Patents by Inventor Joseph A. Dunbar
Joseph A. Dunbar 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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Publication number: 20240115427Abstract: A reinforced fiber web has first and second opposed major sides and comprises first and second fiber webs having a reinforcing mesh disposed therebetween. The first and second fiber webs are physically entangled with each other and the reinforcing mesh. A wound dressing material comprises the reinforced fiber web, a first wound-contact scrim, and a first antimicrobial layer sandwiched therebetween. The first wound-contact scrim comprises water-sensitive fibers comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units.Type: ApplicationFiled: January 27, 2022Publication date: April 11, 2024Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Petra L. KOHLER RIEDI, Saurabh BATRA, Joseph J. STOFFEL, Rajan B. BODKHE, Joseph A. DUNBAR
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Publication number: 20230407529Abstract: Methods and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. The method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: ApplicationFiled: August 25, 2023Publication date: December 21, 2023Inventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, James P. Endle, Blake R. Griffith, Sylvain M. Lalonde, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Publication number: 20230399780Abstract: Methods apparatuses and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. In one embodiment, a method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: ApplicationFiled: August 25, 2023Publication date: December 14, 2023Inventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, Blake R. Griffith, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Patent number: 11814763Abstract: Methods apparatuses and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. In one embodiment, a method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: GrantFiled: August 8, 2019Date of Patent: November 14, 2023Assignee: 3M Innovative Properties CompanyInventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, Blake R. Griffith, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Patent number: 11814754Abstract: Methods and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. The method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: GrantFiled: August 8, 2019Date of Patent: November 14, 2023Assignee: 3M Innovative Properties CompanyInventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, James P. Endle, Blake R. Griffith, Sylvain M. Lalonde, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Publication number: 20230339194Abstract: The present disclosure provides a thermally conductive article including a pad having first and second opposed major surfaces and a thickness therebetween. The thickness is formed of entangled thermally conductive fibers and at least a portion of the entangled thermally conductive fibers have at least one terminal end at the first opposed major surface, the opposed second major surface, or both. The pad is at least partially impregnated with a polymer. Another thermally conductive article is provided including a) a pad having first and second opposed major surfaces and a thickness therebetween; b) a first thermally conductive skin layer; and c) a second thermally conductive skin layer. The thickness of the pad is formed of aligned thermally conductive fibers, and at least a portion of the thermally conductive fibers have a terminal end at the first opposed major surface and the opposed second major surface.Type: ApplicationFiled: February 18, 2021Publication date: October 26, 2023Inventors: Jacob P. Podkaminer, Jens Eichler, Peter J. Schneider, Sebastian Goris, Victor Ho, Joseph A. Dunbar, Matthew T. Johnson, Jay B. Preston, Matthew H. Frey, Eric L. Askeland, Steven D. Solomonson, Sung W. Moon, Michael P. Wald
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Publication number: 20230190988Abstract: A wound dressing material comprises a porous flexible foam core, a wound-contact scrim, and an antimicrobial layer. The wound-contact scrim comprises water-sensitive fibers comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units. The antimicrobial layer is sandwiched between the porous flexible foam core and the wound-contact scrim. The wounds dressing material may be contacted with an exposed surface of a wound. A method of making the wound dressing material is also disclosed.Type: ApplicationFiled: June 3, 2021Publication date: June 22, 2023Inventors: Petra L. Kohler Riedi, Saurabh Batra, Naimul Karim, Joseph J. Stoffel, Rajan B. Bodkhe, Joseph A. Dunbar
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Publication number: 20230041502Abstract: A method of forming a random fiber web using pneumatic fiber feeding system is disclosed. The method includes providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder. The method also includes doffing the plurality of fibers from the lickerin at a doffing location within the system. The method also includes communicating an air supply to entrain the plurality of fibers with the air supply after the doffing. The method also includes controlling the air supply within a flow path between the lickerin and a collector. The method also includes collecting the plurality of fibers from the air supply on a collector to form the random fiber web.Type: ApplicationFiled: January 13, 2021Publication date: February 9, 2023Inventors: Warren D. Eaton, William P. Klinzing, Jon A. Lindberg, David C. Raithel, Joshua D. Tibbits, Joseph A. Dunbar, Blake R. Griffith, Jesse R. Seifert
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Publication number: 20230015051Abstract: Filter media are described. In particular, a filter media includes an intake side, an exhaust side, and a plurality of fibers distributed throughout the filter media. The fibers have a plurality of deniers, and fibers disposed proximate the intake side have a first denier and fibers disposed proximate the exhaust side have a second denier. The first denier is larger than the second denier.Type: ApplicationFiled: December 10, 2020Publication date: January 19, 2023Inventors: Matthew W. Gorrell, Tommie W. Kelley, Windy A. Santa Cruz, David C. Raithel, John B. Stender, Stephen M. Sanocki, Yaohua Gao, John M. Brandner, Joseph A. Dunbar
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Publication number: 20220378621Abstract: A wound dressing material comprises first and second wound-contact scrims, and an antimicrobial layer disposed therebetween. The wound-contact scrims comprise water-sensitive fibers comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units. The wound dressing material may be contacted with an exposed surface of a wound. A method of making the wound dressing material is also disclosed.Type: ApplicationFiled: October 12, 2020Publication date: December 1, 2022Inventors: Petra L. Kohler Riedi, Saurabh Batra, Naimul Karim, Joseph J. Stoffel, Rajan B. Bodkhe, Joseph A. Dunbar, Colby W. Dotseth
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Publication number: 20220315977Abstract: Article for sampling comprising inner layer, one or more outer layers, and optional scouring layer on a portion of the one or more outer layers.Type: ApplicationFiled: August 17, 2020Publication date: October 6, 2022Inventors: Sailaja Chandrapati, Saurabh Batra, Stephen M. Sanocki, Walter E. Partlo, Lou D. Hibbard, Joseph A. Dunbar
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Publication number: 20220304939Abstract: A pre-loaded wipe, including a plurality of fibers having a denier value of less than about 1.0, and having a cationic antimicrobial composition distributed throughout the plurality of fibers. The cationic antimicrobial composition includes a cationic antiseptic compound chosen from bispyridines, biguanides, bisbiguanides, polymeric biguanides, salts thereof, and mixtures and combinations thereof. The pre-loaded wipe has good properties for releasing the cationic antiseptic compound when wiped on a treatment site.Type: ApplicationFiled: June 18, 2020Publication date: September 29, 2022Inventors: Ranjani V. PARTHASARATHY, Max A. KRUZIKI, Joseph A. DUNBAR
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Publication number: 20220280681Abstract: A wound dressing material comprises a base fiber web, a wound-contact scrim, and an antimicrobial layer. The wound-contact scrim comprises water-sensitive fibers comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units. The antimicrobial layer is sandwiched between the base fiber web and the wound-contact scrim. The wounds dressing material may be contacted with an exposed surface of a wound. A method of making the wound dressing material is also disclosed.Type: ApplicationFiled: September 24, 2020Publication date: September 8, 2022Inventors: Petra L. Kohler Riedi, Saurabh Batra, Naimul Karim, Joseph J. Stoffel, Rajan B. Bodkhe, Joseph A. Dunbar, Colby W. Dotseth, Semra Colak Atan
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Publication number: 20220228306Abstract: A method of making a nonwoven fiber web comprises: providing a melt-blown nonwoven fiber web comprising bonded primary fibers having an average fiber diameter of 2 to 100 microns, wherein the primary fibers comprise a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units; opening at least a portion of the melt-blown nonwoven fiber web to provide loose primary fibers; combining the loose primary fibers with secondary fibers; and forming a secondary nonwoven fiber web comprising the primary fibers and secondary fibers. A fiber web preparable according to the method and a multicomponent fiber including a first phase comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units and a second phase comprising a non-biodegradable polymer.Type: ApplicationFiled: June 12, 2020Publication date: July 21, 2022Inventors: Petra L. Kohler Reidi, Saurabh Batra, Hannah C. Cohen, Semra Colak Atan, Naimul Karim, Joseph J. Stoffel, Joseph A. Dunbar, Colby W. Dotseth
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Publication number: 20220176282Abstract: Filter assemblies are described. In particular, filter assemblies that include a filter frame, a fire resistant filter media, and a metallic layer disposed on and covering a major surface of the filter frame are described. The filter frame is rigid and includes at least one of a polymeric material, wood, or a wood pulp material. Filter assemblies described include flammable or meltable materials yet may retain structural integrity after being exposed to flame.Type: ApplicationFiled: March 18, 2020Publication date: June 9, 2022Inventors: Hannah L. Stoughton, Windy A. Santa Cruz, Matthew W. Gorrell, John B. Stender, Tommie W. Kelley, Christine L. McCool, Stephen M. Sanocki, Yaohua Gao, Joseph A. Dunbar, John M. Brandner
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Publication number: 20210355615Abstract: Methods and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. The method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: ApplicationFiled: August 8, 2019Publication date: November 18, 2021Inventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, James P. Endle, Blake R. Griffith, Sylvain M. Lalonde, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Publication number: 20210348317Abstract: Methods apparatuses and systems of forming a random fiber web using pneumatic fiber feeding system are disclosed. In one embodiment, a method can optionally comprise: providing a plurality of moveable apparatuses including a lickerin and a feeder, the lickerin configured to remove a plurality of fibers from a fibrous mat delivered to adjacent the lickerin by the feeder; doffing the plurality of fibers from the lickerin at a doffing location within the system; communicating an air supply to entrain the plurality of fibers with the air supply after the doffing; and collecting the plurality of fibers from the air supply to form the random fiber web.Type: ApplicationFiled: August 8, 2019Publication date: November 11, 2021Inventors: William P. Klinzing, Warren D. Eaton, Jon A. Lindberg, David C. Raithel, Kyle J. Baumgartner, James C. Breister, Joseph A. Dunbar, Blake R. Griffith, Cristobal Martin Bernia, Jesse R. Seifert, Joshua D. Tibbits
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Publication number: 20210316239Abstract: Various embodiments disclosed relate to a fire-resistant filter and methods of making and using the same. A filter includes a fibrous web or sheet comprising fire-resistant fibers, the fire-resistant fibers comprising oxidized polyacrylonitrile (OPAN), flame-retardant (FR) rayon, or a combination thereof.Type: ApplicationFiled: September 6, 2019Publication date: October 14, 2021Inventors: Matthew W. Gorrell, Hannah L. Stoughton, Windy A. Santa Cruz, Christine L. McCool, Tommie W. Kelley, John B. Stender, Blake R. Griffith, John M. Brandner, Yaohua Gao, Stephen M. Sanocki, Joseph A. Dunbar
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Patent number: 4343647Abstract: Compounds are prepared which correspond to the formula ##STR1## wherein R represents hydrogen, chloro, bromo or trifluoromethyl; n represents an integer of from 1 or 2 with the proviso that when R is trifluoromethyl, n is 1; R.sup.1, R.sup.2 and R.sup.3 each independently represent ethyl, n-propyl, n-butyl, isobutyl, ethynyl, vinyl or ethoxymethyl or R.sup.2 and R.sup.3 taken together form an alkylene bridge of 2 to 4 carbon atoms and X represents a non-phytotoxic anion. The compounds have been found to be active plant growth regulatory control agents.Type: GrantFiled: June 9, 1980Date of Patent: August 10, 1982Assignee: The Dow Chemical CompanyInventors: Joseph Dunbar, Theodore W. Holmsen, Herman O. Senkbeil