The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2005
Filed:
Feb. 06, 2003
Kurt R. Zimmerman, Mountain View, CA (US);
Avi Gross, Palo Alto, CA (US);
Michael O'connor, Redwood City, CA (US);
Glen Sapilewski, Redwood City, CA (US);
David G. Lawrence, Mountain View, CA (US);
H. Stewart Cobb, Palo Alto, CA (US);
Lars Leckie, San Francisco, CA (US);
Paul Y. Montgomery, Menlo Park, CA (US);
Kurt R. Zimmerman, Mountain View, CA (US);
Avi Gross, Palo Alto, CA (US);
Michael O'Connor, Redwood City, CA (US);
Glen Sapilewski, Redwood City, CA (US);
David G. Lawrence, Mountain View, CA (US);
H. Stewart Cobb, Palo Alto, CA (US);
Lars Leckie, San Francisco, CA (US);
Paul Y. Montgomery, Menlo Park, CA (US);
Novariant, Inc., Menlo Park, CA (US);
Abstract
A land-leveling system that uses the Global Positioning System is provided. The system provides for an earth-moving machine mounted with an antenna that receives GPS signals from the satellites of the Global Positioning System. The earth-moving machine comprises a vehicle attached to a work implement, which is also connected to an actuator. A decision unit mounted on the vehicle sends control signals to the actuator, which controls the elevation of the work implement. These control signals are generated using the signals received from the antenna and the desired grade map. This system has an increased coverage area, more accuracy and round-the-clock operability. The system could be used to carry out all the land-leveling operations viz. surveying, leveling and verifying.