US3856600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Veneer article and process of manufacturing plywood
Assignee: Coe Manufacturing Co
•
Filing: 1972-12-07
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Granted: 1974-12-24
•
Expires: 1992-12-07
Abstract
Abstract A process of manufacturing a plywood panel which includes the steps of producing a plurality of green veneer sheets of random size or widths less than the length or width of the plywood panel to be manufactured with the grain of the wood running lengthwise of the sheets and having a typical moisture content from about 30% to about 300% of the fiber weight, stitching a plurality of the green sheets together in side-by-side relation across the grain of the wood with thread having shrinkage characteristics about the same as that of the green veneer, typically 5% to 10% to produce an assemblage of sheets slightly larger than the plywood panel to be manufactured, drying the assemblages of sheets in conventional veneer driers, and subsequently assembling the dried assemblies of sheets with other veneer sheets or assemblages of sheets into a plywood panel.
Inventors
- 👤 F Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
B; B27; B27D; B27D1/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
211 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the sideby-side green veneer sheets transversely of the grain of the wood and of the length of the green veneer sheets intermediate their ends with thread to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together sideby-side green veneer sheets to reduce the moisture content of the veneer and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 2
Dependent Claim
211 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the sideby-side green veneer sheets transversely of the grain of the wood and of the length of the green veneer sheets intermediate their ends with thread to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together sideby-side green veneer sheets to reduce the moisture content of the veneer and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 3
Dependent Claim
227 words
In the manufacture of rectangular plywood panels Having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread having shrink characteristics about the same as that of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 4
Dependent Claim
227 words
In the manufacture of rectangular plywood panels Having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread having shrink characteristics about the same as that of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 5
Dependent Claim
255 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets having a moisture content in all areas of not less than about 30% by weight transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread which will shrink about the same amount as the veneer during subsequent drying of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer to from about 2% to 12% by weight and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dreed veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 6
Dependent Claim
255 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets having a moisture content in all areas of not less than about 30% by weight transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread which will shrink about the same amount as the veneer during subsequent drying of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length and width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer to from about 2% to 12% by weight and produce an assemblage of connected side-by-side dried veneer sheets, applying adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dreed veneer sheets having adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 7
Dependent Claim
259 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets having a moisture content in all areas of not less than about 30% by weight transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread which will shrink about the same amount as the veneer during subsequent drying of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length aNd width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer to from about 2% to 7% by weight and produce an assemblage of connected side-by-side dried veneer sheets, applying a phenolic resin adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having similar adhesive thereon with other dried veneer sheets into a plywood panel.
Claim 8
Dependent Claim
259 words
In the manufacture of rectangular plywood panels having length, width and thickness dimensions the steps of producing a plurality of green veneer sheets slightly longer than one of the dimensions other than the thickness dimension of a plywood panel to be produced and of random width less than the other dimension of the panel and with the grain of the wood running lengthwise of the green veneer sheets, arranging a plurality of the green veneer sheets in side-by-side relation, machine sewing the side-by-side green veneer sheets having a moisture content in all areas of not less than about 30% by weight transversely of the grain of the wood and of the length of the green veneer sheets adjacent to their end and intermediate their ends with thread which will shrink about the same amount as the veneer during subsequent drying of the veneer to produce a plurality of continuous rows of thread stitches connecting the side-by-side green veneer sheets to produce an assemblage of side-by-side green veneer sheets larger in length aNd width than the length and width of the panel to be produced, drying the assemblage of stitched together side-by-side green veneer sheets to reduce the moisture content of the veneer to from about 2% to 7% by weight and produce an assemblage of connected side-by-side dried veneer sheets, applying a phenolic resin adhesive material to the assemblage of connected side-by-side dried veneer sheets, and subsequently assembling the assemblage of connected side-by-side dried veneer sheets having similar adhesive thereon with other dried veneer sheets into a plywood panel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |