Resources Contact Us Home
Solenoidal electric field lamp with reduced electromagnetic interference

Image Number 7 for United States Patent #4187445.

A solenoidal electric field lamp comprises a plurality of toroidal ferrite cores connected to a radio frequency energy source and disposed in an ionizable gas. The cores are so connected and oriented that circulating discharge currents passing through each core produce magnetic dipole fields which tend to cancel one another. Near and far field electromagnetic interference is thus reduced even when the lamp is operated at higher, more efficient frequencies. The cores are disposed in a variety of configurations.

  Recently Added Patents
Haworthia plant named `CAPETOWN`
Push mechanism for efficiently sending aggregated data items to client
Integrated circuit testing with power collapsed
Resistive memory element sensing using averaging
Accessing a base station
Pull through coronary sinus pacing lead
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
  Randomly Featured Patents
Locking system for a train car coupler
Output transistor driver diagnostic system
Backlight unit and liquid-crystal display device using the same
Outboard motor
Pharmaceutical compositions
Cutting tool having a wiper nose corner
Hydrogel implants with varying degrees of crosslinking
Release sheets and process of use
Plug connector
Method of measuring the turbidity of gas-containing liquid mediums with microorganisms