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APPARATUS FOR SUPPLYING EITHER HOT OR WARM WATER IN A VENDING MACHINE

  • US 3,787,659 A
  • Filed: 01/12/1972
  • Issued: 01/22/1974
  • Est. Priority Date: 08/17/1971
  • Status: Expired due to Term
First Claim
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1. In a machine for vending warm drinks selectively (a) by extracting extractable ingredients and (b) by dissolving soluble ingredients, an apparatus for supplying both hot water for extracting and warm water for dissolving, comprising a tank for holding a supply of warm water, a substantially smaller second tank for holding a supply of hot water which is separated from the first tank by a heat-conducting wall, an electrical heating coil in the second tank which is provided with a thermostatic control responsive to the water temperature in the second tank for maintaining said water temperature slightly below the boiling point, means for maintaining the transfer of heat from the second tank to the first tank at rate such as to maintain a water temperature of 70*-75* C in the first tank when the water temperature in the second tank is slightly below the boiling point, a valve-controlled outlet for withdrawing hot water from the second tank for extracting, and a separate valve-controlled outlet for withdrawing warm watEr from the first tank for dissolving.

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