Passive syrup delivery system
AssigneeCarrier Commerical Refrigeration, Inc.
InventorsJames J. Minard, Pete McNamee, Mark Bush
Life of this patent
Estimating the term…
Abstract
A pump transfers syrup through a supply line and through a valve assembly for mixing with ice cream in a mixing chamber to form a frozen dessert or milkshake. When the syrup flows through the passive valve, the pressure along the supply line increases. When syrup delivery is complete, a first timer is initiated to dispense ice cream into the mixing chamber for 0.4 seconds to flush out any remaining syrup. A second timer is also initiated when the syrup delivery is complete to reverse the pump for 0.2 seconds to remove the residual pressure in the supply line. By removing the residuals pressure, syrup in the supply line is prevented from oozing out of the valve apparatus and into the mixing chamber.
Claims22
A fluid dispending system comprising:
- a pump to pump a fluid through a supply line, and a pressure is applied to said supply line as said fluid flows through said supply line, said pump reversing after pumping said fluid to remove said pressure in said supply line;
- a valve assembly including a passive valve to dispense said fluid from said supply line;
- and
- a mixing chamber, and said fluid from said valve assembly flows into said mixing chamber.
A fluid dispending system comprising:
- a pump to pump a fluid through a supply line, and a pressure is applied to said supply line as said fluid flows through said supply line, said pump reversing after pumping of said fluid to remove said pressure in said supply line;
- a valve assembly including a passive valve to dispense said fluid from said supply line;
- a second fluid container that contains a second fluid;
- and
- a mixing chamber, and said fluid and said second fluid mix in said mixing chamber to form a mixture that is dispensed from said mixing chamber.
A fluid delivery system comprising:
- a fluid container to store a fluid;
- a supply line;
- a pump to pump said fluid from said fluid container and through said supply line, and a pressure is applied to said supply line as said fluid flows through said supply line, said pump reversing after pumping of said fluid to remove said pressure in said supply line;
- a valve assembly to dispense said fluid from said supply line, said valve assembly including a passive valve having a slot, and said fluid expands said slot to allow passage of said fluid through said passive valve;
- a second fluid container that contains a second fluid;
- and
- a mixing chamber, and said fluid and said second fluid mix in said mixing chamber to form a mixture dispensed from said mixing chamber.
A method of dispensing a fluid comprising the steps of:
- pumping a fluid through a supply line having a pressure;
- dispensing said fluid through a valve assembly;
- reversing the step of pumping to remove said pressure in said supply line;
- and
- mixing said fluid with a second fluid after the step of pumping.
Dependencies are inferred from the claim text.