Patent US4376748A successfully refreshed from Google Patents.
US4376748A
Expired / Lapsed
US
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Method and apparatus for forming a plate with at least one profiled border
Assignee: Individual
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Filing: 1980-11-06
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Granted: 1983-03-15
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Expires: 2000-11-06
Abstract
Abstract A method of forming a slab having at least one profiled edge comprising a base sheet and a cover sheet connected herewith, the cover sheet being partly connected with the base sheet in a manner such that a peripheral part of the cover sheet protrudes beyond the edge of the base sheet, in the proximity of which the profiled edge has to be formed, comprising positioning of the base sheet with the cover plate partly connected herewith with respect to a mould having the profile of the profiled edge and nestling an outer surface of the peripheral part of the cover sheet against the mold, filling out a space bounded by the peripheral part of the cover sheet and the edge of the base sheet with curable filling means adhering to the two sheets, curing of the filling agent and removing the slab from the mold.
Inventors
- 👤 Waltherus J. van Erven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:05
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C45/00; B29C45/14; B29C45/14336; B29C45/14377; B29C63/00; B29C63/02; B29C63/04; B29C70/00; B29C70/68; B29C70/74; B29C70/76; B29C70/763; B29D; B29D99/00; B29D99/0039; B29L; B29L2031/00; B29L2031/44; B29L2031/441; Y; Y10; Y10S; Y10S425/00; Y10S425/812; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T156/1043; Y10T156/1044; Y10T156/1046
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
196 words
A method of forming a slab having at least one profiled edge comprising a base sheet and a cover sheet connected herewith, the cover sheet being partly connected with the base sheet in a manner such that a portion of the cover sheet protrudes beyond the edge of the base sheet, in the proximity of which the profiled edge is to be formed characterized by the following successive steps: a. positioning the base sheet, with a portion of the cover sheet in direct adhering contact with said base sheet such that a second portion of said sheet protrudes beyond the edge of said base sheet in a mold cavity having a desired configuration for forming said profiled edge and engaging a surface of said cover sheet remote from said base sheet against a mold wall defining said cavity, while deforming the protruding portion of said cover sheet out of its plane; b. filling out a space bounded by the protruding part of the cover sheet and the edge of the base sheet with curable filling material that adheres to the two sheets, c. curing of the filling material and d. removing the slab from the mold.
Claim 2
Independent Claim
196 words
A method of forming a slab having at least one profiled edge comprising a base sheet and a cover sheet connected herewith, the cover sheet being partly connected with the base sheet in a manner such that a portion of the cover sheet protrudes beyond the edge of the base sheet, in the proximity of which the profiled edge is to be formed characterized by the following successive steps: a. positioning the base sheet, with a portion of the cover sheet in direct adhering contact with said base sheet such that a second portion of said sheet protrudes beyond the edge of said base sheet in a mold cavity having a desired configuration for forming said profiled edge and engaging a surface of said cover sheet remote from said base sheet against a mold wall defining said cavity, while deforming the protruding portion of said cover sheet out of its plane; b. filling out a space bounded by the protruding part of the cover sheet and the edge of the base sheet with curable filling material that adheres to the two sheets, c. curing of the filling material and d. removing the slab from the mold.
Claim 3
Dependent Claim
43 words
A method as claimed in claim 1, characterized by causing the edge of the base sheet to project into a mold part forming the profiled edge when positioning the base sheet with the cover sheet partly connected herewith with respect to the mold.
Claim 4
Dependent Claim
40 words
A method as claimed in claim 1 or 2, characterized in that before the cover sheet is connected with the base sheet the edge of the base sheet is roughly profiled in accordance with the profile of the profiled edge.
Claim 5
Dependent Claim
58 words
A method as claimed in claim 2 characterized in that before the cover sheet is connected with a bonding side of the base sheet, a groove is recessed in the area of its edge to be accommodated in a profiled edge of the sheet, said groove having an interface extending transversely of said side and joining said side.
Claim 6
Independent Claim
30 words
A method as claimed in claims 1, 2 or 4 characterized in that as a base sheet is used a wooden sheet, for example, of plywood or compressed wood fibre.
Claim 7
Independent Claim
28 words
A method as claimed in claims 1, 2 or 4 characterized in that as a cover sheet is used a thermo-hardening synthetic resin sheet of a postformable type.
Claim 8
Independent Claim
40 words
A method as claimed in claims 1, 2 or 4 characterized in that the outer face of the protruding portion of the cover plate is nestled against a mold, the profile of which has the shape of a water-arresting rim.
Claim 9
Independent Claim
31 words
A method as claimed in claims 1, 2 or 4 characterized in that the curable filling agent is pressure fed into the space between the cover sheet and the base sheet.
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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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |