Clean in place system
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United States of America Patent
Stats
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Jul 18, 1989
Issued Date -
N/A
app pub date -
Feb 5, 1988
filing date -
Feb 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for cleaning cone/shake makers in place. Cone/shake makers have at least one freezer for making ice cream cones or milk shakes. Each freezer has a product inlet, a product pump for pumping product from the inlet into the freezer, and at least one draw valve for dispensing the product in the freezer. The cleaning system has a mixing tank for mixing water with a cleansing chemical, the mixing tank having a capacity of less than one-fourth the volume of the water and cleansing chemical mixture to be used while cleaning a cone/shake maker. The system controllably provides the cleansing chemical to the mixing tank at a rate corresponding to the rate at which water flow into the mixing tank, thereby making a cleansing chemical solution of predefined concentration on the fly as the mixture is being used to clean the cone/shake maker. The system monitors the conductivity of the water/cleansing solution and generates an error message if the conductivity falls outside a specified range for at least a threshold period of time, thereby providing the user with a warning that the system is having a chemical dispensing problem. The cleaning system includes a draw valve actuator for each of cone/shake maker's draw valves and a controller for opening and closing these draw valves in accordance with a specified schedule.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DIVERSEY LEVER INC | 14496 SHELDON ROAD PLYMOUTH MI 48170 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cassady, Jr Henry W | Santa Cruz, CA | 3 | 112 |
Hosking, Stephen G | Santa Cruz, CA | 27 | 955 |
Livingston, James W | Santa Cruz, CA | 34 | 902 |
Moreland, Gary D | Santa Cruz, CA | 3 | 112 |
Warner, Thomas J | Santa Cruz, CA | 3 | 97 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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