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Plastic bag dispensing apparatus for supermarkets incorporating devices for the registering of the purchased items

  • US 5,191,749 A
  • Filed: 10/25/1991
  • Issued: 03/09/1993
  • Est. Priority Date: 11/02/1990
  • Status: Expired due to Fees
First Claim
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1. Apparatus for self-serving scanning, registering and bagging a product purchased in a supermarket, the product having product information concerning the product imprinted on a label on packaging of the product, comprising:

  • a bag dispensing and opening unit (1) for dispensing and opening a single flexible bag from a continuous web of successively joined, preformed flexible bags;

    a reel supporting unit (3) for supporting the continuous web of flexible bags and for feeding the web to said bag dispensing and opening unit (1);

    a balance (2) for determining the actual weight of the product and for providing and output indicating the actual weight of the product; and

    a scanning and computing unit comprising a computer (7) and a scanner (6), said scanner (6) detecting the product information imprinted on the label on the packaging of the product and transmitting the product information to the computer (7) said computer (7) using the product information detected by said scanner (6) to determine a projected weight of the product, said computer (7) receiving the output from the balance (2) indicating actual weight of the product, said computer (7) comparing the actual weight of the product to the projected weight of the product, and said computer (7) providing an output indicating whether the actual weight of the product exeeds a predetermined deviation from the projected weight of the product.

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