US3557753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquatic chamber
Assignee: Individual
•
Filing: 1968-11-13
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Granted: 1971-01-26
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Expires: 1988-11-13
Abstract
Abstract An aquarium having a tank for living aquatic specimens, the tank filled with aquatic media suitable for the specimens, a filter in the tank which has an uppermost layer of living algae and aquatic plants, an intermediate layer of calcite to precipitate acid compounds and maintain a suitable PH factor in the media and a lower layer of fiber wool containing anaerobic micro-organisms is provided. A means circulating the media through the aquarium and the three layers of filter, a heating and cooling means for the media and a lighting means complete the structure.
Inventors
- 👤 Joseph L Dantoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
An aquarium comprising: a tank for containing living aquatic specimens, said tank being filled with aquatic media suitable to said specimens; a filter in said tank, said filter having a topmost filter medium of algae and aquatic plants functioning by photosynthesis to remove from the aquatic media compounds which serve in the life process of the algae and plants or are stored therein as sugar or starch; a second intermediate filter medium below said topmost filter, said second filter medium of calcite material; a third filter medium of fiber wool below said intermediate filter medium; means for circulating said aquatic media from below said third filter medium, through the circulating means and back to the tank above said topmost filter medium; heating means for the aquatic media; cooling means for the aquatic media; and lighting means positioned to direct the light rays thereof on said aquatic media.
Claim 2
Dependent Claim
147 words
An aquarium comprising: a tank for containing living aquatic specimens, said tank being filled with aquatic media suitable to said specimens; a filter in said tank, said filter having a topmost filter medium of algae and aquatic plants functioning by photosynthesis to remove from the aquatic media compounds which serve in the life process of the algae and plants or are stored therein as sugar or starch; a second intermediate filter medium below said topmost filter, said second filter medium of calcite material; a third filter medium of fiber wool below said intermediate filter medium; means for circulating said aquatic media from below said third filter medium, through the circulating means and back to the tank above said topmost filter medium; heating means for the aquatic media; cooling means for the aquatic media; and lighting means positioned to direct the light rays thereof on said aquatic media.
Claim 3
Dependent Claim
84 words
An aquarium as defined in claim 1 in which said calcite filter comprises 90-92 percent calcium carbonate, 3-6 percent magnesium carbonate and the balance silica compounds, said filter acting as a pH buffer and to precipitate acid compounds as a calcium salt and to maintain the desirable pH balance of 7.6 to 8.3 in the aquatic media, and in which the fiber wool filter contains a growth of anaerobic micro-organisms which transform the products of metabolism into usable materials which take part in photosynthesis.
Claim 4
Dependent Claim
27 words
An aquarium as defined in claim 1 in which the circulating means includes an air lift pump for aerating the aquatic media and bubbling off harmful gases.
Claim 5
Dependent Claim
20 words
An aquarium as defined in claim 1 in which the heating and cooling means are immersed directly in the tank.
Claim 6
Dependent Claim
38 words
An aquarium as defined in claim 1 in which the heating and cooling means are enclosed in a container separate from the tank and the aquatic media from the tank is circulated therethrough and returned to the tank.
Claim 7
Dependent Claim
28 words
An aquarium as defined in claim 1 in which the lighting means is positioned above the tank and means is provided to vary the intensity of the light.
Claim 8
Dependent Claim
42 words
An aquarium as defined in claim 1 in which the aquatic media is taken from the tank for the circulating means at a point below the third filter and returned to the tank at the level of the media in the tank.
Claim 9
Dependent Claim
43 words
An aquarium as defined in claim 1 wherein one or more auxiliary tanks are associated with the primary filter tank for receiving a flow of aquatic media from the primary tank and means for returning the overflow of media to the primary tank.
References Cited (Backward Citations)
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Cited
US3025831A
Cited
US3324829A
Cited
US3371789A
Cited
US3387587A
Cited
US3465718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |