04590348 is referenced by 12 patents and cites 14 patents.

A system for controlling microwave heaters in order to efficiently heat frozen ground. The heaters are energized and deenergized by a control unit in response to the temperature sensed a selected distance from a heater. The control unit also deenergizes the heater in response to a temperature sensed in the vicinity of the applicators of the heater in order to protect the heaters from overheating.

Title
System for heating materials with electromagnetic waves
Application Number
6/632515
Publication Number
4590348
Application Date
July 19, 1984
Publication Date
May 20, 1986
Inventor
Wallace R Lahti
Pefferlaw
CA
Howard R Lahti
Mattawa
CA
Agent
Jones Tullar & Cooper
Assignee
Canadian Patents and Development
CA
IPC
E21C 37/16
H05B 6/80
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