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Title: US5964298: Integrated civil engineering and earthmoving system
[ Derwent Title ]

Country: US United States of America

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11 pages

Inventor: Greenspun, Philip; Melrose, MA

Assignee: GigaNet, Inc., Concord, MA
other patents from GIGANET, INC. (759285) (approx. 4)
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Published / Filed: 1999-10-12 / 1994-06-13

Application Number: US1994000259252

IPC Code: Advanced: E02F 3/84; E02F 9/26; G01C 15/00; G05D 1/02;
IPC-7: E02F 3/76; G06F 165/00;

ECLA Code: E02F3/84A2; E02F3/84B4; E02F9/26; G01C15/00; G05D1/02E14B; G05D1/02E16B; G05D1/02E16D2; S05D201/0202;

U.S. Class: Current: 172/004.5; 172/811; 701/050;
Original: 172/004.5; 172/811; 701/050;

Field of Search: 172/811,824,4.5 364/424.07 701/050

Priority Number:
1994-06-13  US1994000259252

Abstract:     An integrated earth contouring system uses a postioning system such as a GPS system to track the location of an earthmover on a work site. A display device visible to a driver of the earthmover displays a difference between an existing surface contour and a desired surface contour of the work site. The display device may show a three-dimensional image which rotates or a two-dimensional image having a cursor which rotates to represent the earthmover. A blade sensor tracks the position of the earthmover blade, and the display is updated to show changes in the existing surface contour when the earthmover is moved on the site with the blade height between the height of the existing surface and the height of the desired surface. An orientation sensor on board the earthmover provides the microprocessor with the orientation of the earthmover, and a memory unit is provided to allow storage and retrieval of surface data by the microprocessor. The system can integrate the tracking of earthmover activity and surface development, as well as a utility line avoidance feature and a hydrology analysis function.

Attorney, Agent or Firm: Cesari & McKenna, LLP ;

Primary / Asst. Examiners: Novosad, Christopher J.;

Maintenance Status: E1 Expired  Check current status
CC Certificate of Correction issued

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 12 claims
What is claimed is:     1. An earth-contouring system for modifying the surface contour of a work site, said system comprising:
  • A. an earthmover having a body and an earthmoving blade;
  • B. a positioning system for determining the position of the blade relative to the work site;
  • C. a display device on the earthmover for generating a display image, viewable to an operator of the earthmover, which indicates the difference between the existing contour of the surface of the work site and the desired contour of the surface of the work site at the location of the earthmoving blade; and
  • D. computing means located at a fixed position relative to the work site, responsive to the positioning system, for calculating the information for the display and transmitting the information to the display device on the earthmover.

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Description: Show description

Forward References: Show 26 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (26)   |   Backward references (9)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 7pp US3935645  1976-02 Okamoto et al.  Kabushiki Kaisha Komatsu Seisakusho Apparatus for indicating relative azimuth
Get PDF - 17pp US4282933  1981-08 Suganami et al.  Kabushiki Kaisha Komatsu Seisakusho Automatic control device for an earth working equipment
Get PDF - 21pp US4807131  1989-02 Clegg  Clegg Engineering, Inc. Grading system
Get PDF - 22pp US4818107  1989-04 Ono et al.  Kabushiki Kaisha Komatsu S eisakusho System for measuring the position of a moving body
Get PDF - 16pp US5174385  1992-12 Shinbo et al.  Kabushiki Kaisha Komatsu Seisakusho Blade control system for bulldozer
Get PDF - 9pp US5375663  1994-12 Teach  Spectra-Physics Laserplane, Inc. Earthmoving apparatus and method for grading land providing continuous resurveying
Get PDF - 35pp US5471391  1995-11 Gudat et al.  Caterpillar Inc. Method and apparatus for operating compacting machinery relative to a work site
Get PDF - 17pp US5477459  1995-12 Clegg et al.   Real time three-dimensional machine locating system
Get PDF - 11pp US5519620  1996-05 Talbot et al.  Trimble Navigation Limited Centimeter accurate global positioning system receiver for on-the-fly real-time kinematic measurement and control
Foreign References: None

Other Abstract Info: DERABS G1999-618741 DERABS G1999-618741

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