Abstract: A solar heating panel for collecting solar heat energy and method for making same having a heat insulative substrate with a multiplicity of grooves and structural supporting ribs formed therein covered by a thin, flexible heat conductive film to form fluid conducting channels which in turn are connected to manifolds from which fluid is directed into the channels and heated fluid is removed therefrom.

Abstract: There is disclosed a method for producing an electrical circuit board comprising the steps of selectively treating a portion of a conductive metal sheet in a pattern substantially corresponding to a predetermined printed circuit configuration and in a manner which renders the pattern portion of the sheet essentially adherent to a resin, placing the treated pattern portion of the sheet in direct contact with a layer of resin on the surface of an insulating substrate to form an assembly, uniformly heating the assembly to an elevated temperature to selectively bond the substrate to the treated pattern portion of the sheet, cutting the sheet along the perimeter of the pattern portions and stripping the non-pattern portions of the sheet from the substrate to form a circuit board.

Abstract: A method and apparatus for insulating a plurality of electrically conductive elements and to produce electrical cable where the method includes heating the unformed insulative material and conductive elements, applying pressure and simultaneously removing heat with a pair of rollers at a relatively low temperature and applying pressure and heat to preselected regions only of the insulative material. The method and apparatus further allow preselected portions of the cable to be unbonded so as to facilitate access to the conductive elements by simply interrupting the application of pressure to the preselected portions. The heat, press and cool and press and bond method may also be accomplished in a step and repeat process using presses to insulative flexible circuits. The above method and apparatus provide more reliable bonding at an accelerated rate of production.

Abstract: A method and apparatus for insulating a plurality of electrically conductive elements and to produce electrical cable where the method includes heating the unformed insulative material and conductive elements, applying pressure and simultaneously removing heat with a pair of rollers at a relatively low temperature and applying pressure and heat to preselected regions only of the insulative material. The method and apparatus further allow preselected portions of the cable to be unbonded so as to facilitate access to the conductive elements by simply interrupting the application of pressure to the preselected portions. The heat, press and cool and press and bond method may also be accomplished in a step and repeat process using presses to insulative flexible circuits. The above method and apparatus provide more reliable bonding at an accelerated rate of production.