Patents by Inventor Gary F. Howorth
Gary F. Howorth 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: 20230282905Abstract: A thermal runaway barrier for at least significantly slowing down a thermal runaway event within a battery assembly. The thermal runaway barrier includes a layer of a nonwoven fibrous thermal insulation comprising a fiber matrix of inorganic fibers, thermally insulative inorganic particles of fumed silica dispersed within the fiber matrix, and a binder dispersed within the fiber matrix so as to hold together the fiber matrix. An optional organic encapsulation layer may also be used to encapsulate the nonwoven fibrous thermal insulation.Type: ApplicationFiled: July 30, 2021Publication date: September 7, 2023Inventors: Tien WU, Patrick WELTER, Gary F. HOWORTH, Claus MIDDENDORF, Kerstin C. ROSEN, Heonjoo HA, Shailendra B. RATHOD
-
Publication number: 20230275289Abstract: A thermal runaway barrier for at least significantly slowing down a thermal runaway event within a battery assembly. The thermal runaway barrier includes a layer of a nonwoven fibrous thermal insulation comprising a fiber matrix of inorganic fibers, thermally insulative inorganic particles of irreversibly or permanently expanded expandable inorganic material dispersed within the fiber matrix, and a binder dispersed within the fiber matrix so as to hold together the fiber matrix. An optional organic encapsulation layer may also be used to encapsulate the nonwoven fibrous thermal insulation.Type: ApplicationFiled: July 30, 2021Publication date: August 31, 2023Inventors: Claus MIDDENDORF, Patrick WELTER, Gary F. HOWORTH, Kerstin C. ROSEN, Tien WU, Heonjoo HA, Shailendra B. BATHOD
-
Publication number: 20230238600Abstract: A thermal runaway barrier for at least significantly slowing down a thermal runaway event within a battery assembly. The thermal runaway barrier consisting essentially of a single-layer of a nonwoven fibrous thermal insulation comprising a fiber matrix of inorganic fibers, thermally insulative inorganic particles dispersed within the fiber matrix, and a binder dispersed within the fiber matrix so as to hold together the fiber matrix. An optional organic encapsulation layer may also be used to encapsulate the nonwoven fibrous thermal insulation.Type: ApplicationFiled: July 30, 2021Publication date: July 27, 2023Inventors: Shailendra B. RATHOD, Patrick WELTER, Gary F. HOWORTH, Claus MIDDENDORF, Kerstin C. ROSEN, Tien WU, Heonjoo HA, Martin SCHASCHKE
-
Patent number: 10995454Abstract: A method of making nonwoven fibrous materials suitable for use in a pollution control device or as a firestop, where the method comprises: providing a first slurry comprising water, first inorganic fibers, a first organic binder, and a first neutral pH flocculent; removing first waste water from the first slurry; optionally forming a first nonwoven fibrous material from the first slurry; providing a second slurry comprising a quantity of the first waste water, an optional quantity of relatively clean water, second inorganic fibers, a second organic binder, and a second flocculent that is the same and/or a different flocculent than that used in the first slurry; and forming a second nonwoven fibrous material from the second slurry. The addition of the first waste water in the second slurry does not adversely affect the flocculation of the second organic binder in the second slurry.Type: GrantFiled: December 12, 2014Date of Patent: May 4, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Richard P. Merry, Ian R. I. Harding, Gary F. Howorth
-
Publication number: 20200224367Abstract: A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices.Type: ApplicationFiled: March 23, 2020Publication date: July 16, 2020Inventors: Anne N. De Rovere, Gary F. Howorth, Michael Patrick M. Mandanas, Claus Middendorf
-
Publication number: 20160305071Abstract: A method of making nonwoven fibrous materials suitable for use in a pollution control device or as a firestop, where the method comprises: providing a first slurry comprising water, first inorganic fibers, a first organic binder, and a first neutral pH flocculent; removing first waste water from the first slurry; optionally forming a first nonwoven fibrous material from the first slurry; providing a second slurry comprising a quantity of the first waste water, an optional quantity of relatively clean water, second inorganic fibers, a second organic binder, and a second flocculent that is the same and/or a different flocculent than that used in the first slurry; and forming a second nonwoven fibrous material from the second slurry. The addition of the first waste water in the second slurry does not adversely affect the flocculation of the second organic binder in the second slurry.Type: ApplicationFiled: December 12, 2014Publication date: October 20, 2016Inventors: Richard P. Merry, Ian R. I. Harding, Gary F. Howorth
-
Patent number: 9470127Abstract: 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: GrantFiled: January 6, 2016Date of Patent: October 18, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
-
Publication number: 20160115833Abstract: 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: ApplicationFiled: January 6, 2016Publication date: April 28, 2016Inventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
-
Patent number: 9238981Abstract: 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: GrantFiled: December 20, 2011Date of Patent: January 19, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
-
Publication number: 20140147340Abstract: Compositions that include a mixture of biosoluble inorganic fibers and a micaceous binder are described. The compositions can be prepared free of refractory ceramic fibers that are respirable but durable in a physiological medium. The compositions are typically in the form of a sheet material or a paste and can be used, for example, as a protective packing material around the pollution control element or as an insulating material in the end cone region in a pollution control device. Sheet materials formed from the compositions have an area of a X-Y plane that decrease less than about 6 percent when heated to about 900° C.Type: ApplicationFiled: January 30, 2014Publication date: May 29, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventor: Gary F. Howorth
-
Patent number: 8673229Abstract: Compositions that include a mixture of biosoluble inorganic fibers and a micaceous binder are described. The compositions can be prepared free of refractory ceramic fibers that are respirable but durable in a physiological medium. The compositions are typically in the form of a sheet material or a paste and can be used, for example, as a protective packing material around the pollution control element or as an insulating material in the end cone region in a pollution control device. Sheet materials formed from the compositions have an area of a X-Y plane that decrease less than about 6 percent when heated to about 900° C.Type: GrantFiled: October 9, 2002Date of Patent: March 18, 2014Assignee: 3M Innovative Properties CompanyInventor: Gary F. Howorth
-
Publication number: 20130269314Abstract: 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: ApplicationFiled: December 20, 2011Publication date: October 17, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Gary F. Howorth, Dale L. May, Andrew B. Supina, David S. Seitz
-
Publication number: 20130068693Abstract: Described herein is a low back-pressure, solid phase extraction media for removing dissolved metals in a liquid. The solid phase extraction media comprises particles entrapped in a porous polymeric fiber matrix. The particles comprise at least one of a thiol-containing moiety or a thiourea-containing moiety, and the porous polymeric fiber matrix comprises a plurality of fibers and a polymeric binder.Type: ApplicationFiled: June 6, 2011Publication date: March 21, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andrew W. Rabins, Kannan Seshadri, Gary F. Howorth, Gezahegn D. Damte
-
Publication number: 20120171457Abstract: A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices.Type: ApplicationFiled: February 17, 2012Publication date: July 5, 2012Inventors: Anne N. De Rovere, Gary F. Howorth, Michael Patrick M. Mandanas
-
Patent number: 8124022Abstract: Mounting materials for pollution control devices comprising biosoluble fibers, heat treated silica fibers having a silica content of greater than about 67 percent by weight (pbw) based on a total weight of the fibers, and intumescent material, with an optional binder component, are disclosed. Methods for making and using the materials are also disclosed.Type: GrantFiled: November 30, 2005Date of Patent: February 28, 2012Assignee: 3M Innovative Properties CompanyInventors: Gary F. Howorth, Javier E. Gonzalez, Claus Middendorf
-
Publication number: 20100115900Abstract: A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices.Type: ApplicationFiled: January 29, 2008Publication date: May 13, 2010Inventors: Anne N. De Rovere, Gary F. Howorth, Michael Patrick M. Mandanas
-
Publication number: 20090208385Abstract: The fluid delivery system includes a fluid path set with a first section adapted for connection to a syringe and to a source of fluid to be loaded into the syringe, and a second section that is removably connected to the first section. A connector removably connects the first and second sections. The connector includes a first connector member having a first luer member and a first annular member disposed about the first luer member. The connector further includes a second connector member having a second luer member and a second annular member disposed about the second luer member. A check valve arrangement is disposed in of one of the first and second connector members for limiting fluid flow to one direction through the connector. The first and second annular members are adapted to operably engage to securely and releasably connect the first and second connector members.Type: ApplicationFiled: November 30, 2005Publication date: August 20, 2009Inventors: Gary F. Howorth, Javier E. Gonzalez, Claus Middendorf
-
Publication number: 20040234436Abstract: Compositions that include a mixture of biosoluble inorganic fibers and a micaceous binder are described. The compositions can be prepared free of refractory ceramic fibers that are respirable but durable in a physiological medium. The compositions are typically in the form of a sheet material or a paste and can be used, for example, as a protective packing material around the pollution control element or as an insulating material in the end cone region in a pollution control device. Sheet materials formed from the compositions have an area of a X-Y plane that decrease less than about 6 percent when heated to about 900° C.Type: ApplicationFiled: March 5, 2004Publication date: November 25, 2004Inventor: Gary F Howorth
-
Patent number: 6458418Abstract: A method of forming a multilayer sheet suitable for use as a mat for mounting a pollution control element or as a firestop. The method comprises providing one aqueous slurry and another aqueous slurry, each slurry containing inorganic materials suitable for making a mounting mat for a pollution control element or a firestop. The two aqueous slurries can be separated from one aqueous slurry. The method can also comprise depositing the one slurry onto a permeable substrate; partially removing water from the one slurry to form the one layer on the substrate; and depositing the other slurry onto the one layer. One layer is dried out of the one slurry and another layer is dried out of the other slurry so as to form the multilayer sheet.Type: GrantFiled: February 20, 2001Date of Patent: October 1, 2002Assignee: 3M Innovative Properties CompanyInventors: Roger L. Langer, Stephen M. Sanocki, Gary F. Howorth
-
Patent number: 6365267Abstract: The invention provides a multilayer intumescent mat or sheet that is useful as a mounting for a pollution control device or as a firestop. In one aspect, the multilayer intumescent sheet of the invention comprises a non-moldable flexible non-intumescent layer and a non-moldable flexible intumescent layer comprising an intumescent material wherein the layers form a single sheet without the use of auxiliary bonding means. In another aspect, the multilayer intumescent sheet of the invention comprises a first non-moldable intumescent layer comprising a first intumescent material and a second non-moldable intumescent layer comprising a second intumescent material, the first and second intumescent materials being different, wherein the layers form a single sheet without the use of auxiliary bonding means. The invention also provides a pollution control device comprising a multilayer sheet of the invention disposed between a monolith and a housing.Type: GrantFiled: September 16, 1999Date of Patent: April 2, 2002Assignee: 3M Innovative Properties CompanyInventors: Roger L. Langer, Stephen M. Sanocki, Gary F. Howorth