Window burner for polymer coated capillary columns

Details Window burner for polymer coated capillary columns Window burner for polymer coated capillary columns

1989-04-24

1990-07-10

Walberg, Teresa J.

Electric heating

Heating devices

219221, H05B 302

Patent

active

049408836

ABSTRACT:
A window burner for creating windows by selective removal of polymer type coatings from capillary columns and very small diameter tubes. The burner includes an electric circuit which provides a predetermined, controlled current from a standard 120 or 220 volt AC outlet. The predetermined, controlled current electrically heats a resistive wire for a predetermined period of time. The resistive wire may have a predetermined configuration to facilitate mounting of the capillary column for selective burning. The size of the resistive wire and the predetermined period of time during which the predetermined, controlled current is provided thereto are factors determining the size of the window formed by selectively burning off the polymer coating.

REFERENCES:
patent: 2192096 (1940-02-01), Watts
patent: 2396594 (1946-03-01), Moore
patent: 3041439 (1962-06-01), Sisk
patent: 3985996 (1976-10-01), Fischer

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