US3817012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic tile panel construction
Assignee: American Olean Tile Co Inc
•
Filing: 1972-03-20
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Granted: 1974-06-18
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Expires: 1992-03-20
Abstract
Abstract A prefabricated ceramic tile building panel includes a pregrouted sheet of ceramic tile and a layer of rigid plastic foam. The plastic is foamed in place on the tile sheet to provide a unitary, light weight, self supporting, water proof panel. For additional strength, a fiber-reinforced paper backing sheet is provided along the rear surface of the foam layer. A novel panel mounting arrangement permits the rapid installation of the prefabricated panels by those unskilled in tile installation.
Inventors
- 👤 H Wack
- 👤 K Claus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:46
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0889; E04F13/0801; E04F13/0862; E04F19/00; E04F19/02; E04F19/06; E04F19/062; E04F19/064; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
A lightweight prefabricated ceramic tile construction panel comprising a pregrouted tile sheet, a foam backer and a paper backing sheet, said tile sheet comprising a plurality of ceramic tile elements geometrically arranged to form a planar array, the edges of each said tile and having a beveled portion adjacent the front face thereof and a non-beveled portion adjacent the rear face thereof, the non-beveled portion of each said tile edge comprising a planar surface perpendicular to said rear face, the beveled portion of each said tile edge comprising a substantially planar surface intersecting said non-beveled portion surface and extending inwardly at an acute angle therefrom to intersect said tile element front face, the edges of adjacent tile elements abutting along the full length of their nonbeveled edge portions, elastomeric grouting disposed between and bonding the beveled edge portions of adjacent tile elements, said foam backer comprising a layer of rigid closed-cell plastic foam bonded to the rear face of said planar array of tile elements by a foamed in situ bond, said paper backing sheet being bonded to the rear surface of said foam backer by a foamed in situ bond.
Claim 2
Dependent Claim
191 words
A lightweight prefabricated ceramic tile construction panel comprising a pregrouted tile sheet, a foam backer and a paper backing sheet, said tile sheet comprising a plurality of ceramic tile elements geometrically arranged to form a planar array, the edges of each said tile and having a beveled portion adjacent the front face thereof and a non-beveled portion adjacent the rear face thereof, the non-beveled portion of each said tile edge comprising a planar surface perpendicular to said rear face, the beveled portion of each said tile edge comprising a substantially planar surface intersecting said non-beveled portion surface and extending inwardly at an acute angle therefrom to intersect said tile element front face, the edges of adjacent tile elements abutting along the full length of their nonbeveled edge portions, elastomeric grouting disposed between and bonding the beveled edge portions of adjacent tile elements, said foam backer comprising a layer of rigid closed-cell plastic foam bonded to the rear face of said planar array of tile elements by a foamed in situ bond, said paper backing sheet being bonded to the rear surface of said foam backer by a foamed in situ bond.
Claim 3
Dependent Claim
17 words
The invention as claimed in claim 1 wherein said paper backing sheet comprises a fiber-reinforced paper sheet.
Claim 4
Dependent Claim
17 words
The invention as claimed in claim 1 wherein said plastic foam backer comprises a closed-cell polyurethane foam.
Claim 5
Dependent Claim
40 words
The invention as claimed in claim 1 wherein said beveled portion of each tile edge comprises substantially two thirds of the thickness of the tile, and wherein said non-beveled portion comprises substantially one third of the thickness of the tile.
Claim 6
Dependent Claim
15 words
The invention as claimed in claim 1 wherein said tile elements have a rectangular configuration.
Claim 7
Dependent Claim
15 words
The invention as claimed in claim 1 wherein said tile elements have a square configuration.
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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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |