Pipette

Details Pipette Pipette

1993-06-22

1995-01-24

Noland, Thomas P.

Measuring and testing

Sampler, sample handling, etc.

Capture device

436180, G01N 114, B01L 302

Patent

active

053833724

ABSTRACT:
A pipette has a first and second piston to provide for a precise dose measurement and delivery, and a second dose which can be an air blowout to fully expel the precise measured first dose. Preferably, two pistons used are of different diameter with a difference in diameters permitting precise measurement of small doses of, for example, 10 microliters or less.

REFERENCES:
patent: 3646817 (1972-03-01), Hinchman et al.
patent: 3933048 (1976-01-01), Scordato
patent: 3935734 (1976-02-01), Keegan
patent: 4036064 (1977-07-01), Hydo
patent: 4061037 (1977-12-01), Keegan
patent: 4076503 (1978-02-01), Atwood et al.
patent: 4111051 (1978-09-01), Tamm et al.
patent: 4133211 (1979-01-01), Sarstedt
patent: 4304138 (1981-12-01), Tervamaki
patent: 4905526 (1990-03-01), Magnussen Jr. et al.
patent: 4941808 (1990-07-01), Qureshi et al.

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