ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,291, issued on May 5, was assigned to Underground Magnetics Inc. (Johnston, Iowa).
"Pitch data processing system for horizontal directional drilling" was invented by Yuriy Khapochkin (Johnston, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pitch data processing system of a horizontal directional drilling system can include a sonde, an offset and range calibration unit, a pitch speed limiter, and a low pass filter. The sonde can include an accelerometer configured to measure and output a raw pitch signal. The offset and range calibration unit can receive and process the raw pitch signal and output a calibrated pitch signal. The pitch speed limi...