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
Fuser member
Methods and devices for creating, compressing and searching binary tree
Method and system for leveraging the power of one's social-network in an online marketplace
Lid for a container
Software execution management apparatus, method, and computer-readable medium thereof
Multistable electromagnetic actuators
Supply voltage generating circuit and semiconductor device having the same
  Randomly Featured Patents
Surface treatment of shape memory alloys
Withdrawal of priming fluid from extracorporeal circuit of hemodialysis machines or the like
Polyurethane-polyacrylate hybrid dispersions containing allophanate groups
Method and apparatus for computer controlled rare cell, including fetal cell, based diagnosis
Industrial use robot with horizontal multiple articulated arms with means to minimize or eliminate interference among driving portions
Image forming apparatus and image forming method
Polyol ester insecticides and method of synthesis
Process for the manufacture of gate valves for closure devices having a pouring nozzle and similar objects
Diagnostic and therapeutic applications of soluble LHCGR protein