Patents by Inventor Margaret R. Roberts

Margaret R. Roberts 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).

  • Publication number: 20240145860
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Patent number: 11916252
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: February 27, 2024
    Assignee: Daramic, LLC
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Patent number: 11881593
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 23, 2024
    Assignee: Daramic, LLC
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Publication number: 20230198027
    Abstract: A lead acid battery is disclosed comprising a positive electrode; a negative electrode; a separator; and an electrolyte comprising a metal sulfate; wherein lead sulfate crystals formed during cycling of the lead acid battery have an average diameter in one dimension of less than 1.1 microns, less than 1.0 microns, less than 0.95 microns, or less than 0.9 microns.
    Type: Application
    Filed: May 4, 2021
    Publication date: June 22, 2023
    Inventors: Kumar Manickam, J. Kevin Whear, Margaret R. Roberts
  • Publication number: 20230155252
    Abstract: A battery separator including a porous membrane with a surfactant coating on at least one side thereof is described.
    Type: Application
    Filed: April 5, 2021
    Publication date: May 18, 2023
    Inventors: Eric H. Miller, Margaret R. Roberts, Naoto Miyake, M. Neil Golovin
  • Publication number: 20230110582
    Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 13, 2023
    Inventors: J. Kevin Whear, Eric H. Miller, Margaret R. Roberts
  • Patent number: 11552370
    Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 10, 2023
    Assignee: Daramic, LLC
    Inventors: J. Kevin Whear, Eric H. Miller, Margaret R. Roberts
  • Patent number: 11183738
    Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 23, 2021
    Assignee: Daramic, LLC
    Inventors: J. Kevin Whear, Eric H. Miller, Margaret R. Roberts
  • Publication number: 20210020883
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Publication number: 20200321580
    Abstract: Disclosed herein are improved separators for lead acid batteries, improved batteries, and related methods. The separators may include a porous membrane, rubber and/or latex, and at least one performance enhancing additive or surfactant.
    Type: Application
    Filed: June 1, 2017
    Publication date: October 8, 2020
    Inventors: James Paul PERRY, Ahila Krishnamoorthy, Kumar Manickam, Susmitha Appikatla, M. Neal Golovin, Eric H. Miller, Margaret R. Roberts
  • Publication number: 20170288277
    Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Inventors: J. Kevin Whear, Eric H. Miller, Margaret R. Roberts
  • Publication number: 20160254509
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Publication number: 20120070747
    Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 22, 2012
    Inventors: J. Kevin Whear, Eric H. Miller, Margaret R. Roberts