# US 10,309,824 B2 · Weight sensing vehicle hitch

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- Number: US 10,309,824 B2
- Document ID: US10309824B2
- Status: Granted
- Kind: B2
- Application number: 15/016,867
- Filed: 2016-02-05
- Published: 2016-08-11
- Granted: 2019-06-04
- Earliest claimed: 2015-02-05
- Applicants: R. Douglas Fredrickson
- Inventors: R. Douglas Fredrickson
- Web page: https://patentgrep.com/patent/US10309824B2

## CPC

- G01G 19/08: for incorporation in vehicles
- B60D 1/06: Ball-and-socket hitches
- B60D 1/248: {for measuring, indicating or displaying the weight}
- B60D 1/62: involving supply lines, electric circuits or the like
- B60L 1/006: {to power outlets}
- G01G: WEIGHING (sorting by weighing B07C5/16)
- B60D: VEHICLE CONNECTIONS
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES

## Abstract

A weight sensing vehicle hitch allows an operator to easily determine the load placed on the vehicle. The weight sensing vehicle hitch has a hitch receiver and a load force assembly. The load force assembly includes two layers of protective material and a load sensor disposed between the layers of protective material. The load force assembly is located in a hitch receiver tube such that the weight on the tongue of the trailer can be measured with the weight sensing vehicle hitch. It may also be used with a “turnover ball” hitch mechanism in which a load force assembly is inserted into the opening before the turnover ball.

## Claims

### Claim 1

A weight sensing vehicle hitch comprising:
a hitch receiver tube;
a load sensor disposed on a lower interior surface of the hitch receiver tube; and
a computational assembly for determining the weight of a ball mount connected to the load sensor;
the load sensor being positioned and sandwiched between the lower interior surface of the hitch receiver tube and a lower surface of the ball mount, and
a mechanism to display the determined weight.

### Claim 2 (depends on 1)

The weight sensing vehicle hitch of claim 1 wherein said load sensor includes a protective layer over at least a top or bottom surface of said load sensor.

### Claim 3 (depends on 1)

The weight sensing vehicle hitch of claim 1 further including a mechanism to connect to a source of electrical power.

### Claim 4 (depends on 3)

The weight sensing vehicle hitch of claim 3 wherein said mechanism to connect to a source of electrical power is a wiring adapter to fit a standard trailer connector on a vehicle.

### Claim 5

A weight sensing vehicle hitch assembly comprising:
a hitch receiver tube;
a ball mount adapted to connect to said hitch receiver tube; and
a load sensor disposed and sandwiched between a lower surface of said hitch receiver tube and a bottom surface of said ball mount; and
a computational assembly for determining the weight of the ball mount connected to the load sensor; and
a mechanism to display the determined weight.

### Claim 6

A weight sensing vehicle hitch comprising:
a hitch receiver tube having an interior surface for receiving a ball mount;
a load force assembly, at least a portion of which is disposed in the hitch receiver tube, on a lower interior surface of the hitch receiver tube and under the ball mount, the load force assembly comprising a first layer of protective material, a second layer of protective material, and a load sensor disposed and sandwiched between the first and second layers of protective material, wherein, in combination, the first layer of protective material, second layer of protective material, and load sensor are less than 0.05″ in thickness.

### Claim 7 (depends on 6)

The weight sensing vehicle hitch of claim 6 further including calibration of a measured force.