Bottles and jars – Closures – Stopper type
Patent
1994-12-01
1996-05-21
Castellano, Stephen J.
Bottles and jars
Closures
Stopper type
215 46, 215356, B65D 3908
Patent
active
055181309
ABSTRACT:
A generally cylindrical, open topped, container for use in a centrifuge instrument has a seal ring disposed in a circumferentially extending groove provided on the interior surface of the container. At least one generally axially extending channel is formed in the interior surface of the container with a first end of the channel communicating with the groove. The intersection of the channel with the groove exposes a portion of the seal ring whereby an implement, such as the tingemail of an operator, may engage the seal ring, thereby to facilitate the removal of the seal ring from the groove.
REFERENCES:
patent: 1911354 (1933-05-01), De Long
DuPont Company Catalog, Rotors, Tubes, Bottles, and Adapters for Sorvall Centrifuges, cover and p. 7, Dec. 1, 1984 and Drawing No. 00624-4 and 00625-5.
Castellano Stephen J.
E. I. Du Pont de Nemours and Company
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