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Vendor control system

  • US 4,478,353 A
  • Filed: 02/26/1982
  • Issued: 10/23/1984
  • Est. Priority Date: 02/26/1982
  • Status: Expired due to Fees
First Claim
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1. In a vend control system having means to accept and accumulate amounts of credit entered by a customer, a plurality of vend delivery means each having a product associated therewith and being selectively energizable to vend such product, and selection means actuatable by the customer to select a particular product from among the products that are available to be vended, the improvement comprising common circuit means associated with all of the vend delivery means and the selection means, a plurality of means each associated with a respective vend delivery means and operable when the supply of products to be vended under control of the respective vend delivery means becomes exhausted during a particular vend cycle to prevent the energizing during future vend cycles of said respective vend delivery means but not of others of said vend delivery means, and other means to maintain the selected vend delivery means energized for a full cycle of operation even if during a particular vend cycle the one of said plurality of means associated with the respective selected vend delivery means operable to prevent the future energizing of the selected vend delivery means operates thereby indicating that the supply of the product associated with such selected vend delivery means has become exhausted, said other means including a plurality of switch means each associated with a respective vend delivery means and operating under control thereof to cycle between two conditions during a complete operating cycle of the energized vend delivery means, means in said common circuit means operatively connected to all of said switch means and responsive to the operation of any of said switch means to effect maintenance of energization of the energized vend delivery means for a full cycle of its operation.

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