Stopper for containers for use in analyses

Details Stopper for containers for use in analyses Stopper for containers for use in analyses

1983-06-15

1985-05-07

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

215307, 215355, 220367, 422102, B65D 5116, B65D 3900

Patent

active

045157529

ABSTRACT:
A stopper for containers for use in analyses including a resilient body having a cavity closed by a perforatable transverse wall provided with slits defining segments. The slits allow for the opening of the stopper when a tubular member is inserted in the cavity and closing the stopper when the segments return to the initial position thereof. The cavity is provided with a plurality of longitudinal ribs adapted for defining passages for air between the body and the tubular member. The stopper may slide within the container.

REFERENCES:
patent: 91899 (1869-06-01), Beaumont
patent: 2436291 (1948-02-01), Daniel
patent: 3288318 (1966-11-01), Corbin et al.
patent: 3850174 (1974-11-01), Ayres
patent: 3948261 (1976-04-01), Steiner
patent: 4000739 (1977-01-01), Stevens
patent: 4134512 (1979-01-01), Nugent

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