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US4492424A Expired / Lapsed US ⏱️ 0.0 years remaining

Solar collector

Assignee: Individual
•
Filing: 1981-07-10
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Granted: 1985-01-08
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Expires: 2001-07-10
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Abstract

Abstract The disclosure is a solar collector consisting of glass rods enclosed in a housing and mounted vertically on a roof or other elevated place to gather solar rays. The collector is fixed, with no tracking device or other moving parts. The glass rods are 6 mm or smaller in diameter, and there can be several thousand, depending on the sizes of the rods and collector. The upper ends of the rods are inclined at an angle of thirty degrees from horizontal, with the inclined surfaces occupying a plane which faces south so as to obtain maximum exposure to the winter sun. Solar rays striking the inclined ends of the rods are refracted into the rods. The rays travel down through the rods, with a predominantly parallel path of propagation being established by repeated reflections off the inside walls of the rods. The rays are emitted from the lower perpendicular ends of the rods as parallel rays of incoherent light which are directed into beam concentrators.

Inventors

  • 👤 John E. Clegg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 22:28
CPC Classifications
G; G02; G02B; G02B19/00; G02B19/0004; G02B19/0028; F; F24; F24S; F24S23/00; F24S23/12; G02B19/0033; G02B19/0038; G02B19/0042; G02B6/00; G02B6/04; G02B6/06; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S385/00; Y10S385/90

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 113 words
A solar collector comprising vertical glass rods enclosed in a housing under a plate glass cover, with the glass rods being of a relatively large diameter of one to six millimeters, with the exposed upper ends of the glass rods being uniformally inclined from horizontal, with the exposed inclined upper ends of the glass rods occupying a common plane, with the lower ends of the glass rods being perpendicular to the vertical axes of the glass rods and occupying a horizontal plane, with the glass rods being supported at their lower ends by a horizontal plate glass base; as a means of receiving, refracting and transmitting parallel solar rays in a vertical direction.
Claim 2
Dependent Claim 113 words
A solar collector comprising vertical glass rods enclosed in a housing under a plate glass cover, with the glass rods being of a relatively large diameter of one to six millimeters, with the exposed upper ends of the glass rods being uniformally inclined from horizontal, with the exposed inclined upper ends of the glass rods occupying a common plane, with the lower ends of the glass rods being perpendicular to the vertical axes of the glass rods and occupying a horizontal plane, with the glass rods being supported at their lower ends by a horizontal plate glass base; as a means of receiving, refracting and transmitting parallel solar rays in a vertical direction.

References Cited (Backward Citations)

US3780722A Cited
US3874783A Cited
JPS5215339A Cited
US3970070A Cited
US4201197A Cited
US4297000A Cited
US4307936A Cited
US4375380A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-01-08 1988-07-09 1989-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-01-08 1992-07-09 1993-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-01-08 1996-07-09 1997-01-08 $7700.00 Window Closed / Lapsed

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