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Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
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This article describes an apparatus and method of forming a flat cable comprising a plurality of conductors laminated between layers of dielectric and adhesive.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
83% of the total text.
Page 1 of 2
Drum Wound Cable
This article describes an apparatus and method of forming a flat cable
comprising a plurality of conductors laminated between layers of dielectric and
As illustrated schematically in Fig. 1, the essential elements of the apparatus
are a rotating drum 10, a lead screw 12, a spool holder 16, a wire guide 18 and a
tensioning device 20. A base dielectric material/adhesive 22 is wrapped around
the drum 10 with the adhesive side out. The base dielectric can comprise a
material such as polyimide, polyester, NOMEX*, etc., while the adhesive can be
pressure-sensitive or heat-sensitive thermosetting or thermoplastic material.
As the drum 10 rotates, wire 24 is helix wrapped to the drum at the desired
pitch as in conventional coil winding. The wire guide 18 is driven by the lead
screw 12, which in turn is coupled to the rotating drum 10. A precision lead
screw can be used to insure very accurate wire spacing, while the adhesive
surface of the base material 22 holds the wires in position by winding directly on
the pressure-sensitive base or the wire can be preheated if using thermosetting
or thermoplastic adhesive.
When the desired number of turns have been wound on the helix at the
desired pitch, the wire-wrapped base 22 is then removed and a cover coat
laminated to it. The thus formed flat cable 26, shown in Fig. 2, can be cut into
the number and size of segments desired, and the conductors 28 at each end of
the resulting cables exposed to facili...