US3799079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator for depositing anhydrous ammonia underground
Assignee: DIETRICH Manufacturing Inc
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Filing: 1972-07-10
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Granted: 1974-03-26
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Expires: 1992-07-10
Abstract
Abstract The applicator includes a coulter, applicator knife and packer wheel mounted in trailing relation to a frame which in turn is spring-mounted to a tool bar drawn by a tractor. The frame facilitates removal of the coulter or applicator knife for maintenance or replacement while maintaining the knife in a position directly behind the coulter. The frame further permits vertical adjustment of the applicator knife relative to the coulter; and means are employed for lateral adjustment of the knife to maintain it directly behind the coulter during operation.
Inventors
- 👤 W Dietrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:32
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/025
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
219 words
An attachment for applying liquid fertilizer underground and adapted to be attached to a tool bar drawn by a tractor comprising: a frame having a forward and a rear end and including an anti-deflection member extending from the forward end of said frame downwardly to an intermediate part thereof; a coulter rotatably mounted to one side of said frame adjacent said intermediate part; an applicator knife means secured to said frame directly behind said coulter; spring mounting means connecting said frame to said tool bar for permitting said coulter and frame to rotate about an axis located behind said tool bar and above the axis of rotation of said coulter; said spring mounting means comprising rigid mounting means for rigidly attaching to said transverse tool bar, a hinge plate beneath said rigid attachment, a sleeve rigidly secured to the rear end of said hinge plate, a pin pivotally connecting said sleeve to said rigid mounting means, said anti-deflection member including a flat steel member with its width extending laterally in the direction of travel of said coulter and welded at its upper forward end to said sleeve, said member eXtending rearwardly and downwardly therefrom to said intermediate part of said frame; and a packer wheel assembly mounted to the tail end of said frame behind said applicator knife means.
Claim 2
Dependent Claim
219 words
An attachment for applying liquid fertilizer underground and adapted to be attached to a tool bar drawn by a tractor comprising: a frame having a forward and a rear end and including an anti-deflection member extending from the forward end of said frame downwardly to an intermediate part thereof; a coulter rotatably mounted to one side of said frame adjacent said intermediate part; an applicator knife means secured to said frame directly behind said coulter; spring mounting means connecting said frame to said tool bar for permitting said coulter and frame to rotate about an axis located behind said tool bar and above the axis of rotation of said coulter; said spring mounting means comprising rigid mounting means for rigidly attaching to said transverse tool bar, a hinge plate beneath said rigid attachment, a sleeve rigidly secured to the rear end of said hinge plate, a pin pivotally connecting said sleeve to said rigid mounting means, said anti-deflection member including a flat steel member with its width extending laterally in the direction of travel of said coulter and welded at its upper forward end to said sleeve, said member eXtending rearwardly and downwardly therefrom to said intermediate part of said frame; and a packer wheel assembly mounted to the tail end of said frame behind said applicator knife means.
Claim 3
Dependent Claim
42 words
The system of claim 1 further comprising a stub shaft secured to same frame and extending to one side thereof for rotatably mounting said coulter at said intermediate location below and to the rear of the pivotal connection to a tool bar.
Claim 4
Dependent Claim
61 words
The apparatus of claim 1 further comprising a vertical mounting plate at the intermediate location of said frame for mounting said applicator knife, said mounting plate including a forward and a rear set of vertically spaced apertures for receiving a bolt and attaching said applicator knife thereto, whereby said applicator knife may be adjusted vertically or fore-and-aft relative to said coulter.
Claim 5
Dependent Claim
35 words
The apparatus of claim 3 further comprising means for adjusting the lateral position of said applicator knife so that it may always be located directly behind said coulter and follow in the slit initiated thereby.
Claim 6
Dependent Claim
202 words
Apparatus for applying liquid fertilizer underground and adapted to be attached to the tool bar of a tractor comprising: a frame including first anti-deflection means comprising a steel bar elongated in the direction of travel of said tractor and having its width extending laterally of the intended direction of travel of said tractor when said frame is attached thereto; a stub shaft welded to said frame and extending laterally to one side thereof; a coulter rotatably and removably mounted to said stub shaft; an applicator knife means mounted to said frame adjacent the rear end of said first anti-deflection means and behind said coulter; means for laterally adjusting the location of said applicator knife means relative to said coulter; spring mounting means for hingedly connecting said frame to said tool bar and including a hinge plate beneath said tool bar and mounted for pivotal movement about a horizontal axis behind said tool bar; said frame further comprising second anti-deflection means including a brace extending from said hinge plate to a location on said frame adjacent said stub shaft to resist deflection of said frame by said coulter during operation; and a packer wheel mounted to said frame behind said applicator knife means.
Claim 7
Dependent Claim
202 words
Apparatus for applying liquid fertilizer underground and adapted to be attached to the tool bar of a tractor comprising: a frame including first anti-deflection means comprising a steel bar elongated in the direction of travel of said tractor and having its width extending laterally of the intended direction of travel of said tractor when said frame is attached thereto; a stub shaft welded to said frame and extending laterally to one side thereof; a coulter rotatably and removably mounted to said stub shaft; an applicator knife means mounted to said frame adjacent the rear end of said first anti-deflection means and behind said coulter; means for laterally adjusting the location of said applicator knife means relative to said coulter; spring mounting means for hingedly connecting said frame to said tool bar and including a hinge plate beneath said tool bar and mounted for pivotal movement about a horizontal axis behind said tool bar; said frame further comprising second anti-deflection means including a brace extending from said hinge plate to a location on said frame adjacent said stub shaft to resist deflection of said frame by said coulter during operation; and a packer wheel mounted to said frame behind said applicator knife means.
Claim 8
Dependent Claim
27 words
THe apparatus of claim 5 wherein said means for laterally adjusting the location of said applicator knife comprises shim means interposed between said frame and said knife.
Claim 9
Dependent Claim
35 words
The apparatus of claim 5 wherein said applicator knife means comprises a knife element with a conduit attached rearwardly thereto for depositing liquid fertilizer to the opening made by said coulter and said knife element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |