US4825959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizer system
Assignee: Individual
•
Filing: 1987-11-13
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Granted: 1989-05-02
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Expires: 2007-11-13
Abstract
Abstract An improved fertilizer system for use in conjunction with a sweep blade comprises a pipe and a structural channel. The pipe carries liquid fertilizer along each blade and is protected along the blade by the channel. The channel is bolted or otherwise attached to the blade to form a box section in which the pipe is run so that the blade, pipe and channel are rigidly joined. Apertures are drilled through the channel and radially into the pipe at appropriate intervals along the blade to provide a suitable distribution of fertilizer into the soil as the sweep blade moves through the soil.
Inventors
- 👤 Loray W. Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:10
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A fertilizing distribution system for use in conjunction with a soil working blade; said system comprising: (a) a distribution pipe adapted to extend along the length of the blade; (b) means to protect said pipe from the soil by a protective structure; said protective structure forming a channel and enveloping said pipe and adapted to cooperate with the blade to substantially entirely encircle said pipe as said pipe extends along said blade; (c) means to attach said pipe and said protective structure as a fertilizer assembly to the blade; and (d) means to obtain a distribution of fertilizing fluid into the soil at spaced locations along said pipe.
Claim 2
Dependent Claim
108 words
A fertilizing distribution system for use in conjunction with a soil working blade; said system comprising: (a) a distribution pipe adapted to extend along the length of the blade; (b) means to protect said pipe from the soil by a protective structure; said protective structure forming a channel and enveloping said pipe and adapted to cooperate with the blade to substantially entirely encircle said pipe as said pipe extends along said blade; (c) means to attach said pipe and said protective structure as a fertilizer assembly to the blade; and (d) means to obtain a distribution of fertilizing fluid into the soil at spaced locations along said pipe.
Claim 3
Dependent Claim
42 words
In combination with the system of claim 1: (a) the blade; said blade having a lower surface; and (b) said means to protect said pipe from the soil is a structural box formed by said blade lower surface and said protective structure.
Claim 4
Dependent Claim
42 words
The system according to claim 2 wherein: (a) said means to attach said pipe and said protective structure to said blade is a plurality of nuts and bolts; said protective structure and said blade having appropriately spaced apertures to receive said bolts.
Claim 5
Dependent Claim
43 words
The system according to claim 1 wherein: (a) said means to distribute the fertilizing fluid into the soil are a plurality of apertures extending through both said protective structure and said distribution pipe; said apertures being located at spaced locations on said pipe.
Claim 6
Dependent Claim
125 words
A fertilizer and soil working apparatus comprising: (a) a sweep blade having a pair of wings; (b) a pair of fertilizer distribution pipes adapted to be connected to a source of fertilizer; each of said pipes extending substantially along an underside of a respective wing from a juncture of said wings to a distal end of the respective wing; (c) each of said pipes having a protective structure positioned in covering relationship to said pipe forming a channel; (d) fastening means to attach each of said protective structures to a respective wing; and (e) a plurality of spaced apertures along each of said pipes and protective structures allowing the distribution of fertilizer at spaced locations along the length of said blade through said protective structures.
Claim 7
Dependent Claim
125 words
A fertilizer and soil working apparatus comprising: (a) a sweep blade having a pair of wings; (b) a pair of fertilizer distribution pipes adapted to be connected to a source of fertilizer; each of said pipes extending substantially along an underside of a respective wing from a juncture of said wings to a distal end of the respective wing; (c) each of said pipes having a protective structure positioned in covering relationship to said pipe forming a channel; (d) fastening means to attach each of said protective structures to a respective wing; and (e) a plurality of spaced apertures along each of said pipes and protective structures allowing the distribution of fertilizer at spaced locations along the length of said blade through said protective structures.
Claim 8
Dependent Claim
34 words
The apparatus according to claim 5 wherein: (a) each of said protective channels is a C-shaped channel forming a box with said blade underside so as to enclose the section of a respective pipe.
Claim 9
Dependent Claim
22 words
The apparatus according to claim 6 wherein: (a) said apertures are openings drilled through both a respective pipe and a respective channel.
Claim 10
Dependent Claim
35 words
The apparatus according to claim 7 wherein: (a) said fastening means are a plurality of bolts extending through said respective channel and said blade with each of said bolts held in place by a fastener.
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |