet or junction box type
Sectional receptacle
220 73, 220 85P, 220DIG1, B65D 146, B65D 636, B65D 2522
Patent
active
044126280
ABSTRACT:
A drum apparatus includes an injection-molded or extruded rim member formed into a ring shape and permanently attached to a blow-molded thermoplastic drum body around the top portion of the drum adjacent to the sidewall section of the drum body. The rim member includes an inwardly, radially projecting annular protuberance which is juxtaposed adjacent an annular groove in the drum just below the top of the drum. The rim member is attached to the drum while the rim member is at an elevated temperature by positioning the rim around the drum. As the temperature of the rim member decreases, the diameter of the rim member decreases causing the annular protuberance to seat into the drum's annular groove. The rim member also has a grasping beak which provides an outwardly extending support lip, a top edge providing a stacking ridge which is positioned vertically over the sidewall of the drum, and an annular seizing surface facing radially inwardly. A short chain hoist groove is formed in the bottom of the drum.
REFERENCES:
patent: 3985257 (1976-10-01), Shaffer
patent: 4018468 (1977-04-01), Lundquist
patent: 4022345 (1977-05-01), Butz
patent: 4140236 (1979-02-01), Uhlig
patent: 4149648 (1979-04-01), Uhlig
patent: 4209104 (1980-06-01), Speas
Born Free Plastics, Inc.
Lowrance George F.
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