# US 10,479,428 B2 · Patio for ramp door

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- Number: US 10,479,428 B2
- Document ID: US10479428B2
- Status: Granted
- Kind: B2
- Application number: 15/977,423
- Filed: 2018-05-11
- Published: 2018-11-22
- Granted: 2019-11-19
- Earliest claimed: 2017-05-16
- Applicants: MORryde International, Inc.
- Inventors: Michael Caster; Chris Taylor; Ben Yoder
- Web page: https://patentgrep.com/patent/US10479428B2

## CPC

- B62D 63/061: {Foldable, extensible or yielding trailers (foldable caravans B60P3/34; adjustable chassis frames B62D21/14)}
- B60P 1/43: using a loading ramp mounted on the vehicle (loading ramps per se B65G69/28)
- B60P 3/34: the living accommodation being expansible, collapsible or capable of rearrangement ({B60P3/38} takes precedence; tents supported at least partially by vehicles E04H15/06)
- B60P 3/36: Auxiliary arrangements; Arrangements of living accommodation (toilet or washing arrangements B60R15/00); Details
- B60P 1/433: {the loading floor or a part thereof being movable to form the ramp}
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00)

## Abstract

A patio that is pivotable over a ramp door via hinges fixed with respect to the ramp door. The patio has a wall that is pivots to align a catch plate to a kingpin. The kingpin is for being secured to the ramp door. The kingpin has a major diameter, an undercut, and a shoulder near a distal end. The shoulder is spaced from the ramp door when the kingpin is affixed to the ramp door. The catch plate is moveable to the kingpin so that the slot receives the undercut of the kingpin and the catch plate is retained between the shoulder of the kingpin and ramp door when the undercut is in the first slot.

## Claims

### Claim 1

A patio for a ramp door being movable from a closed position to an open extended position fixable substantially parallel to a ground surface, said patio comprising:
a first wall affixed to a hinge for being fixed with respect to said ramp door, said hinge supporting said first wall for pivoting above said ramp door in its extended position, said first wall having a lower edge for being adjacent to and overlying said ramp door in its extended position, a catch plate located adjacent to said lower edge and said catch plate having an opening extending into a first slot;
a first kingpin for being secured to said ramp door, said first kingpin having a major diameter, an undercut, and having a shoulder near a distal end, said shoulder being spaced from said ramp door when said kingpin is affixed to said ramp door, said catch plate being movable to said kingpin so that said slot receives said undercut of said kingpin and said catch plate being retained between said shoulder of said kingpin and said ramp door when said undercut is in said first slot.

### Claim 2 (depends on 1)

The patio of claim 1 further comprising:
a second wall hingeably attached to said first wall, said second wall pivotable above said ramp door in its extended position, said second wall having a second lower edge for being adjacent to and overlying said ramp door in its extended position, a second catch plate located adjacent to said second lower edge and said second catch plate having a second opening extending into a second slot;
a second kingpin for being secured to said ramp door, said second kingpin having a major diameter, an undercut, and having a shoulder near a distal end, said shoulder being spaced from said ramp door when said second kingpin is affixed to said ramp door, said second catch plate being movable to said second kingpin so that said second slot receives said undercut of said second kingpin and said second catch plate being retained between said shoulder of said second kingpin and said ramp door when said undercut of said second kingpin is in said second slot; a third wall hingeably attached to said second wall, said third wall pivotable above said ramp door in its extended position.

### Claim 3 (depends on 1)

The patio of claim 1 further comprising:
a second wall hingeably attached to said first wall, said second wall pivotable above said ramp door in its extended position, said second wall having a second lower edge for being adjacent to and overlying said ramp door in its extended position said second wall being pivotable between a folded position with respect to said first wall and an extended position with respect to said first wall, said second wall closing said opening of said catch plate when said second wall is in said extended position with respect to said first wall.

### Claim 4 (depends on 3)

The patio of claim 3, wherein one of said walls includes a locking device including a retainer body pivotable with respect said one wall between an unlocked position and a locked position, said retainer body including a catch surface for catching a bar cleat affixed to said ramp door.

### Claim 5 (depends on 4)

The patio of claim 4, wherein said locking device includes a tab opposite said retainer body.

### Claim 6 (depends on 4)

The patio of claim 4, wherein said locking device includes a spring biasing said locking device into said locked position.

### Claim 7 (depends on 6)

The patio of claim 6, wherein said locking device includes a ramped surface opposite said catch surface, said ramped surface for riding over said bar cleat.

### Claim 8 (depends on 7)

The patio of claim 7 wherein said locking device includes a tab opposite said retainer body.

### Claim 9 (depends on 1)

The patio of claim 1, wherein said hinge provides axial and pivotal movement of said first wall.

### Claim 10 (depends on 9)

The patio of claim 9, wherein said hinge includes a spring for biasing said hinge axially in a direction to lift said first wall.

### Claim 11 (depends on 9)

The patio of claim 9, further comprising a second wall hingeably attached to said first wall, said second wall pivotable above said ramp door in its extended position, said second wall having a second lower edge for being adjacent to and overlying said ramp door in its extended position said second wall being pivotable between a folded position with respect to said first wall and an extended position with respect to said first wall, said second wall closing said opening of said catch plate when said second wall is in said extended position with respect to said first wall.

### Claim 12 (depends on 10)

The patio of claim 10, wherein said patio includes a locking device pivotally fixed with respect to said hinge and restraining axial movement of said first wall with respect to said hinge.

### Claim 13 (depends on 12)

The patio of claim 12, wherein said locking device is a pivotable saddle straddling said first wall that restrains pivotal movement of said wall with respect to said hinge.

### Claim 14

A patio for a ramp door being movable from a closed position to an open extended position fixable substantially parallel to a ground surface, said patio comprising:
a first wall affixed to a hinge for being fixed with respect to said ramp door, said hinge supporting said first wall for pivoting above said ramp door in its extended position, said first wall including a fixed portion and a sliding portion said fixed portion being fixed with respect to said hinge and said sliding portion being telescopingly received within said fixed portion, said sliding portion having a lower edge for being adjacent to and overlying said ramp door in its extended position, a catch plate located adjacent to said lower edge and said catch plate having an opening extending into a slot;
a first kingpin for being secured to said ramp door, said kingpin having a major diameter, an undercut, and having a shoulder near a distal end, said shoulder being spaced from said ramp door when said kingpin is affixed to said ramp door, said catch plate being movable to said kingpin so that said slot receives said undercut of said kingpin and said catch plate being retained between said shoulder of said kingpin and said ramp door when said undercut is in said first slot.

### Claim 15 (depends on 14)

The patio of claim 14 further comprising:
a second wall hingeably attached to said first wall, said second wall pivotable above said ramp door in its extended position, said second wall having a second lower edge for being adjacent to and overlying said ramp door in its extended position said second wall being pivotable between a folded position with respect to said first wall and an extended position with respect to said first wall, said second wall closing said opening of said catch plate when said second wall is in said extended position with respect to said first wall.

### Claim 16 (depends on 15)

The patio of claim 15, wherein said hinge provides axial and pivotal movement of said first wall.

### Claim 17 (depends on 16)

The patio of claim 16, wherein said hinge includes a spring for biasing said hinge axially in a direction to lift said first wall.

### Claim 18 (depends on 14)

The patio of claim 14, wherein said hinge provides axial and pivotal movement of said first wall and said hinge includes a spring for biasing said hinge axially in a direction to lift said first wall, wherein said patio includes a locking device pivotally fixed with respect to said hinge and restraining axial movement of said wall with respect to said hinge.

### Claim 19 (depends on 18)

The patio of claim 18, wherein said locking device is a pivotable saddle straddling said first wall that restrains pivotal movement of said first wall with respect to said hinge.