Apparatus and method for mixing components with a venturi arrangement
Patent 6796704 Issued on September 28, 2004. Estimated Expiration Date: 
June 6, 2020. 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 6, 2020. 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 1982479 3298669 3542342 3741533 Mixing method Eductor-mixer system Multi-stage centrifugal mixer Method and apparatus for wetting powder Mixing nozzle Spray jet polymer powder wetter InventorApplicationNo. 09588210 filed on 06/06/2000US Classes:366/163.2, By venturi or jet pump type device366/165.2, Including deflector in chamber (deflector may be part of chamber wall)366/178.1ConcentricExaminersPrimary: Cooley, Charles E.Attorney, Agent or FirmForeign Patent References
International ClassB01F 1502AbstractAn eductor mixing device (10) has a main body or housing (28) of a generally cylindrical shape and an inner tube (42) for one component to be mixed with a liquid is mounted in main body (28) with a vortex chamber (56) formed in an annulus between the main body (28) and the inlet flow tube (42). Pressurized liquid enters the vortex chamber through a generally rectangular entrance opening (36) along an arcuate surface (42) which smoothly merges with the cylindrical surface (30) of the main body or housing (28). A liquid in a swirling motion moves in a descending helical path about inner tube (42) and passes through a gap G between coaxial frusto-conical surfaces (55) and (68) of the converging inner nozzle (52) of the inner tube (42) and an outer coaxial liquid nozzle (60) of diffuser ring (58) . A high velocity is created by the swirling liquid for exerting a suction or negative pressure at the lower end of inner nozzle (52) to draw the component to be mixed, such as a particulate material, into the swirling liquid stream where the swirling liquid and particulate material form a strong vortex to create a slurry in a minimal travel distance after passing inner converging nozzle (52) of particulate inner tube (42).Field of SearchBy venturi or jet pump type deviceMaterial introduced so as to cause rotary motion in mixing chamber (e.g., cyclonic) Including deflector in chamber (deflector may be part of chamber wall) Manifold in feed means Liquid injector within mixing chamber Deflector Injector directs material onto deflector Pump forces material through restriction (e.g., static emulsifier) Concentric Feed means has plural identical outlets Inner feeder passes through wall of outer feeder and extends along common axis at the wall Including chute or hopper with gravity discharge to mixing chamber Combining by aspiration | |
