US Patent No: 8,186,287
Number of patents in Portfolio can not be more than 2000
Depth adjustment assembly for a disc opener of an agricultural implement
Stats
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May 29, 2012
Issued date -
Nov 19, 2009
filing date -
12/621,959
serial no -
In Force
status
Importance
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Abstract
A disc hub assembly includes a shouldered spindle that is secured to a disc opener frame and to which a depth adjustment arm and a gauge wheel arm are connected. The disc hub, to which a ground opener disc is mounted, is disposed on the spindle in a manner that allows the disc to rotate around the spindle. A gauge wheel is connected to the gauge wheel arm. When the depth adjustment arm is rotated between depth setting positions the gauge wheel arm is also rotated. As the gauge wheel is connected to the gauge wheel arm, rotation of the gauge wheel arm causes rotation of the gauge wheel. The depth adjustment arm is spring biased into engagement with an arc of notches on the disc opener frame. The notches define a range of positions at which the depth adjustment arm may be positioned.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,796,550 Single angled blade coulter and fertilizer opener | 24 | 1985 | |
| 4,760,806 Conservation opener | 43 | 1986 | |
| 7,487,732 Boot with scraper for a fertilizer opener in an agricultural machine | 4 | 2006 | |
| 2008/0006,189 Boot with scraper for a fertilizer opener in an agricultural machine | 4 | 2006 | |
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| 7,481,278 System and method for a disc opener with gauge wheel depth adjustment assembly | 4 | 2007 | |
| 2010/0107,942 Seed Boot For Double-Shoot Disc Opener | 3 | 2008 | |
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| 5,481,990 Air drill apparatus | 13 | 1994 | |
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| 4,408,551 Row planter | 19 | 1981 | |
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| 6,105,251 Integrally retained bearing race with improved twisting resistance | 13 | 1997 | |
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| 6,659,193 Depth adjustment mechanism for farm implements | 7 | 2002 | |
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| 6,321,667 Adjustable gauge wheel for a planter | 11 | 2000 | |
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| 4,995,325 Setting wheels for seed drills | 5 | 1989 | |
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| 5,487,631 Machine tools | 8 | 1994 | |
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| 5,673,757 Ground opening device | 3 | 1995 | |
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| 5,887,664 Adjustable depth control mechanism for earth-penetrating disk | 10 | 1997 | |
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| 5,595,130 Planting unit | 32 | 1995 | |
| 5,904,107 Apparatus for reducing the effects of wear within seed planter gauge wheel hub assemblies | 6 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 29, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 29, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 29, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |