Patent US5287580A successfully refreshed from Google Patents.
US5287580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding portable ramp
Assignee: Individual
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Filing: 1991-12-20
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Granted: 1994-02-22
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Expires: 2011-12-20
Abstract
Abstract A lightweight folding portable ramp for use with an electric scooter or a wheelchair which may be positioned by the user without dismounting from the means of conveyance. The ramp is comprised of two ramp members and may include a rectangular connecting means, all of which are hinged together. Handles for lifting are provided on the ramp members.
Inventors
- 👤 Steven H. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:37
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/30
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
180 words
A lightweight portable ramp for use in allowing a wheeled vehicle to traverse between a first upper level and a second lower level, said ramp comprising: two rigid planar ramp members having a hinging means therebetween; wherein each rigid planar ramp member has a bent first end adapted for operative engagement with said first upper level and a second end adapted for operative engagement with said second lower level; said ramp members being adapted to supportingly span between said first upper level and said second lower level and being of a small size and low weight so as to be maneuverable in to and out of place by a person using one hand; and wherein said hinging means connects said two rigid planar ramp members in side-by-side adjacent relation to each other between said bent first end and said second end, so that said portable ramp may be changed between a transportable position whereat said two ramp members are folded against one another and an in-use position whereat said ramp members are pivoted outwardly so as to be generally co-planar.
Claim 2
Dependent Claim
180 words
A lightweight portable ramp for use in allowing a wheeled vehicle to traverse between a first upper level and a second lower level, said ramp comprising: two rigid planar ramp members having a hinging means therebetween; wherein each rigid planar ramp member has a bent first end adapted for operative engagement with said first upper level and a second end adapted for operative engagement with said second lower level; said ramp members being adapted to supportingly span between said first upper level and said second lower level and being of a small size and low weight so as to be maneuverable in to and out of place by a person using one hand; and wherein said hinging means connects said two rigid planar ramp members in side-by-side adjacent relation to each other between said bent first end and said second end, so that said portable ramp may be changed between a transportable position whereat said two ramp members are folded against one another and an in-use position whereat said ramp members are pivoted outwardly so as to be generally co-planar.
Claim 3
Dependent Claim
19 words
A ramp as in claim 1 wherein each ramp member has a top side with a frictional surface thereon.
Claim 4
Dependent Claim
20 words
A ramp as in claim 2 wherein each ramp member has a bottom side with a rubber gripping surface thereon.
Claim 5
Dependent Claim
16 words
A ramp as in claim 3 further comprising separate lifting means attached to each ramp member.
Claim 6
Dependent Claim
13 words
A ramp as in claim 4 wherein the lifting means comprises rope means.
Claim 7
Dependent Claim
13 words
A ramp as in claim 5 wherein the ropes are provided with handles.
Claim 8
Dependent Claim
12 words
A ramp as in claim 6 wherein a retention handle is provided.
Claim 9
Dependent Claim
35 words
A ramp as in claim 1, wherein each of said ramp members has a length of between about 10 inches and 24 inches and a width of between about 8 inches and about 16 inches.
Claim 10
Dependent Claim
234 words
A lightweight portable ramp for use in allowing a wheeled vehicle to traverse between a first upper level and a second lower level, said ramp comprising: two rigid planar ramp members having a hinging means and a connecting means therebetween; wherein each rigid planar ramp member has a bent first end adapted for operative engagement with said first upper level and a second end adapted for operative engagement with said second lower; said ramp members being adapted to supportingly span between said first upper level and said second lower level and being of a small size and low weight so as to be maneuverable in to and out of place by a person using one hand; wherein said connecting means has two opposite sides, each of said opposite sides adapted for hinged attachment to one of said two rigid planar ramp members, said connecting means acting as a third member; and wherein said hinging means connected said two rigid planar ramp members in side-by-side adjacent relation to said connecting means, one at each of said two opposite sides, between said bent first end and said second end, so that said portable ramp may be changed between a transportable position whereat said two ramp members and said connecting means are folded against one another and an in-use position whereat said ramp members and said connecting means are pivoted outwardly so as to be generally co-planar.
Claim 11
Dependent Claim
234 words
A lightweight portable ramp for use in allowing a wheeled vehicle to traverse between a first upper level and a second lower level, said ramp comprising: two rigid planar ramp members having a hinging means and a connecting means therebetween; wherein each rigid planar ramp member has a bent first end adapted for operative engagement with said first upper level and a second end adapted for operative engagement with said second lower; said ramp members being adapted to supportingly span between said first upper level and said second lower level and being of a small size and low weight so as to be maneuverable in to and out of place by a person using one hand; wherein said connecting means has two opposite sides, each of said opposite sides adapted for hinged attachment to one of said two rigid planar ramp members, said connecting means acting as a third member; and wherein said hinging means connected said two rigid planar ramp members in side-by-side adjacent relation to said connecting means, one at each of said two opposite sides, between said bent first end and said second end, so that said portable ramp may be changed between a transportable position whereat said two ramp members and said connecting means are folded against one another and an in-use position whereat said ramp members and said connecting means are pivoted outwardly so as to be generally co-planar.
Claim 12
Dependent Claim
35 words
A ramp as in claim 9, wherein each of said ramp members has a length of between about 10 inches and 24 inches and a width of between about 8 inches and about 16 inches.
Claim 13
Dependent Claim
28 words
A ramp as in claim 9 wherein each ramp member has a portion on one end which is bent in order to better fit on an elevated surface.
Claim 14
Dependent Claim
19 words
A ramp as in claim 11 wherein each ramp member has a top side with a frictional surface thereon.
Claim 15
Dependent Claim
20 words
A ramp as in claim 12 wherein each ramp member has a bottom side with a rubber gripping surface thereon.
Claim 16
Dependent Claim
16 words
A ramp as in claim 13 further comprising separate lifting means attached to each ramp member.
Claim 17
Dependent Claim
13 words
A ramp as in claim 14 wherein the lifting means comprises rope means.
Claim 18
Dependent Claim
13 words
A ramp as in claim 15 wherein the ropes are provided with handles.
Claim 19
Dependent Claim
12 words
A ramp as in claim 16 wherein a retention handle is provided.
Claim 20
Dependent Claim
30 words
A ramp as in claim 13, wherein the connecting means is constructed from a lighter material than the ramp members which are adapted to support a load traversing the ramp.
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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) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |