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Residential fuel oil tank level reporting device

  • US 5,619,560 A
  • Filed: 06/05/1995
  • Issued: 04/08/1997
  • Est. Priority Date: 06/05/1995
  • Status: Expired due to Term
First Claim
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1. A remote level sensor for a residential fuel oil tank having a gauge with a permanent magnet which changes positions along a first axis with changes in the level of oil in the tank, the sensor comprising:

  • a housing;

    a reed switch located in the housing which switches under the influence of a magnetic field from the magnet when the magnet is within a predetermined distance from the switch;

    a controller connected to a telephone line for seizing the telephone line, dialing a telephone number and transmitting and receiving information over the telephone line, the controller detecting said switching of the reed switch and responding by initiating a telephone call to a monitoring location, and transmitting information to the monitoring location indicative of the switching of the reed switch;

    a connector by which the housing is connected to the gauge, the connector being attached to a predetermined portion of the housing and receiving a top portion of the gauge such that the connector, when receiving said top portion of the gauge, maintains the housing in a predetermined position relative to the gauge and prevents movement of the housing in a first direction parallel to the first axis, such that location of the housing in the predetermined position is achieved by orienting the connector to receive the top portion, and moving the housing in the first direction until further movement is prevented by the connector.

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