SLOPE INDICATOR COMPANY, THE

IDA

MICROPROCESSOR BASED DATA ACQUISITION AND TRANSMISSION NETWORK FOR STRUCTURAL MONITORING AND TESTING NAMELY, STRAIN GAGES, STRESS TRANSDUCERS, PRESSURE TRANSDUCERS, EXTENSOMETERS, INCLINOMETERS, DATA CONVERTERS AND INTERRELATED LINE DRIVERS AND RECEIVERS ASSEMBLED TOGETHER IN A NETWORK;

SINCO

STRUCTURAL GEOPHYSICAL INSTRUMENTS, NAMELY INCLINOMETERS, TILTMETERS, PLUMB-LINES, SPIRAL SENSORS, PORE-PRESSURE TRANSDUCERS, PORTABLE PNEUMATIC INDICATORS, ELECTRICAL PIEZOMETER PRESSURE SENSORS, WATER LEVEL INDICATORS, WATER SAMPLERS, BORE HOLE EXTENSOMETERS, STRAIN METERS, TAPE EXTENSOMETERS, SETTLEMENT PROBES; AND VIBRATION MONITORING INSTRUMENTS, NAMELY, GROUND VIBRATION SENSORS, LOAD CELLS, STRAIN GAUGES, VIBRATING WIRE STRAIN GAUGES;

SINCO

STRUCTURAL GEOPHYSICAL INSTRUMENTS, NAMELY, INCLINOMETERS, TILTMETERS, PLUMB-LINES, SPIRAL SENSORS, PORE-PRESSURE TRANSDUCERS, PORTABLE PNEUMATIC INDICATORS, ELECTRICAL PIEZOMETER PRESSURE SENSORS, WATER LEVEL INDICATORS, WATER SAMPLERS, BORE HOLE EXTENSOMETERS, STRAIN METERS, TAPE EXTENSOMETERS, AND SETTLEMENT PROBES; AND VIBRATION MONITORING INSTRUMENTS, NAMELY, GROUND VIBRATION SENSORS, LOAD CELLS, STRAIN GAUGES, AND VIBRATING WIRE STRAIN GAUGES;

TERRAMETRICS

IN SITU MEASUREMENT OF THE STATIC AND DYNAMIC BEHAVIOR OF SOIL AND ROCK, AS AT FOUNDATIONS, ABUTMENTS, TUNNEL BORES, AND IN EXCAVATIONS;

VIBSTRIP

strain gages, pressure measurement gages, geological exploration apparatus; namely, tiltmeters, inclinometers, pore pressure measurement devices, extensometers, and readout devices used therewith;VIB STRIP;

VS

geotechnical instruments; namely, piezometers, force transducers, and concrete strain gauges and readout devices associated therewith;