Patents by Inventor Aaron Paul Richie

Aaron Paul Richie 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).

  • Seal arrangement for rotating equipment
    Patent number: 10435981
    Abstract: A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 8, 2019
    Assignee: KALSI ENGINEERING INC.
    Inventor: Aaron Paul Richie
  • SEAL ARRANGEMENT FOR ROTATING EQUIPMENT
    Publication number: 20190112890
    Abstract: A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Applicant: KALSI ENGINEERING INC.
    Inventor: AARON PAUL RICHIE
  • Dynamic backup ring assembly
    Patent number: 9429238
    Abstract: A seal backup ring assembly is provided that eliminates fluid differential pressure acting radially on the backup ring, preventing collapse of the backup ring against a shaft. The backup ring is assembled so that the initial clearance (extrusion gap) between the backup ring and relatively rotating member is not affected by the differential pressure acting across the assembly. This allows for an initially small extrusion gap to be present throughout the differential pressure range.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 30, 2016
    Assignee: Kalsi Engineering, Inc.
    Inventors: Aaron Paul Richie, Lannie Laroy Dietle
  • DYNAMIC BACKUP RING ASSEMBLY
    Publication number: 20140035238
    Abstract: A seal backup ring assembly is provided that eliminates fluid differential pressure acting radially on the backup ring, preventing collapse of the backup ring against a shaft. The backup ring is assembled so that the initial clearance (extrusion gap) between the backup ring and relatively rotating member is not affected by the differential pressure acting across the assembly. This allows for an initially small extrusion gap to be present throughout the differential pressure range.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: Kalsi Engineering, Inc.
    Inventors: Aaron Paul Richie, Lannie Laroy Dietle