# US 8,783,701 B1 · Lowerable suspension for trailers and other vehicles

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,783,701 B1
- Document ID: US8783701B1
- Status: Granted
- Kind: B1
- Application number: 13/910,488
- Filed: 2013-06-05
- Granted: 2014-07-22
- Earliest claimed: 2013-06-05
- Assignees: Timothy D. Blevins
- Applicants: Timothy D. Blevins
- Inventors: Timothy D. Blevins
- Web page: https://patentgrep.com/patent/US8783701B1

## CPC

- B60G 17/005: Suspension locking arrangements {(for retractable wheels B62D61/12)}
- B60P 1/027: {with relative displacement of the wheel axles}
- B60G 2204/47: Means for retracting the suspension
- B60G 2300/04: Trailers
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})
- 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 lowerable suspension for trailers and other vehicles allows a trailer to be lowered to a deployed position in order to allow easier access to the trailer. A suspension axle is attached to the vehicle frame. A lower swing arm and an upper stop arm are rotatably connected to the suspension axle. A rubber damper pad is connected between the lower swing arm and the upper stop arm to act as a shock absorber during transit. A wheel is rotatably connected to the lower swing arm opposite the suspension axle. The wheel is affixed into a raised or lowered position by inserting a suspension transition pin through the upper stop arm into either a transit pin hole or a deployed pin hole of a suspension transition plate that is affixed to the vehicle frame adjacent. A plurality of jacks assists with raising and lowering the vehicle frame.

## Claims

### Claim 1

A lowerable suspension for trailers and other vehicles comprises:
a vehicle frame;
a plurality of powered jacks;
a suspension axle;
a lower swing arm;
an upper stop arm;
a suspension transition plate;
a rubber damper pad;
a pin;
a wheel axle;
a wheel;
the vehicle frame comprises an axle attachment location;
the lower swing arm comprises a first suspension axle aperture and a wheel axle aperture;
the upper stop arm comprises an axle connection portion, a damper pad portion, a second suspension axle aperture and a stop arm pin hole;
the suspension transition plate comprises a third suspension axle aperture, a transit position pin hole, and a deployed position pin hole;
the plurality of powered jacks being operatively engaged with the vehicle frame,
wherein the vehicle frame is vertically lifted or lowered by the plurality of powered jacks;
the lower swing arm and the upper stop arm being rotatably connected to the suspension axle; and
the wheel being rotatably connected to the lower swing arm opposite the suspension axle.

### Claim 2 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the suspension axle being oriented horizontally; and
the suspension axle being attached to the vehicle frame at the axle attachment location, wherein the suspension axle is oriented laterally with respect to the vehicle frame.

### Claim 3 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the suspension transition plate being attached to the vehicle frame adjacent to the axle attachment location, wherein the third axle aperture is positioned adjacent to the axle attachment location;
the third axle aperture, the transit position pin hole and the deployed position pin hole being oriented parallel to each other; and
the transit position pin hole and the deployed position pin hole being positioned equidistant from the third suspension axle aperture, wherein the distance between the third suspension axle aperture and the transit position pin hole, the distance between the third suspension axle aperture and the deployed position pin hole, and the distance between the second suspension axle aperture and the stop arm pin hole are equal.

### Claim 4 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the upper stop arm being positioned adjacent to the suspension transition plate opposite the vehicle frame;
the damper pad portion being positioned adjacent to the rubber damper pad opposite the lower swing arm, wherein the damper pad portion is parallel to the lower swing arm;
the stop arm pin hole being positioned between the axle connection portion and the damper pad portion;
the second suspension axle aperture being positioned on the axle connection portion;
the stop arm pin hole and the second suspension axle aperture being oriented parallel to each other;
the axle connection portion being rotatably connected to the suspension axle at the second suspension axle aperture;
the damper pad portion being attached to the axle connection portion opposite the second suspension axle aperture,
wherein the axle connection portion is perpendicular to the damper pad portion; and
wherein the upper stop arm is substantially L-shaped.

### Claim 5 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the first suspension axle aperture and the wheel axle aperture being oriented parallel to each other; and
the first suspension axle aperture and the wheel axle aperture being positioned opposite each other along the lower swing arm.

### Claim 6 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the first suspension axle aperture, the second suspension axle aperture, and the third suspension axle aperture being concentrically positioned with each other;
the first suspension axle aperture being positioned adjacent to the second suspension axle aperture;
the third suspension axle aperture being positioned adjacent to the second suspension axle aperture opposite the first suspension axle aperture; and
the suspension axle concentrically traversing through the first suspension axle aperture, the second suspension axle aperture, and the third suspension axle aperture.

### Claim 7 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises: (wheel/wheel axle)
the wheel axle concentrically traversing through the wheel axle aperture;
the wheel being concentrically positioned with the wheel axle; and
the wheel being rotatably connected to the wheel axle.

### Claim 8 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the rubber damper pad being attached between the lower swing arm and the upper stop arm, wherein the rubber damper pad acts as a shock absorber between the lower swing arm and the upper stop arm during transit.

### Claim 9 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the pin being removably inserted into the stop arm pin hole and the transit position pin hole in order to affix the wheel in a lowered wheel position.

### Claim 10 (depends on 1)

The lowerable suspension for trailers and other vehicles as claimed in claim 1 comprises:
the pin being removably inserted into the stop arm pin hole and the deployed position pin hole in order to affix the wheel in a raised wheel position.