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US5870788A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable ramp device

Assignee: Individual
•
Filing: 1997-06-25
•
Granted: 1999-02-16
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Expires: 2017-06-25
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Abstract

Abstract A portable ramp for use in allowing access for the disabled, in a wheelchair, to enter an automobile, elevated area and the like or for similar entry use by a pet. The ramp is comprised of a platform member having folding legs and a ramp hingedly attached thereto with ramp elements, each having a bevelled end for selective length placement of ramp elements on a ground surface (with other non-used elements being folded or positioned within the elements being used for the ramp). With the ramp elements being foldable into each other and the platform legs being foldable thereinto, the ramp element and platform are foldable into a readily carryable attache configuration.

Inventors

  • 👤 Roy T. Witkin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 02:44
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/30; A; A01; A01K; A01K1/00; A01K1/02; A01K1/035; A61; A61G; A61G3/00; A61G3/02; A61G3/06; A61G3/061; B66; B66F; B66F7/00; B66F7/24; B66F7/243; Y; Y10; Y10S; Y10S414/00; Y10S414/134

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 159 words
A portable ramp device for placement on a supporting surface, with said portable ramp device comprising an elevated platform member and a ramp member leading thereto and hingedly integrated therewith; said platform member comprising a level table section with at least two legs depending from an underside thereof and collapsible to a reduced dimension therewith; wherein the ramp member comprises at least two separate and connected ramp elements foldable towards the platform member for compact carrying formation of the ramp device, with one of said ramp elements being positioned adjacent to and hingedly integrated with the platform member, and wherein when another of the ramp elements is positioned for contact with the supporting surface, a portion of the positioned ramp element, in contact with the supporting surface, comprises a bevelled end adapted to substantially engage and be stably supported by said supporting surface and wherein the bevelled end is substantially parallel to the table portion of the platform member.
Claim 2
Dependent Claim 159 words
A portable ramp device for placement on a supporting surface, with said portable ramp device comprising an elevated platform member and a ramp member leading thereto and hingedly integrated therewith; said platform member comprising a level table section with at least two legs depending from an underside thereof and collapsible to a reduced dimension therewith; wherein the ramp member comprises at least two separate and connected ramp elements foldable towards the platform member for compact carrying formation of the ramp device, with one of said ramp elements being positioned adjacent to and hingedly integrated with the platform member, and wherein when another of the ramp elements is positioned for contact with the supporting surface, a portion of the positioned ramp element, in contact with the supporting surface, comprises a bevelled end adapted to substantially engage and be stably supported by said supporting surface and wherein the bevelled end is substantially parallel to the table portion of the platform member.
Claim 3
Dependent Claim 220 words
A portable ramp device for placement on a supporting surface, with said portable ramp device comprising an elevated platform member and a ramp member leading thereto and hingedly integrated therewith; said platform member comprising a level table section with at least two collapsible legs depending from an underside thereof and collapsible to a reduced dimension therewith; wherein the ramp member comprises at least two interconnected separate ramp elements which are adapted to extend between the table section and the supporting surface, on which the device is placed, to provide a ramp surface, wherein the ramp member comprises means for adjusting ramp length in accordance with a number of ramp elements being extended and with unused ramp elements being positioned out of a way of said ramp surface and into adjacent ramp elements; wherein one of the ramp elements is hingedly connected to the platform member and wherein each of the ramp elements further comprises a bevelled end adapted to substantially engage and be stably supported by a level ground surface, to permit selective length placement; wherein an angle of bevel is generally such that the bevelled end is substantially parallel to the table portion of the platform member; and wherein a vertical height of the legs is adjustable to be substantially equal to a vertical height of the ramp elements.
Claim 4
Dependent Claim 220 words
A portable ramp device for placement on a supporting surface, with said portable ramp device comprising an elevated platform member and a ramp member leading thereto and hingedly integrated therewith; said platform member comprising a level table section with at least two collapsible legs depending from an underside thereof and collapsible to a reduced dimension therewith; wherein the ramp member comprises at least two interconnected separate ramp elements which are adapted to extend between the table section and the supporting surface, on which the device is placed, to provide a ramp surface, wherein the ramp member comprises means for adjusting ramp length in accordance with a number of ramp elements being extended and with unused ramp elements being positioned out of a way of said ramp surface and into adjacent ramp elements; wherein one of the ramp elements is hingedly connected to the platform member and wherein each of the ramp elements further comprises a bevelled end adapted to substantially engage and be stably supported by a level ground surface, to permit selective length placement; wherein an angle of bevel is generally such that the bevelled end is substantially parallel to the table portion of the platform member; and wherein a vertical height of the legs is adjustable to be substantially equal to a vertical height of the ramp elements.
Claim 5
Dependent Claim 45 words
The portable ramp device of claim 2, wherein each of the ramp elements is hingedly attached to an adjacent ramp element and wherein adjacent ramp elements are adapted to permit one of the adjacent elements to be nested within the other of said adjacent elements.
Claim 6
Dependent Claim 45 words
The portable ramp device of claim 2, wherein each of the ramp elements is telescopically attached to an adjacent ramp element and wherein adjacent ramp elements are adapted to permit one of the adjacent elements to be telescoped within the other of said adjacent elements.
Claim 7
Dependent Claim 98 words
The portable ramp device of claim 2, wherein the ramp elements are collapsible into the ramp element which is hingedly attached to the platform member; wherein the folding legs are collapsible within the platform member; and wherein the ramp element, hingedly attached to the platform member, is foldable relative to the platform member to form a compact attache configuration for easy transport, with said folding legs and ramp elements collapsed within the ramp element, hingedly attached to the platform member, are contained between the platform member and the ramp element hingedly attached thereto, in said attache like configuration.
Claim 8
Dependent Claim 52 words
The portable ramp device of claim 5, wherein position stabilizing means is provided between the ramp element hingedly attached to the platform member and the platform member adjacent the hinged attachment, with said position stabilizing means adjusting for different angled juxtapositions between the platform member and the ramp element hingedly adjacent thereto.
Claim 9
Dependent Claim 43 words
The portable ramp device of claim of claim 6 wherein said position stabilizing means comprises a plastic shield affixed to both the platform member and the ramp element adjacent thereto, in a position spanning the hinging between said platform member and ramp element.
Claim 10
Dependent Claim 37 words
The portable ramp device of claim 2, wherein at least one of said legs is collapsible relative to the table section whereby the table section is able to be stably levelly supported by an external platform surface.
Claim 11
Dependent Claim 35 words
The portable ramp device of claim 2, wherein at least one of said table section and said terminal ramp element, hingedly attached to the platform member, comprises a carrying handle on a lateral edge thereof.

References Cited (Backward Citations)

US2461678A Cited
US3873064A Cited
US3994474A Cited
US3915430A Cited
US4912796A Cited
US5716040A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-02-15 2002-08-17 2003-02-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-02-15 2006-08-17 2007-02-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-02-15 2010-08-17 2011-02-16 $7700.00 Window Closed / Lapsed

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