US2013284104A1PendingUtilityA1

Aquaculture cage screen

60
Individually held — no corporate assignee on recordPriority: May 13, 2010Filed: Jun 25, 2013Published: Oct 31, 2013
Est. expiryMay 13, 2030(~3.8 yrs left)· nominal 20-yr term from priority
Inventors:Peter B. Lindgren
B29D 28/00A01K 75/00A01K 61/60Y02A40/81A01K 61/007
60
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A fish cage formed from a molecularly oriented single strand filament that is crossed and welded at the intersections to make a net or screen configuration. The filament being molecularly oriented by stretching ratio of about 3:1 and has a cross section of the filament being at least 2 mm 2 . The filament is an extruded thermoplastic material made from nylon, polyester, polyethylene, polyurethane or polypropylene having a preferred cross section in a D or oval shape to better facilitate welding the intersections. An antimicrobial or biocide may be added to the filament. The screen or net is preferably of a bright color such as yellow, green, white or a translucent white. The screen can also be formed by connecting small injection molded segments together thereby producing a larger screen.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A fish screen comprising: a first series of thermoplastic filaments that are positioned into a cross pattern with a second series of thermoplastic filaments, said first and second series of thermoplastic filaments being interconnected at intersections to make a screen segment, said screen segment secured to a frame structure wherein a plurality of said frame structures are coupled together to form a cage. 
     
     
         2 . The fish screen according to  claim 1  wherein each of said filaments of said first and second series of thermoplastic filaments has a cross section of about 2 mm 2  in any direction. 
     
     
         3 . The fish screen of  claim 1  wherein each of said filaments of said first and second series of thermoplastic filaments is molecularly oriented by stretching ratio of about 3:1. 
     
     
         4 . The fish screen according to  claim 1  wherein each of said filaments is formed from one of the group consisting of:
 nylon, polyester, polyethylene, polyurethane or polypropylene. 
 
     
     
         5 . The fish screen according to  claim 1  wherein each of said filaments has a cross section shaped in a “D” or oval shape to facilitate welding at the intersections. 
     
     
         6 . The fish screen according to  claim 1  wherein each of said filaments of said first and second series of thermoplastic filaments includes an antimicrobial or biocide. 
     
     
         7 . The fish screen according to  claim 1  wherein each of said filaments of said first and second series of thermoplastic filaments is a bright color. 
     
     
         8 . The fish screen according to  claim 1  including a least one buoyant member attached to said geodesic cage. 
     
     
         9 . The fish screen according to  claim 1  wherein screen segments are interconnected by use of a flat strap threaded through adjoining filaments. 
     
     
         10 . The fish screen according to  claim 1  wherein said filaments are spaced apart between ½ inch and 1½ inch. 
     
     
         11 . The fish screen according to  claim 1  wherein said filaments are extruded. 
     
     
         12 . The fish screen according to  claim 1  wherein said filaments are injection molded. 
     
     
         13 . The fish screen of  claim 1  wherein each frame section has six edges and coupled together to form a geodesic cage. 
     
     
         14 . The fish screen of  claim 1  wherein said frame section has four sides. 
     
     
         15 . The fish screen of  claim 1  wherein said frame section has three sides

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