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Class Information
Number: 172/71
Name: Earth working > With drive means for tool or cleaner > With non-driven tool (e.g., plow, harrow, drag, scraper, knife or roll, etc.) > Non-driven tool follows path of driven tool
Description: Apparatus in which the nondriven earth working element follows the path of the driven earth working element.










Sub-classes under this class:

Class Number Class Name Patents
172/72 Leveling drag or furrow shaper 27


Patents under this class:

Patent Number Title Of Patent Date Issued
8408324 Reducing build up of crop residue on shanks Apr. 2, 2013
8170785 Method for creating a route plan for agricultural machine systems May. 1, 2012
6926092 Hydraulic tiller assembly Aug. 9, 2005
6644416 Tiller Nov. 11, 2003
6554078 Multi-function farm implement for treating soil Apr. 29, 2003
6467550 Hydraulic tiller assembly Oct. 22, 2002
6056066 Soil regeneration apparatus and method May. 2, 2000
5743338 Conservation implement including a shredder Apr. 28, 1998
5265681 Landscape levelling and raking apparatus Nov. 30, 1993
5197551 Extended drag tool for a front tine tiller Mar. 30, 1993
5046346 Agricultural machine Sep. 10, 1991
4591001 Garden tillers May. 27, 1986
4560010 Soil layer cultivator with a pressure roller unit Dec. 24, 1985
4552079 Machine for planting seeds Nov. 12, 1985
4509438 Combination implement for agricultural cultivation Apr. 9, 1985
4499747 Power driven disc cultivator apparatus Feb. 19, 1985
4343366 Rotor tiller with reversely directed plow Aug. 10, 1982
4227580 Implement with side screening plates and soil roller Oct. 14, 1980
4197032 Apparatus and method for forming a continuous strip of paving Apr. 8, 1980
4140185 Soil cultivating implements Feb. 20, 1979
4127176 Soil cultivating implements Nov. 28, 1978
4114695 Rotary harrow with pivotable coupling assembly Sep. 19, 1978
4114696 Cultivators Sep. 19, 1978
4102402 Subsoiler Jul. 25, 1978
4072196 Cultivators Feb. 7, 1978
4059160 Rotary harrows Nov. 22, 1977
4051902 Soil cultivating implements Oct. 4, 1977
4051792 Structural orientation and protective apparatus for tillage assembly Oct. 4, 1977
4046202 Cultivators Sep. 6, 1977
4037544 Agricultural machine Jul. 26, 1977
4023510 Depth control and protective apparatus for tillage assembly May. 17, 1977
3983943 Soil cultivating implement combinations Oct. 5, 1976











 
 
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