Patents Assigned to J. R. Microwave, Inc.
  • Patent number: 4889179
    Abstract: An apparatus for interconnecting a four wire control such as a thermostat and a four wire system such as a heating/cooling system with two wires. An encoder encodes signals provided by the thermostat so that four encoded signals may be transmitted over a two wire system. The apparatus includes inductors which are selectively connected to the thermostat thereby providing varying signals which can be delivered over the two wires between the thermostat and the system.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: December 26, 1989
    Assignee: J. R. Microwave, Inc.
    Inventor: Joseph T. Merenda
  • Patent number: 4796017
    Abstract: A resistive water probe is used in combination with a Christmas tree stand to detect a low water level. A low water situation activates lights in a Christmas tree ornament.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: January 3, 1989
    Assignee: J. R. Microwave, Inc.
    Inventor: Joseph T. Merenda