Method for coating a filament

Details Method for coating a filament Method for coating a filament

1999-07-29

2000-05-23

Beck, Shrive

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

427165, 427166, 427282, B05D 506

Patent

active

060663618

ABSTRACT:
A method of coating a surface of a filament. In particular, the invention rotates a member (13) about a first axis (54), which will rotate a tubular member (16), which is rotatably coupled to the rotating member at an angle to the first axis, through a plane and about a longitudinal axis (56) of the tubular member that is co-planer to the plane. This is done to assist in the depositing of a uniform material onto the filament that extends through the tubular member and through a deposition area (40). It is important for the method to maintain the deposition area at an intersection of the first axis, longitudinal axis and plane, while the filament is being rotated in step. The method provides for adjusting the deposition area to expose a different length of the filament to the deposition of material thereon. Additionally, the method further comprises the steps of: un-winding a length of the filament that is in a feed basket coupled to one end of the tubular member; feeding the filament length through the tubular member; and collecting the filament length in a receiving basket that is coupled to another end of the tubular member. It is noted that there is a step of rotating a traction wheel, which is fixedly coupled about the tubular member at an end opposite to where the tubular member is rotatably coupled to the rotating member, about the longitudinal axis to cause the tubular member to rotate through the plane and about the co-planer longitudinal axis. Wherein the traction wheel runs along a top surface of a circular wall that is located equal distant about the first axis.

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