US5527128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground covering
Assignee: Portapath International Ltd
•
Filing: 1995-05-26
•
Granted: 1996-06-18
•
Expires: 2015-05-26
Abstract
Abstract A ground covering is provided by linking together individual elements; the elements each comprise a first portion and a second portion linked by a hinge allowing the connected elements to be rolled up in the form of a carpet for easy storage and transport.
Inventors
- 👤 Christopher C. Rope
- 👤 Pamela A. Rope
- 👤 Ian M. D. Gaylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/20; E01C2201/00; E01C2201/12; E01C2201/16; Y; Y10; Y10T; Y10T428/00; Y10T428/16
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
190 words
An element for linking together with identical elements to form a ground covering for protecting ground on which it is laid and for providing a useable surface such as a roadway, walkway or floor, which element is integral and comprises: a first portion comprising a base for engaging the ground and an upper surface for forming part of the said useable surface; a second portion lying adjacent to the first portion; hinge means connecting the first portion and the second portion for permitting the said first and second portions to pivot with respect to each other about an axis extending substantially parallel to the said upper surface of the first portion; and first and second linking means provided respectively on the said first and second portions, said first linking means for cooperating with a second linking means of an adjacent identical ground covering element to join such elements together and said second linking means for cooperating with a first linking means of a further adjacent identical ground covering element to join such elements together, whereby a number of such elements can be joined together to form the said ground covering.
Claim 2
Dependent Claim
190 words
An element for linking together with identical elements to form a ground covering for protecting ground on which it is laid and for providing a useable surface such as a roadway, walkway or floor, which element is integral and comprises: a first portion comprising a base for engaging the ground and an upper surface for forming part of the said useable surface; a second portion lying adjacent to the first portion; hinge means connecting the first portion and the second portion for permitting the said first and second portions to pivot with respect to each other about an axis extending substantially parallel to the said upper surface of the first portion; and first and second linking means provided respectively on the said first and second portions, said first linking means for cooperating with a second linking means of an adjacent identical ground covering element to join such elements together and said second linking means for cooperating with a first linking means of a further adjacent identical ground covering element to join such elements together, whereby a number of such elements can be joined together to form the said ground covering.
Claim 3
Dependent Claim
24 words
A ground covering element according to claim 1, wherein said second portion includes an upper surface for forming part of the said useable surface.
Claim 4
Dependent Claim
29 words
A ground covering element according to claim 1, wherein the axis of the said hinge means lies within the plane of the said upper surface of the first portion.
Claim 5
Dependent Claim
25 words
A ground covering element as claimed in claim 3 wherein said hinge means extends along an edge of the upper surface of the first portion.
Claim 6
Dependent Claim
34 words
A ground covering element as claimed in claim 1, wherein the first and second linking means comprises a male member and a female member that can be engaged together thereby linking adjacent elements together.
Claim 7
Dependent Claim
21 words
A ground covering element as claimed in claim 5, which includes means for retaining the male and female members in engagement.
Claim 8
Dependent Claim
58 words
A ground covering element as claimed in claim 6, wherein the retaining means comprises a resilient tab provided on one of the said members and a corresponding recess provided in the other of the said members, said tab and recess being such that the tab engages in the recess to prevent the male and female members being disengaged.
Claim 9
Dependent Claim
51 words
A ground engaging element as claimed in claim 7, wherein the female element comprises a flexible wall such that two linked elements can be disengaged by pivoting the elements to flex the said wall and release the tab from the recess thereby allowing the male and female members to be separated.
Claim 10
Dependent Claim
102 words
A ground covering element as claimed in claim 1, wherein third and fourth linking means are provided along opposed sides of the element, said third and fourth linking means being provided along different sides of the element to the first and second linking means, said third linking means for cooperating with a fourth linking means of an identical adjacent ground covering element to join the elements together and said fourth linking means for cooperating with a third linking means of an identical adjacent ground covering element to join the elements together, whereby adjacent ground forming elements can be linked side by side.
Claim 11
Dependent Claim
34 words
A ground covering element as claimed in claim 9, wherein the third and fourth linking means comprises a male member and a female member that can be engaged together thereby linking adjacent elements together.
Claim 12
Dependent Claim
21 words
A ground covering element as claimed in claim 10, which includes means for retaining the male and female members in engagement.
Claim 13
Dependent Claim
58 words
A ground covering element as claimed in claim 12, wherein the retaining means comprises a resilient tab provided on one of the said members and a corresponding recess provided in the other of the said members, said tab and recess being such that the tab engages in the recess to prevent the male and female members being disengaged.
Claim 14
Dependent Claim
51 words
A ground engaging element as claimed in claim 12, wherein the female element comprises a flexible wall such that two linked elements can be disengaged by pivoting the elements to flex the said wall and release the tab from the recess thereby allowing the male and female members to be separated.
Claim 15
Dependent Claim
24 words
A ground covering element as claimed in claim 9, wherein the third linking means is connected to the first portion by a hinge means.
Claim 16
Dependent Claim
51 words
Ground covering comprising a plurality of elements as claimed in claim 1, said elements being joined to provide a roadway, walkway or floor by engaging the first linking means of each element with the second linking means of an adjacent element, whereby the said roadway, walkway or floor is built up.
Claim 17
Dependent Claim
13 words
Ground covering as claimed in claim 15, in the form of a roll.
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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) | 1999-06-18 | 1999-12-18 | 2000-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-18 | 2003-12-18 | 2004-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-18 | 2007-12-18 | 2008-06-18 | $7700.00 | Window Closed / Lapsed |