Resources Contact Us Home
Vending apparatus and method having improved reliability

Image Number 9 for United States Patent #5586684.

A vending apparatus of the type having drop shelves, wherein the shelves are retained in an upright position by a solenoid, and wherein, when so positioned, the solenoid forms a series electrical circuit with the shelf, such that the position of the shelf can be tested by testing the integrity of this series electrical circuit. The vending apparatus can be equipped with an acoustic input, such that upon receiving a particular acoustic input signal, the machine will automatically test the position of the shelves by testing the shelf/solenoid circuit, and in this way, an inventory of the contents of the vending machine can be performed.

  Recently Added Patents
Sensor packages and method of packaging dies of differing sizes
Method and apparatus for closed-loop control of anti-tachyarrhythmia pacing using hemodynamic sensor
Charged-particle beam lens
Event handling in an integrated execution environment
For a given cell in a spreadsheet, evaluating an unlimited number of conditional formatting rules and applying multiple corresponding formats to the cell
Apparatus, method and program for image receipt, processing, conversion, and delivery to and from a plurality of external apparatuses
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
  Randomly Featured Patents
Image forming apparatus and device for driving a contact type charging member
Apparatus and method for determining respiratory mechanics of a patient and for controlling a ventilator based thereon
High frequency coil for an NMR apparatus
Bio-based coating
Compactor wheel tip
Apparatus for controlling cargo handling position
Ink jet nozzle assembly including a fluidic seal
Fluid filtration, recirculation and delivery apparatus and method
Drainer tray
Test pattern generator and test pattern generation method for onboard memory devices