×

Liquid level controller

  • US 4,182,363 A
  • Filed: 11/24/1978
  • Issued: 01/08/1980
  • Est. Priority Date: 11/29/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. A liquid level control device comprisinga plurality of probes, including a high probe, a low probe and a ground probe;

  • solid state circuit means connected to said probes;

    housing means encapsulating said solid state circuit means, including parts of each of said probes, whereby each of said probes extend from said housing through a surrounding well formed in the housing;

    a cable extending from said housing, said cable including lead wires to connect the circuit to a power source, ground, and a means for controlling liquid level in a reservoir;

    the probes extend through the wells and from the housing to different distances from the housing, so that when the housing is arranged in a reservoir with the probes extending downwardly therefrom, the wells extend upwardly in the housing and the probes extend different distances therefrom into the reservoir, with the high probe extending the shortest distance therefrom, the low probe extending the next greatest distance therefrom and the ground probe extending the greatest distance from the housing; and

    the probes extend from a face of the housing parallel to one another and in sequential order according to length, so that when the housing is positioned with the probes extending parallel to liquid in the reservoir the high probe is above the low probe.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×