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US3728849A Expired / Lapsed US ⏱️ 0.0 years remaining

Hay loader

Assignee: Hay and Forage Industries
•
Filing: 1969-11-14
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Granted: 1973-04-24
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Expires: 1989-11-14
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Abstract

Abstract In the harvesting of agricultural crops, the crop is lifted off the ground continuously by a pickup unit as the vehicular harvesting machine is advanced across the field along the crop windrow. The machine has a crop-handling assembly which includes an elevator for receiving the crop from the pickup unit and continuously raising the crop to a level higher than the bed of the crop-receiving body of the machine. The crop-handling assembly also includes a conveyor which continuously receives the crop from the upper end of the elevator and moves the crop in a horizontal direction rearwardly for dumping into the open top of the body. The conveyor is extensible fore and aft of the body so that as the crop gravitates from the rear end of the conveyor it is spread evenly front to rear of the body. The entire elevatorconveyor assembly and the pickup unit thereon are also shiftable laterally with respect to the wheeled vehicle to spread the crop evenly from side to side of the body. The crop is fed between the side walls of the body and between upward extensions of such walls, and those extensions are shifted against the crop from time to time to compress it against the bed of the body and form a stack. Each extension also has a ram for compressing the sides of the stack in the body. The body is tiltable rearwardly and has a tailgate which may be unlocked and swung upwardly to permit the stack to be pushed rewardly out of the body off the tilted bed through use of a rearwardly moving, upright ''''false front.

Inventors

  • 👤 E Lundahl

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 12:01
CPC Classifications
A; A01; A01D; A01D85/00; A01D85/001; A01D85/004; A01D89/00; A01D90/00; A01D90/02; A01D90/08; A01D2090/086

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 180 words
In a harvesting method, the steps of which include: advancing a vehicle provided with a crop-receiving body across a field having a crop thereon; continuously picking up the crop from the field as the vehicle is advanced; continuously raising the picked up crop to a level higher than the bed of the body as the crop is picked up; continuously feeding the raised crop into the body as the crop is raised; spreading the fed crop evenly throughout the body as the crop is fed; shifting a portion of said body which receives said crop downwardly toward said bed from time to time as the crop builds up in the body to compress the crop until a compact stack of the crop is produced, conforming substantially in shape and size with the body; transporting the vehicle with the stack in said body thereof to an unloading area; and unloading the stack from the body and depositing the same in an upright position on a supporting surface at said area without materially disturbing the shape, size and compactness of the stack.
Claim 2
Dependent Claim 180 words
In a harvesting method, the steps of which include: advancing a vehicle provided with a crop-receiving body across a field having a crop thereon; continuously picking up the crop from the field as the vehicle is advanced; continuously raising the picked up crop to a level higher than the bed of the body as the crop is picked up; continuously feeding the raised crop into the body as the crop is raised; spreading the fed crop evenly throughout the body as the crop is fed; shifting a portion of said body which receives said crop downwardly toward said bed from time to time as the crop builds up in the body to compress the crop until a compact stack of the crop is produced, conforming substantially in shape and size with the body; transporting the vehicle with the stack in said body thereof to an unloading area; and unloading the stack from the body and depositing the same in an upright position on a supporting surface at said area without materially disturbing the shape, size and compactness of the stack.
Claim 3
Dependent Claim 29 words
In the invention of claim 1 wherein said fed crop enters the body in a stream that is shifted from time to time fore and aft of said body.
Claim 4
Dependent Claim 19 words
In the invention of claim 2 wherein said stream is shifted from time to time laterally of the body.
Claim 5
Dependent Claim 18 words
In the invention of claim 2 wherein said stream is reciprocated continuously fore and aft of the body.
Claim 6
Dependent Claim 19 words
In the invention of claim 4 wherein said stream is shifted from time to time laterally of the body.
Claim 7
Dependent Claim 16 words
In the invention of claim 4 wherein said stream is continuously reciprocated laterally of the body.
Claim 8
Dependent Claim 47 words
In the invention of claim 1 wherein the picked up crop is raised to said level at one end of the body, is then transferred above the bed along a path extending fore and aft of the body, and is then fed by gravity into the body.
Claim 9
Dependent Claim 28 words
In the invention of claim 1 wherein said body is tilted at said area and the stack is pushed off said bed through one end of the body.
Claim 10
Dependent Claim 51 words
In the invention of claim 1 wherein the picked up crop is elevated vertically at the forwardmost end of the body to a level above the latter, is then horizontally conveyed rearwardly over the top of the body, and is then dropped vertically in a continuously gravitating stream into the body.
Claim 11
Dependent Claim 36 words
In the invention of claim 9 wherein said stream is reciprocated continuously between the forwardmost and the rearmost ends of the body whereby to fold the crop into a plurality of superimposed layers in the body.
Claim 12
Dependent Claim 27 words
In the invention of claim 1 wherein said fed crop enters the body in a stream that is shifted from time to time laterally of the body.
Claim 13
Dependent Claim 24 words
In the invention of claim 1 wherein said fed crop enters the body in a stream that is continuously reciprocated laterally of the body.
Claim 14
Dependent Claim 38 words
In the invention of claim 1 wherein said compression of the crop includes a primary pressing action on the entire load toward said bed and a secondary pressing action along the sides of the body toward the bed.
Claim 15
Dependent Claim 61 words
In the invention of claim 1 wherein said fed crop enters the body in a stream that is continuously reciprocated laterally of the body whereby to fold the crop into a pluralitY of superimposed layers in the body, and wherein said compression of the crop includes a pressing action on the folds along the sides of the body toward the bed.

References Cited (Backward Citations)

US453369A Cited
US830292A Cited
US2585891A Cited
US3280727A Cited
US3402829A Cited
US3556327A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-23 1976-10-23 1977-04-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-23 1980-10-23 1981-04-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-23 1984-10-23 1985-04-24 $7700.00 Window Closed / Lapsed

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