Multi-stage centrifugal mixer
Patent 4345841 Issued on August 24, 1982. Estimated Expiration Date: 
June 20, 2000. 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.
June 20, 2000. 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 ReferencesInventorAssigneeApplicationNo. 06/161396 filed on 06/20/1980US Classes:366/2, Methods366/14, Plural mixing chambers366/165.2, Including deflector in chamber (deflector may be part of chamber wall)366/165.4, Feed means having a flow regulator (e.g., valve or pump)366/341STATIONARY MIXING CHAMBERExaminersPrimary: Jenkins, Robert W.Attorney, Agent or FirmInternational ClassesB04C 3/00 (20060101)B01F 5/00 (20060101) E21B 21/00 (20060101) E21B 21/06 (20060101) AbstractAn apparatus and method for mixing liquid or a drilling mud with solids and a second liquid is disclosed. The apparatus provides an annular housing having a plurality of mixing chambers. An inlet passageway is tangentially connected to the innermost mixing chamber for feeding slurry material to be mixed with solids axially fed into the same mixing chamber. A discharge port is further provided and connected to the outermost mixing chamber for tangentially discharging the homogeneous mixture of slurry and solid materials from the outer mixing chamber at high velocities to an elevation above the inlet. The mixing operation is enhanced by the liquid/solid mixture spilling over a first partition wall and retaining its rotational velocity and direction of rotation while passing under a second partition wall and finally out the discharge port.Other References
Field of SearchGas incorporating; fluid mixing, delivering, or conveyingWith gas incorporating; fluid mixing, delivering, or conveying Intercommunicating Plural feed or discharge means Plural mixing chambers HAVING INTERRELATED FEED AND DISCHARGE MEANS STATIONARY MIXING CHAMBER Pump type Methods Treatment or preparation of material With dynamic charging and dynamic delivery Plural charge means Including dynamic liquid charge Plural dynamic | |
