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US3974822: Solar heat collector


Filing Information

Inventor(s) Pandit G. Patil ·
Assignee(s) PPG Industries, Inc. ·
Attorney/Agent(s) Donald Carl Lepiane ·
Primary Examiner Kenneth W. Sprague ·
Assistant Examiner James C. Yeung ·
Application Number US5450703
Filing date 03/13/1974
Issue date 08/17/1976
Predicted expiration date 03/13/1994
U.S. Classifications 126/708  · 126/904  · 126/710  · 126/713  · 126/634  · 126/905  · 126/907  · 52/172  ·
International Classifications F24J 302  ·
Kind CodeA
International Classifications 126270;271 ·
9 Claims, No Drawings


A solar heat collector is disclosed having an outer cover plate, an intermediate cover plate and a solar radiation absorber mounted in spaced relation to each other by edge packing. The edge packing (1) removes moisture from the air space between the cover plates and absorber and (2) prevents moisture from entering the air space between the cover plates and the absorber.

Independent Claims | See all claims (9)

  1. 1. A solar heat collector, comprising:at least one cover plate capable of passing solar energy having a major surface with a predetermined transmittance coefficient greater than zero, said at least one cover plate having predetermined peripheral dimensions and shape;a solar energy absorber having peripheral dimensions and shape similar to said at least one cover plate, said absorber having conduit means for moving a heat absorbing medium therethrough and a major surface having a predetermined absorptivity greater than zero;a rigid spacer frame having peripheral dimensions and shape similar to said at least one cover plate, said spacer frame mounting marginal edge portions of the major surfaces of said at least one cover plate and said absorber to provide a compartment therebetween;desiccating means mounted in said spacer frame and communicating with the compartment to remove moisture in the compartment;a continuous layer of moisture-impervious adhesive mounting said at least one cover plate, absorber and spacer frame to prevent moisture from moving into the compartment; andsaid layer of moisture-impervious adhesive and desiccating means maintaining the compartment essentially free of moisture to prevent the decrease of the predetermined absorptivity coefficient of said absorber and predetermined transmittance coefficient of said at least one cover plate.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2566327 HALLOCK ROBERT F Hallock Sep 1951
US2684266 PITTSBURGH PLATE GLASS CO Englehart Jul 1954
US2705948 ROSTOCK GUNTHER H Rostock Apr 1955
US2902028 MANLY ARTHUR H Manly Sep 1959
US3039453 STELLA ANDRASSY Andrassy Jun 1962
US3107052 GARRISON JOEL F Garrison Oct 1963
US3176678 ENGELHARD IND INC Langley Apr 1965
US3453666 HENRY M HEDGES Hedges Jul 1969
US3758996 PPG INDUSTRIES INC Bowser Sep 1973

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
UK938012Sep 1963
SU282819Oct 1971

Other Publications

Physka Status, Solidi, vol. 14, 1966, pp. 69-75.
Tabor, H., "Selective Radiation" , Bull. Res. counc. of Israel, vol. 5A, 1956 pp. 119-128.

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
FR2373020 STARS SPA Jun 1978
US8561603 --
US8622055 --
US8695586 --
US8875696 --
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US4122829 Wallace A. Lowe et al. Oct 1978
US6079170 Henk Slebos Jun 2000

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