Confectionary pumps
First Claim
1. A pump for confections comprising:
- a cylinder, a piston within said cylinder, driving means connected to said piston,a check valve assembly including a valve body, an inlet check valve, and an outlet check valve, one end of said valve body being tightly enclosed within an end of said cylinder,said valve body having an inlet passageway and an outlet passageway therethrough communicating respectively from outside said cylinder through said valve body and out respective openings in said one end thereof to space within said cylinder,said inlet check valve being a resilient duck-bill type having a tubular portion at one end thereof and a converging portion with an intermediate slit at the other end thereof, said tubular portion being fit tightly over said opening of said inlet passageway in said one end of said valve body,a perforated member as a partition within said cylinder extending from said tubular portion of said inlet check valve to said cylinder, said perforated member being spaced from said one end of said valve body to provide a mixing space therebetween, said outlet passageway having an opening through said one end of said valve body into said mixing space,said outlet check valve being positioned in said outlet passage to permit flow of fluid from said cylinder,an air passageway communicating from the atmosphere to space within said cylinder, and a check valve within said air passageway to check flow of fluid from said cylinder.
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Accused Products
Abstract
A piston pump for mixing air into a liquid confectionary mixture uses resilient, duck-bill shaped valves in special valve bodies to provide efficient operation, easy assembly and disassembly, and easy cleaning. In one embodiment, a duck-bill valve in a central outlet passageway of a valve body functions as an outlet check valve and has an integral resilient disk portion that fits over a face of the valve body to function as a check valve for a plurality of spaced inlet passageways. In another embodiment, a duck-bill valve within an end of a cylinder of a pump is placed over a central inlet passageway, and a spool with circumferentially spaced holes is positioned about the duck-bill valve to aid in mixing confectionary mixture and air. A separate duck-bill valve as a check valve is positioned in an outlet passageway. By using only duck-bill valves in this embodiment, fruit pulp and seeds in confectionary mixtures can be readily pumped and mixed simultaneously without plugging the valves.
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Citations
4 Claims
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1. A pump for confections comprising:
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a cylinder, a piston within said cylinder, driving means connected to said piston, a check valve assembly including a valve body, an inlet check valve, and an outlet check valve, one end of said valve body being tightly enclosed within an end of said cylinder, said valve body having an inlet passageway and an outlet passageway therethrough communicating respectively from outside said cylinder through said valve body and out respective openings in said one end thereof to space within said cylinder, said inlet check valve being a resilient duck-bill type having a tubular portion at one end thereof and a converging portion with an intermediate slit at the other end thereof, said tubular portion being fit tightly over said opening of said inlet passageway in said one end of said valve body, a perforated member as a partition within said cylinder extending from said tubular portion of said inlet check valve to said cylinder, said perforated member being spaced from said one end of said valve body to provide a mixing space therebetween, said outlet passageway having an opening through said one end of said valve body into said mixing space, said outlet check valve being positioned in said outlet passage to permit flow of fluid from said cylinder, an air passageway communicating from the atmosphere to space within said cylinder, and a check valve within said air passageway to check flow of fluid from said cylinder. - View Dependent Claims (2, 3, 4)
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Specification