Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
System, method, and computer readable medium for a force-based wheelchair joystick
Plasma doping method and plasma doping apparatus
Control of an electric machine
Bioelectric battery for implantable device applications
Sub-LUN input/output profiling for SSD devices
Method and apparatus for allocating and obtaining IP address
System and method for improving text input in a shorthand-on-keyboard interface
  Randomly Featured Patents
Electrochemical cell
Video movie camera capable of still photography using a stroboscopic flash
Ion exchange treatment of grape wines
Hydroxamic acid derivative
Method for determining gas hold-up
Electromagnet assembly for electromagnetic apparatus
Endpoint detection device for realizing real-time control of plasma reactor, plasma reactor with endpoint detection device, and endpoint detection method
Method and apparatus for manipulating outlines in improving digital typeface on raster output devices
Hybrid electro luminescence panel and driving method thereof
Phase-locked loop fast lock circuit and method