Patents by Inventor Robert K. Walsh

Robert K. Walsh 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).

  • Patent number: 6887325
    Abstract: A non azide gas generant composition of nitroguanidine and an oxidizer such as phase stabilized ammonium nitrate is provided. A gas generant having nitroguanidine and phase stabilized ammonium nitrate has many desirable characteristics such as little production of ash and the production of essentially toxic free exhaust gas. When nitroguanidine is compressed into a pellet it has needle shaped crystals that bend or distort. When the gas generant pellets are subjected to thermal cycling some nitroguanidine crystals will return to their native conformation resulting in pellet growth. To eliminate this pellet growth, nitroguanidine is passed through a vibrating ball mill. The media in the vibrating ball mill pulverizes the nitroguanidine into an amorphous crumb.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: May 3, 2005
    Assignee: Key Safety Systems, Inc.
    Inventors: J B Canterberry, Mark A. Schmidt, Edward O. Hosey, Robert K. Walsh, John H. Adams
  • Publication number: 20030127167
    Abstract: A non azide gas generant composition of nitroguanidine and an oxidizer such as phase stabilized ammonium nitrate is provided. A gas generant having nitroguanidine and phase stabilized ammonium nitrate has many desirable characteristics such as little production of ash and the production of essentially toxic free exhaust gas. When nitroguanidine is compressed into a pellet it has needle shaped crystals that bend or distort. When the gas generant pellets are subjected to thermal cycling some nitroguanidine crystals will return to their native conformation resulting in pellet growth. To eliminate this pellet growth, nitroguanidine is passed through a vibrating ball mill. The media in the vibrating ball mill pulverizes the nitroguanidine into an amorphous crumb.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 10, 2003
    Inventors: J. B. Canterberry, Mark A. Schmidt, Edward O. Hosey, Robert K. Walsh, John H. Adams
  • Patent number: 6547900
    Abstract: A non azide gas generant composition of nitroguanidine and phase stabilized ammonium nitrate is provided. This gas generant composition has many desirable characteristics such as little production of ash and the production of essentially toxic free exhaust gas. When nitroguanidine is compressed into a pellet it has needle shaped crystals that bend or distort. When the gas generant pellets are subjected to thermal cycling some nitroguanidine crystals will return to their native conformation resulting in pellet growth. To eliminate this pellet growth, nitroguanidine is passed through a VBM mill. The media in the VBM mill pulverizes the nitroguanidine into an amorphous crumb.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: April 15, 2003
    Assignee: Breed Automotive Technology, Inc.
    Inventors: J. B. Canterberry, Mark A. Schmidt, Edward O. Hosey, Robert K. Walsh, John H. Adams
  • Publication number: 20020096236
    Abstract: A non azide gas generant composition of nitroguanidine and phase stabilized ammonium nitrate is provided. This gas generant composition has many desirable characteristics such as little production of ash and the production of essentially toxic free exhaust gas. When nitroguanidine is compressed into a pellet it has needle shaped crystals that bend or distort. When the gas generant pellets are subjected to thermal cycling some nitroguanidine crystals will return to their native conformation resulting in pellet growth. To eliminate this pellet growth, nitroguanidine is passed through a VBM mill. The media in the VBM mill pulverizes the nitroguanidine into an amorphous crumb.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Inventors: J. B. Canterberry, Mark A. Schmidt, Edward O. Hosey, Robert K. Walsh, John H. Adams