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Liquid supply reservoir

  • US 4,714,176 A
  • Filed: 05/11/1987
  • Issued: 12/22/1987
  • Est. Priority Date: 01/24/1985
  • Status: Expired due to Term
First Claim
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1. In a liquid-supply reservoir of a liquid-using machine having a closable opening at the top of the reservoir in which are detachably secured both a pipe extending to near the base of the reservoir and a liquid-level sensing device forming a unit with the pipe, which pipe has an open end outside the reservoir through which a flexible conduit having one end connected to the liquid-using machine can be passed such that the other end is close to the base of the reservoir, the improvement wherein a part of the pipe has a recess formed on one side of an outside wall of the pipe, the liquid-level sensing device comprises a sensor secured to the outside wall of the pipe near a termination of the recess such that the sensor within the recess fits completely therein and every part of the pipe and sensor unit fits in the closeable opening with a slight amount of play.

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