Flat solar collector
Abstract
Abstract A flat solar collector arrangement used for collecting solar energy in which a metal tub serving as a carrier and made by a deep-drawn process, is filled with synthetic material. A heat carrier channel system and a collector plate are located on top of the synthetic material. A protective disk is connected by a rubber gasket ring to an edge of the metal tub, and a bellows-shaped device in the metal tub between the collector plate and the protective disk is used for influencing the enclosed volume. The metal tub may be made of galvanized sheet iron, and the upper rim of the metal tub is drawn outward, parallel to the bottom of the tub. The synthetic material, furthermore, may be in the form of a flaky styropor mass which serves as heat insulating material. The channel system and the collector plate are integrated as a single one-plate system. The metal tub, furthermore, has at least one opening which is closed by means of the bellows-shaped device, and is directed inward or outward.
Inventors
- 👤 Johann Lorenz
Bibliographic Details
Claims Analysis
Total Claims: 11References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |