# US 5,348,138 A · No-nest bird gate

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- Number: US 5,348,138 A
- Document ID: US5348138A
- Status: Granted
- Kind: A
- Application number: 08/110,697
- Filed: 1993-08-23
- Granted: 1994-09-20
- Earliest claimed: 1993-07-20
- Inventors: Karl F. Seemann
- Web page: https://patentgrep.com/patent/US5348138A

## CPC

- B65G 33/24: Details
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)

## Abstract

A bird gate for a grain auger outlet includes a panel that extends across the auger outlet in a normal, closed position. It is biased to that position by a spring. When grain is delivered from the auger, it falls on the panel, biasing the panel to an open position and allowing the grain to be delivered from the auger. The closed position of the gate prevents birds from entering the auger for nesting.

## Claims

### Claim 1

A bird gate for a grain auger outlet comprising:
panel means configured to extend across the inside of the auger outlet;
mounting means for mounting the panel means in the auger outlet for movement between a closed position extending across the outlet and an open position extending along the outlet; and
biasing means for biasing the panel means toward the closed position.

### Claim 2 (depends on 1)

A gate according to claim 1 wherein the panel means comprise a single panel.

### Claim 3 (depends on 2)

A gate according to claim 2 wherein the mounting means comprise pivot means for mounting the panel to pivot about an axis substantially parallel to the panel and eccentrically positioned with respect to the panel.

### Claim 4 (depends on 3)

A gate according to claim 3 wherein the pivot means comprise a rod and rod engaging lugs on the panel.

### Claim 5 (depends on 1)

A gate according to claim 1, wherein the biasing means comprise a spring.

### Claim 6 (depends on 4)

A gate according to claim 4 wherein the biasing means comprise a coil spring surrounding the rod, one end of the spring engaging the panel and an opposite end of the spring projecting from the rod for engagement with the auger outlet.

### Claim 7 (depends on 1)

A gate according to claim 1, wherein the panel comprises a plastic material.

### Claim 8

A grain auger having a tubular outlet and a bird gate mounted in the outlet, the gate comprising:
panel means positioned in the outlet and configured to extend across the outlet;
mounting means mounting the panel means in the outlet for movement between a closed position extending across the outlet and an open position extending along the outlet; and
biasing means biasing the panel means to the closed position.

### Claim 9 (depends on 8)

A gate according to claim 8 wherein the panel means comprise a single panel.

### Claim 10 (depends on 9)

An auger according to claim 9 wherein the mounting means comprise pivot means mounting a panel for pivotal movement about an axis extending across the outlet and eccentrically offset with respect to the outlet and the panel.

### Claim 11 (depends on 10)

An auger according to claim 10 wherein the pivot means comprise a rod and rod engaging lugs on the panel, opposite ends of the rod being engaged with the outlet.

### Claim 12 (depends on 8)

An auger according to claim 8, wherein the biasing means comprise a spring.

### Claim 13 (depends on 12)

An auger according to claim 12 wherein the biasing means comprise a coil spring positioned around the rod, with one end of the coil spring engaged with the panel and the opposite end of the spring engaged with the outlet.

### Claim 14 (depends on 9)

An auger according to claim 9, wherein the panel comprises a plastic material.