Bottles and jars – Closures – Cap type
Patent
1988-05-09
1989-07-25
Norton, Donald F.
Bottles and jars
Closures
Cap type
215344, 215DIG1, B65D 5300
Patent
active
048504971
ABSTRACT:
An improved linerless plastic closure for large mouthed bottles and jars includes a plurality of ribs, at least one of which is wavy, projecting downwardly from the undersurface of the closure so as to contact the upper edge of the bottle or jar mouth. The wavy ribs give better surface contact with the upper edge of the bottle than conventional circular ribs.
REFERENCES:
patent: 3160303 (1964-12-01), Healy
patent: 3844439 (1974-10-01), Demers et al.
patent: 4673096 (1987-06-01), Towns et al.
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