USRE37139EExpiredUtility

Insulating element for building

34
Priority: Mar 13, 1992Filed: Feb 8, 1995Granted: Apr 17, 2001
Est. expiryMar 13, 2012(expired)· nominal 20-yr term from priority
Inventors:Ludwig Krickl
B32B 5/06E04B 1/7662E04F 13/00E04B 2001/743E04B 1/78Y02A30/244Y10T428/24612Y10T428/2457Y10T428/24124Y10T442/662Y10T442/667Y10T442/671
34
PatentIndex Score
12
Cited by
7
References
8
Claims

Abstract

An insulating element for buildings and more particularly, for walls, ceilings and roofs, consists of a sheepswool fleece which is sandwiched between two layers of needled non-woven material consisting of sheepswool. The fleece and the needled non-woven material are connected together by fibers thereof to constitute a unit able to be handled as such.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
       1. An insulating element for buildings comprising: 
       a sheepswool fleece sandwiched between two layers of needled non-woven material consisting of sheepswool, the fleece and the needled non-woven material being connected together by fibers thereof to constitute a unit.  
     
     
       2. The insulating element as claimed in claim  1 , wherein said fleece is cross-laid. 
     
     
       3. The insulating element as claimed in claim  1 , wherein the connection produced by needling between the needled non-woven material and the fleece is limited to selected connection zones. 
     
     
       4. The insulating element as claimed in claim  3 , wherein the connection zones are distributed generally in the form of quilting seams. 
     
     
       5. An insulating element for buildings comprising: 
         a sheepswool fleece positioned against at least one layer of needled non - woven material consisting of sheepswool, the fleece and the needled non - woven material being connected together by fibers thereof to constitute an unit.    
     
     
       6. The insulating element as claimed in claim  5 , wherein said fleece is cross- laid.    
     
     
       7. The insulating element as claimed in claim  5 , wherein the connection produced by needling between the needled non- woven material and the fleece is limited to selected connection zones.    
     
     
       8. The insulating element as claimed in claim  7 , wherein the connection zones are distributed generally in the form of quilting seams.

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