System and method for sensing oil quality
First Claim
1. A system for measuring the state of degradation of cooking oil comprising:
- a vat for receipt of cooking oil, the vat remote from a device used to cook food product with cooking oil;
a pump in fluid communication with the vat, the pump fluidly connected to take suction from the vat;
a sensor disposed in fluid communication within the vat and adapted to measure an electrical property that is indicative of the quality of the cooking oil within the vat;
wherein the sensor is disposed in a fluid conduit that is in fluid communication with the pump, further comprising a vent line disposed in fluid communication with the fluid conduit proximate to the sensor, the vent line in communication with the vat,wherein the vent line has an inner diameter that is smaller than an inner diameter of the fluid conduit.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for measuring the state of degradation of cooking oil in a deep fryer is provided. The system includes a loop of piping fluidly connected to a fryer for selectively allowing flow of oil from the fryer and into the loop and for returning to the fryer. A pump urges the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot. The loop further comprises a return portion that extends from a discharge of the pump toward a suction of the pump. A sensor is disposed in the return portion of the loop and adapted to measure an electrical property that is indicative of total polar materials of said cooking oil. A vent line is provided in the return portion of the loop.
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Citations
24 Claims
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1. A system for measuring the state of degradation of cooking oil comprising:
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a vat for receipt of cooking oil, the vat remote from a device used to cook food product with cooking oil; a pump in fluid communication with the vat, the pump fluidly connected to take suction from the vat; a sensor disposed in fluid communication within the vat and adapted to measure an electrical property that is indicative of the quality of the cooking oil within the vat; wherein the sensor is disposed in a fluid conduit that is in fluid communication with the pump, further comprising a vent line disposed in fluid communication with the fluid conduit proximate to the sensor, the vent line in communication with the vat, wherein the vent line has an inner diameter that is smaller than an inner diameter of the fluid conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for measuring the state of degradation of cooking oil in a deep fryer comprising:
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at least one fryer pot; a loop of piping fluidly connected to said at least one fryer pot for selectively allowing flow of oil from the at least one fryer pot into the loop and for selectively allowing the cooking oil to return to said at least one fryer pot from the loop; a pump for urging the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot, the loop further comprising a first valve that is positionable to a closed position to prevent oil flow to or from the at least one fryer pot, and is positioned to an open position to allow flow to or from the at least one fryer pot, the loop further comprises a return portion that extends from a discharge of the pump toward a suction of the pump, wherein the return portion includes a second valve that is configured to selectively prevent or allow flow through the return portion; a sensor disposed in fluid communication within the loop and adapted to measure an electrical property that is indicative of the quality of the cooking oil within the loop of piping, wherein the sensor is disposed in the return portion of the loop, wherein the return portion of the loop further comprises a vent line disposed proximate to the sensor, wherein fluid within the loop can flow into and through the vent line, further comprising a controller that receives a signal from the sensor indicative of the measured electrical property of the oil, wherein the first and second valves are remotely operable by the controller, and the controller is configured to selectively operate one or both of the first and second valves based upon the measured electrical property of the oil, wherein the vent line further comprises a third valve disposed therein, wherein the third valve is remotely operated by the controller to a closed position when the second valve is open, and the third valve is remotely operated to the open position when the second valve is closed. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A system for measuring the state of degradation of cooking oil in a deep fryer comprising:
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at least one fryer pot; a loop of piping fluidly connected to said at least one fryer pot for selectively allowing flow of oil from the at least one fryer pot into the loop and for selectively allowing the cooking oil to return to said at least one fryer pot from the loop; a pump for urging the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot, the loop further comprises a recirculation portion that extends from a discharge of the pump toward a suction of the pump, wherein the recirculation portion includes a first valve that is configured to selectively prevent or allow flow through the recirculation portion; a sensor disposed in fluid communication within the loop and adapted to measure an electrical property that is indicative of the quality of the cooking oil within the loop of piping, wherein the sensor is disposed in the recirculation portion of the loop, further comprising a vent line positioned within the recirculation portion and proximate to the sensor, wherein the vent line comprises a second valve disposed therein, and further comprising a controller that is in communication to operate the first and second valves, wherein the controller maintains the first and second valves in the opposite positions to each other. - View Dependent Claims (21, 22, 23)
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24. A system for measuring the state of degradation of cooking oil in a deep fryer comprising:
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at least one fryer pot; a loop of piping fluidly connected to said at least one fryer pot for selectively allowing flow of oil from the at least one fryer pot into the loop and for selectively allowing the cooking oil to return to said at least one fryer pot from the loop; a pump for urging the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot, the loop further comprises a recirculation portion that extends from a discharge of the pump toward a suction of the pump, wherein the recirculation portion includes a first valve that is configured to selectively prevent or allow flow through the recirculation portion; a sensor disposed in fluid communication within the loop and adapted to measure an electrical property that is indicative of the quality of the cooking oil within the loop of piping, wherein the sensor is disposed in the recirculation portion of the loop, further comprising a vent line positioned within the recirculation portion and proximate to the sensor wherein the vent line comprises a second valve disposed therein, wherein the second valve receives a signal from the first valve that is indicative of the position of the first valve, wherein the second valve is configured to be automatically positioned into a position that is opposite the position of the first valve with a master/slave relationship.
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Specification