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US3559599A Expired / Lapsed US ⏱️ 0.0 years remaining

Machine for planting and sealing furrow with transparent material

Assignee: The Campbell's Co
•
Filing: 1968-12-06
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Granted: 1971-02-02
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Expires: 1988-12-06
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Abstract

Abstract A field-cultivating machine which while moving across a field forms a selectively shaped furrow in the soil, prepares the soil for planting, plants seeds or seedlings in the furrow, and then forms a closed chamber by sealing a strip of plastic film over the top of the furrow and into the soil along both sides which by limiting temperature range in the furrow, promotes seed germination and accelerates plant growth. The machine is drawn by a tractor and includes a plow and furrow-shaping structure which support the sides of the furrow while planting and sealing are completed. The soil is prepared by devices which introduce fertilizer, water, insecticide and herbicide into the furrow and then the seeds or seedlings are planted in the bottom of the furrow. A strip of translucent plastic film is continuously laid and supported over the furrow by at least one surface while the edges of the film are pressed into preformed grooves extending along the sides of the furrow. Soil discs place soil on the film edges while they are held in the grooves and packing wheels press the soil firmly against the film sealing the edges. Shaped slits are mechanically made in the film at intervals over the furrow to allow ingress of water and a limited exchange of air. This invention relates to an apparatus and method for creating a plurality of plant growth chambers in an ordinary field in which the temperature is substantially regulated for the purpose of promoting seed germination and plant growth for an initial critical growth period. In greater detail, this invention teaches the advantages of use of translucent mulch such as plastic film to seal the top of field furrows, which during the same operation, are formed, prepared for seeding and planted for the purpose of enhancing plant growth by eliminating seed and plant injury caused by frost and other harsh weather conditions.

Inventors

  • 👤 Alfred D Hoadley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 16:46
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/37; A01C; A01C5/00; A01C5/06; A01C5/066; A01C7/00; A01C7/06; A01G13/39; Y; Y10; Y10S; Y10S111/00; Y10S111/915

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 55 words
The machine as defined in claim 1 wherein the mulch is provided with a series of spaced apart holes extending generally lengthwise along the center of the mulch so that after the mulch is laid over the top of the furrow the holes permit the ingress of rain through the mulch and into the furrow.
Claim 2
Dependent Claim 37 words
The machine as defined in claim 2 further including means mounted on the frame in front of the mulch supply for placing fertilizer in the furrow before the mulch is laid over the top of the furrow.
Claim 3
Dependent Claim 37 words
The machine as defined in claim 3 further including means mounted on the frame in front of the mulch supply for placing insecticide in the furrow before the mulch is laid over the top of the furrow.
Claim 4
Dependent Claim 37 words
The machine as defined in claim 4 further including means mounted on the frame in front of the mulch supply for placing water in the furrow before the mulch is laid over the top of the furrow.
Claim 5
Dependent Claim 48 words
The machine as defined in claim 5 further including means mounted on the frame to the rear of the mulch supply for placing herbicide in the furrow at a location adjacent the rear of the frame and after the mulch is laid over the top of the furrow.
Claim 6
Dependent Claim 15 words
The machine as defined in claim 2 wherein the mulch is a transparent plastic film.
Claim 7
Dependent Claim 53 words
The machine as defined in claim 2 further including means mounted on the frame in front of the mulch supply to form a pair of grooves in the soil in the opposing shoulders of said furrow, the edges of the mulch being pressed into said grooves as the machine moves across the field.
Claim 8
Dependent Claim 58 words
The machine as defined in claim 8 further including means mounted on the frame to the rear of the means for sealing the edges of the mulch in the soil along the furrow shoulders for packing the soil on top of the edges of the mulch and thereby sealing the mulch in the opposing shoulders of the furrow.
Claim 9
Dependent Claim 60 words
The machine as defined in claim 9 wherein the means for supporting the mulch in said taut condition comprise a pair of horizontal surfaces mounted on the top of said sides of the furrow-supporting structure, said surfaces extending rearwardly from a location adjacent the mulch supply to a location adjacent the means for packing the soil on the mulch edges.
Claim 10
Dependent Claim 86 words
The machine as defined in claim 10 further including a pair of wheels attached to and supporting the front of the frame and a pair of wheels attached to and supporting the rear of the frame above the surface of the field, and means connecting the wheels and the frame to allow the frame to be adjusted in height in relation to the surface of the field to thereby vary the depth of the furrow formed in the field as the frame moves across the field.
Claim 11
Dependent Claim 79 words
The machine as defined in claim 11 further including at least one rod having a heated tip for forming spaced apart holes in the mulch, said rod being mounted on the frame to the rear of the mulch supply for generally vertical reciprocating movement in relation to the generally horizontal movement of the mulch so that the rod tip penetrates the mulch at intervals to form spaced apart holes in the mulch laid over the top of the furrow.

References Cited (Backward Citations)

US2078872A Cited
US3180290A Cited
US3293797A Cited
US3353297A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-01 1974-08-03 1975-02-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-01 1978-08-03 1979-02-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-01 1982-08-03 1983-02-02 $7700.00 Window Closed / Lapsed

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