Bakery mix dispenser

Details Bakery mix dispenser Bakery mix dispenser

1994-09-16

1997-06-03

Shaver, Kevin P.

Dispensing

With discharge assistant

Motor operated

2223831, 417550, 4175551, B65B 304

Patent

active

056345747

ABSTRACT:
The present invention, in one form thereof, is an ergonomically useful dispensing assembly including a short dispensing tube adapted to be coupled at its inlet to a mixing bowl outlet. The outlet of the dispensing tube is coupled, for example, to a nozzle. A piston disposed within the tube has seals, such as O-rings which are sized to contact the interior surface of the dispensing tube along the length of the tube as the piston moves within the tube. The piston is constructed so that as the piston travels within the tube and from the tube inlet to the tube outlet, mix is forced through the outlet and mix is drawn into the tube through the tube inlet. As the piston travels from the tube outlet to the tube inlet, mix disposed within the tube travels through the piston. A check valve disposed adjacent the bowl outlet prevents backflow of mix from the tube into the bowl. The dispensing tube piston is driven by a dual piston-cylinder drive unit. The stroke length of the dual pistons is controllable. In operation, and with the inlet of the dispensing tube coupled to the outlet of a mixing bowl having mix disposed therein, a bowl cover or "follower" is inserted into the bowl on top of the mix. If the dispensing tube piston is initially disposed at the inlet end of the dispensing tube, the dual piston-cylinder drive unit forces the dispensing tube piston towards the tube outlet. As such piston is driven towards the dispensing end of the tube, any mix disposed between the piston and the tube outlet is forced out the nozzle. In addition, the suction or vacuum forces created by the forward movement of the piston relative to the dispensing tube pulls mix from the mixing bowl into the tube and between the dispensing tube inlet and the piston. When the pre-set stroke length of the dual pistons is reached, the drive unit reverses the direction of force applied to the dispensing tube piston. Mix disposed within the tube and between the tube inlet and the piston flows through the piston as the piston moves towards the inlet. Once the dispensing tube piston reaches the tube inlet, the piston reverses direction and once again forces mix through the tube outlet. The process is repeated until the desired amount of mix has been dispensed.

REFERENCES:
patent: 2687845 (1954-08-01), Young et al.
patent: 3699961 (1972-10-01), Szpur
patent: 3715061 (1973-02-01), Morine et al.
patent: 3743448 (1973-07-01), Dorn
patent: 3833156 (1974-09-01), Hough
patent: 4170253 (1979-10-01), McArthur
patent: 4228924 (1980-10-01), Gilbert
patent: 4651897 (1987-03-01), Johnson
patent: 5265773 (1993-11-01), Harada

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