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US Patent 5868256 - Rotary clay material refiner
US Patent Issued on February 9, 1999
Estimated Patent Expiration Date:
August 29, 2017Estimated 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.
Estimated Patent Expiration Date:
August 29, 2017Estimated 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.AbstractAn apparatus for refining clay material having a horizontally oriented rotating drum into which clay material and water are fed. The clay material and water form a slurry which is agitated by lifters within the drum. A series of adjustable lifters within the drum refine the slurry by lifting aggregates and rocks out of the slurry and discharging them out of the refiner. The refined slurry exits the drum through an opening in the drum. The refined slurry is then taken away from the drum for further processing. | InventorApplicationNo. 920989 filed on 08/29/1997US Classes:209/173, Water or aqueous solution209/208, Grading deposition209/294, Lifters and deflectors209/299, Lifters and beaters209/913SCREW FEED CONVEYORField of Search209/172, Gravity liquid209/172.5, Suspension209/173, Water or aqueous solution209/208, Grading deposition209/913, SCREW FEED CONVEYOR209/294, Lifters and deflectors209/299Lifters and beatersExaminersPrimary: Terrell, William E.Assistant: Dillon, Joe Jr. Attorney, Agent or FirmUS Patent ReferencesRe16674, 384861, 501898, 1649020, 2117553, 2119414, 2208092, 2450980, 2608716, 2760633, 3014315, 3392828, 3837490, 3892563, 4267980SeparatorIssued on: 05/19/1981 Inventor: LaPoint Foreign Patent References
International ClassesB03B 005/60B03B 005/28 B03B 005/56 |
