Patent US3891535A successfully refreshed from Google Patents.
US3891535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium water treatment apparatus
Assignee: Individual
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Filing: 1973-07-09
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Granted: 1975-06-24
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Expires: 1993-07-09
Abstract
Abstract Water treatment apparatus for use in aquariums and the like comprising the serial arrangement of spaced apart paralled disposed plates positioned in the water being treated. Consecutive plates are oppositely polarized at a relatively low voltage. The polarization of the plates is periodically or randomly reversed. The apparatus acts to kill bacteria, aerate and increase the circulation of the water thereby improving the general environment of the aquarium.
Inventors
- 👤 Arnold Wikey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:12
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/467; C02F1/4672; C02F1/72; C02F1/727; C02F1/46109; C02F2001/46133; C02F2001/46138; C02F2001/46152; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/4612; C02F2201/46125; C02F2201/4613; C02F2201/4615; C02F2201/4616; C02F2201/4617; C02F2303/00; C02F2303/04; Y; Y10; Y10S; Y10S204/00; Y10S204/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
WATER TREATMENT APPARATUS FOR AERATING AND STERLIZING FISH TANKS, SAID APPARATUS COMPRISING AT LEAST ONE PAIR OF ELECTRODES IMMERSED IN SAID FISH TANK, SAID ELECTRODES BEING JUXTAPOSED BUT NOON-CONTIGUOUS TO ONE ANOTHER, A LOW VOLAGE SOURCE FOR OPPOSITELY POLARIZING SAID ELCTRODES TO CAUSE ELECTROLYSIS OF THE WATER TO RELEASE GASES FOR SIMULTANEOUSLY STERLIZING AND AERATING THE WATER, MEANS FOR PERIODICALLY CHANGING POLARIZATION TO MAINTAN THE GASEOUS DISCHARGE AT SAID ELELCTRODES, TUBE MEANS SURROUNDING SAID ELECTROLYSIS UNIT IN SAID FISH TANK, SAID TUBE MEANS COMPRISING A FIRST VERTICAL TUBE OPENED AT THE BOTTOM THEREOF, SAID TUBE MEANS FURTHER COMPRISING A SECOND VERTICAL TUBE, SAID SECOND VERTICAL TUBE CLOSED AT THE TOP AND OPEN AT THE BOTTOM THEREOF, A HORIZONTAL TUBE JOINING SAID FIRST AND SECOND VERTICAL TUBES, AND SAID HORIZONTAL TUBE BEING LOCATES SO AS TO BE BELOW THE SURFACE OF THE WATER WHEN SAID FISH TANK IS IN OPERATION WHEREBY CIRCULATION FOR AERATION IS ACCOMPLISHED BY THE ELCTORDES BEING ENERGIZED TO FORCE WATER FROM SAID FIRST VERTICAL TUBE THROUGH SAID HORIZONTAL TUBE AND SAID SECOND VERTICAL TUBE TO AERATE THE LOWER LEVELS OF SAID FISH TANK.
Claim 2
Dependent Claim
186 words
WATER TREATMENT APPARATUS FOR AERATING AND STERLIZING FISH TANKS, SAID APPARATUS COMPRISING AT LEAST ONE PAIR OF ELECTRODES IMMERSED IN SAID FISH TANK, SAID ELECTRODES BEING JUXTAPOSED BUT NOON-CONTIGUOUS TO ONE ANOTHER, A LOW VOLAGE SOURCE FOR OPPOSITELY POLARIZING SAID ELCTRODES TO CAUSE ELECTROLYSIS OF THE WATER TO RELEASE GASES FOR SIMULTANEOUSLY STERLIZING AND AERATING THE WATER, MEANS FOR PERIODICALLY CHANGING POLARIZATION TO MAINTAN THE GASEOUS DISCHARGE AT SAID ELELCTRODES, TUBE MEANS SURROUNDING SAID ELECTROLYSIS UNIT IN SAID FISH TANK, SAID TUBE MEANS COMPRISING A FIRST VERTICAL TUBE OPENED AT THE BOTTOM THEREOF, SAID TUBE MEANS FURTHER COMPRISING A SECOND VERTICAL TUBE, SAID SECOND VERTICAL TUBE CLOSED AT THE TOP AND OPEN AT THE BOTTOM THEREOF, A HORIZONTAL TUBE JOINING SAID FIRST AND SECOND VERTICAL TUBES, AND SAID HORIZONTAL TUBE BEING LOCATES SO AS TO BE BELOW THE SURFACE OF THE WATER WHEN SAID FISH TANK IS IN OPERATION WHEREBY CIRCULATION FOR AERATION IS ACCOMPLISHED BY THE ELCTORDES BEING ENERGIZED TO FORCE WATER FROM SAID FIRST VERTICAL TUBE THROUGH SAID HORIZONTAL TUBE AND SAID SECOND VERTICAL TUBE TO AERATE THE LOWER LEVELS OF SAID FISH TANK.
Claim 3
Dependent Claim
30 words
The apparatus of claim 1 wherein said horizontal tube joins said second vertical tube at the top thereof so that the second vertical tube is closed at the top thereof.
Claim 4
Dependent Claim
171 words
A water treatment apparatus for aerating and sterilizing fish tanks, said apparatus comprising at least one pair of electrodes immersed in said fish tank, said electrodes being juxtaposed but non-contiguous to one another, a low voltage source for oppositely polarizing said electrodes to cause electrolysis of the water to release gases to simultaneously sterilize and aerate the water, means for periodically changing the polarization to maintain the gaseous discharge at said electrodes, tube means surrounding said electrolysis unit in said fish tank, a horizontal tube joining said first and second vertical tubes, said electrodes disposed within said first vertical tube, said first and second vertical tubes extending below the water line and open at said tube bottoms, said first vertical tube also open at the top and said second vertical tube closed at the top, said horizontal tube providing a conduit for circulation of aerated water from said first vertical tube through said horizontal tube and down said second vertical tube into the water adjacent to the bottom of the tank.
Claim 5
Dependent Claim
171 words
A water treatment apparatus for aerating and sterilizing fish tanks, said apparatus comprising at least one pair of electrodes immersed in said fish tank, said electrodes being juxtaposed but non-contiguous to one another, a low voltage source for oppositely polarizing said electrodes to cause electrolysis of the water to release gases to simultaneously sterilize and aerate the water, means for periodically changing the polarization to maintain the gaseous discharge at said electrodes, tube means surrounding said electrolysis unit in said fish tank, a horizontal tube joining said first and second vertical tubes, said electrodes disposed within said first vertical tube, said first and second vertical tubes extending below the water line and open at said tube bottoms, said first vertical tube also open at the top and said second vertical tube closed at the top, said horizontal tube providing a conduit for circulation of aerated water from said first vertical tube through said horizontal tube and down said second vertical tube into the water adjacent to the bottom of the tank.
Claim 6
Dependent Claim
32 words
The apparatus of claim 3 wherein said electrodes are spaced 1/64 inch apart, said space maintained by insulators disposed between said electrodes, and said electrodes being platinum plated titanium in plate shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |