Tube and stopper combination with venting structure

Details Tube and stopper combination with venting structure Tube and stopper combination with venting structure

1977-11-01

1980-05-27

Stouffer, Richard T.

Bottles and jars

Closures

Receptacle interior communicable with exterior with closure...

128764, A61B 1000, B65D 4120, B65D 5116

Patent

active

042046068

ABSTRACT:
An evacuated blood-sampling tube has a stopper with a skirt which fits over the open end of the tube. The stopper can be displaced to a venting position, in which an axial groove in the skirt communicates the interior of the tube with the exterior, to facilitate processing of the tube sample, including pipetting, with the tube stoppered. The tube may have a bead which engages one annular groove in the stopper to provide a sealing fit and another annular groove in the stopper skirt to define the venting position.

REFERENCES:
patent: 3901402 (1975-08-01), Ayres
patent: 3948261 (1976-04-01), Steiner
patent: 4076142 (1978-02-01), Naz

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