Patent US4555292A successfully refreshed from Google Patents.
US4555292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a non-skid surface wood panel
Assignee: THOM-MCI Inc A CORP OF
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Filing: 1984-02-16
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Granted: 1985-11-26
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Expires: 2004-02-16
Abstract
Abstract The present invention defines two methods of forming a non-skid-surfaced wood panel, preferably plywood, which is treated with various coats or layers of epoxy resin, together with a finished surface coat of polyurethane combined with a hard-grit abrasive material evenly spread within the surface coat, so as to provide the non-skid substance that establishes a unique and wear-resistant structure for areas subjected to heavy foot traffic, the invention being particularly suitable for use on decking in marine environments.
Inventors
- 👤 Thomas L. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:10
CPC Classifications
B; B32; B32B; B32B13/00; B32B13/04; B32B13/10; B32B27/00; B32B27/18; B32B27/20; E; E04; E04F; E04F15/00; E04F15/02; E04F15/02172; E04F15/04; B32B2255/00; B32B2255/08; B32B2255/26; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24942; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
266 words
A method of forming a non-skid-surfaced plywood panel having a permanent but flexible bond between said plywood and the non-skid elements thereof, wherein the method comprises the steps of: providing a sheet of plywood having substantially flat opposite surfaces; applying to each of said surfaces a first coat of low-viscosity, catalized, epoxy resin so as to penetrate and seal said surfaces; applying a second coat of a catalyzed epoxy resin to the upper surface of said plywood panel prior to the drying of said first coat of epoxy resin, said second coat having a higher viscosity than said first coat; providing a fiber/cement panel having substantially the same configuration as said plywood panel; applying a third coat consisting of the same catalyzed epoxy resin used in said second coat to one surface of said fiber/cement panel; placing said coated surfaces of each panel into opposing engagement with each other; applying pressure to said panels, whereby excess epoxy material is forced from between said panels; allowing said epoxy between said panels to dry; applying at a predetermined thickness a fourth coat of pigmented polyurethane material to form a surface layer over the exposed surface of said fiber/cement panel; disseminating a hard grit material over said fourth coat while said polyurethane material is still in a wet stage, said grit material being of a size greater than the thickness of said fourth coat, so as to allow a portion of said grit to be exposed above the surface of said fourth coat; and allowing said polyurethane coat to dry, thereby securing said grit material within said fourth coat.
Claim 2
Independent Claim
266 words
A method of forming a non-skid-surfaced plywood panel having a permanent but flexible bond between said plywood and the non-skid elements thereof, wherein the method comprises the steps of: providing a sheet of plywood having substantially flat opposite surfaces; applying to each of said surfaces a first coat of low-viscosity, catalized, epoxy resin so as to penetrate and seal said surfaces; applying a second coat of a catalyzed epoxy resin to the upper surface of said plywood panel prior to the drying of said first coat of epoxy resin, said second coat having a higher viscosity than said first coat; providing a fiber/cement panel having substantially the same configuration as said plywood panel; applying a third coat consisting of the same catalyzed epoxy resin used in said second coat to one surface of said fiber/cement panel; placing said coated surfaces of each panel into opposing engagement with each other; applying pressure to said panels, whereby excess epoxy material is forced from between said panels; allowing said epoxy between said panels to dry; applying at a predetermined thickness a fourth coat of pigmented polyurethane material to form a surface layer over the exposed surface of said fiber/cement panel; disseminating a hard grit material over said fourth coat while said polyurethane material is still in a wet stage, said grit material being of a size greater than the thickness of said fourth coat, so as to allow a portion of said grit to be exposed above the surface of said fourth coat; and allowing said polyurethane coat to dry, thereby securing said grit material within said fourth coat.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |