Lipoprotein rotor lid

Details Lipoprotein rotor lid Lipoprotein rotor lid

1978-02-22

1980-05-13

Krizmanich, George H.

Chemistry: physical processes

233 26, 233 27, B04B 702, B04B 708

Patent

active

042024870

ABSTRACT:
A rotor apparatus utilizing a lid having an enlarged rim portion which under centrifugally induced forces will move into close sealing contact with the lower portion of the rotor. The lid portion of the rotor is a generally flat circular disc with the thicker rim portion of greater mass located around the periphery of the circular disc. The slight deflection of the lid during centrifugation provides an automatic increase in the seal between the lid and the lower portion of the rotor as the rotational speed increases. The automatic tightening feature enables the user to merely hand tighten the lid onto the lower portion of the rotor without having to use some type of mechanical advantage tool. The lid has a relatively large diameter and contains no holes in order to reduce possible material stress in the lid during centrifugation. The lid is threadably connected to the lower portion of the rotor by a depending stud projecting from the bottom surface of the lid.

REFERENCES:
patent: 2876949 (1959-03-01), Skarstrom
patent: 3028075 (1962-04-01), Blum
patent: 3344984 (1967-10-01), Kopczynski
patent: 3366320 (1968-01-01), Cho
patent: 3567113 (1971-03-01), Stansell et al.
patent: 3819111 (1974-06-01), Romanauskas et al.
patent: 3843045 (1974-10-01), Schmidt
patent: 3901434 (1975-08-01), Wright
patent: 3955755 (1976-05-01), Breillatt et al.

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