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
Spectral sensor for checking documents of value
Cryptographically generated addresses using backward key chain for secure route optimization in mobile internet protocol
Vehicle location information-based abnormal driving determination and warning system
Permanent magnet axial field zeeman slower
Anti-fake battery pack and identification system thereof
Magnesium metal-air battery
Measurement protocol for a medical technology apparatus
  Randomly Featured Patents
Aluminum nitride sintered body and manufacturing method thereof
Gainboost biasing circuit for low voltage operational amplifier design
Devices, systems, and methods for reinforcing a traffic control assembly
Method and device for making weft of weaving for wigs
End structures for filter canisters
Process for producing sulfones
Voltage stabilization device and semiconductor device including the same, and voltage generation method
Recessed light fixture with a movable junction box
Method and apparatus for processing an incoming telephone call signal which may include a data message
Poker chip