Process for producing electrostatic clad conduit innerduct liner

Details Process for producing electrostatic clad conduit innerduct liner Process for producing electrostatic clad conduit innerduct liner

1995-01-27

1997-10-28

Beck, Shrive

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

427483, 427486, 427236, 427371, B05D 104, B05D 106, B05D 722

Patent

active

056816235

ABSTRACT:
An electrostatically clad conduit innerduct liner and method for making the innerduct are disclosed, The process includes, heating the innerduct to a temperature less than melting point of the innerduct or a powder to be coated on the inner surface of the innderduct, The powder to be coated is electrically charged and applied to the innerduct by spraying from a nozzle having a different polarity than the innerduct to provide a substantially uniform coating.

REFERENCES:
patent: 2781279 (1957-02-01), Miller
patent: 3850660 (1974-11-01), Inamura et al.
patent: 4468003 (1984-08-01), Nonclercq et al.
patent: 5241880 (1993-09-01), Mizobata et al.
patent: 5472746 (1995-12-01), Miyajiwa et al.

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