Heated dispensing apparatus

  • US 5,803,317 A
  • Filed: 07/22/1996
  • Issued: 09/08/1998
  • Est. Priority Date: 02/09/1996
  • Status: Expired due to Term
First Claim
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1. A dispenser for products which are to be dispensed at elevated temperature and wherein the product is contained in a flexible bag having an outlet with a flexible discharge tube extending therefrom, comprising:

  • (a) a receptacle having an outlet opening in the lower portion thereof for receiving said bag with the discharge tube extending through the outlet opening, said receptacle having substantially vertical side walls and sloped bottom wall, the sloped bottom wall terminating in the outlet opening;

    (b) a heating element for heating said sloped bottom wall adjacent said bag when received in the receptacle to a desired temperature range and maintaining the temperature of the product in that temperature range for a desired period of time, said vertical side walls and bottom wall being comprised of a heat conducting material and said heat being conducted through said sloped bottom wall to said side walls;

    (c) a pump being positioned to conductively receive heat from said vertical side walls and bottom wall of said receptacle, said pump further including(i) a housing being comprised of heat conducting material,(ii) a rotor supported in said housing for rotation about a longitudinal axis of said rotor and being comprised of a heat conducting material,(iii) a stator adjustably supported by said housing adjacent the rotor,(iv) an adjustment mechanism operatively connected to said stator for moving said stator relative to said rotor between a pumping position wherein the stator holds a portion of the discharge tube in fixed pumping position adjacent to the rotor and a loading position where in the discharge tube can be placed between the stator and rotor,(v) rotatable pinch rollers carried by said rotor and arranged to pinch the discharge tube when the discharge tube is held in pumping position, said pinch rollers moving along the portion of the discharge tube adjacent the rotor to thereby pump product through the discharge tube, and(vi) a control device for controllably rotating the rotor thereby delivering a predetermined amount of product; and

    (d) insulating material surrounding at least said vertical side walls and said sloped bottom wall said receptacle and said heating means.

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