Jar mounted pipettor

Details Jar mounted pipettor Jar mounted pipettor

1977-07-18

1981-06-16

Spar, Robert J.

Dispensing

With recorder, register, indicator, signal or exhibitor

Position or extent of motion indicator

222 44, 222309, 222384, G01F 1102

Patent

active

042732573

ABSTRACT:
A pipettor for threaded attachment to a liquid containing jar provides for dispensing a controllable volume of liquid with a high degree of precision upon manually operating a plunger. The liquid volume dispensed in a single plunger operation is adjusted by rotation of the plunger knob. Both a linear coarse scale and a circular fine adjustment scale are provided for accurately setting the volume to be dispensed. Positive detent stops are provided for accurate volume settings. Improved air purging and plunger locking mechanisms are also provided.

REFERENCES:
patent: 2096461 (1937-10-01), Mane et al.
patent: 3141583 (1964-07-01), Mapel et al.
patent: 3232117 (1966-02-01), Gilmont
patent: 3273763 (1966-09-01), Gilmont
patent: 3283727 (1966-11-01), Rodrigues
patent: 3327900 (1967-06-01), Goda
patent: 3430813 (1969-03-01), Gilmont
patent: 3452901 (1969-07-01), Roach
patent: 3527551 (1970-09-01), Kutik et al.
patent: 3574334 (1971-04-01), Roach
patent: 3729022 (1973-04-01), Roach
patent: 3940027 (1976-02-01), Marterer
patent: 3982899 (1976-09-01), Kelm
patent: 3987934 (1976-10-01), Reed et al.
patent: 4072247 (1978-02-01), Yamazaki
patent: 4096750 (1978-06-01), Sturm
patent: 4096751 (1978-06-01), Withers et al.
patent: 4098432 (1978-07-01), Oosterling et al.

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