Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1981-01-05
1982-12-07
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386414, B01L 302
Patent
active
043620647
ABSTRACT:
High-precision positive-displacement pipette having a nozzle with calibrated capillary channel and capable of disengageably fitting together with the free lower end of the pipette body. A piston fits tightly in the capillary channel and is controlled by a manually operable control rod equipped with a gripping device with which it grips the piston. An opening at this end of the body permits at least a part of the gripping device to pass through and come into contact with a stop provided on the inner surface of the nozzle so as to ensure the simultaneous ejection of the nozzle and of the piston which remains captive in the capillary channel.
REFERENCES:
patent: 4023716 (1977-05-01), Shapiro
patent: 4084730 (1978-04-01), Franke et al.
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