Supporting spacer for self-sealing centrifuge tubes

Details Supporting spacer for self-sealing centrifuge tubes Supporting spacer for self-sealing centrifuge tubes

1993-04-02

1995-03-07

Pollard, Steven M.

Bottles and jars

Closures

Stopper type

494 16, B04B 1500

Patent

active

053950011

ABSTRACT:
The present invention is directed to a floating cap or spacer and centrifuge tube assembly which provide adequate resistance to the deforming forces exerted on it. The exterior wall of the tube stem is provided with an annular ridge and the support spacer is provided with an annular groove which mates with the ridge on the tube stem to form an interlocking coupling.

REFERENCES:
patent: 2172544 (1939-09-01), Panter
patent: 3071316 (1963-01-01), Piemonte et al.
patent: 3265296 (1966-08-01), Mitchell
patent: 3366320 (1968-01-01), Cho
patent: 3465957 (1969-09-01), Brandt
patent: 4290550 (1981-09-01), Chulay et al.
patent: 4301963 (1981-11-01), Nielsen
patent: 4304356 (1981-12-01), Chulay et al.
patent: 4690670 (1987-09-01), Nielsen
patent: 5127895 (1992-07-01), Pawlovich

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