US5246760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating element for building
Assignee: Individual
•
Filing: 1992-03-13
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Granted: 1993-09-21
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Expires: 2012-03-13
Abstract
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.
Inventors
- 👤 Ludwig Krickl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:05
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/06; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/7654; E04B1/7658; E04B1/7662; E04B1/78; B32B2262/00; B32B2262/08; B32B2307/00; B32B2307/30; B32B2307/304; B32B2607/00; E04B2001/742; E04B2001/743; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A30/244; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/24479; Y10T428/2457; Y10T428/24612; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/66; Y10T442/662
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
37 words
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.
Claim 2
Dependent Claim
37 words
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.
Claim 3
Dependent Claim
13 words
The insulating element as claimed in claim 1, wherein said fleece is cross-laid.
Claim 4
Dependent Claim
28 words
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.
Claim 5
Dependent Claim
21 words
The insulating element as claimed in claim 3, wherein the connection zones are distributed generally in the form of quilting seams.
References Cited (Backward Citations)
US1454049A
Cited
US3483601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |