Patents by Inventor Dale L. May

Dale L. May 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).

  • Pollution control device structure with lower friction surface and underlying higher friction surface
    Patent number: 9470127
    Abstract: A structure comprising at least one inorganic layer comprising inorganic materials suitable for use in a pollution control device. A friction-inducing material is disposed on at least one side of the inorganic layer. The deposited friction-inducing material defines a higher friction area exhibiting a static coefficient of friction higher than that of the inorganic materials. A lower friction layer is disposed so as to cover at least a portion of the higher friction area and define an exposed surface area of the structure. The exposed surface area exhibits a lower static coefficient of friction than that of the higher friction area. The lower friction layer no longer covers a substantial portion of the higher friction area, after the pollution control device is assembled.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: October 18, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
  • POLLUTION CONTROL DEVICE STRUCTURE WITH LOWER FRICTION SURFACE AND UNDERLYING HIGHER FRICTION SURFACE
    Publication number: 20160115833
    Abstract: A structure comprising at least one inorganic layer comprising inorganic materials suitable for use in a pollution control device. A friction-inducing material is disposed on at least one side of the inorganic layer. The deposited friction-inducing material defines a higher friction area exhibiting a static coefficient of friction higher than that of the inorganic materials. A lower friction layer is disposed so as to cover at least a portion of the higher friction area and define an exposed surface area of the structure. The exposed surface area exhibits a lower static coefficient of friction than that of the higher friction area. The lower friction layer no longer covers a substantial portion of the higher friction area, after the pollution control device is assembled.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Inventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
  • Mounting mat with lower friction surface for assembling and higher friction surface for mounting
    Patent number: 9238981
    Abstract: A mounting mat (16) comprising at least one inorganic layer (18) comprising inorganic materials suitable for mounting a pollution control element in a pollution control device. A friction-inducing material (20) is disposed on at least one side of the inorganic layer (18). The deposited friction-inducing material (20) defines a higher friction area exhibiting a static coefficient of friction higher than that of the inorganic materials. A lower friction layer (20) is disposed so as to cover at least a portion of the higher friction area and define an exposed surface area of the mounting mat (16). The exposed surface area exhibits a lower static coefficient of friction than that of the higher friction area. The lower friction layer (20) no longer covers a substantial portion of the higher friction area, after the mounting mat (16) mounts a pollution control element (14) in a pollution control device (10).
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 19, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
  • MOUNTING MAT WITH LOWER FRICTION SURFACE FOR ASSEMBLING AND HIGHER FRICTION SURFACE FOR MOUNTING
    Publication number: 20130269314
    Abstract: A mounting mat (16) comprising at least one inorganic layer (18) comprising inorganic materials suitable for mounting a pollution control element in a pollution control device. A friction—inducing material (20) is disposed on at least one side of the inorganic layer (18). The deposited friction—inducing material (20) defines a higher friction area exhibiting a static coefficient of friction higher than that of the inorganic materials. A lower friction layer (20) is disposed so as to cover at least a portion of the higher friction area and define an exposed surface area of the mounting mat (16). The exposed surface area exhibits a lower static coefficient of friction than that of the higher friction area. The lower friction layer (20) no longer covers a substantial portion of the higher friction area, after the mounting mat (16) mounts a pollution control element (14) in a pollution control device (10).
    Type: Application
    Filed: December 20, 2011
    Publication date: October 17, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz