Method for the production of thread-like capillaries

Details Method for the production of thread-like capillaries Method for the production of thread-like capillaries

1976-12-09

1978-03-14

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 11W, 65 32, 65 86, 425217, C03B 3702

Patent

active

040789098

ABSTRACT:
Thread-like capillary tubes are formed by spinning molten glass material through an annular orifice, blowing a gas centrally into the tube issuing from the orifice, drawing the gas filled tube away from the orifice and controlling the flow rate and pressure of the gas and the drawing rate to reduce the tubes to capillary size with a lumen, an external diameter, and a wall thickness of controlled dimensions.

REFERENCES:
patent: 3121254 (1964-02-01), Heynen et al.
patent: 3268313 (1966-08-01), Burgman et al.
patent: 3701642 (1972-10-01), Stream
patent: 3764286 (1973-10-01), Antczak et al.
patent: 3870497 (1975-03-01), Spiessens

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