US3844863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repair of wooden articles
Assignee: Publishers Paper Co
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Filing: 1973-05-16
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Granted: 1974-10-29
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Expires: 1993-05-16
Abstract
Abstract A method of repairing a wooden article having an aperture or hole therein such as a knothole, or the result of routing out a defect in the article. The aperture is filled with a filler composition having a flowable liquid consistency, and which is a mixture of cork particles and resin. Because of the consistency of the filler composition, it flows out through gravity completely to fill the peripheral boundaries of the aperture. Through buoyancy, the cork particles tend to stratify in the repaired region prior to hardening of the filler composition. The cork, being a closed cell material, does not absorb the resin. On hardening, a filler plug is formed having a machinability and other characteristics closely matching that of natural wood.
Inventors
- 👤 D Forsythe
- 👤 W Runckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
B; B27; B27G; B27G1/00; C; C08; C08L; C08L97/00; C08L97/02; C09; C09D; C09D5/00; C09D5/34; C08L2205/00; C08L2205/02; Y; Y10; Y10T; Y10T428/00; Y10T428/20; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/24347
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A METHOD OF MANUFACTURING A REPAIRED PLYWOOD PANEL COMPRISING PREPARING A HOLE IN THE OUTER VENEER OF A PANEL IN THE REGION OF THE REPAIR, FILLING SAID HOLE WITH A LIQUID FILLER COMPOSITION COMPRISI G FROM 3 TO 10 PERCENT BY WEIGHT COMMINUTED CORK, AND PERMITTING SAID FILLER COMPOSITION TO HARDEN WITHIN SAID HOLE, WITH SUCH ACCOMPANIED WITH STRATIFICATION RESULTING IN THE CORK RISING TO FORM A LAYER ADJACENT THE OUTER SURFACE OF THE VENEER HAVING A SUBSTANTIALLY GREATER AMOUNT OF CORK THAN AN UNDERLYING LAYER AT THE BOTTOM OF THE HOLE, TO PRODUCE A FILLED REPAIRED REGION.
Claim 2
Independent Claim
98 words
A METHOD OF MANUFACTURING A REPAIRED PLYWOOD PANEL COMPRISING PREPARING A HOLE IN THE OUTER VENEER OF A PANEL IN THE REGION OF THE REPAIR, FILLING SAID HOLE WITH A LIQUID FILLER COMPOSITION COMPRISI G FROM 3 TO 10 PERCENT BY WEIGHT COMMINUTED CORK, AND PERMITTING SAID FILLER COMPOSITION TO HARDEN WITHIN SAID HOLE, WITH SUCH ACCOMPANIED WITH STRATIFICATION RESULTING IN THE CORK RISING TO FORM A LAYER ADJACENT THE OUTER SURFACE OF THE VENEER HAVING A SUBSTANTIALLY GREATER AMOUNT OF CORK THAN AN UNDERLYING LAYER AT THE BOTTOM OF THE HOLE, TO PRODUCE A FILLED REPAIRED REGION.
Claim 3
Independent Claim
104 words
A method of repairing a wooden article having an aperture therein comprising introducing into said aperture a filler composition having a flowable liquid consistency which filler composition is a mixture of Mediterranean cork particles and thermosetting resin, with flowing of said filler composition filling the peripheral boundaries of said aperture, and permitting said filler composition to harden within said aperture with such accompanied with stratification resulting in the cork rising to form a layer adjacent the outer surface of the article having a substantially greater amount of cork than an underlying layer at the bottom of the aperture, to produce a filled repaired region.
Claim 4
Independent Claim
104 words
A method of repairing a wooden article having an aperture therein comprising introducing into said aperture a filler composition having a flowable liquid consistency which filler composition is a mixture of Mediterranean cork particles and thermosetting resin, with flowing of said filler composition filling the peripheral boundaries of said aperture, and permitting said filler composition to harden within said aperture with such accompanied with stratification resulting in the cork rising to form a layer adjacent the outer surface of the article having a substantially greater amount of cork than an underlying layer at the bottom of the aperture, to produce a filled repaired region.
Claim 5
Independent Claim
116 words
A method of repairing a wooden article having an aperture therein which aperture opens to a surface of the article, the method comprising introducing into said aperture a filler composition having a flowable liquid consistency, which filler composition is a mixture of Mediterranean cork particles and thermosetting resin, permitting said composition through gravity to flow so as to fill the peripheral boundaries of the aperture, and then letting the composition harden to form a hardened filler plug of cork material encased in resin, and removing material from the article where it surrounds said plug and from said plug to produce a surface extending across the plug with exposed cork particles in the region of said plug.
Claim 6
Independent Claim
116 words
A method of repairing a wooden article having an aperture therein which aperture opens to a surface of the article, the method comprising introducing into said aperture a filler composition having a flowable liquid consistency, which filler composition is a mixture of Mediterranean cork particles and thermosetting resin, permitting said composition through gravity to flow so as to fill the peripheral boundaries of the aperture, and then letting the composition harden to form a hardened filler plug of cork material encased in resin, and removing material from the article where it surrounds said plug and from said plug to produce a surface extending across the plug with exposed cork particles in the region of said plug.
Claim 7
Dependent Claim
74 words
The method of claim 3, wherein said article is a plywood panel including an outer veneer and a core with a glue line uniting the outer veneer to the core, said aperture is in the outer veneer and extends through said glue line to expose the wood of the core, and said filler composition on being introduced into said aperture flows over the wood of said core and on hardening bonds to the core.
Claim 8
Independent Claim
153 words
A method of repairing a wooden article having an aperture therein opening to a surface of the article comprising introducing into said aperture a filler composition having a flowable liquid consistency, which filler composition is a mixture of Mediterranean cork particles and thermosetting resin with the particles comprising from about 3 to 10 percent by weight cork particles, permitting said composition through gravity to flow so as to fill the peripheral boundaries of said aperture, and subsequently letting the composition harden to form a hardened filler plug of cork particles encased in resin, said hardening occurring after stratification of the cork particles which results by reason of their tendency to rise to the surface of the filler composition on the composition initially being introduced to said aperture, and removing material from the article where it surrounds said plug and the plug to produce a surface extending across the plug with exposed cork particles.
Claim 9
Independent Claim
153 words
A method of repairing a wooden article having an aperture therein opening to a surface of the article comprising introducing into said aperture a filler composition having a flowable liquid consistency, which filler composition is a mixture of Mediterranean cork particles and thermosetting resin with the particles comprising from about 3 to 10 percent by weight cork particles, permitting said composition through gravity to flow so as to fill the peripheral boundaries of said aperture, and subsequently letting the composition harden to form a hardened filler plug of cork particles encased in resin, said hardening occurring after stratification of the cork particles which results by reason of their tendency to rise to the surface of the filler composition on the composition initially being introduced to said aperture, and removing material from the article where it surrounds said plug and the plug to produce a surface extending across the plug with exposed cork particles.
References Cited (Backward Citations)
US2773847A
Cited
US3200030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |