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Dispenser with low supply indicator

  • US 3,351,238 A
  • Filed: 04/29/1966
  • Issued: 11/07/1967
  • Est. Priority Date: 04/29/1966
  • Status: Expired due to Term
First Claim
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1. IN AN IN-PLACE TREATING APPARATUS OF A GAS CLEANER WHEREIN THE TREATING APPARATUS INCLUDES TREATING MANIFOLD MEANS, A CONTAINER FOR HOLDING A SUPPLY OF TREATING LIQUID, LIQUID CONDUIT MEANS CONNECTING THE CONTAINER TO THE MANIFOLD MEANS, PUMP MEANS IN SAID CONDUIT MEANS OPERABLE TO PUMP TREATING LIQUID FROM THE CONTAINER TO THE MANIFOLD MEANS, AND CONTROL MEANS FOR THE TREATING APPARATUS OPERABLE TO SEQUENCE THE APPARATUS THROUGH A TREATING CYCLE HAVING ONLY PORTIONS THEREOF DURING WHICH THE PUMP MEANS IS OPERATED, THE INPROVEMENT COMPRISING:

  • SAID CONDUIT MEANS INCLUDING A PORTION HAVING AN OPENING INTO SAID CONTAINER AT A LEVEL THEREIN WHICH IS NORMALLY BENEATH THE SURFACE OF THE TREATING LIQUID THEREIN;

    PRESSURE RESPONSIVE MEANS CONNECTED TO SAID CONDUIT MEANS AND OPERABLE BY PRESSURE THEREIN BETWEEN SAID OPENING AND SAID PUMP MEANS;

    OUTPUT MEANS OPERAWBLE BY SAID PRESSURE RESPONSIVE MEANS UPON THE EXISTENCE OF PREDETERMINED PRESSURE CONDITIONS SENSED THEREBY;

    AND MEANS CONTROLLED BY SAID CONTROL MEANS, NORMALLY PRECLUDING OPERATION OF SAID OUTPUT

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