US4019494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar air heater assembly
Assignee: Individual
•
Filing: 1976-08-11
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Granted: 1977-04-26
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Expires: 1996-08-11
Abstract
Abstract An improved solar heat generator incorporates a novel finned heat-absorbing and transfer plate which employs upstanding fins of relatively small length which are arranged in uniformly spaced rows across the direction of gas flow, with the fins in each row laterally displaced a constant, relatively short distance from the position of the fins in the upstream adjacent row.
Inventors
- 👤 Yahya B. Safdari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:34
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/50; F24S10/55; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
166 words
A heat exchange plate adapted for heat transfer to a stream of fluid moving in a direction generally parallel to and in contact with a face of said plate, comprising: a generally flat heat-conducting base plate; a plurality of flat thin heat-conducting fins attached to and extending outwardly from said face of said base plate; said fins being arranged in a plurality of adjacent rows transverse to the direction of fluid flow, all of the fins in a row being generally parallel to the direction of fluid flow, the lateral spacing between adjacent fins in all rows being substantially constant, each row of fins being laterally displaced in one direction from the adjacent upstream row; the lateral spacing between adjacent fins in a row being S, the length of the fins being about 0.75 S to 5.0 S, the height of the fins being about 1.0 S to 5.0 S, and the lateral displacement between fins in adjacent rows being about 0.1 S to 0.5 S.
Claim 2
Dependent Claim
166 words
A heat exchange plate adapted for heat transfer to a stream of fluid moving in a direction generally parallel to and in contact with a face of said plate, comprising: a generally flat heat-conducting base plate; a plurality of flat thin heat-conducting fins attached to and extending outwardly from said face of said base plate; said fins being arranged in a plurality of adjacent rows transverse to the direction of fluid flow, all of the fins in a row being generally parallel to the direction of fluid flow, the lateral spacing between adjacent fins in all rows being substantially constant, each row of fins being laterally displaced in one direction from the adjacent upstream row; the lateral spacing between adjacent fins in a row being S, the length of the fins being about 0.75 S to 5.0 S, the height of the fins being about 1.0 S to 5.0 S, and the lateral displacement between fins in adjacent rows being about 0.1 S to 0.5 S.
Claim 3
Dependent Claim
62 words
A heat exchange plate in accordance with claim 1, in which the lateral spacing between adjacent fins in a row is S, the length of each fin is about 1.0 S to 3.0 S, the height of each fin is about 1.375 S to 4.13 S, and the lateral displacement between fins in adjacent rows is about 0.125 S to 0.375 S.
Claim 4
Dependent Claim
15 words
A heat exchange plate in accordance with claim 2, in which said fins are rectangular.
Claim 5
Dependent Claim
21 words
A heat exchange plate in accordance with claim 3, in which S has a value of about 0.75 to 1.25 inches.
Claim 6
Dependent Claim
49 words
A heat exchange plate in accordance with claim 3, in which the length of each fin is about 1 inch, the height of each fin is about 1 inch, the spacing between adjacent fins is about 1 inch, and the lateral displacement between adjacent rows is about 0.25 inch.
Claim 7
Dependent Claim
32 words
A heat exchange plate in accordance with claim 1, in which the face of said plate opposite to that on which said fins are attached is covered with a heat-absorbent surface coating.
Claim 8
Dependent Claim
129 words
A solar heat generating panel system comprising: a first sheet of material which is transparent to solar radiant energy; a heat exchange plate in accordance with claim 1 displaced from and arranged below and generally parallel to said sheet, said fins depending from the lower surface of said plate, the upper surface of said plate being adapted to absorb and convert to heat solar radiant energy impinging thereon; a heat insulating material arranged below said heat exchange plate; support means holding said sheet, said plate, and said insulating material in spaced-apart relationship, said support means defining together with said first sheet and said insulating sheet a conduit having an inlet through which a fluid to be heated can be introduced, and an outlet through which said fluid can exit.
Claim 9
Dependent Claim
38 words
A panel system in accordance with claim 7, including a second sheet of material which is transparent to solar radiant energy, said second sheet being arranged between and spaced from said first sheet and said heat exchange plate.
Claim 10
Dependent Claim
61 words
A panel system in accordance with claim 7, in which the lateral spacing between adjacent fins in a row is S, the length of each fin is about 1.0 S to 3.0 S, the height of each fin is about 1.375 S to 4.135 S, and the lateral displacement between fins in adjacent rows is about 0.125 S to 0.375 S.
Claim 11
Dependent Claim
14 words
A panel system in accordance with claim 9, in which said fins are rectangular.
Claim 12
Dependent Claim
20 words
A panel system in accordance with claim 10, in which S has a value of about 0.75 to 1.25 inches.
Claim 13
Dependent Claim
48 words
A panel system in accordance with claim 10, in which the length of each fin is about 1 inch, the height of each fin is about 1 inch, the spacing between adjacent fins is about 1 inch, and the lateral displacement between adjacent rows is about 0.25 inch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |