Cover assembly for a drum composed of synthetic resin

Receptacles – Closures – Having means for securing or retaining closure in its closed...

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Details

220 73, B65D 4532, B65D 148

Patent

active

048801380

ABSTRACT:
A blow-molded drum body has a cover fitted over this neck and provided with an outer wall with a shoulder clamped against a connecting ring affixed to the body during the blow-molding thereof. The T-section ring has an upper flange overlapped by the cover and a lower flange which is thicker than its upper body so that a clamping ring fitting over the shoulder and the web of the connecting ring can bear upon the overlapping region of the outer wall of the cover and hence indirectly upon the upper flange, but directly upon the lower flange.

REFERENCES:
patent: 2655397 (1953-10-01), Augspurger
patent: 3343711 (1967-09-01), Gotshalk
patent: 4022345 (1977-05-01), Butz
patent: 4177934 (1979-11-01), Hammes
patent: 4219125 (1980-08-01), Wiltshire
patent: 4500010 (1985-02-01), Schutz
patent: 4768673 (1988-09-01), Prztulla

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