# US 6,719,360 B1 · Trailer body construction

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- Number: US 6,719,360 B1
- Document ID: US6719360B1
- Status: Granted
- Kind: B1
- Application number: 10/267,089
- Filed: 2002-10-09
- Granted: 2004-04-13
- Earliest claimed: 2002-10-09
- Assignees: Travis Body & Trailer, Inc.
- Inventors: Jason Backs
- Web page: https://patentgrep.com/patent/US6719360B1

## CPC

- B62D 33/023: Sideboard or tailgate structures {(vehicle side panels in general B62D25/02)}
- 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)

## Abstract

A trailer body employs hollow and generally rectangular dual wall tubes stacked, interlocked and welded on both sides continuously to form each side of the trailer body. The extrusion walls are of varying thickness to minimize weight and maximize strength and durability.

## Claims

### Claim 1

A trailer vehicle comprising:
a horizontal platform;
a lower extrusion panel positioned horizontally adjacent to said platform;
a hollow extruded wall panel positioned horizontally adjacent to said lower extrusion panel; and
said hollow extruded wall panel having a corrugated exterior surface with a thickness, and an interior wall surface with a thickness greater than said exterior surface thickness.

### Claim 2 (depends on 1)

The trailer vehicle of claim 1, further comprising a rubrail having a curved member adapted to extend from a top surface of said lower extrusion panel to contact an adjacent hollow extruded panel along an interior surface thereof, wherein a point of contact of said curved member with said interior surface of said hollow panel is between a top and bottom surface of said panel.

### Claim 3 (depends on 1)

The trailer vehicle of claim 1, further comprising a set of vertical projections on a bottom wall of said hollow extruded wall panel.

### Claim 4 (depends on 3)

The trailer vehicle of claim 3, further comprising an upward protrusion on a top wall of said hollow extruded wall panel.

### Claim 5 (depends on 4)

The trailer vehicle of claim 4, wherein a mate of said vertical projections with said upward protrusion provide positional placement of panels.

### Claim 6 (depends on 1)

The trailer vehicle of claim 1, wherein said hollow wall panel has a cross section with a non-uniform thickness extending along the height of the panel.

### Claim 7 (depends on 6)

The trailer vehicle of claim 6, wherein said wall panel thickness is distributed around a perimeter of said panel.

### Claim 8 (depends on 1)

The trailer vehicle of claim 1, wherein said wall is adapted to extend a length of said vehicle, wherein said length is selected from a group consisting of: a full length of said vehicle, and a partial length of said vehicle.

### Claim 9 (depends on 1)

The trailer vehicle of claim 1, further comprising said hollow extruded wall panel having a perimeter with a variable thickness.