Method of forming an ultrafine micropipette

Details Method of forming an ultrafine micropipette Method of forming an ultrafine micropipette

1985-03-21

1986-07-15

Kellogg, Arthur

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65108, 65110, C03B 2311

Patent

active

046004246

ABSTRACT:
A method of forming a micropipette by pulling one end of a glass tubing while the other end is held stationary. A portion of the tubing intermediate the ends thereof is heated and the viscosity of the glass is monitored by measuring the velocity at which the pulled end is moved. When a predetermined velocity is reached, indicating the material has softened sufficiently, the heating and pulling are both stopped. This process may be repeated until the desired pipette tip profile is achieved.

REFERENCES:
patent: 4523938 (1985-06-01), Grego
patent: 4530712 (1985-07-01), Kopf

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