Patents by Inventor Douglas Lee Tourville
Douglas Lee Tourville 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).
-
Patent number: 11939435Abstract: The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 ?m to about 30 mm and a specific surface area (SSA) of at least about 3.0 m2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.Type: GrantFiled: May 25, 2021Date of Patent: March 26, 2024Assignee: ZEUS COMPANY INC.Inventors: Robert L. Ballard, Patrick Cooper, Douglas Lee Tourville
-
Publication number: 20240066777Abstract: The disclosure generally relates to ultra high molecular weight poly(ethylene) (“UHMWPE”) tubes with an average wall thickness of 0.2 mm or less; a tensile stress at break greater than 40 MPa; and a storage modulus of greater than 500 MPa at 23° C. The disclosure further relates to preparing and using such tubes and to constructions (e.g., catheter constructions) and components thereof including such tubes.Type: ApplicationFiled: August 25, 2023Publication date: February 29, 2024Inventors: Bhavya Singhi, Justin A. Marro, Robert L. Ballard, Patrick Cooper, Daniel Green, Douglas Lee Tourville, John Richard Campanelli, Morgan Baltzegar
-
Patent number: 11912854Abstract: The present disclosure provides extruded PTFE composite tubes with a reduced coefficient of friction (COF). In some embodiments, such extruded PTFE composite tubes may exhibit a reduced change in coefficient of friction between about 20° C. and about 40° C. with the inclusion of secondary polymeric particles with small particle sizes (<100 ?m) at loading percentages of less than about 50 weight %.Type: GrantFiled: May 26, 2021Date of Patent: February 27, 2024Assignee: ZEUS COMPANY INC.Inventors: Justin A. Marro, John Richard Campanelli, Patrick Cooper, Robert L. Ballard, Douglas Lee Tourville
-
Publication number: 20220298276Abstract: The present application relates generally to tubes, such as thin walled catheter liners with small wall thicknesses (e.g., less than 1 mm), including crosslinked fluoropolymers, e.g., crosslinked poly(tetrafluoroethylene). The disclosure further provides methods of manufacturing such tubes and systems for manufacturing such tubes.Type: ApplicationFiled: June 7, 2022Publication date: September 22, 2022Inventors: Robert L. Ballard, John Richard Campanelli, Patrick Cooper, Justin A. Marro, Douglas Lee Tourville, Bhavya Singh
-
Publication number: 20210371638Abstract: The present disclosure provides extruded PTFE composite tubes with a reduced coefficient of friction (COF). In some embodiments, such extruded PTFE composite tubes may exhibit a reduced change in coefficient of friction between about 20° C. and about 40° C. with the inclusion of secondary polymeric particles with small particle sizes (<100 ?m) at loading percentages of less than about 50 weight %.Type: ApplicationFiled: May 26, 2021Publication date: December 2, 2021Inventors: Justin A. Marro, John Richard Campanelli, Patrick Cooper, Robert L. Ballard, Douglas Lee Tourville
-
Publication number: 20210371602Abstract: The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 ?m to about 30 mm and a specific surface area (SSA) of at least about 3.0 m2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.Type: ApplicationFiled: May 25, 2021Publication date: December 2, 2021Inventors: Robert L. Ballard, Patrick Cooper, Douglas Lee Tourville
-
Patent number: 10434222Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolyrneric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: GrantFiled: January 10, 2018Date of Patent: October 8, 2019Assignee: Zeus Industrial Products, Inc.Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Publication number: 20180193532Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolyrneric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: ApplicationFiled: January 10, 2018Publication date: July 12, 2018Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Patent number: 9901661Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: GrantFiled: August 22, 2016Date of Patent: February 27, 2018Assignee: Zeus Industrial Products, Inc.Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Publication number: 20170095597Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: ApplicationFiled: August 22, 2016Publication date: April 6, 2017Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Patent number: 9440044Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: GrantFiled: June 29, 2015Date of Patent: September 13, 2016Assignee: Zeus Industrial Products, Inc.Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Publication number: 20150354732Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: ApplicationFiled: June 29, 2015Publication date: December 10, 2015Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
-
Publication number: 20150352319Abstract: A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolymeric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.Type: ApplicationFiled: June 5, 2015Publication date: December 10, 2015Inventors: Irina Puzdrjakova Roof, Brian Robert Tomblin, Zeth Eberling, Bruce L. Anneaux, Douglas Lee Tourville
