Patents by Inventor Juan Jose Mejia

Juan Jose Mejia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Positive displacement rotary pumps with improved cooling
    Patent number: 8821141
    Abstract: Various rotary pumps are disclosed that are designed to pump viscous fluids or slurries. Often, the seals of such pumps can become over heated. The disclosed pumps include slots disposed in the rotors and/or slots disposed in the openings through which the drive and driven shafts task so that some of the fluid being pumped through the pumping chamber can migrate through the proximal wall of the pump casing to the seal assemblies disposed on the other side of the proximal wall of the pump casing. Thus, the seal assemblies of the pumps are cooled without resorting to the use of a cooling jacket or other cooling mechanism.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: September 2, 2014
    Assignee: Wright Flow Technologies Limited
    Inventors: Bruce Helgeson, Joe Thompson, Jim Mayer, Chris Mihm, Keith Feeley, Juan Jose Mejia
  • Positive Displacement Rotary Pumps with Improved Cooling
    Publication number: 20120328462
    Abstract: Various rotary pumps are disclosed that are designed to pump viscous fluids or slurries. Often, the seals of such pumps can become over heated. The disclosed pumps include slots disposed in the rotors and/or slots disposed in the openings through which the drive and driven shafts task so that some of the fluid being pumped through the pumping chamber can migrate through the proximal wall of the pump casing to the seal assemblies disposed on the other side of the proximal wall of the pump casing. Thus, the seal assemblies of the pumps are cooled without resorting to the use of a cooling jacket or other cooling mechanism.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 27, 2012
    Applicant: Wright Flow Technologies Limited
    Inventors: Bruce Helgeson, Joe Thompson, Jim Mayer, Chris Mihm, Keith Feeley, Juan Jose Mejia
  • Smart filtering with multiple simultaneous keyboard inputs
    Patent number: 7675435
    Abstract: Keyboard entries by users are tracked and filtered to reduce ambiguity in translating the entries to characters and predicting text based on the entries in a multiple keyboard environment. Key tables such as an equivalence table mapping characters to a base character value, a digit mapping table mapping characters to a digit between 0 and 9 are used to determine possible matches in text prediction. A letter accumulator UI is employed along with a number accumulator UI to provide users feedback on tracked letters.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 9, 2010
    Assignee: Microsoft Corporation
    Inventors: Ray Sun, Timothy M. Thairu, Kelly Gachet, Juan Jose Mejia, Timothy L. Bui, Peter Deng, Aaron Filner
  • Smart filtering with multiple simultaneous keyboard inputs
    Publication number: 20080068226
    Abstract: Keyboard entries by users are tracked and filtered to reduce ambiguity in translating the entries to characters and predicting text based on the entries in a multiple keyboard environment. Key tables such as an equivalence table mapping characters to a base character value, a digit mapping table mapping characters to a digit between 0 and 9 are used to determine possible matches in text prediction. A letter accumulator UI is employed along with a number accumulator UI to provide users feedback on tracked letters.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 20, 2008
    Applicant: Microsoft Corporation
    Inventors: Ray Sun, Timothy M. Thairu, Kelly Gachet, Juan Jose Mejia, Timothy L. Bui, Peter Deng, Aaron Filner