Micropipette system

Details Micropipette system Micropipette system

1979-01-05

1981-02-10

Swisher, S. Clement

Measuring and testing

Measuring vessel

B01L 302

Patent

active

042494192

ABSTRACT:
A micropipette system provides one-hand operation to jettison a disposable tip assembly of pipette barrel and plunger when used, to engage and automatically calibrate a fresh tip assembly; to select aliquot setting desired from a visible scale also providing positive, tactile-click setting signals, and also by choice of automatically accommodated tip assembly diameters to provide different aliquot ranges, and to draw in and to discharge the aliquot portions chosen, by means of a mechanism comprising substantially only the elements of actuator shaft element, return and grip springs and housing; clearance shaft element, pipette barrel, vise with grip spring and plunger; and automatic calibration coacting pipette-tip packaging, except for springs, all of which may be plastic.

REFERENCES:
patent: 3494201 (1970-02-01), Roach
patent: 3815790 (1974-06-01), Allen
patent: 4023716 (1977-05-01), Shapiro
patent: 4084730 (1978-04-01), Franke et al.

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