Grain bin with side walls having integral vertical stiffeners and air conduits

• US 5,632,674 A
• Filed: 11/02/1995
• Issued: 05/27/1997
• Est. Priority Date: 11/02/1995
• Status: Expired due to Term

• Current Assignee: CTB Incorporated (Berkshire Hathaway Incorporated)
• Original Assignee: Butler Manufacturing Company (Bluescope Steel Limited)
• Inventors: Miller, George E. Jr.
• Primary Examiner(s): Joyce, Harold
• Application Number:
  US08/552,081
• Time in Patent Office: 572 Days
• Field of Search: 29/897.32, 454/174, 454/175, 454/181, 454/182, 34/232, 34/233
• US Class Current: 454/182
• CPC Class Codes: E04H 7/30 mainly of metal
• CPC Class Codes: F26B 9/063 for drying granular material in bulk, e.g. grain bins or silos with false floor shallow layer rotary sweep drying bins F26B9/10; perforated wall silos with drying air channels in the stack F26B9/103
• CPC Class Codes: Y02A 40/51 specially adapted for storing agricultural or horticultural products
• CPC Class Codes: Y10T 29/49629 Panel

Abstract

A grain bin structure for storing, conditioning, and drying grain having a floor, side walls, and a roof. The side walls are formed with a plurality of horizontal and vertical corrugations formed integrally therein and within a common circumferential plane. The vertical corrugations function as stiffeners and as vertical air conduits to dispense pressurized air about the periphery of the bin. Optionally, conduit tubes may be located within the vertically disposed corrugations to further channel air flow. These conduits are formed with an inner wall substantially flush with the interior of the horizontal corrugation, thereby maintaining a low silhouette while maximizing a cross-sectional area within each conduit to avoid undue restriction of air flow.

Claims

1. In a grain bin for storing and drying grain, having a floor, a roof, and a bin side wall extending therebetween, said improvement comprising:

a bin side wall containing a plurality of horizontally arranged corrugations extending about a circumference of the bin, said horizontal corrugations defining inner and outer circumferential planes of said wall, said side wall further containing a plurality of vertically extending stiffeners integrally formed therein, said stiffeners each containing a vertically recessed channel which traverses said horizonal corrugations to form passageways upward along said side wall between said inner and outer circumferential planes.

2. In a grain bin according to claim 1, further comprising at least one hollow conduit received in a corresponding passageway, for guiding air vertically along said side wall, said conduit including perforations therein to discharge the air at desired points along said side wall, said conduit having an interior face aligning substantially flush with said inner circumferential plane of said side wall.

3. In a grain bin according to claim 1, wherein each of said stiffeners includes a recessed vertical base section and flared side flanges projecting from opposite edges of said base section toward an interior of the bin, said base section and side flanges being located between said inner and outer circumferential planes of said side wall.

4. In a grain bin according to claim 2, wherein said conduit if formed with a polyhedral cross-section, a center of which is located between the inner and outer circumferential planes of said side wall.

5. In a grain bin according to claim 2, wherein said conduit is formed with a trapezoidally shaped cross-section.

6. In a grain bin according to claim 2, wherein said conduit includes side segments aligned in a facing relation with corresponding opposed flared flanges of said passage, said perforations aligning with corresponding valleys of said side wall.

7. In a grain bid according to claim 1, wherein said recessed channel includes a base section extending along a plane parallel to, and between said inner and outer circumferential planes, integral opposed beveled flanges projection radially inward from said base section.

8. In a grain bin according to claim 1, wherein said recessed channel includes side flanges formed integral with said corrugations, said flanges extending between said inner and outer circumferential planes.

9. In a grain bin according to claim 1, wherein said recessed channel includes alternative distribution and transfer segments aligned in a common plane said distribution segments aligning with inner valleys of said horizonal corrugations, said transfer segments projecting vertically through and interrupting, inner peaks of said horizontal corrugations.

10. A method of forming a side sheet for a grain bin, comprising the steps of:

forming corrugations in a side sheet extending along a longitudinal axis of said side sheet; and

forming stiffeners in said side sheet, said stiffeners aligned laterally to said axis, said stiffeners being formed between inner and outer circumferential planes defined by inner and outer peaks of said corrugations,

said stiffener forming step including pressing a recessed passage in said side sheet, said passage containing distribution segments aligned flush with inner valleys of said corrugations and containing transfer segments traversing, and forming notches in, inner peaks of said side wall.

11. A method of forming a side sheet for a grain bin, comprising the steps of:

forming corrugations in a side sheet extending parallel to a longitudinal axis of said side sheet;

forming stiffeners in said side sheet, said stiffeners aligned laterally to said axis, said stiffeners being formed between inner and outer circumferential planes defined by inner and outer peaks of said corrugations;

said stiffener forming step including pressing a lateral recessed channel in an inner side of said sheet, said recessed channel containing a base section traversing said corrugations; and

securing a conduit within the recessed channel formed by said stiffeners and aligning an inner face of said conduit substantially flush with inner peaks of said corrugations.