US3676971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tile structure with cruciform shaped foundation supporting tiles
Assignee: Individual
•
Filing: 1969-11-14
•
Granted: 1972-07-18
•
Expires: 1989-11-14
Abstract
Abstract A tile walk or patio in which a plurality of cruciform foundation tiles are laid in a layer without cement with their arms forming drainage sumps; a plurality of surface tiles are then laid on the foundation layer without cement, the surface tiles each overlapping a plurality of foundation tiles and sumps. The foundation tiles are formed with tenons or bosses on their upper surfaces that co-operate, with mortices or sockets formed in the under surface of the surface tiles, to lock the surface tiles from horizontal displacement from the foundation layer and to guide a surface tile, displaced vertically by ice, back to its initial position as the ice melts.
Inventors
- 👤 Edward L Dombroski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:23
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/001; E04; E04F; E04F15/00; E04F15/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A tile structure comprising a layer of foundation tiles, each of said foundation tiles having a cruciform configuration with four equally spaced extending arms, a flat upper surface and a plurality of tenons extending from said upper surface and having converging side surfaces, said foundation tiles being arranged with said arms in abutting relation to form drainage sumps therebetween, and a layer of surface tiles arranged in abutting relation without cement on said layer of foundation tiles, each of said surface tiles overlapping a plurality of said foundation tiles and having a flat lower surface in contact with said flat upper surfaces of said foundation tiles, said flat lower surfaces of said surface tiles having a plurality of mortises therein having configurations mating with the configuration of said tenons, said tenons being received in said mortises to prevent horizontal displacement of said surface tiles and said foundation tiles and to guide vertically displaced surface tiles into horizontal alignment.
Claim 2
Dependent Claim
158 words
A tile structure comprising a layer of foundation tiles, each of said foundation tiles having a cruciform configuration with four equally spaced extending arms, a flat upper surface and a plurality of tenons extending from said upper surface and having converging side surfaces, said foundation tiles being arranged with said arms in abutting relation to form drainage sumps therebetween, and a layer of surface tiles arranged in abutting relation without cement on said layer of foundation tiles, each of said surface tiles overlapping a plurality of said foundation tiles and having a flat lower surface in contact with said flat upper surfaces of said foundation tiles, said flat lower surfaces of said surface tiles having a plurality of mortises therein having configurations mating with the configuration of said tenons, said tenons being received in said mortises to prevent horizontal displacement of said surface tiles and said foundation tiles and to guide vertically displaced surface tiles into horizontal alignment.
Claim 3
Dependent Claim
15 words
The tile structure as recited in claim 1 wherein said tenons have a pyramidal configuration.
References Cited (Backward Citations)
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |