Patents by Inventor Craig W. Eiser

Craig W. Eiser 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).

  • Passive pressure stabilization systems for aircraft
    Patent number: 12650202
    Abstract: Systems, apparatus, articles of manufacture, and methods are disclosed that include a casing including a first reservoir and a second reservoir, a first passageway to fluidly couple the first reservoir and the second reservoir, a second passageway to fluidly couple the first reservoir and the second reservoir, the second passageway separate from the first passageway, and a breather tube at least partially positioned in the first reservoir, the breather tube to fluidly couple the first reservoir and the second reservoir via the second passageway.
    Type: Grant
    Filed: March 18, 2024
    Date of Patent: June 9, 2026
    Assignee: THE BOEING COMPANY
    Inventors: Todd T. Harder, Craig W. Eiser, John C. Walters
  • PASSIVE PRESSURE STABILIZATION SYSTEMS FOR AIRCRAFT
    Publication number: 20250290599
    Abstract: Systems, apparatus, articles of manufacture, and methods are disclosed that include a casing including a first reservoir and a second reservoir, a first passageway to fluidly couple the first reservoir and the second reservoir, a second passageway to fluidly couple the first reservoir and the second reservoir, the second passageway separate from the first passageway, and a breather tube at least partially positioned in the first reservoir, the breather tube to fluidly couple the first reservoir and the second reservoir via the second passageway.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 18, 2025
    Inventors: Todd T. Harder, Craig W. Eiser, John C. Walters
  • Demister for a gearing system and method
    Patent number: 11719326
    Abstract: A demister for a gearing system includes a main body having an inner annular rim coupled to an outer annular rim through a first wall and a second wall opposite from the first wall. The main body is configured to be rotated about a central longitudinal axis to create centrifugal forces that separate oil mist particles from air. First fluid passages extend radially between and through the inner annular rim and the outer annular rim. The first fluid passages include a fluid inlet opening in the outer annular rim and a fluid outlet opening in the inner annular rim. The fluid inlet opening is configured to accept incoming air. The fluid outlet opening is configured to discharge filtered air.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: August 8, 2023
    Inventors: Mark Joseph Robuck, Patrick M. Ridgley, Craig W. Eiser
  • DEMISTER FOR A GEARING SYSTEM AND METHOD
    Publication number: 20220333678
    Abstract: A demister for a gearing system includes a main body having an inner annular rim coupled to an outer annular rim through a first wall and a second wall opposite from the first wall. The main body is configured to be rotated about a central longitudinal axis to create centrifugal forces that separate oil mist particles from air. First fluid passages extend radially between and through the inner annular rim and the outer annular rim. The first fluid passages include a fluid inlet opening in the outer annular rim and a fluid outlet opening in the inner annular rim. The fluid inlet opening is configured to accept incoming air. The fluid outlet opening is configured to discharge filtered air.
    Type: Application
    Filed: October 15, 2021
    Publication date: October 20, 2022
    Applicant: THE BOEING COMPANY
    Inventors: Mark Joseph Robuck, Patrick M. Ridgley, Craig W. Eiser