U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and device for mixing a bulk material with a fluid

Patent 6357906 Issued on March 19, 2002. Estimated Expiration Date: Icon_subject June 8, 2019. 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

1734164

Process and apparatus for adding liquid components to pourable powdered or granular materials
Patent #: 4323314
Issued on: 04/06/1982
Inventor: Kaiser-Wirz

Injector mixer apparatus
Patent #: 4430001
Issued on: 02/07/1984
Inventor: Schurr

Fluid mixing system
Patent #: 4491414
Issued on: 01/01/1985
Inventor: Hayatdavoudi ,   et al.

Apparatus for dissolving dry polymer
Patent #: 5344619
Issued on: 09/06/1994
Inventor: Larwick, et al.

Apparatus for mixing and circulating chemicals and fluids
Patent #: 5609417
Issued on: 03/11/1997
Inventor: Otte

Mixing apparatus venturi coupled multiple shear mixing apparatus for repairing a liquid-solid slurry
Patent #: 5779355
Issued on: 07/14/1998
Inventor: Pullman

Apparatus for homogeneous mixing of a solution with tangential jet outlets
Patent #: 6109778
Issued on: 08/29/2000
Inventor: Wilmer

Apparatus and method for mixing particulate solids or gels in a liquid
Patent #: 6186657
Issued on: 02/13/2001
Inventor: Fuchsbichler

Mixing reservoir for an automated recirculating particle size analysis system Patent #: 6234664
Issued on: 05/22/2001
Inventor: Tromley

Inventors

Application

No. 327837 filed on 06/08/1999

US Classes:

366/163.2, By venturi or jet pump type device366/136, Recirculating from and to mixing chamber366/137.1, JET OR SPRAY IMPINGING FREE-FALLING STREAM366/173.2, Plural injectors for material from same source366/183.2Obstruction or distributing means in outlet (e.g., screen)

Examiners

Primary: Cooley, Charles E.

Attorney, Agent or Firm

International Class

B01F 005/02

Abstract

A product mixing apparatus and method of using a mixing apparatus. In one embodiment, the apparatus comprises a hopper containing the product, with the hopper having a throat section extending therefrom. The throat section has a first injection member configured for injecting a solution into the throat section. The apparatus further contains a mixing chamber connected with the throat section, with the mixing chamber containing a second injection member configured for injecting the solution into the mixing chamber and mixing the product with the solution to form a slurry. A liquid barrier line in fluid communication with the throat section is included in order to keep a head of liquid above the jet within the mixing chamber. An exit line extending from the mixing chamber in order to withdraw the slurry may also be included. In one embodiment, the first injection member is a nozzle positioned being positioned so as to deliver the solution into the throat section under a pressure. The injection of the solution into the throat section removes trapped and entrained air within the product. The nozzle member within the mixing chamber may contain multiple nozzles for delivering the solution under a high pressure.

Other References

  • Drilling Practices Manual, Preston L. Moore, Chapt. 16, pp. 416-41
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