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Class Information
Number: 172/42
Name: Earth working > With drive means for tool or cleaner > Guided by walking attendant
Description: Apparatus in which a driven earth working element is mounted on a frame which element or frame is provided with a means to enable a walking attendant to steer, guide or otherwise manipulate the element or frame, such frame being propelled over the earth by the attendant, by the earth working element or by a traction member driven from a prime mover supported on the frame.










Sub-classes under this class:

Class Number Class Name Patents
172/43 With ground support vertically adjustable relative to frame 44


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8627897 Tiller housing Jan. 14, 2014
8607889 Tiller with removable battery Dec. 17, 2013
8499848 Gas tiller Aug. 6, 2013
8496069 Device for cultivating soil or brushing debris having a drive shaft and plurality of gears Jul. 30, 2013
8316564 Earth leveling and moving apparatus Nov. 27, 2012
8291991 Walk-behind soil aerator Oct. 23, 2012
8286721 Electric power hoe Oct. 16, 2012
8210272 Tiller Jul. 3, 2012
8201652 Work vehicle Jun. 19, 2012
8162072 Tiller with removable battery Apr. 24, 2012
8066081 Small-sized tiller Nov. 29, 2011
8056271 Earth leveling and moving apparatus Nov. 15, 2011
7878260 Tiller Feb. 1, 2011
7866409 Tilling machine transport and storage apparatuses and methods Jan. 11, 2011
7845442 Handle structure of walk-behind working machine Dec. 7, 2010
7779966 Front rotary working machine Aug. 24, 2010
7669667 Aerator with assembled multi-part crankshaft Mar. 2, 2010
7644779 Walk-behind implement with counter-rotating attachment Jan. 12, 2010
7584804 Walk-behind electric working machine Sep. 8, 2009
7293612 Walk aerator with ground following coring head Nov. 13, 2007
7237620 Electric garden tiller Jul. 3, 2007
7159377 Powered appliance and accessory Jan. 9, 2007
7143835 Walk-behind electric working machine Dec. 5, 2006
7096970 Compact bed edging machine Aug. 29, 2006
7096969 Walk aerator with inboard wheels Aug. 29, 2006
7096966 Edge cutter Aug. 29, 2006
7021393 Landscape tiller Apr. 4, 2006
6997268 Trimmer Feb. 14, 2006
6968906 Electric tilling machine Nov. 29, 2005
6945333 Convertible rear-tine tiller Sep. 20, 2005
6926091 Counter-rotating twin shaft system for gardening machines Aug. 9, 2005
6920939 Walk-behind electric cultivating machine Jul. 26, 2005
6904977 Portable handheld work apparatus Jun. 14, 2005
6883616 Walk-behind landscape edger/trencher Apr. 26, 2005
6874581 Compact bed edging machine Apr. 5, 2005
6860334 Walk-behind tiller Mar. 1, 2005
6854526 Walk-behind agricultural working machine Feb. 15, 2005
6830111 Walk behind apparatus for operating working attachments Dec. 14, 2004
6827152 Rotary head for a dethatching machine Dec. 7, 2004
6823947 Walk-behind cultivator Nov. 30, 2004
6779611 Walk-behind working machine Aug. 24, 2004
6766866 Tiller Jul. 27, 2004
6722445 Working machine having front-rotary working unit Apr. 20, 2004
6708773 Method and apparatus for an aerator with differential, steering assist and power lifting Mar. 23, 2004
6708774 Cultivator Mar. 23, 2004
6684960 Turf aerator Feb. 3, 2004
6651752 Support bracket for use with tiller Nov. 25, 2003
6651361 Compact machine for trenching and for installing cable, wire, tubing, and the like Nov. 25, 2003
6644416 Tiller Nov. 11, 2003
6643959 Implement having engine and transaxle module Nov. 11, 2003

1 2 3 4










 
 
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