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US4906041A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-purpose end-gate for overland vehicles

Assignee: Individual
•
Filing: 1989-02-13
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Granted: 1990-03-06
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Expires: 2009-02-13
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Abstract

Abstract For use in combination along the transversely extending horizontal rear-end of a pickup truck or other overland vehicle, there is described an upright end-gate that is also alternatively employable as a ramp or as a trailer whenever panels of the end-gate are freed from their upright gating condition. In the upright gating condition, the multi-purpose end-gate includes: (A) an upright U-shaped frame member that is attachable to the vehicle rear-end; (B) an upright laminarly extending first-panel including a transversely extending trail-end removably pivotably attached along a first-pivot to the frame member and also a transversely extending lofty lead-end, and pivotably attached strut located within the laminar confines of the first-panel; (C) an upright laminarly extending second-panel including trailward-end extending along and pivotably connected to the first-panel lead end, and including below the trailward-end a leadward-end provided with drawbar-attachment capability; (D) capability for maintaining the two panels substantially coplanar whenever the end-gate is freed from gating condition and thereafter employed as a ramp or as a trailer; (E) wheels or other ground engagement carried at gating condition but thereafter employable at the strut when the end-gate is in the trailer mode.

Inventors

  • 👤 Michael R. McKenzie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:05
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/30; B60; B60P; B60P1/00; B60P1/43; B60P1/435

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 275 words
For use in combination along the transversely extending horizontal rear-end of an overland vehicle, an upright end-gate that is also alternatively employable as a ramp or as a trailer whenever panels portions of the end-gate are freed from their up-right gating condition, said end-gate in the upright gating condition comprising: (A) an upright U-shaped frame member at its external side extending along and being attachable along transversely extending frame-pivot means to said vehicle rear-end, said U-shaped frame member at its internal side having a transversely extending finite internal-width; (B) an upright laminarly extending first-panel having a said finite internal-width and including a transversely extending trail-end that is removably pivotably attached along a first-pivot means to said frame member, said first-panel also having a transversely extending lead-end that loftily overlies said trail-end, and pivotably attached strut means located within the laminar confines of said first-panel; (C) an upright laminarly extending second-panel locatable rearwardly of and substantially parallel to said first-panel, said second-panel having a transverse extent approximating that for said first-panel and including a trailward-end that is pivotably attached along a second-pivot means to the first panel lead-end, said second-panel also having a transversely extending leadward-end provided with drawbar-attachment means; (D) inter-panels rigidifying means that is wholly inactive when the first-panel and second-panel are employed in up-right parallelism but that actively maintains the two panels substantially co-planar whenever the end-gate is pivoted at said second-pivot means and for alternative employments as ramp or trailer; and (E) terrain-traversing means removably attachable to said strut means whenever the end-gate panels are to be freed at said first-pivot means from said frame member and employed in a trailer mode.
Claim 2
Dependent Claim 275 words
For use in combination along the transversely extending horizontal rear-end of an overland vehicle, an upright end-gate that is also alternatively employable as a ramp or as a trailer whenever panels portions of the end-gate are freed from their up-right gating condition, said end-gate in the upright gating condition comprising: (A) an upright U-shaped frame member at its external side extending along and being attachable along transversely extending frame-pivot means to said vehicle rear-end, said U-shaped frame member at its internal side having a transversely extending finite internal-width; (B) an upright laminarly extending first-panel having a said finite internal-width and including a transversely extending trail-end that is removably pivotably attached along a first-pivot means to said frame member, said first-panel also having a transversely extending lead-end that loftily overlies said trail-end, and pivotably attached strut means located within the laminar confines of said first-panel; (C) an upright laminarly extending second-panel locatable rearwardly of and substantially parallel to said first-panel, said second-panel having a transverse extent approximating that for said first-panel and including a trailward-end that is pivotably attached along a second-pivot means to the first panel lead-end, said second-panel also having a transversely extending leadward-end provided with drawbar-attachment means; (D) inter-panels rigidifying means that is wholly inactive when the first-panel and second-panel are employed in up-right parallelism but that actively maintains the two panels substantially co-planar whenever the end-gate is pivoted at said second-pivot means and for alternative employments as ramp or trailer; and (E) terrain-traversing means removably attachable to said strut means whenever the end-gate panels are to be freed at said first-pivot means from said frame member and employed in a trailer mode.
Claim 3
Dependent Claim 19 words
The end-gate of claim 1 wherein the terrain-traversing means takes the form of at least two separate terrain-traversible wheels.
Claim 4
Dependent Claim 32 words
The end-gate of claim 2 wherein the wheels are separately removably stowably attachable to at least one of said panels and thereat have a transversely extending wheels' spacing exceeding said finite internal-width.
Claim 5
Dependent Claim 260 words
In combination with the transversely extending rear-end of an overland vehicle, an upright dual-panels end-gate that is also alternatively employable as a ramp or as a trailer whenever panel portions of the end-gate are freed from their upright gating condition, said end-gate in the upright gating condition comprising: (A) an upright U-shaped frame member at its external side extending along and being attached to said vehicle rear-end, said U-shaped frame member at its internal side having a transversely extending finite internal-width; (B) an upright laminarly extending first-panel having a transversely extending trail-end that is removably pivotably attached along a first-pivot means to said frame member internal side, said first-panel also having a transversely extending lead-end that loftily overlies said trail-end; (C) an upright laminarly extending second-panel located rearwardly of and substantially parallel to said first-panel, said second-panel having a transversely extending trailward-end that is pivotably attached along a second-pivot means to the first panel lead-end, said second-panel below the trailward-end thereof having a transversely extending leadward-end provided with drawbar-attachment means; (D) pivotably attached strut means located within the laminar confines of said dual-panels end-gate, each said strut means being adapted to removably engage a terrain-traversing means; (E) said terrain-traversing means being removably stowably attached to said dual-panels end-gate at locations remote from said strut means; and (F) inter-panels rigidifying means that is wholly inactive when the first-panel and second-panel are employed in up-right paralellism but that actively maintains the two panels substantially co-planar whenever the end-gate is pivoted at said second-pivot means and for alternative employments as ramp or trailer.
Claim 6
Dependent Claim 260 words
In combination with the transversely extending rear-end of an overland vehicle, an upright dual-panels end-gate that is also alternatively employable as a ramp or as a trailer whenever panel portions of the end-gate are freed from their upright gating condition, said end-gate in the upright gating condition comprising: (A) an upright U-shaped frame member at its external side extending along and being attached to said vehicle rear-end, said U-shaped frame member at its internal side having a transversely extending finite internal-width; (B) an upright laminarly extending first-panel having a transversely extending trail-end that is removably pivotably attached along a first-pivot means to said frame member internal side, said first-panel also having a transversely extending lead-end that loftily overlies said trail-end; (C) an upright laminarly extending second-panel located rearwardly of and substantially parallel to said first-panel, said second-panel having a transversely extending trailward-end that is pivotably attached along a second-pivot means to the first panel lead-end, said second-panel below the trailward-end thereof having a transversely extending leadward-end provided with drawbar-attachment means; (D) pivotably attached strut means located within the laminar confines of said dual-panels end-gate, each said strut means being adapted to removably engage a terrain-traversing means; (E) said terrain-traversing means being removably stowably attached to said dual-panels end-gate at locations remote from said strut means; and (F) inter-panels rigidifying means that is wholly inactive when the first-panel and second-panel are employed in up-right paralellism but that actively maintains the two panels substantially co-planar whenever the end-gate is pivoted at said second-pivot means and for alternative employments as ramp or trailer.
Claim 7
Dependent Claim 19 words
The end-gate of claim 4 wherein the terrain-traversing means takes the form of at least two separate terrain-traversible wheels.
Claim 8
Dependent Claim 40 words
The end-gate of claim 1 wherein the frame-pivot means is located at a lower portion of the U-shaped frame member and wherein said U-shaped frame member at an upper portion is provided with transversely extending frame-latchpins extendable into vehicular openings.

References Cited (Backward Citations)

US3642156A Cited
US3713553A Cited
US3834565A Cited
US4735454A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-03-05 1993-09-04 1994-03-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-03-05 1997-09-04 1998-03-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-03-05 2001-09-04 2002-03-06 $7700.00 Window Closed / Lapsed

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