Patent US4372027A successfully refreshed from Google Patents.
US4372027A
Expired / Lapsed
US
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Method of manufacturing parabolic trough solar collector
Assignee: Solar Kinetics Inc
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Filing: 1981-06-26
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Granted: 1983-02-08
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Expires: 2001-06-26
Abstract
Abstract An improved monocoque parabolic solar collector which can be machine welded or fastened with rivets, bolts or other mechanical fasteners without the need for any blind fastening systems.
Inventors
- 👤 Joseph A. Hutchison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:44
CPC Classifications
F; F24; F24S; F24S23/00; F24S23/70; F24S23/74; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S359/00; Y10S359/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49355; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/49947; Y10T29/49954; Y10T29/49956; Y10T29/49963
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A method for assembling monocoque stressed parabolic solar collectors comprising the steps of: (a) form fitting by stretching a plurality of interior parabolic mirror channels to the surface of a male mold fixture with sides of the channels extending upwardly; (b) positioning a parabolic bow at each side of each interior parabolic mirror channel and fastening said bows to said sides of said stretched channels to form an integral unit; (c) stretching and positioning an exterior parabolic channel spaced above each of said interior parabolic mirror channels and between each pair of parabolic bows; (d) attaching said stretched exterior parabolic channels to said parabolic bows to form a stressed module; (e) attaching edge channels to the longitudinal edges of said module by attaching said edge channels to the ends of each parabolic bow abutting said edge channels.
Claim 2
Independent Claim
137 words
A method for assembling monocoque stressed parabolic solar collectors comprising the steps of: (a) form fitting by stretching a plurality of interior parabolic mirror channels to the surface of a male mold fixture with sides of the channels extending upwardly; (b) positioning a parabolic bow at each side of each interior parabolic mirror channel and fastening said bows to said sides of said stretched channels to form an integral unit; (c) stretching and positioning an exterior parabolic channel spaced above each of said interior parabolic mirror channels and between each pair of parabolic bows; (d) attaching said stretched exterior parabolic channels to said parabolic bows to form a stressed module; (e) attaching edge channels to the longitudinal edges of said module by attaching said edge channels to the ends of each parabolic bow abutting said edge channels.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein said parabolic bows are fastened to said interior parabolic mirror channels and said exterior parabolic channels by an automated fastening means.
Claim 4
Dependent Claim
15 words
The process of claim 2 wherein said automated fastening means is a machine operated welder.
Claim 5
Dependent Claim
23 words
The process of claim 2 wherein said automated fastening means employs mechanical fasteners selected from the group consisting of screws, bolts, and rivets.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |