US2004134912A1PendingUtilityA1

Drawn wall ironed can for light colored fruits

23
Individually held — no corporate assignee on recordPriority: Jul 18, 2000Filed: Nov 12, 2003Published: Jul 15, 2004
Est. expiryJul 18, 2020(expired)· nominal 20-yr term from priority
Inventors:George Tarulis
B65D 25/14B65D 7/42B65D 25/34B65D 1/165
23
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A method of making packaging for light colored fruits includes steps of providing a base material having a steel substrate, a first layer of tin material on a first side of the substrate and a second layer of tin material on a second side of said substrate, forming the base material into a can body for a DWI can having a bottom surface and a sidewall comprising an exterior surface that has a first coating including tin and an interior surface having a second coating also including tin, inserting foodstuffs into the can body so that the foodstuffs are exposed to the tin surface, and applying a top end to the can body.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A DWI can for packaging light colored fruits and vegetables, comprising: 
 a bottom;    a sidewall integral with said bottom, said sidewall comprising a steel substrate, a first coating comprising tin on an outer surface thereof and a second coating comprising tin on an inner surface thereof, said second coating having a mass per unit area that is at least 0.15 pounds of tin per base box, said sidewall further comprising no additional protective coating on said second coating; and    a top end secured to said sidewall,    wherein said sidewall is fabricated by a drawn wall ironing process from a tin coated steel substrate.    
     
     
         2 . A DWI can according to  claim 1 , wherein said second coating has a mass per unit area that is at least 0.20 pounds of tin per base box.  
     
     
         3 . A DWI can according to  claim 2 , wherein said second coating has a mass per unit area that is at least 0.25 pounds of tin per base box.  
     
     
         4 . A DWI can according to  claim 1 , wherein said second coating is thicker than said first coating.  
     
     
         5 . A DWI can according to  claim 1 , wherein said second coating is unbreached.  
     
     
         6 . A method of making packaging for light colored fruits comprising steps of: 
 (a) providing a base material having a steel substrate, a first layer of tin material on a first side of said substrate and a second layer of tin material when a second side of said substrate, with no additional protective coating on said second layer;    (b) using the drawn wall ironing process to form said base material into a can body for a DWI can having a bottom surface and a sidewall comprising an exterior surface corresponding to said second layer that has a first coating comprising tin and an interior surface corresponding to said first layer having a second coating also comprising tin that is thicker than said first exterior coating;    (c) inserting foodstuffs into the can body so that said foodstuffs are exposed to said tin surface; and    (d) applying a top end to the can body.    
     
     
         7 . A method according to  claim 6 , wherein said second coating has a mass per unit area that is at least 0.15 pounds of tin per base box.  
     
     
         8 . A method according to  claim 7 , wherein said second coating has a mass per unit area that is at least 0.20 pounds of tin per base box.  
     
     
         9 . A method according to  claim 8 , wherein said second coating has a mass per unit area that is at least 0.25 pounds of tin per base box.  
     
     
         10 . A method according to  claim 6 , wherein said first layer has a mass per unit area that is at least 0.50 pounds of tin per base box.  
     
     
         11 . A method according to  claim 6 , wherein said first layer has a mass per unit area that is at least 0.60 pounds of tin per base box.  
     
     
         12 . A method according to  claim 6 , wherein said first layer has a mass per unit area that is at least 0.675 pounds of tin per base box.  
     
     
         13 . A method according to  claim 6 , wherein said second layer has a mass per unit area that is at least 0.10 pounds of tin per base box.  
     
     
         11 . A method according to  claim 6 , wherein said second layer has a mass per unit area that is at least 0.125 pounds of tin per base box.  
     
     
         12 . A method according to  claim 6 , wherein said second layer has a mass per unit area that is at least 0.15 pounds of tin per base box.  
     
     
         14 . A method according to  claim 1 , wherein said first layer has a mass per unit area that is at least 100 pounds of tin per base box.  
     
     
         15 . A method according to  claim 14 , wherein said first layer has a mass per unit area that is at least 120 pounds of tin per base box.  
     
     
         16 . A method according to  claim 15  wherein said first layer has a mass per unit area that is at least 135 pounds of tin per base box.  
     
     
         17 . A method according to  claim 11 , wherein said second layer has a mass per unit area that is at least 20 pounds of tin per base box.  
     
     
         18 . A method according to  claim 17 , wherein said second has a mass per unit area that is at least 25 pounds of tin per base box.  
     
     
         19 . A method according to  claim 18 , wherein said second layer has a mass per unit area that is at least 30 pounds of tin per base box.  
     
     
         20 . A method according to  claim 6 , wherein said first layer has a greater mass per unit area than said second layer.  
     
     
         21 . A method according to  claim 6 , wherein said first layer is thicker than said second layer.

Join the waitlist — get patent alerts

Track US2004134912A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.