Cleaning apparatus and method
Patent 4949765 Issued on August 21, 1990. Estimated Expiration Date: 
May 31, 2008. 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.
May 31, 2008. 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 References 2187413 3034521 3094131 3425464 Apparatus for filling a hollow and closed system provided with only one filling aperture Cleaning apparatus and method Engine cooling system flushing apparatus and method Patent #: 4293031 InventorAssigneeApplicationNo. 200347 filed on 05/31/1988US Classes:141/7, With evacuation of container134/169A, Automotive parts cleaner141/59, Filling with exhausting the receiver141/65, EVACUATION APPARATUS141/92Pre-treatment of receiverExaminersPrimary: Cusick, Ernest G.Attorney, Agent or FirmInternational ClassB65B 003/12AbstractA cleaning apparatus and method for removal and replacement of the liquid in an automotive cooling system by use of a pumping device and by access to liquid in the automotive cooling system through the neck opening of the radiator of the automotive cooling system. The prior art requirement of introduction of one or more tees into heating hoses of the automotive cooling system is beneficially eliminated. | |
