Mechanical Time Delay Dispenser Using Suction Plunger

The patent replaces the traditional mechanical lever-twisting system with an electronic push-button interface. The push-button activates a solenoid or motor-driven mechanism that mechanically releases the product without requiring the user to apply torque or twist any component. This substitution of the user interface mechanism resolves the contradiction by eliminating the wrist-twisting action while maintaining product dispensing control through electronic actuation.

The patent introduces an intermediary mechanical release mechanism that is activated electronically. Instead of the user directly twisting a lever, the push-button system acts as an intermediary that translates a simple push action into the complex mechanical sequence required for product release. This intermediary mechanism mediates between the simple user input and the complex dispensing requirements, achieving both ADA compliance and reliable product control.

The patent replaces complex mechanical time delay systems with an electronic control system using a programmable microcontroller. The microcontroller manages the dispensing sequence, enforces time delays between product releases, and controls the solenoid/motor actuation electronically. This electronic substitution simplifies the overall device architecture by replacing intricate mechanical timing mechanisms with software-based time management, reducing mechanical complexity while maintaining theft prevention capabilities.

The patent uses programmable parameters in the microcontroller to control the time delay between product dispensing events. By changing software parameters rather than physical mechanical components, the system can easily adjust timing characteristics to prevent rapid product removal. This parametric control approach prevents theft while avoiding the complexity of mechanical timing devices with multiple springs, gears, and adjustable mechanisms.

The patent implements the electronic control system with the understanding that the vending machine operates in a continuously powered environment (plugged-in location). The microcontroller and solenoid/motor system remain in a low-power standby state, continuously monitoring for user input, and only consume significant power during brief dispensing operations. This continuous readiness approach prevents rapid emptying through software timing while accepting minimal operational power costs, as the machine is designed for locations with continuous power availability.

The patent accepts minimal power consumption as an acceptable cost given the brief duration of actual dispensing operations. The electronic control system consumes power only during short intervals when products are being dispensed, rather than requiring continuous high-power operation. This approach treats the power consumption as a short-lived, minimal cost that is acceptable in exchange for the reliability of preventing rapid emptying through electronic timing control.