US4631074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for reducing the temperature of air
Assignee: Didier Werke AG
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Filing: 1982-11-30
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Granted: 1986-12-23
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Expires: 2002-11-30
Abstract
Abstract The temperature of humid environmental air is reduced by passing the air, in a first stage, through a moisture storage agent and therein substantially freeing the air of the moisture content thereof. In a second stage, the air is passed through a heat storage agent and therein the temperature of the air is lowered without changing the humidity thereof. In a third stage the thus dried and cooled air is passed through a moisturizing system, and therein the moisture content of the air is increased and the temperature of the air is further lowered.
Inventors
- 👤 Axel Eschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:15
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/0014
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
A method of reducing the temperature of humid environmental air, said method comprising: providing in series connection a first moisture storage agent, a first heat storage agent, a second moisture storage agent and a second heat storage agent; passing said air serially through said agents and thereby: passing said air through said first moisture storage agent and therein substantially reducing the moisture content of said air; passing said air through said first heat storage agent and therein lowering the temperature of said air without changing the humidity thereof; passing said air through said second moisture storage agent and therein substantially freeing said air of the remaining moisture content thereof; and passing said air through said second heat storage agent and therein further lowering the temperature of said air without changing the humidity thereof; and then passing said air through a water saturated moisture storage agent and therein increasing the moisture content of said air and further lowering the temperature thereof.
Claim 2
Independent Claim
160 words
A method of reducing the temperature of humid environmental air, said method comprising: providing in series connection a first moisture storage agent, a first heat storage agent, a second moisture storage agent and a second heat storage agent; passing said air serially through said agents and thereby: passing said air through said first moisture storage agent and therein substantially reducing the moisture content of said air; passing said air through said first heat storage agent and therein lowering the temperature of said air without changing the humidity thereof; passing said air through said second moisture storage agent and therein substantially freeing said air of the remaining moisture content thereof; and passing said air through said second heat storage agent and therein further lowering the temperature of said air without changing the humidity thereof; and then passing said air through a water saturated moisture storage agent and therein increasing the moisture content of said air and further lowering the temperature thereof.
Claim 3
Dependent Claim
18 words
A method as claimed in claim 1, wherein said heat storage agent comprises olivine or a basalt material.
Claim 4
Dependent Claim
17 words
A method as claimed in claim 1, wherein said moisture storage agent comprises zeo1ite or silica gel.
Claim 5
Independent Claim
160 words
An apparatus for reducing the temperature of humid environmental air and for use with a blower and piping system for conveying the air, said apparatus comprising: a first moisture storage agent for receiving humid environmental air and for substantially reducing the moisture content thereof; a first heat storage agent for receiving said air from said first moisture storage agent and for lowering the temperature of said air without changing the humidity thereof; a second moisture storage agent for receiving said air from said first heat storage agent and for substantially freeing said air of the remaining mosisture content thereof; a second heat storage agent for receiving said air from said second moisture storage agent and for further lowering the temperature of said air without changing the humidity thereof; and a water saturated moisture storage agent for receiving said air from said second heat storage agent and for increasing the moisture content of said air and further lowering the temperature thereof.
Claim 6
Independent Claim
160 words
An apparatus for reducing the temperature of humid environmental air and for use with a blower and piping system for conveying the air, said apparatus comprising: a first moisture storage agent for receiving humid environmental air and for substantially reducing the moisture content thereof; a first heat storage agent for receiving said air from said first moisture storage agent and for lowering the temperature of said air without changing the humidity thereof; a second moisture storage agent for receiving said air from said first heat storage agent and for substantially freeing said air of the remaining mosisture content thereof; a second heat storage agent for receiving said air from said second moisture storage agent and for further lowering the temperature of said air without changing the humidity thereof; and a water saturated moisture storage agent for receiving said air from said second heat storage agent and for increasing the moisture content of said air and further lowering the temperature thereof.
Claim 7
Dependent Claim
18 words
An apparatus as claimed in claim 4, wherein said heat storage agent comprises olivine or a basalt material.
Claim 8
Dependent Claim
17 words
An apparatus as claimed in claim 4, wherein said moisture storage agent comprises zeolite or silica gel.
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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) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |