# US 8,782,919 B1 · Grain drying apparatus

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- Number: US 8,782,919 B1
- Document ID: US8782919B1
- Status: Granted
- Kind: B1
- Application number: 13/348,621
- Filed: 2012-01-11
- Granted: 2014-07-22
- Earliest claimed: 2012-01-11
- Applicants: Allan Anderson
- Inventors: Allan Anderson
- Web page: https://patentgrep.com/patent/US8782919B1

## CPC

- F26B 17/12: with movement performed solely by gravity {, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft}
- F26B 2200/06: Grains, e.g. cereals, wheat, rice, corn
- F26B: DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM (drying devices for combines A01D41/133; racks for drying fruit or vegetables A01F25/12; drying foodstuffs A23; drying hair A45D20/00; body-drying implements A47K10/00; drying household articles A47L; drying gases or vapours B01D; chemical or physical processes for dewatering or like separating liquids from solids B01D43/00; centrifugal apparatus B04; drying ceramics C04B33/30; drying yarns or fabrics in association with some other form of treatment D06C; drying frames for laundry without heating or positive air circulation, domestic laundry-or spin-driers, wringing or hot pressing laundry D06F; furnaces, kilns, ovens F27)

## Abstract

A grain drying apparatus includes a housing for receiving grain. The housing has a bottom wall and a plurality of supports being attached to and extending downwardly from the bottom wall. An outer wall is attached to and extends upwardly from the bottom wall. An inner wall is positioned within the outer wall. A receiving space is located between the inner and outer walls and receives grain emptied into the housing. The inner wall has a bottom edge spaced from the bottom wall to define a release aperture that allows grain to flow outwardly from the receiving space under the inner wall. A heating assembly is mounted within the housing to heat the grain. An agitator is mounted on the housing adjacent to the bottom wall. The agitator extends under the inner wall and through the release aperture to agitate grain positioned in the receiving space.

## Claims

### Claim 1

A grain dryer apparatus for receiving grain and drying the grain as the grain travels through the apparatus, said apparatus including:
a housing for receiving grain, said housing including;
a bottom wall, a plurality of supports being attached to and extending downwardly from said bottom wall, said supports supporting said bottom wall above a ground surface, said bottom wall having a planar upper surface, said upper surface being horizontally oriented;
an outer wall being attached to and extending upwardly from said bottom wall;
an inner wall being positioned within said outer wall;
a receiving space being defined between said inner and outer walls, said receiving space being configured to receive grain;
said inner wall having a bottom edge spaced from said bottom wall to define a release aperture configured for allowing grain to flow outwardly from said receiving space under said inner wall, said release aperture being positioned over said upper surface of said bottom wall;
a heating assembly being mounted within said housing; and
an agitator being mounted on said housing, said agitator being positioned adjacent to said bottom wall, said agitator extending under said inner wall and through said release aperture to agitate grain positioned in said receiving space adjacent to said outer wall.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein said agitator includes:
a mount extending around and being rotatable with respect to a central area of said bottom wall;
a drive assembly being mechanically coupled to said mount and rotating said mount when actuated; and
a plurality of arms being attached to and extending outwardly from said mount, said arms being positioned over said bottom wall, each of said arms having a distal end with respect to said mount, at least one of said distal ends extending under said inner wall.

### Claim 3 (depends on 2)

The apparatus according to claim 2, wherein each of said arms includes a first section attached to said mount and a second section including said distal end, said first and section sections being adjustably coupled to each other to allow a distance between said distal end and said outer wall to be adjusted.

### Claim 4 (depends on 2)

The apparatus according to claim 2, wherein each of said arms has a forward edge and a rearward edge, said forward edge being concavely arcuate.

### Claim 5 (depends on 3)

The apparatus according to claim 3, further including:
a plurality of sweeps, each of said arms having one of said sweeps attached thereto, said sweeps each extending downwardly from an associated one of said arms and abutting said bottom wall, said sweeps being attached to said second sections of each of said arms;
said bottom wall having a channel extending therethrough configured for receiving grain, said channel extending around said air inlet, said sweeps extending from about said inner wall and to said channel; and
a conveyor assembly being in communication with said channel, said conveyor assembly being configured to receive and transport grain away from said housing.

### Claim 6 (depends on 2)

The apparatus according to claim 2, further including:
a plurality of sweeps, each of said arms having one of said sweeps attached thereto, said sweeps each extending downwardly from an associated one of said arms and abutting said bottom wall;
said bottom wall having a channel extending therethrough configured for receiving grain, said channel extending around said air inlet, said sweeps extending from about said inner wall and to said channel; and
a conveyor assembly being in communication with said channel, said conveyor assembly being configured to receive and transport grain away from said housing.

### Claim 7

A grain dryer apparatus for receiving grain and drying the grain as the grain travels through the apparatus, said apparatus including:
a housing for receiving grain, said housing including;
a bottom wall, a plurality of supports being attached to and extending downwardly from said bottom wall, said supports supporting said bottom wall above a ground surface, said bottom wall having a planar upper surface, said upper surface being horizontally oriented;
an outer wall being attached to and extending upwardly from said bottom wall;
an inner wall being positioned within said outer wall;
a receiving space being defined between said inner and outer walls, said receiving space being configured to receive grain;
said inner wall having a bottom edge spaced from said bottom wall to define a release aperture configured for allowing grain to flow outwardly from said receiving space under said inner wall, said release aperture being positioned over said upper surface of said bottom wall;
a heating assembly being mounted within said housing;
an agitator being mounted on said housing, said agitator being positioned adjacent to said bottom wall, said agitator extending under said inner wall and through said release aperture to agitate grain positioned in said receiving space adjacent to said outer wall, said agitator including;
a mount extending around and being rotatable with respect to a central area of said bottom wall;
a drive assembly being mechanically coupled to said mount and rotating said mount when actuated;
a plurality of arms being attached to and extending outwardly from said mount, said arms being positioned over said bottom wall, each of said arms having a distal end with respect to said mount, at least one of said distal ends extending under said inner wall, each of said arms including a first section attached to said mount and a second section including said distal end, said first and section sections being adjustably coupled to each other to allow a distance between said distal end and said outer wall to be adjusted, each of said arms having a forward edge and a rearward edge, said forward edge being concavely arcuate;
a plurality of sweeps, each of said arms having one of said sweeps attached thereto, said sweeps each extending downwardly from an associated one of said arms and abutting said bottom wall, said sweeps being attached to said second sections of each of said arms;
said bottom wall having a channel extending therethrough configured for receiving grain, said channel extending around said air inlet, said sweeps extending from said inner wall and to said channel;
a conveyor assembly being in communication with said channel, said conveyor assembly being configured to receive and transport grain away from said housing.