# US 12,000,975 B2 · Borehole inspecting and testing device and method of using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,000,975 B2 - Document ID: US12000975B2 - Status: Granted - Kind: B2 - Application number: 17/725,798 - Filed: 2022-04-21 - Published: 2022-08-04 - Granted: 2024-06-04 - Earliest claimed: 2013-12-05 - Assignees: Pile Dynamics, Inc. - Applicants: Pile Dynamics, Inc. - Inventors: George R. Piscsalko; Dean A. Cotton; Richard E. Berris, Jr.; Tyler A Piedimonte - Web page: https://patentgrep.com/patent/US12000975B2 ## CPC - G01V 11/002: {Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant (means for transmitting well survey signals E21B47/12; signal transmission systems in general G08C; transmission in general H04B)} - E02D 1/02: before construction work - E21B 47/00: Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B21/08) - E21B 47/0025: {generating an image of the borehole wall using down-hole measurements, e.g. acoustic or electric} - E21B 47/085: using radiant means, e.g. acoustic, radioactive or electromagnetic - G01V 9/00: Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 - G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02) - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract An inspection system to measure the condition of at least a wall of a ground opening, the inspection system having a head unit for lowering into a borehole during a data collection phase wherein at least one set of test data is collected concerning one or more physical characteristics of the borehole during the data collection phase, the head unit having an internal measurement system and a sensor arrangement with a plurality of sensors facing radially outwardly of a head axis that is generally parallel to at least a portion of a borehole axis, the plurality of sensors allowing the head unit to be moved during the data collection phase without rotation about the head axis, the plurality of sensors at least partially producing the at least one set of test data collected during the data collection phase. ## Claims ### Claim 1 An inspection system to measure the condition of a side wall of an opening extending along an opening axis extending into the ground; the inspection system comprising a head unit configured to move along an associated opening axis of an associated ground opening; the head unit being movable along the associated opening axis during a data collection phase, the data collection phase including at least one of a lowering phase wherein the head unit is moving in the associated borehole toward an associated bottom extent of the associated ground opening and a raising phase wherein the head unit is moving in the associated ground opening away from the associated bottom extent of the ground opening; at least one set of test data being collected concerning one or more physical characteristics of the associated side wall of the associated ground opening during the data collection phase, the head unit comprising a sensor arrangement that includes a plurality of test data sensors facing radially outwardly of and circumferentially spaced about a head axis that is generally parallel to at least a portion of the associated opening axis, the plurality of test data sensors of the sensor arrangement allowing the head unit to be moving during the data collection phase without rotation of the head unit or the plurality of test data sensors about the head axis, the plurality of test data sensors at least partially producing the at least one set of test data collected during the data collection phase while the head unit is moving; the head unit including at least one of a calibration sensor and a control sensor; the at least one calibration sensor and control sensor including at least one of a depth sensor, a head verticality sensor, a density sensor, a wave speed sensor for the plurality of sensors, a liquid sensor and a pressure sensor. ### Claim 2 (depends on 1) The inspection system of claim 1, wherein the at least one calibration and control sensor includes at least one of an accelerometer, a gyroscope, an ultrasonic sensor and an altimeter. ### Claim 3 (depends on 1) The inspection system of claim 1, wherein the head unit includes a wireless operating system wherein the head unit operates wirelessly during the data collection phase. ### Claim 4 (depends on 3) The inspection system of claim 3, wherein the wireless operating system includes preprogramed operation modes for movement of the head unit and data collection during the data collection phase. ### Claim 5 (depends on 1) The inspection system of claim 1, wherein the plurality of test data sensors is a first plurality of test data sensors and the head unit further includes a second plurality of test data sensors and a third plurality of test data sensors; the second plurality of test data sensors faces axially relative to the head axis; the third plurality of test data sensors faces radially relative to the head axis. ### Claim 6 (depends on 5) The inspection system of claim 5, wherein at least one of the second plurality of test data sensors faces axially downwardly toward the associated bottom extent of the associated ground opening. ### Claim 7 (depends on 1) The inspection system of claim 1, wherein the head includes an internal measurement system with an operating system, the internal measurement system having an internal power supply and a data store, the data store providing at least one of commands for the operation of the head unit during the data collection phase and data storage for the storage of the at least one set of test data during the data collection phase. ### Claim 8 (depends on 7) The inspection system of claim 7, wherein the operating system at least in part controls the head unit movement along the associated opening axis during the data collection phase. ### Claim 9 (depends on 1) The inspection system of claim 1, wherein the plurality of test data sensors is a first plurality of test data sensors and the head unit further includes a second plurality of test data sensors. ### Claim 10 (depends on 9) The inspection system of claim 9, wherein the second plurality of test data sensors faces axially relative to the head axis. ### Claim 11 (depends on 9) The inspection system of claim 9, wherein at least one of the second plurality of test data sensors faces axially downwardly toward the associated bottom extent of the associated ground opening. ### Claim 12 (depends on 9) The inspection system of claim 9, wherein the second plurality of test data sensors faces radially relative to the head axis. ### Claim 13 (depends on 1) The inspection system of claim 1 further including a surface unit outside of the associated ground opening that is separate from the head unit and a wireless communication system between the head unit and the surface unit allowing wireless communication between the surface unit and the head unit during the data collection phase. ### Claim 14 (depends on 13) The inspection system of claim 13, wherein the surface unit at least in part controls the head unit movement along the associated opening axis during the data collection phase. ### Claim 15 (depends on 13) The inspection system of claim 13, wherein the surface unit includes an off site computing system. ### Claim 16 (depends on 13) The inspection system of claim 13, wherein the surface unit includes an off-site control and/or display unit.