Patent US5476339A successfully refreshed from Google Patents.
US5476339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Access pathway for deployment over uneven terrain surfaces that are resistant to the rolling traction on a wheelchair
Assignee: Individual
•
Filing: 1993-11-26
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Granted: 1995-12-19
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Expires: 2013-11-26
Abstract
Abstract A pathway for providing the transit of a wheelchair, including a person therein, over an uneven terrain surface that resists the rolling traction of a wheelchair, comprising a longitudinally extended flexible mat-like pathway configured such that the surface of the pathway is relatively porous with respect to the terrain surface, such as by providing therein a plurality of holes, and is capable of receiving thereon, at opposite side sections thereof, the front and side wheels of each side of a wheelchair. The pathways may be interconnected to pod-like landing sites.
Inventors
- 👤 Edwin M. Baranowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:00
CPC Classifications
A; A61; A61G; A61G3/00; A61G3/02; A61G3/06; A61G3/061; E; E01; E01C; E01C9/00; E01C9/08
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
137 words
A pathway enabling transit of a four-wheeled wheelchair along a route over an uneven terrain surface formed from matter that is resistant to the rolling traction of the wheelchair, comprising a pair of longitudinally extended flexible pathways traversing the route, each having a width capable of receiving thereon the front and side wheels at one side of the wheelchair, said paths being essentially parallel to and separated apart from each other a sufficient lateral distance such that the pathways are capable of separately receiving the front and rear side wheels on each opposite side of the wheelchair, said pathways being formed from a material that is relatively porous with respect to matter forming the terrain surface said pathways being further connected and maintained the predetermined distance apart by spacer sections at longitudinal distance intervals along the route.
Claim 2
Dependent Claim
137 words
A pathway enabling transit of a four-wheeled wheelchair along a route over an uneven terrain surface formed from matter that is resistant to the rolling traction of the wheelchair, comprising a pair of longitudinally extended flexible pathways traversing the route, each having a width capable of receiving thereon the front and side wheels at one side of the wheelchair, said paths being essentially parallel to and separated apart from each other a sufficient lateral distance such that the pathways are capable of separately receiving the front and rear side wheels on each opposite side of the wheelchair, said pathways being formed from a material that is relatively porous with respect to matter forming the terrain surface said pathways being further connected and maintained the predetermined distance apart by spacer sections at longitudinal distance intervals along the route.
Claim 3
Dependent Claim
45 words
The pathway of claim 1 in which the separation distance between the paths forms an opening permitting access to a footpath in the terrain surface for an assistant who assists the person in the wheelchair over the route in the terrain defined by the pathway.
Claim 4
Dependent Claim
17 words
The pathway of claim 1, including an upwardly extending side curb extending from a longitudinal edge thereof.
Claim 5
Dependent Claim
21 words
The pathway of claim 1 anchored at a terminal, longitudinal end section thereof to a fixed support in the terrain environment.
Claim 6
Dependent Claim
23 words
The pathway of claim 1 formed from a flexible material capable of being wound into a roll when not extended over the terrain.
Claim 7
Dependent Claim
41 words
The pathway of claim 5 comprising a longitudinally extended flexible mat material sufficient in length to extend from Point A to Point B such that a route between the two points is formed when the material is unrolled over the terrain.
Claim 8
Dependent Claim
12 words
The pathway of claim 5 formed from a metal chain link material.
Claim 9
Dependent Claim
11 words
The pathway of claim 5 formed from a wire mesh material.
Claim 10
Dependent Claim
20 words
The pathway of claim 5 formed from a flexible material including therein a plurality of holes in a perforated configuration.
Claim 11
Dependent Claim
35 words
The pathway of claim 1 including a plurality of holes in the material which permit the pathways to be conformable to the terrain surface and which allow matter of the terrain surface to migrate therethrough.
Claim 12
Dependent Claim
12 words
The pathway of claim 10 in which the holes are substantially curvilinear.
Claim 13
Dependent Claim
15 words
The pathway of claim 10 in which the holes are formed in a grid-like pattern.
Claim 14
Dependent Claim
11 words
The pathway of claim 10 in which the holes are multi-sided.
Claim 15
Dependent Claim
32 words
The pathway of claim 10 in which the aggregate area of the holes is from approximately 20% to approximately 80% of the surface area otherwise defined by the material of the pathway.
Claim 16
Dependent Claim
13 words
The pathway of claim 1 formed from a material including a flexible polymer.
Claim 17
Dependent Claim
11 words
The pathway of claim 15 formed from a UV resistant polymer.
Claim 18
Dependent Claim
13 words
The pathway of claim 1 formed from a material comprising a fiber composition.
Claim 19
Dependent Claim
54 words
The pathway of claim 1 in combination with a destination pod to which the route leads, the pod being at a location on the terrain distant from the beginning point of the route, the destination pod comprising an extended wheelchair tractionable surface on the terrain sufficiently large to allow positional movement of a wheelchair.
Claim 20
Dependent Claim
64 words
The pathway of claim 1 in which the pathways are formed from a mat material including a plurality of nibs downwardly projecting toward the terrain surface from the lower surface of the mat material along an extended length and width of the material and with respect to which, the matter of the terrain surface migrates upwardly to the lower surface of the mat material.
Claim 21
Dependent Claim
21 words
The pathway of claim 19 in which the mat includes a plurality of openings in a pattern in the surface thereof.
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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) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |