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Class Information
Number: 172/681
Name: Earth working > Tool, standard or connection
Description: Apparatus comprising earth working elements, standards (i.e., a generally vertically extending member to which the earth working element is connected and which is in turn connected to a frame or beam member), or miscellaneous joints and connections between parts of an earth working apparatus not otherwise provided for.










Sub-classes under this class:

Class Number Class Name Patents
172/734 Adjustable 10
172/684.5 Frame-supported blade, scraper, or smoother drawn by vehicle 124
172/749 Having separable parts interconnected without detachable fastening means 16
172/753 Interlocked or interfitted parts 91
172/683 Latched in earth working position 14
172/721 Non-rectangular, symmetrical type 21
172/748 Pivoted tool 27
172/714 Plural earth engaging parts relatively movable because of operation 4
172/685 Plural tools 7
172/772 Removable tool portion (e.g., replaceable cutting or wearing element for tool) 62
172/702 Reversible part 7
172/701 Ridgers 34
172/754 Share and furrow slice inverting moldboard 6
172/747 Specific material 71
172/763 Specific standard and beam connection 66
172/773 Specific standard 23
172/762 Specific tool and standard connection 75
172/765 Specific tool shape 18
172/705 Spring biased or formed tool or tool part 79
172/699 Subsoilers 130
172/720 Subsurface blade (e.g., weeder, etc.) 25
172/712 Tool assumes different position for opposite draft 6
172/682 Tool flexed to change contour 2
172/701.1 Tool is transversely elongated blade (e.g., bulldozer) 46
172/684 Tool pivots on member when member moves 2
172/698 Tool with laterally spaced standards 15
172/713 Tooth 86
172/745 Welded 23
172/719 With add-on cutting or wearing element applied directly over, or onto, the original cutting element 82
172/746 With portion extended beyond landslide 0
172/752 With separable vertical planar longitudinal cutter (e.g., colter, etc.) 6
172/764 With separate runner, gauge, shoe or landslide 10


Patents under this class:

Patent Number Title Of Patent Date Issued
8322454 Structure for attaching a tool to a frame tube Dec. 4, 2012
7475738 Disk assembly for an agricultural implement Jan. 13, 2009
7100703 Golf green roller apparatus Sep. 5, 2006
7017677 Coarse carbide substrate cutting elements and method of forming the same Mar. 28, 2006
6881002 Spread-style coupler Apr. 19, 2005
6318006 Pusher trencher Nov. 20, 2001
6131670 Rotary tiller attachment to facilitate towing Oct. 17, 2000
6098722 Versatile implement system Aug. 8, 2000
5964301 Tilting loader bucket mechanism Oct. 12, 1999
5785460 Rotatable bracket for connecting tubes of differing cross section Jul. 28, 1998
5765650 Hydraulic power coupling for agricultural equipment Jun. 16, 1998
5479868 Wheels hub mount Jan. 2, 1996
5450910 Snow thrower to lawn care conversion apparatus Sep. 19, 1995
4924947 Bentleg plow May. 15, 1990
4189006 Soil cultivating implements Feb. 19, 1980
4117889 Apparatus for guiding row crop processing implements Oct. 3, 1978
4002209 Soil working tines and their mounting Jan. 11, 1977
3981366 Soil cultivator Sep. 21, 1976











 
 
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