US5062174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable ramp
Assignee: Individual
•
Filing: 1990-08-30
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Granted: 1991-11-05
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Expires: 2010-08-30
Abstract
Abstract A ramp for use in loading off road vehicles on pick up trucks. The ramp includes a number of ramp panels joined at lateral edges by hinges for foldably connecting the panels and longitudinal hinge means for foldably connecting support panels at or adjacent to both side edges of the ramp panels so that the support panels fold with ramp panels. In use the ramp panels are coplanar and the support panels are normal to the ramp panels to support a load on the top surface of the ramp panel.
Inventors
- 👤 Stanley A. DaSalvo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:55
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/43; B60P1/435
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
260 words
A portable lightweight folding ramp consisting essentially of in combination: (i) a plurality of ramp panels, each having a top surface, a bottom surface, lateral side edges, and longitudinal side edges; (ii) a plurality of support panels, each of which has longitudinal side edges and lateral side edges; (iii) first hinge means, foldably connecting together the lateral edges of adjoining ramp panels at adjoining lateral edges, the first hinge means being adapted and constructed such that: (a) when the ramp is in the open position, the ramp panels are coplanar; and (b) when the ramp is in the stored position, pairs of top surfaces and bottom surfaces are alternately folded against each other, so that the bottom surface of one panel is parallel to the top surface of the next adjacent panel; (iv) second hinge means adjacent the ramp panel longitudinal edges foldably connecting longitudinal side edges of at least two support panels to each ramp panel, the second hinge means being adapted and constructed such that: (a) when the ramp is in the open position, the support panels are co-planar and substantially normal to the ramp panels; and (b) when the ramp is in the stored position, the support panels are co-planar with the ramp panels, and (v) third hinge means foldably connecting pairs of lateral edges of the support panels adjacent the ramp panel lateral edges, the third hinge means being adapted and constructed so that when the support panels are folded to be co-planar with the ramp panels, the ramp can be folded into its stored position.
Claim 2
Dependent Claim
260 words
A portable lightweight folding ramp consisting essentially of in combination: (i) a plurality of ramp panels, each having a top surface, a bottom surface, lateral side edges, and longitudinal side edges; (ii) a plurality of support panels, each of which has longitudinal side edges and lateral side edges; (iii) first hinge means, foldably connecting together the lateral edges of adjoining ramp panels at adjoining lateral edges, the first hinge means being adapted and constructed such that: (a) when the ramp is in the open position, the ramp panels are coplanar; and (b) when the ramp is in the stored position, pairs of top surfaces and bottom surfaces are alternately folded against each other, so that the bottom surface of one panel is parallel to the top surface of the next adjacent panel; (iv) second hinge means adjacent the ramp panel longitudinal edges foldably connecting longitudinal side edges of at least two support panels to each ramp panel, the second hinge means being adapted and constructed such that: (a) when the ramp is in the open position, the support panels are co-planar and substantially normal to the ramp panels; and (b) when the ramp is in the stored position, the support panels are co-planar with the ramp panels, and (v) third hinge means foldably connecting pairs of lateral edges of the support panels adjacent the ramp panel lateral edges, the third hinge means being adapted and constructed so that when the support panels are folded to be co-planar with the ramp panels, the ramp can be folded into its stored position.
Claim 3
Dependent Claim
47 words
A ramp as claimed in claim 1 wherein one hinge part of said lateral hinge is provided with a slot whereby relative longitudinal movement of the other hinge part into said slot causes said hinge to lock said support panel in position normal to said ramp panel.
Claim 4
Dependent Claim
29 words
A ramp as claimed in claim 1 wherein clips having U-shaped cross section engage edges of adjoining ramp panels to lock the panels in a coextensive position in use.
References Cited (Backward Citations)
US3642156A
Cited
US4528711A
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US4571144A
Cited
US4635311A
Cited
US4825492A
Cited
US4864673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-04 | 1995-05-06 | 1995-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-04 | 1999-05-06 | 1999-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-04 | 2003-05-06 | 2003-11-05 | $7700.00 | Window Closed / Lapsed |