Inventor
GUNSAULIS FLOYD R
US29 patents
⚠️ This page may combine multiple inventors who share the name “GUNSAULIS FLOYD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHARLES MACHINE WORKS
25 patentsUS7389831B2Jun 24, 2008
Dual-member auger boring system
CHARLES MACHINE WORKS56 citations95
US7510029B2Mar 31, 2009
System for tracking and maintaining an on-grade horizontal borehole
CHARLES MACHINE WORKS20 citations92
US7216724B2May 15, 2007
Coupling for dual member pipe
CHARLES MACHINE WORKS46 citations92
US6250404B1Jun 26, 2001
Directional boring head
CHARLES MACHINE WORKS22 citations92
US7624816B2Dec 1, 2009
Configurable beacon and method
CHARLES MACHINE WORKS45 citations91
US7331409B2Feb 19, 2008
Configurable beacon and method
CHARLES MACHINE WORKS37 citations91
US9206851B2Dec 8, 2015
Horizontal directional drill pipe drive connection with locking feature
CHARLES MACHINE WORKS34 citations90
US6311790B1Nov 6, 2001
Removable boring head with tapered shank connector
CHARLES MACHINE WORKS32 citations90
US7663373B1Feb 16, 2010
Determining beacon location using magnetic field ratios
CHARLES MACHINE WORKS28 citations89
US7528946B2May 5, 2009
System for detecting deflection of a boring tool
CHARLES MACHINE WORKS11 citations84
US7353889B1Apr 8, 2008
Rotary driven pipe-bursting tool
CHARLES MACHINE WORKS11 citations84
US9834995B2Dec 5, 2017
Horizontal directional drill pipe drive connection with locking feature
CHARLES MACHINE WORKS4 citations83
US7896107B2Mar 1, 2011
System for tracking and maintaining on on-grade horizontal borehole
CHARLES MACHINE WORKS8 citations83
US7654340B2Feb 2, 2010
Directional reaming system
CHARLES MACHINE WORKS13 citations83
US7195079B2Mar 27, 2007
Directional reaming system
CHARLES MACHINE WORKS13 citations83
US11225840B2Jan 18, 2022
Horizontal directional drill string having dual fluid paths
CHARLES MACHINE WORKS3 citations73
US9828805B2Nov 28, 2017
Reamer with replaceable cutters
CHARLES MACHINE WORKS3 citations73
US12370513B2Jul 29, 2025
Batch processing of material collected by a vacuum excavation unit
CHARLES MACHINE WORKS0 citations62
US12000216B2Jun 4, 2024
Horizontal directional drill string having dual fluid paths
CHARLES MACHINE WORKS0 citations62
US11613947B2Mar 28, 2023
Drill pipe with internal flow check valve
CHARLES MACHINE WORKS0 citations62
US11401750B2Aug 2, 2022
Telemetry pipe system
CHARLES MACHINE WORKS0 citations62
US11530605B2Dec 20, 2022
Horizontal directional drilling crossbore detector
CHARLES MACHINE WORKS0 citations59
US10619420B2Apr 14, 2020
Reamer with replaceable rolling cutters
CHARLES MACHINE WORKS0 citations52
US9714544B2Jul 25, 2017
Reamer with replaceable rolling cutters
CHARLES MACHINE WORKS0 citations52
US10851599B2Dec 1, 2020
Horizontal directional drill pipe drive connection with locking feature
CHARLES MACHINE WORKS0 citations51