Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1984-03-12
1986-02-04
Spitzer, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
422100, G01N 114
Patent
active
045677808
ABSTRACT:
A hand-held manually operated pipette having an adjustable plunger stroke and calibrated electronic digital volumetric display draws-up and dispenses viscous, dense or high vapor pressure liquids by means of an easily replaced, disposable, integral, positive displacement type plunger tip and capillary assembly. The pipette in another form utilizes a disposable air displacement capillary. The plunger adjustably strokes to a first stop in a first mode for calibration or sample draw-up and dispensing with the volume of pipette liquid contents continuously displayed. In a second mode an over-travel arrangement enables the plunger shaft to stroke beyond the first stop to permit collet type attachment and ejection of the integral plunger tip and capillary for positive displacement service or to eject an air displacement capillary.
REFERENCES:
patent: 3757585 (1973-09-01), Heller
patent: 3827305 (1974-08-01), Gilson et al.
patent: 3918308 (1975-11-01), Reed
patent: 4054062 (1977-10-01), Branham
patent: 4084730 (1978-04-01), Franke et al.
patent: 4086062 (1978-04-01), Hach
patent: 4096750 (1978-06-01), Sturm
patent: 4096751 (1978-06-01), Withers et al.
patent: 4229413 (1980-10-01), d'Autry
patent: 4362063 (1982-12-01), d'Autry
patent: 4395921 (1983-08-01), Oppenlander
patent: 4399712 (1983-08-01), Oshikubo et al.
patent: 4435989 (1984-03-01), Meyer et al.
patent: 4442722 (1984-04-01), Meyer
patent: 4470317 (1984-09-01), Sabloewski et al.
patent: 4487081 (1984-12-01), De Vaughn et al.
patent: 4489618 (1984-12-01), Meyer
Karne Benn
Koball Bruce R.
Oppenlander Jon E.
Shackelford Carl L.
American Hospital Supply Corporation
Mitchell James F.
Spitzer Robert
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