Beverage extracting apparatus for vending machines

Foods and beverages: apparatus – Beverage – Infusors

Patent

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Details

99302R, A47J 3132

Patent

active

052994910

ABSTRACT:
A beverage extracting apparatus for vending machines includes a cylinder for storing a liquid mixture of water and raw material of a beverage, a valve opening and closing the inflow port of the cylinder, a rolled filter paper covering the bottom opening of the cylinder, a filter support vertically moved to open and close the bottom opening of the cylinder via the filter paper, and an air pump supplying pressurized air into the cylinder to forcibly filtrate the liquid mixture stored in the cylinder via the filter paper. The rolled filter paper is advanced at an appropriate interval onto the filter support by the cooperative rotational motion of a pair of first driving rollers and a pair of corresponding idler rollers. Each of the pair of idler rollers is rotatably supported by a separate arm plate which pivot downwardly to bring the idler rollers into or out of contact with the first rollers. The downward pivoting motion is provided by the restoring force of first and second springs which are disposed on each arm plate so as to cause the arm plates to pivot independently.

REFERENCES:
patent: 3213777 (1965-10-01), Heier
patent: 4506596 (1985-03-01), Shigenobu et al.
patent: 4791859 (1988-12-01), King
patent: 4984511 (1991-01-01), Sekiguchi
patent: 4998462 (1991-03-01), Sekiguchi
patent: 5127317 (1992-07-01), Takayanagi

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