US4871452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-board water supply
Assignee: Airbus Defence and Space GmbH
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Filing: 1988-05-12
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Granted: 1989-10-03
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Expires: 2008-05-12
Abstract
Abstract Water supply in aircraft for on-board use in conjunction with water outlets in lavatories and a galley, includes a waste water tank connected to at least some of the waste discharge outlets on board of the aircraft; a water purifying plant connected to and receiving water from the waste water tank; and a fresh water tank having outlet means, connected at least to some of the water outlets, and having an inlet connected to said water purification plant, for receiving therefrom purified waste water; an additional tank for drinking water may be provided as well as a separate supply line therefrom leading to drinking water outlets on board of the aircraft.
Inventors
- 👤 Karl Kohler
- 👤 Dirk V. Reith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
E; E03; E03F; E03F5/00; B; B64; B64D; B64D11/00; B64D11/02; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
Water supply in aircraft for on-board use in conjunction with water outlets in lavatories and a galley, comprising: a waste water tank connected to at least some of the waste discharge outlets on board of the aircraft; a water purifying plant connected to and receiving water from the waste water tank; a fresh water tank having outlet means, connected at least to some of the water outlets and having an inlet connected to said water purification plant, for receiving therefrom purified waste water; and said water purifying plant including a mechanical filter, a pump, a carbon filter, an ozone stage, an osmosis stage and a disinfecting stage, all these components connected in series in the stated sequence, from the waste water tank to the fresh water tank, so that potable water be received by the fresh water tank from the purifying plant.
Claim 2
Dependent Claim
142 words
Water supply in aircraft for on-board use in conjunction with water outlets in lavatories and a galley, comprising: a waste water tank connected to at least some of the waste discharge outlets on board of the aircraft; a water purifying plant connected to and receiving water from the waste water tank; a fresh water tank having outlet means, connected at least to some of the water outlets and having an inlet connected to said water purification plant, for receiving therefrom purified waste water; and said water purifying plant including a mechanical filter, a pump, a carbon filter, an ozone stage, an osmosis stage and a disinfecting stage, all these components connected in series in the stated sequence, from the waste water tank to the fresh water tank, so that potable water be received by the fresh water tank from the purifying plant.
Claim 3
Dependent Claim
29 words
Water supply as in claim 1, inlcuding an additional tank for drinking water, and a separate supply line therefrom leading to drinking water outlets on board of the aircraft.
References Cited (Backward Citations)
US3995328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |