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US4400399A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and an arrangement for feeding fish with a fodder

Assignee: Chemap AG
•
Filing: 1981-07-24
•
Granted: 1983-08-23
•
Expires: 2001-07-24
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Abstract

Abstract A method of feeding fish in a tank with water comprises the steps of forming in the fish tank a region for feeding fish, introducing into the region a water-stable fodder and forcedly moving the water in the fish tank so as to maintain the fodder floating in the feeding region. In an arrangement for performing the method means forming a feeding station, and means for forcedly moving water in the feeding station are provided. The method of the invention may also comprise the step of utilizing heat liberated during operation of a biological reactor for heating agitated water in the fish tank. A water-stable fish fodder comprises particulate nutrient matter and a protein-containing binder imparting substantial water stability to the fodder formed as a pallet. The binder may be admixed with or may outwardly cover the particulate nutrient matter.

Inventors

  • 👤 Hans Muller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 06:23
CPC Classifications
A; A23; A23K; A23K50/00; A23K50/80; Y; Y10; Y10S; Y10S426/00; Y10S426/805

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 100 words
A fish fodder which is not readily soluble in water, consisting of a gelatinless particulate nutrient matter; and a gelatin binder for said gelatinless particulate nutrient matter, said particulate nutrient matter and said gelatin binder being pelletized, said gelatin binder being soluble in warm water so as to facilitate manufacture of the pellet and swelling in cold water so as to improve attractiveness of the pellet to fish, said gelatin binder present in effective amounts to import substantial water stability to the pellet so as to prevent ready dissolution of the same in water while permitting the pellet to float.
Claim 2
Dependent Claim 100 words
A fish fodder which is not readily soluble in water, consisting of a gelatinless particulate nutrient matter; and a gelatin binder for said gelatinless particulate nutrient matter, said particulate nutrient matter and said gelatin binder being pelletized, said gelatin binder being soluble in warm water so as to facilitate manufacture of the pellet and swelling in cold water so as to improve attractiveness of the pellet to fish, said gelatin binder present in effective amounts to import substantial water stability to the pellet so as to prevent ready dissolution of the same in water while permitting the pellet to float.
Claim 3
Dependent Claim 25 words
The fish fodder as defined in claim 1, wherein said particulate nutient matter comprises particulate nutrient ingredients, and said binder is admixed with said ingredients.
Claim 4
Dependent Claim 35 words
The fish fodder as defined in claim 2, wherein said particulate nutrient matter together with said admixed binder forms a core of said pellet, said binder further forming a cover layer outwardly surrounding said core.
Claim 5
Dependent Claim 29 words
The fish fodder as defined in claim 1, wherein particulate nutrient matter forms a core of said pellet, and said binder forms a cover layer outwardly surrounding said core.
Claim 6
Dependent Claim 25 words
The fish fodder as defined in claim 1, wherein said binder is a substance selected from the group consisting of hardened gelatin and unhardened gelatin.
Claim 7
Dependent Claim 15 words
The fish fodder as defined in claim 1, wherein said binder is a hardened binder.

References Cited (Backward Citations)

US2951761A Cited
US3421899A Cited
US3733204A Cited
US3876803A Cited
US3864498A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-08-22 1987-02-21 1987-08-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-08-22 1991-02-21 1991-08-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-08-22 1995-02-21 1995-08-23 $7700.00 Window Closed / Lapsed

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