Apparatus and method for pumping controlled amount

专利名称：Apparatus and method for pumping

controlled amounts of flowable materialfrom a flexible bag

发明人：Kenyon M. King,Barry J. Brummett,Gregory

D. King,Douglas S. Hutchings

申请号：US08/342347申请日：19941118公开号：US05553740A公开日：19960910

摘要：A device for pumping controlled amounts of flowable materials having a widerange of viscosities, such as condiments for food, from a bag having flexible walls. Thedevice is comprised of a container to hold the flexible bag, a piston to drive a controlledmotion mechanism to compress the bag, a sealing mechanism to seal the bag to

constrain flow through a wide range of nozzles, a cutting device to pierce the bag when aseal has been obtained, an exit nozzle(s) to discharge the fluid and to maintain thetemperature of the exit nozzle(s). Multiple connections may be made to multiple

dispensing points. Dispensing of exact quantities of the flowable material is accomplishedby controlling the position of the piston by a stepping servomechanism to displace anexact volume of the flowable material at the exit nozzle. Nozzle temperature is

equalized to that of the material in the container by provision of air passages through thenozzle. An alternate embodiment uses a pressure feedback device to control the pistonmechanism, this approach applies constant pressure to the flowable material and is usedwhen a variable amount of product is required.

申请人：RESTAURANT AUTOMATION DEVELOPMENT CO.

代理人：Leo R. Carroll

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