Solar heat energy collecting systems and methods of making the s

Details Solar heat energy collecting systems and methods of making the s Solar heat energy collecting systems and methods of making the s

1979-04-02

1981-10-13

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

126432, 126448, 156 79, 156277, 156289, 156315, 264 52, 264512, 264338, 264DIG82, B29D 2700

Patent

active

042947863

ABSTRACT:
A method of making a solar heat energy collecting system which comprises: forming a potentially foamable, resinous base layer containing a blowing agent; applying a printing composition to the surface of the potentially foamable, resinous base layer in the form of at least one continuous path extending from one edge point to another edge point of the potentially foamable, resinous base layer, the printing composition comprising a blowing inhibitor and a release agent; applying a top surface layer to the surface of the printed potentially foamable, resinous base layer which adheres thereto except in those areas containing the blowing inhibitor and release agent; heating the potentially foamable, resinous base layer to decompose or to activate the blowing agent in those portions of the potentially foamable, resinous base layer not lying under the blowing inhibitor and release agent, whereby such portions are blown and expand to extend and stretch upwardly so as to form upright walls of foamed, relatively lower density resinous material extending substantially vertically from the main portion of the resinous base layer, while those other portions of the potentially foamable, resinous base layer lying under the blowing inhibitor and release agent remain relatively unaffected; and supplying a fluid medium to those printed areas of the potentially foamable, resinous base layer lying over the blowing inhibitor and release agent, whereby the top surface layer is moved upwardly to form at least one continuous open channel extending from one edge point of the resinous base layer to another edge point of the resinous base layer and capable of conducting a heat transfer fluid medium therethrough. The inventive concept also relates to the solar heat energy collecting systems resulting from such methods.

REFERENCES:
patent: 3161436 (1964-12-01), Hood
patent: 3293094 (1966-12-01), Nairn et al.
patent: 3293108 (1966-12-01), Nairn et al.
patent: 3428471 (1969-02-01), Tuthill et al.
patent: 3798098 (1974-03-01), Ogawa et al.
patent: 4030478 (1977-06-01), Beaver
patent: 4187131 (1980-02-01), Shortway et al.
patent: 4194491 (1980-03-01), Randall
patent: 4214028 (1980-07-01), Shortway et al.

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