Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1996-03-06
1999-02-02
Pyon, Harold Y.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 81, 422101, 422102, 436177, 436 45, 7386321, 7386434, 210294, 2105121, 210302, G01N 930
Patent
active
058660712
ABSTRACT:
A new type of centrifuge tube convenient for separation after density gradients centrifugation is invented. The inner bottom of the centrifuge tube is in a funnel shape, and an orifice is located at the narrowest place of the funnel neck. The orifice connects to a small tube, which is built inside the centrifuge tube wall and spanning the entire length of the centrifuge tube. The centrifuge tube can be used either as a centrifuge tube or a separation funnel. Such a tube not only saves time but also improves the efficiency of separation after density gradients centrifugation, because the built-in small tube is capable of performing separation by means of siphonic effect.
REFERENCES:
patent: 4003834 (1977-01-01), Coombs
patent: 4346608 (1982-08-01), Olenick et al.
patent: 5284773 (1994-02-01), Kilkarni et al.
patent: 5393674 (1995-02-01), Levine et al.
patent: 5562823 (1996-10-01), Reeves
patent: 5575914 (1996-11-01), Jeyendran
National Science Council
Pyon Harold Y.
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