Patent US4823929A successfully refreshed from Google Patents.
Patent US3827818A successfully refreshed from Google Patents.
US3827818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete tile
Assignee: BRETON BV
•
Filing: 1973-01-02
•
Granted: 1974-08-06
•
Expires: 1993-01-02
Abstract
Abstract Concrete tile in which a rubber or synthetic-resin cover plate is anchored and provided in the side facing the tile with ridges forming hollow spaces with the tile and in which the anchorage is formed by anchor elements of a hard material inserted into the side rims of the cover layer.
Inventors
- 👤 J Ruyters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:05
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/22; E01C5/226; E01C13/00; E01C13/04; E01C13/045; E04; E04F; E04F15/00; E04F15/02; E04F15/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
181 words
A tile element for playgrounds and similar areas where the need for a protective cushioning surface exists, said tile element comprising in combination: a tile body made of a resilient material such as rubber or a synthetic resinous material, said tile body having a cover plate portion provided with a circumferentially extending skirt depending from said cover plate portion and a plurality of rib members depending from said cover plate portion within the confines of said skirt to present intervening cushion spaces; plate means located within the confines of said skirt in general parallelism with said cover plate portion and in proximity to said rib members for defining a parting plane isolating said cushion spaces from concrete underlying said plate means; said skirt having at least portions thereof projecting below said plate means to define concrete-engaging portions thereof; and rigid anchoring members carried by said concrete-engaging portions of said skirt below said plate means, said anchoring members having portions projecting inwardly of said skirt below said plate means so as to anchor the tile element to concrete below said plate means.
Claim 2
Dependent Claim
181 words
A tile element for playgrounds and similar areas where the need for a protective cushioning surface exists, said tile element comprising in combination: a tile body made of a resilient material such as rubber or a synthetic resinous material, said tile body having a cover plate portion provided with a circumferentially extending skirt depending from said cover plate portion and a plurality of rib members depending from said cover plate portion within the confines of said skirt to present intervening cushion spaces; plate means located within the confines of said skirt in general parallelism with said cover plate portion and in proximity to said rib members for defining a parting plane isolating said cushion spaces from concrete underlying said plate means; said skirt having at least portions thereof projecting below said plate means to define concrete-engaging portions thereof; and rigid anchoring members carried by said concrete-engaging portions of said skirt below said plate means, said anchoring members having portions projecting inwardly of said skirt below said plate means so as to anchor the tile element to concrete below said plate means.
Claim 3
Dependent Claim
41 words
A tile element as defined in claim 1 wherein said anchoring members are in the form of studs each having a head substantially flush with the outer surface of said skirt and a shank portion projecting horizontally inwardly of said skirt.
Claim 4
Dependent Claim
15 words
A tile element as defined in claim 1 wherein said anchoring members are horizontally disposed.
Claim 5
Dependent Claim
29 words
A tile element as defined in claim 3 wherein said skirt is circumferentially continuous both throughout the region above said plate means and the region below said plate means.
Claim 6
Dependent Claim
20 words
A tile element as defined in claim 1 wherein said rib members are in the form of concentric circular ribs.
Claim 7
Dependent Claim
27 words
A tile element as defined in claim 1 wherein said rib members are arranged in linear patterns with separate, spaced rib members being arranged along common lines.
Claim 8
Dependent Claim
15 words
A tile element as defined in claim 6 wherein said linear patterns are concentric circles.
Claim 9
Dependent Claim
29 words
A tile element as defined in claim 6 wherein said linear patterns are straight lines intersecting at right angles, each rib element being spaced from all other rib elements.
Claim 10
Dependent Claim
15 words
A tile element as defined in claim 5 wherein said anchoring members are horizontally disposed.
Claim 11
Dependent Claim
15 words
A tile element as defined in claim 7 wherein said anchoring members are horizontally disposed.
Claim 12
Dependent Claim
15 words
A tile element as defined in claim 8 wherein said anchoring members are horizontally disposed.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |