Patents by Inventor Robert W. Hunter
Robert W. Hunter 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: 10590265Abstract: A composition includes poly(4-methylpent-1-ene) and hollow glass microspheres. The composition has a density of less than 0.8 grams per cubic centimeter. Articles made from the composition and methods of making an article by injection molding the composition are also disclosed.Type: GrantFiled: December 29, 2014Date of Patent: March 17, 2020Assignee: 3M Innovative Properties CompanyInventors: Baris Yalcin, Robert W. Hunter, Ibrahim S. Gunes
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Patent number: 10053598Abstract: Siloxane-based pipe coatings include a hot melt processable siloxane-based elastomeric polymer, and may optionally contain fillers and additives. The siloxane-based elastomeric polymer is a urea-containing segmented copolymer or an oxamide-containing segmented copolymer. The coatings are substantially free of tackifying resins and are non-tacky and non-adhesive until heated to a temperature of at least 50 C.Type: GrantFiled: July 1, 2013Date of Patent: August 21, 2018Assignee: 3M Innovative Properties CompanyInventors: Baris Yalcin, Ibrahim S. Gunes, Audrey A. Sherman, Robert W. Hunter
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Publication number: 20160326351Abstract: A composition includes poly(4-methylpent-1-ene) and hollow glass microspheres. The composition has a density of less than 0.8 grams per cubic centimeter. Articles made from the composition and methods of making an article by injection molding the composition are also disclosed.Type: ApplicationFiled: December 29, 2014Publication date: November 10, 2016Inventors: Baris YALCIN, Robert W. HUNTER, Ibrahim S. GUNES
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Publication number: 20150218349Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.Type: ApplicationFiled: April 13, 2015Publication date: August 6, 2015Inventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
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Publication number: 20150184023Abstract: Siloxane-based pipe coatings include a hot melt processable siloxane-based elastomeric polymer, and may optionally contain fillers and additives. The siloxane-based elastomeric polymer is a urea-containing segmented copolymer or an oxamide-containing segmented copolymer. The coatings are substantially free of tackifying resins and are non-tacky and non-adhesive until heated to a temperature of at least 50 C.Type: ApplicationFiled: July 1, 2013Publication date: July 2, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Baris Yalcin, Ibrahim S. Gunes, Audrey A. Sherman, Robert W. Hunter
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Patent number: 9006302Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.Type: GrantFiled: September 7, 2011Date of Patent: April 14, 2015Assignee: 3M Innovative Properties CompanyInventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
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Publication number: 20140320293Abstract: A method for alerting an operator during linkage overload in a machine is disclosed. The method includes calculation of operational height of a payload carrier. Fluid pressure in one of a lift cylinder assembly and a tilt cylinder assembly is sensed and weight of a payload based on the fluid pressure is calculated. Maximum payload height based on the pressure of at least one of the lift cylinder assembly and the tilt cylinder assembly, is determined Based on the maximum payload height, a threshold payload height is determined and compared with an operational height of the payload carrier. When the operational height of the payload carrier is equal to or greater than the threshold payload height, at least one of a warning generation event and limiting raising of the lift cylinder assembly occurs.Type: ApplicationFiled: July 8, 2014Publication date: October 30, 2014Inventors: Robert W. Hunter, JR., Michael A. Calamari, Paul E. Pottschmidt, Joseph E. Forcash, Steven Juricak, Judson P. Long
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Patent number: 8522829Abstract: An insulated article having a first insulation region comprising a first polymeric material and first hollow ceramic microspheres and a second insulation region comprising a second polymeric material and second hollow ceramic microspheres. The first insulation region has a thermal conductivity that is no greater than the thermal conductivity of the first polymeric material and a volumetric heat capacity in a range of 60% to 90% of the volumetric heat capacity of the first polymeric material. The second insulation region has a thermal conductivity that is no greater than 90% of the thermal conductivity of the second polymeric material and a volumetric heat capacity that is less than 60% of the volumetric heat capacity of the second polymeric material. A method for making a composition for insulating an article is also described.Type: GrantFiled: November 27, 2007Date of Patent: September 3, 2013Assignee: 3M Innovative Properties CompanyInventors: Andrew S. D'Souza, Robert W. Hunter, Maria B. Urquiola
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Publication number: 20130165542Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.Type: ApplicationFiled: September 7, 2011Publication date: June 27, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
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Patent number: 8324135Abstract: Aqueous fluids comprising polysaccharide, dissolved salt, and borate anions. The fluids are useful, for example, as a drilling fluid.Type: GrantFiled: December 21, 2007Date of Patent: December 4, 2012Assignee: 3M Innovative Properties CompanyInventors: Robert W. Hunter, Jean-Marie Ruckebusch, Adriana Paiva
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Publication number: 20100126618Abstract: An insulated article having a first insulation region comprising a first polymeric material and first hollow ceramic microspheres and a second insulation region comprising a second polymeric material and second hollow ceramic microspheres. The first insulation region has a thermal conductivity that is no greater than the thermal conductivity of the first polymeric material and a volumetric heat capacity in a range of 60% to 90% of the volumetric heat capacity of the first polymeric material. The second insulation region has a thermal conductivity that is no greater than 90% of the thermal conductivity of the second polymeric material and a volumetric heat capacity that is less than 60% of the volumetric heat capacity of the second polymeric material. A method for making a composition for insulating an article is also described.Type: ApplicationFiled: November 27, 2007Publication date: May 27, 2010Inventors: Andrew S. D'Souza, Robert W. Hunter, Maria B. Urquiola
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Publication number: 20100093564Abstract: Aqueous fluids comprising polysaccharide, dissolved salt, and borate anions. The fluids are useful, for example, as a drilling fluid.Type: ApplicationFiled: December 21, 2007Publication date: April 15, 2010Inventors: Robert W. Hunter, Jean-Marie Ruckebusch, Adriana Paiva
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Patent number: 7056079Abstract: Work machines having linkages may need to have the linkage assembly locked in a predetermined position to prevent damage to an implement attached to the work machine, to prevent tipping of the work machine, to operate the implement, or other reasons. Locking the linkage assembly, however, can create significant loads on the linkage assembly. The disclosed method and apparatus is for a work machine that comprises a chassis, at least one linkage assembly attached to the work machine, at least one restraint having a first-end portion and a second-end portion, the second-end portion being attached to the chassis and the first-end portion being attached to the linkage assembly, the restraint transferring a load from the linkage assembly to the chassis.Type: GrantFiled: November 10, 2003Date of Patent: June 6, 2006Assignee: Caterpillar Inc.Inventors: Dana D. Branham, Andy R. Fowkes, Robert W. Hunter, Jr., Paul E. Pottschmidt