Patent US4483668A successfully refreshed from Google Patents.
US4483668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming multi-layer plate of lignocellulose-containing particles provided with at least one binder
Assignee: Bison Werke Baehre and Greten GmbH and Co KG
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Filing: 1983-06-16
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Granted: 1984-11-20
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Expires: 2003-06-16
Abstract
Abstract An arrangement for making a multi-layer particle board having several layers of a pressed fleece with two outer cover layers of lignocellulose-containing slender oriented particles mixed with binder material. The particles are strewn to form a lower layer onto the fleece carrier, while they are simultaneously oriented. A middle layer is applied onto the lower cover layer, and an upper cover layer is strewn onto the middle layer under orientation of the particles. At least a part of the slender particles for the cover layers strewn prior to orientation in the opposite direction relative to the transport direction of the fleece carrier, so that in the region of the cover layer facing away from the center layer, the length of the slender particles increases with the distance from the center layer.
Inventors
- 👤 Klaus Poppelreuter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:15
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/25; Y10T428/253; Y10T442/00; Y10T442/50; Y10T442/57
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
Apparatus for making a plate having several layers of a pressed fleece having two outer cover layers of preferably lignocellulose-containing slender oriented particles mixed with at least one binder material, comprising: respective cover layer strewing station for two outer cover layers; orientation means arranged therebelow, and a station for pressing the fleece; each said cover layer strewing station having an inclined screen with a throwing roller at the lower end thereof for the formation of the region homogeneous relative to particle length and size and a region of the cover layer facing away from the center layer, wherein the length of the slender particles increases with the distance from the center layer, longest particles being subjected to the strongest propulsion when scattered by said throwing roller so that the longest particles travel the greatest distance.
Claim 2
Dependent Claim
135 words
Apparatus for making a plate having several layers of a pressed fleece having two outer cover layers of preferably lignocellulose-containing slender oriented particles mixed with at least one binder material, comprising: respective cover layer strewing station for two outer cover layers; orientation means arranged therebelow, and a station for pressing the fleece; each said cover layer strewing station having an inclined screen with a throwing roller at the lower end thereof for the formation of the region homogeneous relative to particle length and size and a region of the cover layer facing away from the center layer, wherein the length of the slender particles increases with the distance from the center layer, longest particles being subjected to the strongest propulsion when scattered by said throwing roller so that the longest particles travel the greatest distance.
Claim 3
Dependent Claim
30 words
Apparatus according to claim 1, and means for making the cover layer wherein, said inclined screen has a mesh width dependent on the size and length of the slender particles.
Claim 4
Dependent Claim
25 words
Apparatus according to claim 2, wherein said orientation means extends in throw direction of said roller below the roller and extends also under the screen.
Claim 5
Dependent Claim
11 words
Apparatus according to claim 2, wherein said screen is swingably driven.
References Cited (Backward Citations)
US2840865A
Cited
US3299478A
Cited
US3645457A
Cited
US3963400A
Cited
US4025254A
Cited
US4213928A
Cited
US4246310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |