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Browse by Category: Main > Construction
Class Information
Number: 37/907
Name: Excavating > Automatic leveling excavators
Description: Automatic leveling excavators.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7356949 Scraping device and a system and a method for collecting materials Apr. 15, 2008
7246456 Linked mode for a multi-axis machine control Jul. 24, 2007
7066276 Method and apparatus for excavating earth to a desired depth Jun. 27, 2006
6948267 Device for optimization of the thickness of an ice layer Sep. 27, 2005
6910289 Scraping device and a system and a method for collecting materials Jun. 28, 2005
6655465 Blade control apparatuses and methods for an earth-moving machine Dec. 2, 2003
6484083 Tandem robot control system and method for controlling mobile robots in tandem Nov. 19, 2002
5953838 Control for hydraulically operated construction machine having multiple tandem articulated members Sep. 21, 1999
5951613 Apparatus and method for determining the position of a work implement Sep. 14, 1999
5941658 Cross-slope level control for mobile machinery Aug. 24, 1999
5815826 Method for determining the productivity of an earth moving machines Sep. 29, 1998
5806604 Apparatus for depth monitoring Sep. 15, 1998
5572809 Control for hydraulically operated construction machine having multiple tandem articulated members Nov. 12, 1996
5511326 Rotating disk-type ditcher Apr. 30, 1996
5375663 Earthmoving apparatus and method for grading land providing continuous resurveying Dec. 27, 1994
5307570 Damping device for dirt scrapers May. 3, 1994
5174385 Blade control system for bulldozer Dec. 29, 1992
5141384 Multi-purpose articulated drag arm digging and hauling vehicle Aug. 25, 1992
5120182 Multi-purpose articulated bucket lift digging and hauling vehicle Jun. 9, 1992
5078215 Method and apparatus for controlling the slope of a blade on a motorgrader Jan. 7, 1992
5035290 Height sensing device including an ultrasonic sensor and a mechanical sensor Jul. 30, 1991
5022763 Receiver for rotating lasers used for guiding machines, particularly public works machines Jun. 11, 1991
5009544 Method and machine for working an area of ground, in particular for surfacing a road Apr. 23, 1991
4976054 Snowplow leveling system Dec. 11, 1990
4933853 Ultrasonic grade and auger control Jun. 12, 1990
4926948 Method and apparatus for controlling motorgrader cross slope cut May. 22, 1990
4888890 Laser control of excavating machine digging depth Dec. 26, 1989
4887371 Dredges Dec. 19, 1989
4864746 Apparatus for compensating stop position of bucket Sep. 12, 1989
4807131 Grading system Feb. 21, 1989
4736534 Ditcher method and apparatus Apr. 12, 1988
4718537 Feeder head assembly Jan. 12, 1988
4650017 Crawler-mounted machine for travel over natural terrain Mar. 17, 1987
4488233 Path indicating apparatus of moving vehicle Dec. 11, 1984
4473319 Controlled resurfacing of roads and the like Sep. 25, 1984
4343099 Apparatus for the parallel guidance of the bucket of a hydraulic excavator Aug. 10, 1982
4288196 Computer controlled backhoe Sep. 8, 1981
4273196 Automatic control system for maintaining blade in predetermined relationship to laser beam Jun. 16, 1981
4255883 Attitude control system Mar. 17, 1981
4197032 Apparatus and method for forming a continuous strip of paving Apr. 8, 1980
4162708 Tool carrying vehicle with laser control apparatus Jul. 31, 1979
4140193 Automatic steering for construction machines Feb. 20, 1979
4107859 Depth indicating and depth controlling devices for earth moving machines Aug. 22, 1978
4081033 Slope control system Mar. 28, 1978
4069774 Digging and planting machine having plural surface detecting and signalling means Jan. 24, 1978
4055222 Earth moving implement with adjustable wheel assembly Oct. 25, 1977
4045893 Automated planer Sep. 6, 1977
4041623 Grade cutting machine Aug. 16, 1977
4034490 Automatic depth control for endless chain type trencher Jul. 12, 1977
3999314 Small sub-grader Dec. 28, 1976

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