US3661688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite board laminate
Assignee: WOOD PROCESS OREGON Ltd
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Filing: 1970-02-18
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Granted: 1972-05-09
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Expires: 1990-02-18
Abstract
Abstract A composite board product according to the present invention is formed from a core of coarse wood components disposed between a pair of cellulosic fiber webs. This assembly is compressed to consolidate the board product and to provide an indented margin thereupon. The board product is provided with a rounded shoulder where the margin joins the rest of the product in order to preserve the continuity of the tough skin formed by a cellulosic fiber web. The margin edge is preferably rounded off on the side of the board product opposite the indented margin, and the tough skin formed by the remaining cellulosic fiber web is folded over. After trimming, only a narrow edge of doubly densified wooden core is exposed to the weather.
Inventors
- 👤 Robert G Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:50
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; B; B27; B27N; B27N3/00; B27N3/06; E04C2/24; E04C2/243; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/18; Y10T428/23; Y10T428/24; Y10T428/24479; Y10T428/24595; Y10T428/24628; Y10T428/24653; Y10T428/24669; Y10T428/24777; Y10T428/24802; Y10T428/24942; Y10T428/29
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
130 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product having a first general thickness between said parallel outer skins, and having at least one portion which is additionally densified and indented, with said outer skin extending to the indented level of said portion, the surface of said indented portion joining the remainder of said board product by at least one section of gradually changing thickness providing a rounded shoulder contour and having one of said skins rolled thereover in bonded relation to said core, said skin being free of breaks for protecting said core where said portion merges with the remainder of said board product.
Claim 2
Dependent Claim
130 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product having a first general thickness between said parallel outer skins, and having at least one portion which is additionally densified and indented, with said outer skin extending to the indented level of said portion, the surface of said indented portion joining the remainder of said board product by at least one section of gradually changing thickness providing a rounded shoulder contour and having one of said skins rolled thereover in bonded relation to said core, said skin being free of breaks for protecting said core where said portion merges with the remainder of said board product.
Claim 3
Dependent Claim
28 words
The board product according to claim 1 wherein said portion has a thickness of about 50 percent of the thickness of the major portion of said board product.
Claim 4
Dependent Claim
51 words
In combination with the board product of claim 1, wherein said portion comprises an edge margin of said board product, a similar board product having a similar but reversely directed margin on its opposite edge, said reversely directed margin engaging the margin of the first mentioned board product in overlapped relation.
Claim 5
Dependent Claim
50 words
The board product according to claim 1 wherein said portion comprises a margin of said board product, said margin having an outer edge rounded off with one of said skins extending part way around said outer edge in bonded relation to the core, leaving a further densified core portion exposed.
Claim 6
Dependent Claim
101 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product haviNg a first general thickness between said parallel outer skins, and having at least one margin which is additionally densified and indented, with said outer skin extending to the indented level of said margin, said margin having an outer edge rounded off with one of said skins extending part way around said outer edge in bonded relation to the core, leaving a further densified core portion exposed.
Claim 7
Dependent Claim
101 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product haviNg a first general thickness between said parallel outer skins, and having at least one margin which is additionally densified and indented, with said outer skin extending to the indented level of said margin, said margin having an outer edge rounded off with one of said skins extending part way around said outer edge in bonded relation to the core, leaving a further densified core portion exposed.
Claim 8
Dependent Claim
126 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product having a first general thickness between said parallel outer skins, and having at least one margin which is additionally densified and indented below a first side of said composite board product with said outer skin extending to the indented level of said margin on said first side, said margin having an outer edge rounded off from the opposite side of said composite board product around which said skin from said opposite side extends to at least about 50 percent of the thickness of said margin, leaving a further densified core portion exposed.
Claim 9
Dependent Claim
126 words
A composite board product comprising: a core of consolidated and adhered coarse wooden components between a pair of densified parallel outer skins of cellulosic fibers firmly bonded to said core, said composite board product having a first general thickness between said parallel outer skins, and having at least one margin which is additionally densified and indented below a first side of said composite board product with said outer skin extending to the indented level of said margin on said first side, said margin having an outer edge rounded off from the opposite side of said composite board product around which said skin from said opposite side extends to at least about 50 percent of the thickness of said margin, leaving a further densified core portion exposed.
Claim 10
Dependent Claim
29 words
The composite board product according to claim 6 having a similar margin but reversely directed on an opposite edge of said composite board product parallel to said first margin.
Claim 11
Dependent Claim
40 words
In combination with the board product of claim 6, a similar board product having a similar but reversely directed margin on its opposite edge, said reversely directed margin engaging the margin of the first mentioned board product in overlapped relation.
Claim 12
Dependent Claim
90 words
The composite board product according to claim 6 further including one or more indented grooves substantially parallel to said first and second margins and disposed in order between said first and second margins, said grooves having rounded sidewalls substantially corresponding to said rounded edge of said margin but wherein said skin remains unbroken across each of said grooves, said grooves providing an overall pattern similar to the grooved appearance produced with a said margin lapped with respect to a similar but reversed margin of a second such composite board product.
References Cited (Backward Citations)
US1790178A
Cited
US2682083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |