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US 2008/0164204 A1Published application
Valve for facilitating and maintaining separation of fluids and materials
OwnerMehdi Hatamian, Mehrtosh Ghalebi +1inventors
InventorsMehdi Hatamian, Mehrtosh Ghalebi, Matin Ebneshahrashoob
Life of this patent
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Abstract
Some embodiments include a valve positioned within a test tube to maintain a separation between components of liquid with different densities after centrifugation. The valve preferably includes a cylindrically shaped housing with a conical plug configured to nest within the housing. The plug is not in contact with the housing during centrifugation, but comes into position post-centrifugation.
Claims26
A valve comprising:
- a first portion comprising a plug and a resilient spring;
- and
- a second portion comprising a valve housing having a central passage.
A valve system comprising:
- a sample container;
- a plug;
- a resilient spring;
- and
- a valve housing.
2 more elements
Dependencies are inferred from the claim text.