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DRINKING RECEPTACLE

  • US 3,766,975 A
  • Filed: 09/17/1970
  • Issued: 10/23/1973
  • Est. Priority Date: 09/17/1970
  • Status: Expired due to Term
First Claim
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1. A drinking receptacle comprising, in combination, a rigid outer shell of insulating material having an annular upper edge, a rigid inner container of heat-conductive material having an annular upper edge, means for interconnecting said inner container and said outer shell upper edges together in intersecting sealing engagement to support said inner container within said outer shell in spaced relationship therewith for providing an inner cavity therebetween, said interconnecting means being arranged to form an annular lip for accommodating the mouth of a drinker to permit drinking of a potable liquid from said inner container and a heat transfer medium in said cavity in heat transfer relationship with said inner container for the absorption of heat from potable material introduced into said inner container, said heat transfer material being of a selected quantity to reduce the temperature of said potable material to a level whereby said outer shell maintains the temperature of said potable material at said selected level.

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