Patents by Inventor Michael T. Siegersma

Michael T. Siegersma 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).

  • Refrigerant compressor with wear sleeve and lubricant blends for handling debris-laden fluids
    Patent number: 12241474
    Abstract: A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft. The shaft includes a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing. The lubricant is POE oil or a lubricant blend composition that includes two or more lubricants, the two or more lubricants including a first lubricant and a second lubricant.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: March 4, 2025
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram
  • Refrigerant compressor with wear sleeve and lubricant blends for handling debris-laden fluids
    Patent number: 12044449
    Abstract: A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft. The shaft includes a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing. The lubricant is a lubricant blend composition that includes two or more lubricants, the two or more lubricants including a first lubricant and a second lubricant. The first lubricant is present at a higher volume percentage than the second lubricant, and the first lubricant includes a higher viscosity than the second lubricant.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: July 23, 2024
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram
  • REFRIGERANT COMPRESSOR WITH WEAR SLEEVE AND LUBRICANT BLENDS FOR HANDLING DEBRIS-LADEN FLUIDS
    Publication number: 20230383760
    Abstract: A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft. The shaft includes a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing. The lubricant is POE oil or a lubricant blend composition that includes two or more lubricants, the two or more lubricants including a first lubricant and a second lubricant.
    Type: Application
    Filed: May 31, 2023
    Publication date: November 30, 2023
    Inventors: Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram
  • REFRIGERANT COMPRESSOR WITH WEAR SLEEVE AND LUBRICANT BLENDS FOR HANDLING DEBRIS-LADEN FLUIDS
    Publication number: 20230384002
    Abstract: A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft. The shaft includes a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing. The lubricant is a lubricant blend composition that includes two or more lubricants, the two or more lubricants including a first lubricant and a second lubricant. The first lubricant is present at a higher volume percentage than the second lubricant, and the first lubricant includes a higher viscosity than the second lubricant.
    Type: Application
    Filed: May 31, 2022
    Publication date: November 30, 2023
    Inventors: Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram