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Induction fluid heater

  • US 4,602,140 A
  • Filed: 11/01/1984
  • Issued: 07/22/1986
  • Est. Priority Date: 11/01/1984
  • Status: Expired due to Fees
First Claim
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1. An inductive electric heater for heating a fluid comprising a magnetic core, a primary winding wound on the core adapted to be connected to an alternating voltage source of any given frequency, a tubular secondary winding coupled magnetically to the primary winding by means of the magnetic core, the magnetic core having a plurality of legs on which the primary winding is wound, the secondary winding including a plurality of straight tubes extending between the legs and laterally of the legs outside the core, the tubes extending parallel to the primary winding, fluid reservoirs to which the ends of at least a portion of the tubes are connected, the reservoirs and tubes being non-magnetic and electrically conductive, and means directing fluid into one reservoir and out the other reservoir through the tubes.

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