US4059146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system with a thermal pump
Assignee: IDC System AG
•
Filing: 1975-11-26
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Granted: 1977-11-22
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Expires: 1995-11-26
Abstract
Abstract A heating system with a thermal pump including an evaporator section consisting of a piping network buried in the ground. The piping network is shielded by a translucent screen arranged above the ground such to prevent a heat loss of the ground and to form a space for heat storage between screen and ground.
Inventors
- 👤 Emil Gruniger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:54
CPC Classifications
F; F28; F28D; F28D20/00; F28D20/0052; F24; F24D; F24D11/00; F24D11/02; F24S; F24S10/00; F24S10/70; F24V; F24V50/00; Y; Y02; Y02B; Y02B10/00; Y02B10/70; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In a heating system with a thermal pump, including an evaporator section consisting of a piping network buried in the ground, a compressor for compressing the evaporated working fluid, a condensing section operating as heating plant, and a translucent screen for shielding the ground against the atmosphere, such that a heat storage of the heat radiated from the sun and penetrated through the screen is provided and the space defined between the ground surface and the screen forms an insulation against heat loss to the atmosphere, said screen being a sheet-like material with perforations for discharging any accumulated water thereon, the improvement comprising that the distance between adjacent buried pipes of said piping network is less than 80 centimeters and the depth of the buried pipes of said piping network is less than 80 centimeters.
Claim 2
Dependent Claim
135 words
In a heating system with a thermal pump, including an evaporator section consisting of a piping network buried in the ground, a compressor for compressing the evaporated working fluid, a condensing section operating as heating plant, and a translucent screen for shielding the ground against the atmosphere, such that a heat storage of the heat radiated from the sun and penetrated through the screen is provided and the space defined between the ground surface and the screen forms an insulation against heat loss to the atmosphere, said screen being a sheet-like material with perforations for discharging any accumulated water thereon, the improvement comprising that the distance between adjacent buried pipes of said piping network is less than 80 centimeters and the depth of the buried pipes of said piping network is less than 80 centimeters.
Claim 3
Dependent Claim
22 words
In a heating system according to claim 1, wherein said screen is divided into a plurality of plate sections forming passages therebetween.
Claim 4
Dependent Claim
25 words
In a heating system according to claim 1, wherein said screen is formed of rigid plate-like material being pivotably mounted along one of its margins.
References Cited (Backward Citations)
US1130870A
Cited
US2428876A
Cited
US2780415A
Cited
US2749724A
Cited
US3077190A
Cited
US3072920A
Cited
US3965694A
Cited
US3875996A
Cited
US3933628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |