Inventor

MCEACHERN ALEXANDER

US35 patents

⚠️ This page may combine multiple inventors who share the name “MCEACHERN ALEXANDER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MCEACHERN ALEXANDER

BASIC MEASURING INSTR

Harmonic-adjusted power factor meter

Harmonic measuring instrument for AC power systems with a time-based threshold means

Harmonic measuring instrument for AC power systems with latched indicator means

Harmonic measuring instrument for AC power systems with poly-phase threshold means

Apparatus for digital calibration of detachable transducers

Method and apparatus for calibrating transducer/amplifier systems

Harmonic-adjusted watt-hour meter

Harmonic-adjusted watt-hour meter

Harmonic-adjusted power factor meter

Harmonic-adjusted watt-hour meter

Harmonic-adjusted power factor meter

High-pass filter for enhancing the resolution of AC power line harmonic measurements

Waveform disturbance detection apparatus and method

Coasting power supply for AC power system waveform measuring instrument

Power line impulse measurement system

Impulse direction detector for ac power systems

Method and apparatus for disabling all operations of an electronic instrument except for an automatic test procedure

BASIC MEASURING INSTR INC

Harmonic-adjusted power factor meter

Waveform library for characterizing an AC power line spectrum

Electronic remote data recorder with facsimile output for utility AC power systems

Method and apparatus for storing an increasing number of sequential real-time samples in a fixed amount of memory

MCEACHERN ALEXANDER

Harmonics measurement instrument with in-situ calibration

Method and apparatus for triggered capture of voltage phase angle data on an alternating current power grid

Method and apparatus for detecting cyber attacks on an alternating current power grid

System and method for measuring a parameter of an alternating current power grid while minimizing the likelihood of lightning damage in a measuring system

(unassigned)

Charger for hand-held rechargeable electric apparatus with reduced magnetic field

Charger for hand-held rechargeable electric apparatus with switch for reduced magnetic field

Method and apparatus for storing electric power measurements

INFRASTRUCTURE INSTR INC

Electric power measuring instrument with speech synthesis feature

Instrument for detecting hidden structural damage in multi-story buildings

Dual-axis force feedback accelerometer

POWER STANDARDS LAB

Sag generator with switch-mode impedance

Sag generator with plurality of switch technologies

POWER STANDARD LAB INC

Method and apparatus for measuring the stability of an alternating current distribution grid

POWER STANDARDS LAB INC

Method and apparatus for precision phasor measurements through a medium-voltage distribution transformer