Abstract: The circuit includes a switch array for setting two conditions, one for defining the length of the vend period and the other for defining the coinage necessary to initiate the vend period. A binary counter is coupled by the switch array to a decoder circuit, and the binary counter is first counted incrementally in response to coinage insertion until the correct coinage has been received at which time the counter is enabled to continue counting through a timing cycle defining the vend period. At the end of the vend period the circuit is reset for future usage.

Abstract: The drive circuit operates a shaded pole motor having in the disclosed embodiment three windings of turns N, N/2 and N/2. The control is basically two-speed control with the lower speed operation being adjustable by means of the drive circuit and with the high speed operation being directly from the AC line. The drive circuit includes a clock, frequency adjustment means, power inverters and unilateral means for limiting power consumption.

Abstract: A reconstituted food dispenser for such foods as cereal, mashed potatoes and the like wherein a housing is provided having a platform on which is supported a container of the food in a reconstitutable form. The container has a discharge opening on which a metal block is mounted, and the metal block in turn has a passage which communicates with the discharge opening. A second passage is also provided in the block, which receives hot air from a tube in the housing. A funnel mounted on the housing immediately below the discharge end of the passage in the block receives hot water from a water heater in the housing and receives the reconstitutable food from the container, and the two are mixed and discharged from the funnel. The food may be in the form of flakes, granules, powder, etc.

Abstract: A coin-operated liquid dispensing machine having a vending control mechanism which may be conveniently altered to accept a different coin or series of coins to reflect different vending prices that are to be charged. In the disclosed arrangement vending prices of 5.cent., 10.cent., 15.cent., 20.cent., 25.cent. and 30.cent. are selectable. The control mechanism includes a timer motor for driving three cams each having electrical circuitry associated therewith including cam contact switches. The first cam is a stepping cam, the second an override cam and the third cam controls a dispensing gear motor. The electrical circuitry also includes 5.cent. and 10.cent. switches and associated relays, a relay by-pass switch, and manually operated blocking structure associated with each coin slot (5.cent. and 10.cent. slot).

Abstract: A dispenser for high density liquids such as barium sulphate comprising a housing with a bowl seated on the housing and containing the liquid. Refrigeration coils in the bowl chill the liquid, and a variable speed paddle type pump also in the bowl mixes and circulates the liquid about the refrigeration coils and maintains the mixture in suspension. A dispensing valve assembly includes a body having a passage which extends axially through it and a vent tube that extends upwardly from the body. The vent tube and body prevent build up of the liquid about the valve which otherwise would dry and cause valve blockage.

Abstract: A coffee machine for dispensing automatically individual cup portions and pot size portions of coffee, as well as dispensing continuous flow of coffee and continuous flow of hot water comprising a housing with a hot water tank, a freeze-dried coffee concentrate hopper, and a mixing assembly for receiving the hot water and concentrate. A heating device is associated with the discharge passage from the hopper to prevent caking of the particles at the outlet, which would interfere with the proper metering of the coffee concentrate.