US2006191235A1PendingUtilityA1

I joist

47
Individually held — no corporate assignee on recordPriority: Feb 28, 2005Filed: Feb 28, 2005Published: Aug 31, 2006
Est. expiryFeb 28, 2025(expired)· nominal 20-yr term from priority
Inventors:Brian M. PeekChristopher Scoville
E04C 3/185
47
PatentIndex Score
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Cited by
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Claims

Abstract

An I-joist is provided comprising a first and a second flange interconnected by a webstock; the first flange has a first major surface upon which is formed a groove, so that the groove faces and receives the webstock; and a fiberous re-enforcing material impregnated with adhesive resin disposed in the groove.

Claims

exact text as granted — not AI-modified
1 . An I joist comprising: 
 a first and a second flange interconnected by a webstock;    the first flange has a first major surface upon which is formed a groove, so that the groove faces and receives the webstock; and    a fiberous re-enforcing material impregnated with adhesive resin disposed in the groove.    
   
   
       2 . The I joist according to  claim 1 , wherein the first and second flange are composed of oriented strand board.  
   
   
       3 . The I joist according to  claim 1 , wherein the first and second flange, and webstock are composed of oriented strand board.  
   
   
       4 . The I joist according to  claim 1 , wherein the first and second flange are composed of strands having a length of between about 2 inches to about 6 inches.  
   
   
       5 . The I joist according to  claim 1 , wherein the fibrous re-enforcing material is selected from the group comprising fiberglass, Kevlar®, and carbon fiber.  
   
   
       6 . I joist according to  claim 1 , wherein the adhesive resin is selected from the group comprising: epoxies, phenolics, resorcinols, acrylics, urethanes, phenolic-resorcinol-formaldehyde resins, and methane diisocyanates.  
   
   
       7 . The I joist according to  claim 1 , wherein the glass cloth is fiberglass.  
   
   
       8 . The I joist according to  claim 1 , wherein the first and second flange are composed of OSB, wherein strands in the OSB have a length of between about 2 inches to about 6 inches.  
   
   
       9 . The I joist according to  claim 1 , wherein the second flange has a second major surface upon which is formed a second groove, so that the second groove faces and receives the webstock, and a second glass cloth impregnated with adhesive resin is disposed in the second groove.

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