Abstract:
METHOD OF CONTINUOUSLY PRODUCING INDEFINITE LENGTHS OF FLEXIBLE FLAT MULTIPLE ELECTRICAL CONDUCTORS FROM A WEB WHEREIN PARTS OF THE CONDUCTORS ARE EXPOSED FOR ELECTRICAL CONNECTIONS, THE METHOD INCLUDING THE PROVISION OF A CONTROL BAND WHICH IS SENSED TO CONTROL THE ALIGNMENT OF THE WEB AND TO CONTROL THE ACCURATE COATING OF THE CONDUCTORS TO PROVIDE A PREDETERMINED EXPOSED CONDUCTOR PATTERN.
Abstract:
METHOD OF DEPOSITING RESIST ON A CONTINUOUSLY MOVING WEB OF CONDUCTOR METAL FOIL BACKED BY FLEXIBLE DIELECTRIC MATERIAL WHEREIN A RESIST PATTERN IS DEPOSITED ON THE FOIL AT ONE STATION AND A DIFFERENT RESIST PATTERN IS DEPOSITED ON THE FOIL AT ANOTHER STATION, FROM WHICH WEB AN INDEFINITED LENGTH OF FLAT FLEXIBLE CABLE AND CIRCUITS IS FORMED BY ETCHING THE FOIL, THE SELECTION OF RESIST DEPOSITION BEING CONTROLLED BY SENSING OF PREVIOUSLY FORMED CONTROL INDICIA IN THE FORM OF OPENINGS, SUCH AS NOTCHES OR HOLES, LOCATED ALONG THE WEB AT A PREDETERMINED TRANSVERSE POSITION ON THE WEB.
Abstract:
APPARATUS FOR AND A METHOD OF PRODUCING INDEFINITE LENGTHS OF FLEXIBLE FLAT CIRCUITRY, SUCH AS FLEXIBLE FLAT CABLE HAVING ONE OR MORE ELECTRICAL CONDUCTORS FORMING CIRCUIT PATHS BETWEEN TWO INSULATORY LAYERS WITH OPENINGS IN PREDETERMINED LOCATIONS OF ONE INSULATORY LAYER FOR ATTACHMENT OF TERMINALS, ETC. A SHEET OF INSULATORY MATERIAL HAVING FLAT ELECTRICAL CONDUCTORS ON ONE OF ITS SURFACES IS PASSED THROUGH ONE COATING STATION AT WHICH A LAYER OF INSULATORY MATERIAL IS APPLIED TO SELECTED LENGTHS OF THE CIRCUITRY. THE SHEET IS ALSO PASSED THROUGH ANOTHER COATING STATION AT WHICH INSULATORY MATERIAL IS APPLIED TO OTHER LENGTHS OF THE CIRCUITRY AT WHICH INSULATION IS DESIRED, LEAVING UNCOATED SELECTED LOCATIONS OF THE CONDUCTOR TO PROVIDE OPENINGS FOR ATTACHMENT OF CONNECTORS AND OTHER TERMINATING AND INTERCONNECTING DEVICES.