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Class Information
Number: 172/699
Name: Earth working > Tool, standard or connection > Subsoilers
Description: Apparatus comprising an earth working element specifically disclosed as working deep in the soil and having such a configuration that it merely lifts the soil and does not shift it laterally of the line of draft.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588091 |
Shank for an agricultural implement |
Sep. 15, 2009 |
| 7568439 |
Fertilizer knife and point structure |
Aug. 4, 2009 |
| 7445053 |
Ripping device for an earthmoving machine |
Nov. 4, 2008 |
| 7059257 |
Minimum till seeding knife |
Jun. 13, 2006 |
| 6997121 |
Minimum tillage agricultural implement having furrow opening shank assemblies |
Feb. 14, 2006 |
| 6860336 |
Subsoil fertilizer applicator |
Mar. 1, 2005 |
| 6739404 |
Wheel supported implement for working and grading soil |
May. 25, 2004 |
| 6662479 |
Tree and stump removal |
Dec. 16, 2003 |
| 6640731 |
Dual tungsten carbide boot |
Nov. 4, 2003 |
| 6557646 |
Mulch-till ripper |
May. 6, 2003 |
| 6474909 |
Fluid assisted ground wedging device |
Nov. 5, 2002 |
| 6356830 |
System and method for automated measurement of soil pH |
Mar. 12, 2002 |
| 6332412 |
Paired row furrow opener |
Dec. 25, 2001 |
| 6311784 |
Energy storage ripping device |
Nov. 6, 2001 |
| 6276463 |
Compacted soil and rock raising blade |
Aug. 21, 2001 |
| 6199637 |
Subsoiling machine |
Mar. 13, 2001 |
| 6026908 |
Blade, particularly for blade-bearing chassis |
Feb. 22, 2000 |
| 5695012 |
Adjustable subsoiler with staged shanks |
Dec. 9, 1997 |
| 5685377 |
Auto-return function for a bulldozer ripper |
Nov. 11, 1997 |
| H1642 |
Wear and impact tolerant plow blade |
Apr. 1, 1997 |
| 5605196 |
Multi-piece subsoiler unit for an agricultural implement |
Feb. 25, 1997 |
| 5499685 |
Strip tillage soil conditioner apparatus and method |
Mar. 19, 1996 |
| 5490340 |
Root grubber |
Feb. 13, 1996 |
| 5456028 |
Backhoe bucket ripper attachment |
Oct. 10, 1995 |
| 5437336 |
Method and apparatus for creating an advantageous growing zone in a soilbed having a topsoil stratum and a hardpan stratum |
Aug. 1, 1995 |
| 5429197 |
Blade for a soil agitating device |
Jul. 4, 1995 |
| 5415236 |
Subsoiler having rearwardly disposed soil fracturing structure |
May. 16, 1995 |
| 5392541 |
Vibratory plow assembly |
Feb. 28, 1995 |
| 5386877 |
High voltage ripping apparatus |
Feb. 7, 1995 |
| 5314029 |
Pyramidal shaped, hardened insert for an agricultural tool |
May. 24, 1994 |
| 5293944 |
Method of automatically controlling impact ripper |
Mar. 15, 1994 |
| 5249633 |
Field breaking implement |
Oct. 5, 1993 |
| 5215150 |
Winged subsoil plow |
Jun. 1, 1993 |
| 5165487 |
Deep ripper point |
Nov. 24, 1992 |
| 5121800 |
Soil loosening device |
Jun. 16, 1992 |
| 5119888 |
Replaceable edge for trenching plow blade |
Jun. 9, 1992 |
| 5103918 |
Tillage unit |
Apr. 14, 1992 |
| 5050685 |
Split bentleg plow |
Sep. 24, 1991 |
| 4991659 |
Ripper assembly with pitch control and integral frame and push block |
Feb. 12, 1991 |
| 4974681 |
Method for fracturing sub-surface hardpan by drawing a particularly-angled tine therethrough |
Dec. 4, 1990 |
| 4932478 |
Tooth point for earth working |
Jun. 12, 1990 |
| RE33226 |
Blade shank assembly used in a fertilizer applicator assembly |
Jun. 5, 1990 |
| 4924946 |
Apparatus for deep plowing highly compacted soil |
May. 15, 1990 |
| 4899830 |
Cutting tooth assembly for heavy duty earth working machines |
Feb. 13, 1990 |
| 4850434 |
Vibrating deep ripper |
Jul. 25, 1989 |
| 4834581 |
Root cutting cable laying plow |
May. 30, 1989 |
| 4817727 |
Subtiller |
Apr. 4, 1989 |
| 4815545 |
Subsoil blade ploughs |
Mar. 28, 1989 |
| 4813491 |
Tillage point |
Mar. 21, 1989 |
| 4793733 |
Scarifier |
Dec. 27, 1988 |
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