# US 7,607,873 B2 · Concrete panel trailer assembly with strut-mounted wheels

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- Number: US 7,607,873 B2
- Document ID: US7607873B2
- Status: Granted
- Kind: B2
- Application number: 11/385,157
- Filed: 2006-03-21
- Published: 2007-09-27
- Granted: 2009-10-27
- Earliest claimed: 2006-03-21
- Assignees: 21st Century Structures, LLC
- Inventors: Richard F. Wehrli; Joseph Gallione
- Web page: https://patentgrep.com/patent/US7607873B2

## CPC

- B60P 3/002: {for carrying glass plates}
- B60P 3/40: for carrying long loads, e.g. with separate wheeled load supporting elements ({E04G21/14 takes precedence}; signal devices to be attached to overhanging load B60Q7/02)
- B60P 7/10: the load being plates, cases, or boxes
- 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 trailer assembly for transporting one or more vertically-oriented panels includes a frame having front and rear sections, a first set of lower crossbeams extending laterally across the front section of the frame, and a second set of lower crossbeams extending laterally across the rear section of the frame. The crossbeams provide vertical support for the panel(s). A hitch extending from the front section of the frame is attachable to a towing vehicle. A set of front vertical members extend upwardly from either the hitch or the frame. A set of front crossbeams extend laterally between the front vertical members and a set of rear crossbeams extend laterally between the rear vertical members. The front and rear crossbeams impede longitudinal movement of the panel(s). A set of wheels axially mounted on struts extend laterally from oppositely facing sides of the rear section of the frame. In one embodiment, one of the front and rear sections is capable of telescoping within the other section to vary the frame length.

## Claims

### Claim 1

A trailer assembly for transporting at least one vertically-oriented panel, the trailer assembly comprising:
(a) a frame including front and rear sections;
(b) a first plurality of lower crossbeams extending laterally across the front section of the frame, the first plurality of lower crossbeams providing vertical support for the at least one panel;
(c) a second plurality of lower crossbeams extending laterally across the rear section of the frame, the second plurality of lower crossbeams providing vertical support for the at least one panel;
(d) a plurality of wheels axially mounted on struts extending laterally from oppositely facing sides of the rear section of the frame;
(e) a plurality of front vertical members extending upwardly from a hitch; and
(f) a plurality of front crossbeams extending laterally between the front vertical members, the plurality of front crossbeams impeding longitudinal movement of the at least one panel.

### Claim 2 (depends on 1)

The trailer assembly of claim 1, further comprising:
(g) a plurality of rear vertical members extending upwardly from at least one rear guide member; and
(h) a plurality of rear crossbeams extending laterally between the rear vertical members, the plurality of rear crossbeams impeding longitudinal movement of the at least one panel.

### Claim 3 (depends on 2)

The trailer assembly of claim 2, further comprising:
(i) a plurality of rear base members each comprising a rail, wherein the at least one rear guide member is capable of being moved in a longitudinal direction along at least one of the rails.

### Claim 4 (depends on 3)

The trailer assembly of claim 3, wherein at least one of the rails has at least one hole formed therein and the at least one rear guide member has at least one hole formed therein.

### Claim 5 (depends on 4)

The trailer assembly of claim 4, further comprising at least one pin capable of being placed through at least one hole formed in one of the rails and at least one hole formed in the at least one rear guide member to fix the at least one rear guide member longitudinal position.

### Claim 6 (depends on 1)

The trailer assembly of claim 1, further comprising a plurality of front angled supports connecting the front vertical members with the hitch.

### Claim 7 (depends on 3)

The trailer assembly of claim 3, further comprising a plurality of rear angled supports connecting the rear vertical members with the rear base members.