Patents Represented by Attorney Kenneth B. Wood
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Patent number: 8343400Abstract: Methods are disclosed by which melt-formed inorganic fibers may be processed to form a gravity-laid inorganic fiber web. The gravity-laying process comprises mechanically separating the melt-formed inorganic fibers and collecting the fibers, and may comprise blending the melt-formed inorganic fibers with other inorganic fibers and/or with inorganic particulate additives.Type: GrantFiled: April 5, 2011Date of Patent: January 1, 2013Assignee: 3M Innovative Properties CompanyInventors: Brandon L. Cordts, George W. Frost
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Patent number: 8325345Abstract: Herein are disclosed methods and devices for evaluating the quality of oils (e.g., cooking oil or flying oil). The methods can provide an indication of the free fatty acid content of the oil. The methods use an optical interrogation device to provide an indication of free fatty acid based on quantitative measurements of optical reflectance from test zones on a sampling substrate.Type: GrantFiled: March 2, 2009Date of Patent: December 4, 2012Assignee: 3M Innovative Properties CompanyInventors: Abolghassem B. Mahmoodi, Milind Balwant Sabade, Ai-Ping Wei
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Patent number: 8317957Abstract: An adhesive tape masking article that can be used to mask both a door hinge or a corner includes a thin flexible sheet of material having opposed first and second major surfaces, first and second side edges, first and second end edges, and arcuate corners extending between at least one of the first and second side edges and the first and second end edges, and adhesive on at least a portion of at least one of the first and second major surfaces, thereby defining an adhesive surface for adhering the sheet to a surface to be masked. The sheet includes a frangible connection that allows the sheet to be separated into two masking articles, each of which can be used to mask corners.Type: GrantFiled: March 1, 2011Date of Patent: November 27, 2012Assignee: 3M Innovative Properties CompanyInventor: Russel J. Schivley
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Patent number: 8314048Abstract: Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.Type: GrantFiled: June 23, 2011Date of Patent: November 20, 2012Assignee: 3M Innovative Properties CompanyInventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
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Patent number: 8314046Abstract: Heterogeneous catalyst systems, methods of making these systems, and methods of using these systems, wherein catalytically active gold is deposited onto composite support media. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. In representative embodiments, relatively fine, nanoporous guest particles are coated or otherwise provided on surfaces of relatively coarser activated carbon particles. Catalytically active gold may be deposited onto one or both of the guest or host materials either before or after the guest and host materials are combined to from the composite host material. PVD is the preferred catalyst system of depositing gold.Type: GrantFiled: June 23, 2011Date of Patent: November 20, 2012Assignee: 3M Innovative Properties CompanyInventors: John T. Brady, Marvin E. Jones, Larry A. Brey, Gina M. Buccellato, Craig S. Chamberlain, John S. Huberty, Allen R. Siedle, Thomas E. Wood, Badri Veeraraghavan, Duane D. Fansler
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Patent number: 8256574Abstract: Herein is disclosed a centrifugally-operated apparatus that comprises at least a shaft with an axis of rotation and a pawl that is coaxially mounted on the shaft with at least a portion of the pawl being movable radially inwardly and outwardly from the shaft. The axis of rotation of the shaft passes through the pawl, at a location that is radially offset from the center of mass of the pawl. Rotation of the shaft and pawl above a predetermined speed can cause at least the movable portion of the pawl to be moved radially outward from the shaft, in which position an engaging end of the movable portion of the pawl may engage with a component such as a ratchet.Type: GrantFiled: June 23, 2010Date of Patent: September 4, 2012Assignee: 3M Innovative Properties CompanyInventors: Stephen Griffiths, Kurt D. Dietrich
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Patent number: 8257976Abstract: Herein are disclosed methods and devices for optically monitoring multiple parameters of an oil sample. In one embodiment, the methods and devices can be used for determining the quality of cooking or flying oil in terms of the free fatty acid content and total polar compound content of the oil. The methods use an optical absorbtive/reflective property in evaluating the free fatty acid content, and use optical fluorescence in evaluating the total polar compound content, with both measurements using a single sampling substrate and a single measuring device.Type: GrantFiled: March 2, 2009Date of Patent: September 4, 2012Assignee: 3M Innovative Properties CompanyInventors: Ai-Ping Wei, Milind Balwant Sabade, Abolghassem B. Mahmoodi
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Patent number: 8240484Abstract: Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs.Type: GrantFiled: March 15, 2012Date of Patent: August 14, 2012Assignee: 3M Innovative Properties CompanyInventors: Andrew R. Fox, John D. Stelter, Michael R. Berrigan, Jonathan M Lise
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Patent number: 8236725Abstract: Applicant discloses multifunctional, highly active oxidation catalysts and methods of making such catalysts. Such methods include providing nanoparticles comprising titanium-oxo and zinc-oxo compositions, such as crystalline anatase titania nanoparticles with zinc-oxo domains on their surfaces, and etching the nanoparticles. The method also includes depositing catalytically active gold onto the nanoparticles, by, for example, physical vapor deposition.Type: GrantFiled: January 14, 2008Date of Patent: August 7, 2012Assignee: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Thomas E. Wood
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Patent number: 8231700Abstract: Herein is disclosed a pleated filter comprising an upstream face and a downstream face and comprising at least one flexible inextensible tridirectional scrim in discontinuous contact with the downstream face of the pleated filter and bonded to the pleat tips of the downstream face of the pleated filter. In additional embodiments, an additional tridirectional scrim may be provided in discontinuous contact with the upstream face of the pleated filter and bonded to the pleat tips of the upstream face of the pleated filter. In further embodiments, at least one continuous, substantially nonlinear adhesive strand may be provided on at least one face of the pleated filter.Type: GrantFiled: June 25, 2009Date of Patent: July 31, 2012Assignee: 3M Innovative Properties CompanyInventor: Douglas C. Sundet
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Patent number: 8178177Abstract: An article for fire protecting a duct includes a first layer of a first material including a noncombustible fibrous material and a second layer of a second material including an intumescent material. The first layer is adjacent the second layer. The article is non-self-supporting and has an initial thickness of less than about three inches when in a first application condition, and an expanded thickness when in a second heated condition. The expanded thickness is greater than the initial thickness. At the expanded thickness, the article meets Section 5.5 of AC101 Acceptance Criteria for Grease Duct Enclosure Assemblies, as specified in April 2001 by the International Council of Building Officials (ICBO-ES).Type: GrantFiled: February 11, 2005Date of Patent: May 15, 2012Assignee: 3M Innovative Properties CompanyInventors: George W. Frost, John T. Brady, Brandon L. Cordts
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Patent number: 8178470Abstract: Herein are disclosed adducts of amines and polycarboxylic acids, and methods of making such adducts. Such adducts can be used to remove cyanogen chloride. Also disclosed are methods of providing such adducts on supports to form filter media. Also disclosed are methods of combining such filter media with catalysts and/or with porous polymeric webs to form filter systems.Type: GrantFiled: February 1, 2011Date of Patent: May 15, 2012Assignee: 3M Innovative Properties CompanyInventors: Duane D. Fansler, Allen R. Siedle, Zhongshu Tan, Thomas E. Wood
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Patent number: 8162153Abstract: Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs.Type: GrantFiled: July 2, 2009Date of Patent: April 24, 2012Assignee: 3M Innovative Properties CompanyInventors: Andrew R. Fox, John D. Stelter, Michael R. Berrigan, Jonathan M Lise
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Patent number: 8161696Abstract: Herein is disclosed a sleeve system and methods of using the system. The system uses an elongated open-ended sleeve, and mounting plate parts which mate with each other to form a mounting plate and which are securable to each other and to a wall. The mounting plate thus formed comprises a collar which, when the mounting plates parts are secured together, presses against portions of the outer surface of the sleeve to hold the sleeve in place.Type: GrantFiled: October 27, 2011Date of Patent: April 24, 2012Assignee: 3M Innovative Properties CompanyInventors: Ted D Colwell, Kristen A. Jensen, Rebecca C. Lee, Ernst L. Schmidt
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Patent number: 8146305Abstract: Herein are disclosed are apparatus and methods for forming firestopped through-penetrations in poured concrete partitions. The apparatus and methods use an intumescent firestop ring that can be used in combination with a removable sleeve. The firestop ring is detachably mounted on the outer surface of the sleeve form, near one end of the sleeve. The sleeve is positioned and concrete poured around it. After solidification of the concrete the sleeve can be removed to provide a through-penetration containing the firestop ring, secured to the solidified concrete. The firestop ring may optionally comprise one or more retainers and/or one or more insulating spacers.Type: GrantFiled: August 22, 2011Date of Patent: April 3, 2012Assignee: 3M Innovative Properties CompanyInventor: Brandon L. Cordts
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Patent number: 8142538Abstract: A filter element in the form of a nonwoven self-supporting filtration web having rows of folded or corrugated spaced-apart pleats, the web containing continuous thermoplastic fibers a majority of which are aligned at 90°±20° with respect to the row direction. The filter element can be made by forming rows of pleats in such a nonwoven web and cutting the web to a desired size and shape. The filter elements can provide improved mechanical and filtration properties and can exhibit reduced susceptibility to pleat deformation and the loss of space between pleats.Type: GrantFiled: September 3, 2009Date of Patent: March 27, 2012Assignee: 3M Innovative Properties CompanyInventors: Douglas C. Sundet, Rahul R. Shah, John M. Brandner, Tien T. Wu
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Patent number: 8137041Abstract: Herein is disclosed a fastening assembly that may be used for securing first and second workpieces to each other in such manner as to provide vibration isolation between the first and second workpieces. The fastening assembly comprises an elongated, rigid fastener, and an elastomeric bushing, that are integrally secured together.Type: GrantFiled: August 5, 2009Date of Patent: March 20, 2012Assignee: 3M Innovative Properties CompanyInventor: Yong Heng Zhou
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Patent number: 8137750Abstract: The present invention provides technology for controlling, or tuning, the catalytic activity of gold provided upon nanoporous supports such as those derived from nanoparticulate titania. It has been discovered that the nature of the surfaces of the nanoparticles used to support a nano-metal catalyst, such as catalytically active gold, has a profound effect upon the catalytic properties of the supported catalyst. The support surface may be altered as desired to control the activity of the gold. The present invention teaches how thermal treatment of nanoparticulate media incorporated into a nanoporous support prior to deposition of catalytically active gold dramatically suppresses the ability of a resultant catalyst system to oxidize hydrogen. Yet, the system still readily oxidizes CO.Type: GrantFiled: February 13, 2007Date of Patent: March 20, 2012Assignee: 3M Innovative Properties CompanyInventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Gezahegan D. Damte, Duane D. Fansler, Marvin E. Jones
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Patent number: 8097310Abstract: A firestop article for fire stopping an opening in a floor or wall includes a firestop material, an enclosure surrounding the firestop material, and an attachment surface provided on the outer surface of the enclosure that allows the article to be repeatably connected to and removed from a mating surface.Type: GrantFiled: February 7, 2003Date of Patent: January 17, 2012Assignee: 3M Innovative Properties CompanyInventors: Stephen A. Miller, Charles W. Stobbie, IV, Lauren N. Waxer
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Patent number: D660415Type: GrantFiled: April 15, 2011Date of Patent: May 22, 2012Assignee: 3M Innovative Properties CompanyInventors: Nathan A. Abel, James R. Betz, Sean M. Burke, Michael J. Lynch, Matthew D. Reier, Andrew S. Viner