专利检索_ .带非旋转工作部件的专利检索_ .带非旋转工作部件的专利检索查询

子分类：

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
21	meikle	US257039D		US257039A	1882-04-25

22	Improvement in cultivators	US202112D		US202112A	1878-04-09

23	Improvement in cultivators	US175256D		US175256A	1876-03-28

24	Improvement in cultivators	US135148D		US135148A	1873-01-21

25	Improvement in cultivators	US124218D		US124218A	1872-03-05

26	AGRICULTURAL MACHINE AND SYSTEM FOR REVISITING A PLANTED PLOT, AND RELATED METHOD	US15966253	2018-04-30	US20180242508A1	2018-08-30	Denis LAURICHESSE
This machine includes a tool (30) actuated by an actuating module (32); a dual-frequency satellite positioning module (40) able to take into account corrections relative to the disruptions affecting the propagation of radio navigation signals emitted by each of the visible radio navigation satellites and that are caused by the ionosphere, so as to determine an absolute position of the machine, and consequently of the tool, which is precise to within a centimeter; and a computer (50) able to compare the instantaneous absolute position of the tool and an absolute position of a current revisiting point, selected from among the revisiting points of a revisiting plan, the computer then being able to command the actuation module.
27	Row crop stalk and root remover	US498860	1995-07-06	US5613566A	1997-03-25	Philip D. Cox; Warren L. Thompson
A multiple rig row crop cultivator with first and second concave disks supported for operation at two different depths from adjacent rigs to provide two-step sizing of residue. The first disk, located ahead of the second disk, operates at a first depth in the soil to slice out the upper portions of roots and direct plant residue to the row middle. The second disk cuts to a depth approximately twice that of the first disk to further cut out root sections and move the root sections and other plant debris to the opposite row middle. After the disks move stalks and roots to the row middles, sweeps with ridging/bedding wings move the mixture of soil, stalks, and roots to the top of the bed to cover the groove made by the disks and preserve the original plant bed.
28	Cultivating attachment	US60062456	1956-07-27	US2876852A	1959-03-10	KENNEY WILLIAM D

29	Belt tightening drive control means for tractor	US28658652	1952-05-07	US2785762A	1957-03-19	GAHLER EDGAR E

30	sheffield	US2733646D		US2733646A	1956-02-07

31	Cultivator	US15702637	1937-08-02	US2131659A	1938-09-27	HARDY WILLIAM R

32	Cultivator attachment	US70512634	1934-01-03	US1982417A	1934-11-27	NATHANIEL BRUTON DAVID

33	Cultivator attachment	US22507227	1927-10-10	US1763271A	1930-06-10	SPECK WILLIAM C

34	Cultivator	US14805126	1926-11-12	US1664344A	1928-03-27	BECKER ELAM M

35	Cultivator	US7154425	1925-11-27	US1647658A	1927-11-01	PALMER NATHAN W

36	Wheeled cultivator	US52202521	1921-12-13	US1519275A	1924-12-16	SWAN JOHN B

37	Cultivator	US428559D		US428559A	1890-05-20

38	Cultivator	US324904D		US324904A	1885-08-25

39	Assigh oe tqpthe hapgood	US295937D		US295937A	1884-04-01

40	Cultivator	US294806D		US294806A	1884-03-11

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