Patent US4426820A successfully refreshed from Google Patents.
US4426820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel for a composite surface and a method of assembling same
Assignee: PHIPARD HARVEY F JR
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Filing: 1981-02-17
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Granted: 1984-01-24
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Expires: 2001-02-17
Abstract
Abstract A panel interconnectable with like panels for use in forming a sports surface has a substantially rectangular and planar member and an edge connector at at least one set of opposite edges including a first locking member extending from the lower surface of the panel at one edge and having a groove extending inwards from the end thereof and towards the one edge and terminating below the upper surface. A second locking member extending from the upper surface of the panel at the other edge, has a projection configured to engage in the groove to mate with the first locking member at the one edge of an adjacent panel to align the upper and lower surfaces of the panels. A plurality of these panels are advantageously assembled by the method according to the present invention to form a sports surface.
Inventors
- 👤 Heinz Terbrack
- 👤 Josef Terbrack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:11
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/10; E01; E01C; E01C13/00; E01C13/10; E01C13/107; E04F2201/00; E04F2201/01; E04F2201/0153; E04F2201/05; E04F2201/0517; E04F2201/0523
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
273 words
A panel interconnectable with similar panels for forming a surface, the panel comprising: means for forming opposite, conncted, first and second surfaces having edges, at least the first surface being planer, whereby the first surface forms upon interconnection of the panel with similar panels a section of the first-mentioned surface; a first locking member extending from the second surface of the panel along a first edge portion of the panel, the first locking member having a groove inwards of the first edge portion opening toward the first surface of the panel and terminating on its outer side therebelow, the groove having a planer base generally parallel to the first surface of the panel and inner and outer side walls generally angled similarly to the planer base, the inner side wall extending toward the outer side wall and having a portion which meets the planer base normally for forming, in combination with the planer base a truncated wedge space, the angle of the inner side wall to the planer base being smaller than that of the outer side wall; and a second locking member extending from the first surface of the panel along a second edge portion of the panel, the second locking member having a configuration facing the second surface of the panel matable with the first locking member, the configuration being positioned relative to the first surface of the panel such that the first surface of the panel would align with the same if the configuration were mated with the first locking member, whereby, when similar panels having mating edge portions are interconnected into the first-mentioned surface, the first-mentioned surface is planer.
Claim 2
Dependent Claim
273 words
A panel interconnectable with similar panels for forming a surface, the panel comprising: means for forming opposite, conncted, first and second surfaces having edges, at least the first surface being planer, whereby the first surface forms upon interconnection of the panel with similar panels a section of the first-mentioned surface; a first locking member extending from the second surface of the panel along a first edge portion of the panel, the first locking member having a groove inwards of the first edge portion opening toward the first surface of the panel and terminating on its outer side therebelow, the groove having a planer base generally parallel to the first surface of the panel and inner and outer side walls generally angled similarly to the planer base, the inner side wall extending toward the outer side wall and having a portion which meets the planer base normally for forming, in combination with the planer base a truncated wedge space, the angle of the inner side wall to the planer base being smaller than that of the outer side wall; and a second locking member extending from the first surface of the panel along a second edge portion of the panel, the second locking member having a configuration facing the second surface of the panel matable with the first locking member, the configuration being positioned relative to the first surface of the panel such that the first surface of the panel would align with the same if the configuration were mated with the first locking member, whereby, when similar panels having mating edge portions are interconnected into the first-mentioned surface, the first-mentioned surface is planer.
Claim 3
Dependent Claim
27 words
The panel according to claim 1, and further comprising a recess correspondingly positioned at each locking member and configured to receive respective postions of a U-shaped clamp.
Claim 4
Dependent Claim
26 words
The panel according to claim 2, and further comprising an indentation in the second surface of the panel for receiving the central portion of the clamp.
Claim 5
Dependent Claim
39 words
The panel according to claim 3, and further comprising second means for forming a joint on other edge portions of the panel and recesses thereat extending obliquely to the first surface to receive a clamp having ends bent inwards.
Claim 6
Dependent Claim
56 words
The panel according to claim 1, and further comprising second means for forming a groove and tongue joint on other edge portions of the panel and recesses in the second surface of the panel adjacent and parallel to the other edge portions and extending normal to the first surface of the panel to receive a clamp.
Claim 7
Dependent Claim
25 words
The panel according to claim 4 or 5, wherein the first locking member and second means intersect at at least two corners of the panel.
Claim 8
Dependent Claim
14 words
The panel according to claim 1, wherein the inner side wall is arcuately convex.
Claim 9
Dependent Claim
32 words
The panel according to claim 1, wherein the panel is rectangular and comprising the first and second locking members on edge portions which intersect at at least two corners of the panel.
Claim 10
Dependent Claim
15 words
A kit for forming a surface somprising a plurality of panels according to claim 8.
Claim 11
Independent Claim
100 words
A method of assembling a surface comprising providing, a first panel, then inserting a second locking member of a second panel in an inclined position into a first locking member of said first panel, subsequently engaging, while maintaining said inclined position, a second locking member of a third panel into a first locking member said second panel, and upon joining said second and third panels in their inclined position, inserting a second locking member of the third panel into the aforementioned first locking member of the first panel and simultaneously lowering both second and third panels into a horizontal position.
Claim 12
Independent Claim
100 words
A method of assembling a surface comprising providing, a first panel, then inserting a second locking member of a second panel in an inclined position into a first locking member of said first panel, subsequently engaging, while maintaining said inclined position, a second locking member of a third panel into a first locking member said second panel, and upon joining said second and third panels in their inclined position, inserting a second locking member of the third panel into the aforementioned first locking member of the first panel and simultaneously lowering both second and third panels into a horizontal position.
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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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |