US4826351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid plate of plastic material
Assignee: DR SPIESS KUNSTSTOFF - RECYCLING & Co D - 6719 KLEINKARLBACH FEDERAL REPUBLIC OF GERMANY GmbH
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Filing: 1987-11-02
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Granted: 1989-05-02
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Expires: 2007-11-02
Abstract
Abstract A grid plate of plastic material, with a rough, slippage-impairing top side and a rib-reinforced bottom side. The individual grid plates are kept together by a lockable, but again disconnectable, plug-in connection. The grid plates serve as fastening elements for parking places, road embankments, road ramps, and the like.
Inventors
- 👤 Karl Haberhauer
- 👤 Klaus D. Feyerabend
- 👤 Bruno Heitzmann
- 👤 Alfred Lieberenz
- 👤 Harry Schimmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:33
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/08; E01C9/086; E01C5/00; E01C5/20; E01C9/10; E02; E02D; E02D17/00; E02D17/20; E02D17/205; E01C2201/00; E01C2201/12; Y; Y02; Y02A; Y02A30/00; Y02A30/60; Y10; Y10T; Y10T428/00; Y10T428/16
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
223 words
A grid plate of plastic material, having a rough slippage-preventing top side and a rib-reinforced bottom side, which is adapted to be emplaced as a fastening element for parking places, road embankments, ramps, and the like, comprising: a three dimensional grid plate including an upper face, a lower section opposite said upper face, at least three sides around the perimeter extending from said upper face to said lower section, and plug-in connecting means adapted to be locked together and again disconnectable for connecting together emplaced grid plates including at least one insertable connecting web means projecting horizontally out of at least two side walls of the grid plate in given positions on a first half region of each side wall and extending out beyond the upper face, said connecting web means each having a free end angularly bent hook-shaped into a half-hinge, and at lease one horizontal wall aperture means being provided in an upper portion of said at least two side walls of the grid plate, which horizontal wall aperture means include connecting web means in positions on a second half region of each side wall for engaging respective insertable connecting web means of adjacently arranged grid plates in said given positions while permitting predetermined relative horizontal movement of the grid plates with respect to one another when in an installed position.
Claim 2
Dependent Claim
223 words
A grid plate of plastic material, having a rough slippage-preventing top side and a rib-reinforced bottom side, which is adapted to be emplaced as a fastening element for parking places, road embankments, ramps, and the like, comprising: a three dimensional grid plate including an upper face, a lower section opposite said upper face, at least three sides around the perimeter extending from said upper face to said lower section, and plug-in connecting means adapted to be locked together and again disconnectable for connecting together emplaced grid plates including at least one insertable connecting web means projecting horizontally out of at least two side walls of the grid plate in given positions on a first half region of each side wall and extending out beyond the upper face, said connecting web means each having a free end angularly bent hook-shaped into a half-hinge, and at lease one horizontal wall aperture means being provided in an upper portion of said at least two side walls of the grid plate, which horizontal wall aperture means include connecting web means in positions on a second half region of each side wall for engaging respective insertable connecting web means of adjacently arranged grid plates in said given positions while permitting predetermined relative horizontal movement of the grid plates with respect to one another when in an installed position.
Claim 3
Dependent Claim
138 words
A grid plate according to claim 1, wherein said grid plate includes a rectangular upper face and a rectangular lower section, said side walls including a first and a second opposing side wall and a third and a fourth opposing side wall each perpendicular to the first and second side walls, each of said opposing third and fourth side walls including a first half region closer to said first side wall and including a second half region closer to said second side wall, said first half region of each of said third and fourth side walls and said first wall each including at least one of said connecting web means, said second half region of each of said third and fourth side walls and said second side wall each including said at least one horizontal wall aperture means.
Claim 4
Dependent Claim
77 words
A grid plate according to claim 2, wherein said third and said fourth side walls each have insertable connecting web means and wall aperture means in approximately identical positions from said first side wall to said second side wall, each of said insertable connecting web means of each of said third and fourth side walls being positioned an equal distance from said first side wall as a corresponding wall aperture means spaced from said second side wall.
Claim 5
Dependent Claim
63 words
A grid plate as in claim 3, wherein said first side wall includes only insertable connecting web means and said second wall includes only wall aperture means, said first wall connecting web means being spaced a distance from said third and fourth side walls equal to a distance said second side wall aperture means are spaced from said third and fourth side walls.
Claim 6
Dependent Claim
45 words
A grid plate as in claim 4, wherein said first wall insertable connecting web means free ends point in the direction toward said lower section and said third and fourth wall insertable connecting web means free ends point in the direction toward said upper face.
Claim 7
Dependent Claim
35 words
A grid plate according to claim 3, wherein said hook-shaped angularly bent portions of the free ends of said insertable connecting web means point in the direction toward said upper face of the grid plate.
Claim 8
Dependent Claim
33 words
A grid plate according to claim 3, wherein said wall aperture means are constructed substantially rectangularly shaped and are matched in their dimensions to a cross section of said insertable connecting web means.
Claim 9
Dependent Claim
44 words
A grid plate according to claim 7, wherein said insertable connecting web means are so dimensioned in length up to the hook-shaped angularly bent portion thereof that a freedom of movement of about 15 mm between one another is provided between engaged grid plates.
Claim 10
Dependent Claim
38 words
A grid plate according to claim 8, wherein said side wall regions with said insertable connecting web means include cover strip means extending uninterruptedly over substantially the entire length of the respective half region of the grid plate.
Claim 11
Dependent Claim
27 words
A grid plate according to claim 9, wherein said insertable connecting web means are arranged directly underneath said cover strip means and are formed-on at the same.
Claim 12
Dependent Claim
35 words
A grid plate according to claim 10, wherein said side wall regions including said aperture means are offset step-shaped in downward direction starting from the upper surface of the grid plate toward said lower section.
Claim 13
Dependent Claim
25 words
A grid plate according to claim 11, wherein said offset in conjunction with said cover strip means cover a gap between adjacent engaged grid plates.
Claim 14
Dependent Claim
42 words
A grid plate according to claim 12, wherein said offset includes a first step side extending from said upper face and a second step side extending up from said lower section, said wall aperture means being placed into said second step side.
Claim 15
Dependent Claim
39 words
A grid plate according to claim 13, wherein said insertable connecting web means together with said wall aperture means as well as said rib-reinforcement are so arranged that said grid plate is adapted to be divided into two halves.
Claim 16
Dependent Claim
18 words
A grid plate according to claim 3, wherein said grid plate is made from recycled synthetic resinous material.
Claim 17
Dependent Claim
33 words
A grid plate according to claim 6, wherein said wall aperture means are constructed substantially rectangularly shaped and are matched in their dimensions to a cross section of said insertable connecting web means.
Claim 18
Dependent Claim
44 words
A grid plate according to claim 16, wherein said insertable connecting web means are so dimensioned in length up to the hook-shaped angularly bent portion thereof that a freedom of movement of about 15 mm between one another is provided between engaged grid plates.
Claim 19
Dependent Claim
33 words
A grid plate according to claim 3, wherein said side wall regions with said insertable connecting web means include cover strip means extending uninterruptedly over substantially the entire length of the grid plate.
Claim 20
Dependent Claim
27 words
A grid plate according to claim 18, wherein said insertable connecting web means are arranged directly underneath said cover strip means and are formed-on at the same.
Claim 21
Dependent Claim
31 words
A grid plate according to claim 3, wherein said side wall regions including said aperture means are offset step-shaped in downward direction starting from the upper face of said grid plate.
Claim 22
Dependent Claim
25 words
A grid plate according to claim 20, wherein said offset in conjunction with said cover strip means cover a gap between adjacent engaged grid plates.
Claim 23
Dependent Claim
42 words
A grid plate according to claim 21, wherein said offset includes a first step side extending from said upper face and a second step side extending up from said lower section, said wall aperture means being placed into said second step side.
Claim 24
Dependent Claim
39 words
A grid plate according to claim 3, wherein said insertable connecting web means together with said wall aperture means as well as said rib-reinforcement are so arranged that said grid plate is adapted to be divided into two halves.
Claim 25
Dependent Claim
43 words
A grid plate according to claim 1, wherein said wall aperture means is bounded from above by an upper connecting web means which extends downward and forms a hook-shaped hinge half for engaging adjacent insertable connecting web means projecting from adjacent grid plates.
Claim 26
Dependent Claim
61 words
A grid plate according to claim 24, wherein a plurality of said insertable connecting web means are provided at a spacing from one another at each of said first half regions of said at least two side walls, and wherein a corresponding plurality of said horizontal wall aperture means are provided at the corresponding second half region of said side walls.
Claim 27
Dependent Claim
35 words
A grid plate according to claim 25, wherein said hook-shaped angularly bent portions of the free ends of said insertable connecting web means point in the direction toward said upper face of the grid plate.
Claim 28
Dependent Claim
33 words
A grid plate according to claim 26, wherein said wall aperture means are constructed substantially rectangularly shaped and are matched in their dimensions to a cross section of said insertable connecting web means.
Claim 29
Dependent Claim
44 words
A grid plate according to claim 27, wherein said insertable connecting web means are so dimensioned in length up to the hook-shaped angularly bent portion thereof that a freedom of movement of about 15 mm between one another is provided between engaged grid plates.
Claim 30
Dependent Claim
88 words
A grid plate according to claim 24, wherein said wall aperture means and said insertable connecting web means are configured so as to permit connection of said grid plate to an installed adjacent grid plate only upon tilting of said grid plate with its side remote from the installed grid plate raised and with subsequent insertion of said insertable connecting web means followed by pivoting of the grid plate to a position on the same plane as the installed grid plate to thereby lock the grid plates together.
Claim 31
Dependent Claim
88 words
A grid plate according to claim 25, wherein said wall aperture means and said insertable connecting web means are configured so as to permit connection of said grid plate to an installed adjacent grid plate only upon tilting of said grid plate with its side remote from the installed grid plate raised and with subsequent insertion of said insertable connecting web means followed by pivoting of the grid plate to a position on the same plane as the installed grid plate to thereby lock the grid plates together.
Claim 32
Dependent Claim
88 words
A grid plate according to claim 6, wherein said wall aperture means and said insertable connecting web means are configured so as to permit connection of said grid plate to an installed adjacent grid plate only upon tilting of said grid plate with its side remote from the installed grid plate raised and with subsequent insertion of said insertable connecting web means followed by pivoting of the grid plate to a position on the same plane as the installed grid plate to thereby lock the grid plates together.
Claim 33
Dependent Claim
33 words
A grid plate according to claim 31, wherein said wall aperture means are constructed substantially rectangularly shaped and are matched in their dimensions to a cross section of said insertable connecting web means.
Claim 34
Dependent Claim
44 words
A grid plate according to claim 32, wherein said insertable connecting web means are so dimensioned in length up to the hook-shaped angularly bent portion thereof that a freedom of movement of about 15 mm between one another is provided between engaged grid plates.
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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |