Automotive radiator flush system and methods of use
Patent 6604557 Issued on August 12, 2003. Estimated Expiration Date: 
September 24, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 24, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAppartaus and method for flushing and draining the coolant system of a vehicle Engine coolant changing apparatus Engine coolant removal and refill method and device Flush and fill apparatus for coolant systems and method of use Apparatus and method for filling a motor vehicle cooling system with coolant Patent #: 6234215 InventorApplicationNo. 254141 filed on 09/24/2002US Classes:141/65, EVACUATION APPARATUS141/59, Filling with exhausting the receiver184/1.5AUTOMOBILE CRANK AND GEAR CASE SERVICEExaminersPrimary: Douglas, Steven O.Attorney, Agent or FirmForeign Patent References
International ClassB65B 001/04AbstractA method of replacing radiator fluid in an automotive radiator includes providing two gas tight containers, a fluid conducting hose with a gas tight nozzle fitted into a radiator fill pipe nipple. The method further includes the steps of filling one of the containers with a fresh radiator fluid, drawing a high vacuum on a second one of the containers, drawing spent radiator fluid into the second one of the containers using only suction from the container, thereby leaving the automotive radiator under a partial vacuum and then drawing the fresh radiator fluid, from the first one of the containers, into the radiator using only suction from the partial vacuum in the radiator. A radiator flush step may also be applied following the same method, using two additional containers, one with initial high vacuum and the other containing flush fluid.Field of SearchEVACUATION APPARATUSFLUENT CHARGE IMPELLED OR FLUID CURRENT CONVEYED INTO RECEIVER Filling with exhausting the receiver With valve Plural valved passages COMBINED WITH SIGNAL, INDICATOR, RECORDER, INSPECTION MEANS OR EXHIBITOR Level or pressure in receiver AUTOMATIC CONTROL OF FLOW CUTOFF OR DIVERSION Level or overflow responsive AUTOMOBILE CRANK AND GEAR CASE SERVICE | |
