Inventor
FERGUSON HUGO S
US17 patents
⚠️ This page may combine multiple inventors who share the name “FERGUSON HUGO S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DUFFERS SCIENT INC
8 patentsUS5092179AMar 3, 1992
Dynamic material testing system having independent control over specimen deformation and strain rate and a method for use therein
DUFFERS SCIENT INC72 citations95
US4734555AMar 29, 1988
Method and apparatus for measuring and controlling indentation in resistance welding
DUFFERS SCIENT INC61 citations95
US5199304AApr 6, 1993
Apparatus for optically measuring specimen deformation during material testing
DUFFERS SCIENT INC32 citations92
US5195378AMar 23, 1993
Dynamic thermal-mechanical material testing system utilizing a balanced magnetic field
DUFFERS SCIENT INC35 citations92
US4631697ADec 23, 1986
Signal controlled waveform recorder
DUFFERS SCIENT INC8 citations73
US4509000AApr 2, 1985
Bumpless feedback switching apparatus for use in a servo system
DUFFERS SCIENT INC12 citations73
US4721906AJan 26, 1988
One step RMS system
DUFFERS SCIENT INC18 citations66
USRE34843EJan 31, 1995
Signal controlled waveform recorder
DUFFERS SCIENT INC2 citations51
DYNAMIC SYSTEMS INT INC
4 patentsUS5315085AMay 24, 1994
Oven that exhibits both self-resistive and self-inductive heating
DYNAMIC SYSTEMS INT INC23 citations92
US6422090B1Jul 23, 2002
Apparatus for a thermodynamic material testing system that produces very large strains in crystalline metallic specimens and accompanying methods for use therein
DYNAMIC SYSTEMS INT INC20 citations83
US5481086AJan 2, 1996
High temperature deformable crucible for use with self-resistively heated specimens
DYNAMIC SYSTEMS INT INC14 citations73
US6742440B2Jun 1, 2004
Servo-controlled integral stop for use with a servo-controlled hydraulic piston
DYNAMIC SYSTEMS INT INC2 citations62