US3626901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Procedure and arrangement for breeding of fish
Assignee: Xylem Water Solutions AB
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Filing: 1969-05-13
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Granted: 1971-12-14
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Expires: 1989-05-13
Abstract
Abstract A fish-breeding pond is covered with a highly insulating floating layer so as to effectively diminish the losses of heat to the atmosphere and thus with the aid of the heat of the soil to maintain the temperature of the water rather above 5* C., at the same time achieving an effective supply of oxygen through aeration of the water.
Inventors
- 👤 Sixten Englesson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:43
CPC Classifications
E; E02; E02B; E02B1/00; E02B1/003; A; A01; A01K; A01K61/00; A01K61/10; A01K63/00; A01K63/04; A01K63/042; E02B15/00; E02B15/02; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
175 words
A device for raising the productivity in fish breeding ponds comprising, a thermal insulating means covering the entire water surface of said pond, said insulating means being floatingly supported on the water surface, said thermal insulating means comprising at least two plastic fabric sheets positioned adjacent each other, said plastic fabric sheets having a plurality of fastening means therebetween for joining said two sheets together, said fastening means being positioned at a predetermiNed distance from each other, a thermal insulating lining positioned at the sides and bottom of the pond between the ground and the water contained thereby to form the pond, a means for aerating the water in the pond, said aerating means including a plurality of porous blocks submerged below the water surface and being connected with an air supply source, whereby said thermal insulating means prevents a decrease in the water temperature of the pond and the water is supplied with additional oxygen from said air supply source and said porous block enables the air to be better absorbed in the water.
Claim 2
Independent Claim
175 words
A device for raising the productivity in fish breeding ponds comprising, a thermal insulating means covering the entire water surface of said pond, said insulating means being floatingly supported on the water surface, said thermal insulating means comprising at least two plastic fabric sheets positioned adjacent each other, said plastic fabric sheets having a plurality of fastening means therebetween for joining said two sheets together, said fastening means being positioned at a predetermiNed distance from each other, a thermal insulating lining positioned at the sides and bottom of the pond between the ground and the water contained thereby to form the pond, a means for aerating the water in the pond, said aerating means including a plurality of porous blocks submerged below the water surface and being connected with an air supply source, whereby said thermal insulating means prevents a decrease in the water temperature of the pond and the water is supplied with additional oxygen from said air supply source and said porous block enables the air to be better absorbed in the water.
Claim 3
Dependent Claim
62 words
A device for raising productivity in fish breeding ponds as claimed in claim 1, wherein said sheet fastening means comprises tubular spacers positioned parallel to each other between said two sheets, said sheets being secured to said tubular spacers, said tubular spacers having ventilating channels therethrough communicating the water surface with the ambient atmosphere for assisting in the aeration of the water.
Claim 4
Dependent Claim
68 words
A device for raising the productivity in fish breeding ponds as claimed in claim 1, further comprising a third plastic sheet positioned adjacent to and connected with said two plastic sheets, said three plastic sheets being joined together alternately at said sheet fastening means and directly with each other to form seams, the seams for said sheets being displaced by one-half a seam spacing relative to one another.
Claim 5
Dependent Claim
53 words
A device for raising the productivity in fish breeding ponds as claimed in claim 1, wherein said thermal insulating means includes a plurality of air tight channels passing therethrough, said channels being arranged in conjunction with said joining means, whereby said channels furnish additional support to said thermal insulating means upon inflation thereof.
Claim 6
Dependent Claim
55 words
A device for raising the productivity in fish breeding ponds as claimed in claim 4, further comprising, a hollow cylinder positioned on one side of said pond, said hollow cylinder being attached to one edge of said thermal insulating means, whereby said thermal insulating means may be rolled onto said hollow cylinder for storage purposes.
Claim 7
Dependent Claim
51 words
A device for raising the productivity in fish breeding ponds as claimed in claim 5 wherein said hollow cylinder further comprises an air inlet connected to an air supply source and a plurality of air outlets communicating with said channels in said thermal insulating means for inflation of said channels therein.
Claim 8
Dependent Claim
59 words
A device for raising the productivity of fish breeding ponds as claimed in claim 6, further comprising a rigid hollow boom attached to the side of said plastic sheets opposite said cylinder, whereby said boom causes the air to be forced out of the cavities in said plastic sheets when said insulating means is rolled onto said hollow cylinder.
Claim 9
Dependent Claim
49 words
A device for raising the productivity in fish breeding ponds as claimed in claim 7, further comprising two guides, each of said guides positioned along the sides of the pond which are perpendicular to the hollow roller for providing guide means for the edges of the thermal insulating means.
Claim 10
Dependent Claim
34 words
A device for raising the productivity in fish breeding ponds as claimed in claim 1, wherein said thermal insulating lining positioned at the sides and bottom of the pond is comprised of porous concrete.
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |