Patents by Inventor Roger L. Langer
Roger L. Langer 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).
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Patent number: 8741200Abstract: The invention provides a method of making a flexible and self-supporting insulating end cone liner comprising resilient and compressible non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and a binder, as well as a method of making a pollution control device that includes such an end cone liner.Type: GrantFiled: December 13, 2013Date of Patent: June 3, 2014Assignee: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. I. Harding
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Publication number: 20140101911Abstract: The invention provides a method of making a flexible and self-supporting insulating end cone liner comprising resilient and compressible non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and a binder, as well as a method of making a pollution control device that includes such an end cone liner.Type: ApplicationFiled: December 13, 2013Publication date: April 17, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R.I. Harding
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Patent number: 8632727Abstract: The invention provides a flexible and self-supporting insulating end cone liner comprising resilient and compressible intumescent or non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and an organic binder, and a pollution control device that includes such an end cone liner.Type: GrantFiled: May 18, 2012Date of Patent: January 21, 2014Assignee: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Publication number: 20120231187Abstract: The invention provides a flexible and self-supporting insulating end cone liner comprising resilient and compressible intumescent or non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and an organic binder, and a pollution control device that includes such an end cone liner.Type: ApplicationFiled: May 18, 2012Publication date: September 13, 2012Inventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Patent number: 8182751Abstract: The invention provides a flexible and self-supporting insulating end cone liner comprising resilient and compressible intumescent or non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and an organic binder, and a pollution control device that includes such an end cone liner.Type: GrantFiled: June 10, 2010Date of Patent: May 22, 2012Assignee: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Publication number: 20100247399Abstract: The invention provides a flexible and self-supporting insulating end cone liner comprising resilient and compressible intumescent or non-intumescent material molded into a single, continuous piece having a three dimensional cone shape, with the insulating material comprising inorganic fibers and an organic binder, and a pollution control device that includes such an end cone liner.Type: ApplicationFiled: June 10, 2010Publication date: September 30, 2010Inventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Patent number: 7758795Abstract: The invention provides a preform insulating end cone suitable for forming the end cone of a pollution control device. The preform insulating end cone includes a cone shaped intumescent or non-intumescent sheet material. The sheet material has a plurality of slits enabling the sheet material to be cone shaped. A shape retaining element is in intimate contact with the intumescent sheet material. The shape retaining element enables the intumescent sheet material to maintain a cone shape. The invention also provides methods of making preform insulating end cones of the invention.Type: GrantFiled: December 17, 2002Date of Patent: July 20, 2010Assignee: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Patent number: 6923942Abstract: The invention provides a preform insulating end cone suitable for forming the end cone of a pollution control device. The preform insulating end cone includes a cone shaped intumescent or non-intumescent sheet material. The sheet material has a plurality of slits enabling the sheet material to be cone shaped. A shape retaining element is in intimate contact with the intumescent sheet material. The shape retaining element enables the intumescent sheet material to maintain a cone shape. The invention also provides methods of making preform insulating end cones of the invention.Type: GrantFiled: May 9, 1997Date of Patent: August 2, 2005Assignee: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, III, Ian R. Harding
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Publication number: 20030097752Abstract: The invention provides a preform insulating end cone suitable for forming the end cone of a pollution control device. The preform insulating end cone includes a cone shaped intumescent or non-intumescent sheet material. The sheet material has a plurality of slits enabling the sheet material to be cone shaped. A shape retaining element is in intimate contact with the intumescent sheet material. The shape retaining element enables the intumescent sheet material to maintain a cone shape. The invention also provides methods of making preform insulating end cones of the invention.Type: ApplicationFiled: December 17, 2002Publication date: May 29, 2003Applicant: 3M Innovative Properties CompanyInventors: Ryan C. Shirk, Stephen M. Sanocki, Joseph C. Peisert, Roger L. Langer, Loyd R. Hornback, Ian R. Harding
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Patent number: 6475340Abstract: A wet-laid, porous solid phase extraction sheet material that contains both active particles and binder and that possesses excellent wet strength is described. The binder is present in a relatively small amount while the particles are present in a relatively large amount. The sheet material is sufficiently strong and flexible so as to be pleatable so that, for example, it can be used in a cartridge device.Type: GrantFiled: March 15, 1999Date of Patent: November 5, 2002Assignee: 3M Innovative Properties CompanyInventors: Kurt C. Carlson, Roger L. Langer
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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
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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
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Publication number: 20010046456Abstract: A multilayer intumescent mat or sheet is useful for mounting 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. The mat desirably includes a significant proportion of inorganic fiber containing shot, and small proportions of shot-free inorganic fiber and intumescent material. 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.Type: ApplicationFiled: February 20, 2001Publication date: November 29, 2001Inventors: Roger L. Langer, Stephen M. Sanocki, Gary F. Howorth
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Patent number: 6224835Abstract: A multilayer intumescent mat or sheet is useful for mounting 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. The mat desirably includes a significant proportion of inorganic fiber containing shot, and small proportions of shot-free inorganic fiber and intumescent material. 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.Type: GrantFiled: December 15, 1997Date of Patent: May 1, 2001Assignee: 3M Innovative Properties CompanyInventor: Roger L. Langer
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Patent number: 6051193Abstract: 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 includes a non-moldable flexible non-intumescent layer and a non-moldable flexible intumescent layer including 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 includes a first non-moldable intumescent layer including 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 including a multilayer sheet of the invention disposed between a monolith and a housing.Type: GrantFiled: February 6, 1997Date of Patent: April 18, 2000Assignee: 3M Innovative Properties CompanyInventors: Roger L. Langer, Stephen M. Sanocki, Gary F. Howorth
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Patent number: 5869010Abstract: The invention provides an intumescent sheet material comprising 20 to 80 dry weight percent of at least one unexpanded intumescent material, 10 to 40 dry weight percent of at least one processed vermiculite selected from ground expanded vermiculite and delaminated vermiculite, greater than 0 to 5 dry weight percent of inorganic fibers having diameters greater than 5 microns, and greater than 0 to 10 dry weight percent of organic fibers; wherein said sheet material comprises substantially no ceramic fibers of less than 5 microns.Type: GrantFiled: March 10, 1997Date of Patent: February 9, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventor: Roger L. Langer
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Patent number: 5523059Abstract: The invention provides an intumescent sheet material comprising 25 to 60 dry weight percent of at least one unexpanded intumescent material, 25 to 60 dry weight percent of ceramic fibers, 0.5 to 5 dry weight percent of glass fibers having a diameter of less than about 2 microns, and 0.1 to 15 dry weight percent of organic binder, wherein said intumescent sheet material has a cold erosion rate of less than 0.05 grams/hour. The invention also provides catalytic converters and diesel particulate filters containing the sheet material.Type: GrantFiled: June 30, 1995Date of Patent: June 4, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Roger L. Langer
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Patent number: 5254410Abstract: Intumescent vermiculite flakes useful in mountings of catalytic converters are prepared by partially dehydrating vermiculite ore to afford a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm.sup.3. Such a mounting affords good support to the monolith at warm-up temperatures, exerts adequate holding forces at operating temperatures without danger of cracking the monolith, and does not incur gradual reduction in holding forces at operating temperatures. The mounting layer can be applied as either a mat or a paste.Type: GrantFiled: April 18, 1991Date of Patent: October 19, 1993Assignee: Minnesota Mining & Manufacturing CompanyInventors: Roger L. Langer, Richard P. Merry
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Patent number: 5250269Abstract: A catalytic converter has a metallic monolith that is mounted in a canister by a heat-insulating mat of melt-formed refractory ceramic fibers that have been annealed to provide a Resiliency Value of at least 10 kPa. A mat having such Resiliency Value does not take a compression set that would allow the monolith to become loose. The ceramic fibers preferably are melt-formed from a mixture of about equal parts by weight of Al.sub.2 O.sub.3 and SiO.sub.2. After being annealed, the ceramic fibers can have a fine-grained crystalline structure, but significant energy savings can be realized by reducing the annealing temperatures and times such that the fibers have an amorphous structure while still attaining excellent Resiliency Values.Type: GrantFiled: May 21, 1992Date of Patent: October 5, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Roger L. Langer
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Patent number: 5175197Abstract: Water-based, intumescent, fire retardant material is made from, on a dry basis by weight, 100 parts of a latex such as polychloroprene latex and from 50 to 200 parts of water-insoluble intumescent mineral granules such as hydrated alkali metal silicate granules incorporating an oxy boron compound. This water-based intumescent material dries to an elastomeric state that has a Volume Expansion Factor (as defined) of at least two. It chars into a substantially rigid refractory thermal insulator to prevent fire from penetrating through voids into which the novel intumescent material has expanded.Type: GrantFiled: December 13, 1990Date of Patent: December 29, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert E. Gestner, Roger L. Langer