Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Patent
1993-06-01
1994-12-27
Owens, Terry J.
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
427 96, 427256, 118410, 425105, B05D 306
Patent
active
053764145
ABSTRACT:
Extrusion apparatus and method includes a chamber of alterable volume having an outlet and a vent in a movable wall of the chamber to facilitate sealing the chamber upon application of force to the movable wall to displace viscous, fluid composition from within the chamber through the outlet and along a desired path. After displacement of a volume of the composition from the chamber, the vent is relieved to promote expansion of the composition within the chamber through the vent rather than through the outlet. The composition may be cured to substantially non-fluid condition along the desired path in response to applied thermal and/or ultraviolet radiant energy to provide traces of selected electrical properties on a work surface. The composition may be formulated, mixed and loaded into the chamber without compressible gas-filled pockets or voids in the volume of such composition that is confined within the chamber, thereby preserving direct correlation between the volume of the composition displaced from the chamber and the uniform width and thickness of an extruded trace.
REFERENCES:
patent: 4622239 (1986-11-01), Schoenthaler et al.
patent: 4635827 (1987-01-01), Roedig
patent: 4999136 (1991-03-01), Su et al.
Willard, L. A., "Positive Placement Dispenser", IBM Technical Disclosure Bulletin, vol. 18, No. 1 (Jun. 1975) p. 66.
Bell Adam J.
Breeden Philip J.
Diamant Joram
Lewandowski Edmund S.
Owens Terry J.
Smith A. C.
Sophia Systems Co., Ltd.
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