Plastic bucket defining annular inwardly projecting ridge and me

Details Plastic bucket defining annular inwardly projecting ridge and me Plastic bucket defining annular inwardly projecting ridge and me

1980-12-30

1983-03-08

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By differential gas pressure ejecting means

425556, B29C 700

Patent

active

043759483

ABSTRACT:
A plastic bucket having a lip which defines means for engaging a bucket lid in sealing relation. The interior wall of the bucket defines an annular, inwardly projecting ridge spaced from the lip. The ridge extends around the inner circumference of the bucket, and defines an annular, inwardly pointed apex, to provide increased hoop strength to the bucket adjacent to its mouth and to provide an internal brush wiping member within the bucket.

REFERENCES:
patent: 2629897 (1953-03-01), Mohla
patent: 2929105 (1960-03-01), Starck
patent: 3008181 (1961-11-01), Fitz
patent: 3183292 (1965-05-01), Dvoracek
patent: 3183551 (1965-05-01), Johnson
patent: 3695805 (1972-10-01), Gilbert
patent: 3733384 (1973-05-01), Gerlovich et al.
patent: 3825378 (1974-07-01), Dart
patent: 3892512 (1975-07-01), Diehl
patent: 3919374 (1975-11-01), Komendowski
patent: 3950468 (1976-04-01), Rainville
patent: 3969060 (1976-07-01), Rosenkranz et al.
patent: 4125246 (1978-11-01), von Holdt

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