Liquid dispensing pipette and stirrer device

Details Liquid dispensing pipette and stirrer device Liquid dispensing pipette and stirrer device

1983-05-09

1986-01-07

Rolla, Joseph J.

Coating implements with material supply

Including means for dispensing material directly to work...

Blade-like or pad-like tool

401266, 401183, 401184, 222192, 222209, 222420, B65D 4718

Patent

active

045631042

ABSTRACT:
A disposable liquid dispensing pipette and method of making same which delivers an accurate and uniform drop of liquid of a given size and which incorporates an integral paddle stirrer, so that a chemical or biological sample can be dispensed and spread or mixed before disposing of the device. The device comprises a hollow drawing and dispensing tube connected to a flexible and resilient bulb and paddle stirrer. The open end of the tube can be made in various sizes (i.e. outside diameter) to accommodate different drop size required. The device can be fabricated inexpensively, such as by molding from polyethylene which is generally hydrophobic, non-toxic and inert to most chemicals found in a clinical laboratory.

REFERENCES:
patent: 2517027 (1950-08-01), Rado
patent: 3276639 (1966-10-01), Lancaster
patent: 3811603 (1974-05-01), Felton
patent: 3834241 (1974-09-01), Garren
patent: 4118195 (1978-10-01), Beach
patent: 4212204 (1980-07-01), St. Amand

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