Method for producing glass tubing of a narrowed diameter

Details Method for producing glass tubing of a narrowed diameter Method for producing glass tubing of a narrowed diameter

1988-08-08

1989-05-09

Kellogg, Arthur

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65110, 65271, 65283, C03B 2311

Patent

active

048285994

ABSTRACT:
The method of the present invention consists of the steps of heating an area along the length of a small diameter glass tube while the tube is being rotated, pulling the heated tube using an unidirectional force to rapidly extend the heated area while mechanically maintaining the heat source centrally located along the portion of the tubing being extended. The extended tubing is subsequently cooled and separated at the narrowed portion to produce two capillary tubes.

REFERENCES:
patent: 3091105 (1963-05-01), Morrill
patent: 3249414 (1966-05-01), Hamilto
patent: 3427143 (1969-02-01), Deery et al.
patent: 3907536 (1975-09-01), Achener
patent: 4010022 (1977-03-01), Schul

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