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Class 119/216 - Live fish sorting or grading


Subclass of Class 119 - Animal husbandry
Definition: Subject matter including apparatus for separating live fish
No. of patents: 21
Last issue date: 12/18/2007


NumberTitleIssue Date
7308774Solar insect killer and catcher
A solar insect killer and catcher includes a casing, a solar plate, a power supply, a control switch, a timer, a circuit board and a plurality of light-emitting elements to emit the lights having various wavelengths. If a user intends to kill or catch the insects, h...
12/18/2007
7281350Mosquito/insect larva trap magnet system
A housing has an upper and lower portion. Each portion has a recessed interior face, an exterior face and a periphery there around. The upper portion and the lower portion are coupled together with spacers. An aperture is provided between the upper and lower portion...
10/16/2007
7213536Method for producing short-lived salt-tolerant freshwater baitfish
A method for selecting a freshwater fish able to tolerate conditions of varying salinity is disclosed. Fish are first selected by pre-screening for salt-tolerance. The selected fish are bred using techniques essentially described herein. The offspring of the selecte...
05/08/2007
7201114Apparatus for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast
Apparatuses for directing the displacement of aquatic crustaceans are provided and are particularly used to carry out the methods for attracting the motion of aquatic crustaceans after feeding by utilizing their biological tendency responding to a bright and dark co...
04/10/2007
7174850Multi-layered aquaculture system
By directing the none-molting crustaceans to move into a predetermined area in a culture tank, the present invention discloses a multi-layered aquaculture system with shallow-water containers which is based upon the utilization of the methods and apparatus to elimin...
02/13/2007
7028846Fish grading device
A fish grading device is provided including a framework of substantially rigid elongate members pivotably interconnected to form a plurality of loops, wherein each the loop is formed from a plurality of the substantially rigid elongate members and defines an apertur...
04/18/2006
7000567Method for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast
A method for directing the displacement of aquatic crustaceans after feeding by utilizing their biological tendency responding to a bright and dark contrast is provided. This method comprises steps to generate the visual effect of this bright and dark contrast at a ...
02/21/2006
6932025Scalable fish rearing raceway system
A scalable fish rearing raceway system is provided, incorporating a fish containment structure having two semi-circular end sections, and two or more parallel fish raceways, surrounding a central zone for housing water treatment systems and a secondary fish crop. He...
08/23/2005
6880485System and method for controlling fish flow with jet device
A system and method for controlling the flow of fish. The system includes a vessel containing water and having an exit aperture. The system also includes a sensor configured to sense a first fish moving through the exit aperture. In addition, the system includes a j...
04/19/2005
6694920Method of using sound for attracting and grading fish
A duck shooting resort layout having a body of water, a peripheral embankment encircling the water, a duck hunting region within the resort, and duck hunting blinds within the hunting region from which hunters may shoot ducks. A method of training ducks t...
02/24/2004
6161504Apparatus for collecting live marine animals
An apparatus for collecting and discharging live marine animals, the apparatus having a collection chamber for holding the marine animals, an inlet conduit having one end extendible into a body of water containing the marine animals, and another end in fl...
12/19/2000
6112699Euphausiid harvesting and processing method and apparatus
Method and apparatus for harvesting and processing zooplankton and, in particular, for harvesting and processing euphausiids for subsequent use as a feed product for early stage juvenile or larvae feed or for a food product as an additive. The euphausiids...
09/05/2000
5894936Drum separator for brine shrimp eggs
A drum separator for separating brine shrimp eggs from a slurry containing an agglomeration of adult brine shrimp, brine shrimp eggs and debris includes a fluid source to maintain a slurry. The fluid source may be an internal spray jet disposed to spray a...
04/20/1999
5543330Method for diagnosing myofibrogranuloma (MFG) in walleye
An improved method for diagnosing myofibrogranuloma (MFG) in walleye without harming the fish is described. Blood samples are drawn from walleye and creatinine and calcium levels are then determined along with the sex and length of the fish. These data ar...
08/06/1996
5221458Electroforming process for endless metal belt assembly with belts that are increasingly compressively stressed
An electroforming process for forming a multilayer endless metal belt includes forming increasingly compressively stressed successive layers on a mandrel, and assembling the layers to form a multilayer belt. The belt is particularly useful as a driving me...
06/22/1993
5038715Aquaculture system
An enclosed aquaculture system for growing fish comprises several successively interconnected container stages for holding growing fish. Each of the container stages has a size larger than the container stage preceding it, continuous interconnections betw...
08/13/1991
4351438Apparatus for analyzing a fish population
Apparatus for analyzing a fish population. The apparatus includes an elevated tank which receives fish transferred from a pond. Fish travel from this tank and by gravity through a fish grader which separates the fish into different size ranges of fish. Di...
09/28/1982
4198925Grading small live fish underwater
A fish grader having a boxlike frame with at least one barred side with a net attached outside the frame. The grader is placed in water and fish to be sorted are put in it. The smaller fish swim through the bars into the net, leaving the larger fish in th...
04/22/1980
4095092Aquatic animal counting
Aquatic animals (e.g., fish) are counted in the same operation in which the fish are sorted as to size. This minimizes the labor required for counting because it is the same labor as that used for sorting the animals. A grading or sorting barrier is provi...
06/13/1978
4086875Grading live fish under water
Underwater fish grading may be done in a fish pen defined by a rectangular floating walkway. A flexible net in the pen is supported at its perimeter by the walkway or by support members thereon, and a pair of spaced-apart rigid members bridge the pen, eac...
05/02/1978
3951104Collection and feeding of insects to animals and the sorting of aquatic animals
Use is made of the discovery that "near" ultra-violet radiation is effective in attracting large enough quantities of insects entirely from within the water to feed substantial numbers of animals without attracting flying insects from the air. Radiation f...
04/20/1976
 
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