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.:

US 7143844 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 05, 2006

Filed:

Jan. 18, 2005
Applicants:

Kevin L. Alft, Pella, IA (US);

Gregory W. Draper, Pella, IA (US);

Hans Kelpe, Pella, IA (US);

Inventors:

Kevin L. Alft, Pella, IA (US);

Gregory W. Draper, Pella, IA (US);

Hans Kelpe, Pella, IA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 25/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

An earth penetrating apparatus includes a cutting tool and a sensor housing. A radar unit, rate sensor unit, processor, and transmitter are provided in the sensor housing. An antenna arrangement is coupled to the radar unit and configured for transmitting and receiving electromagnetic signals in a relatively forward and/or lateral looking direction relative to a distal end of the cutting tool. The rate sensor unit may include one or both of a gyroscope and an accelerometer. The processor receives radar data from the radar unit indicative of subsurface strata and obstacles respectively located generally forward and/or lateral of the cutting tool, and receives displacement data from the rate sensor unit indicative of one or both of longitudinal and rotational displacement of the cutting tool. The transmitter is configured for transmitting one or both of the radar data and the displacement data to an aboveground location.


Find Patent Forward Citations

Alft, Kevin. (2006). Earth penetrating apparatus and method employing radar imaging and rate sensing (U.S. Patent No. 7143844). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7143844

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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