Patents by Inventor Richard Webster
Richard Webster 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: 20220266484Abstract: A method of forming a shaped foamed polymer article and articles obtained from said method.Type: ApplicationFiled: July 28, 2020Publication date: August 25, 2022Inventors: Christopher Douglas James Spooner, Robert Nathan Williams, Emma Jane Newton, Richard Webster, Graham Webster
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Publication number: 20220175411Abstract: The present invention pertains to a thrombectomy device comprising a cylindrical proximal portion, a dome-shaped distal portion, a transition portion, and a coil. The cylindrical proximal portion forms a stent frame having a first lattice network of a first plurality of interconnecting segments. The first plurality of interconnecting segments is configured to exert a first radial force against an inner wall of a blood vessel. The dome-shaped distal portion forms a protection cage having a second lattice network of a second plurality of interconnecting segments. The second plurality of interconnecting segments is configured to exert a second radial force against the inner wall of the blood vessel. The transition portion is arranged between the stent frame and the protection cage. The coil is formed at a distal end of the protection cage.Type: ApplicationFiled: December 8, 2020Publication date: June 9, 2022Inventors: Jin Park, Daniel Olsen, Richard Webster Crowley, Cory Zegel, Mitch Berger
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Patent number: 10781337Abstract: Disclosed is a composition for improving the corrosion resistance of metals coated with 2K coatings. The composition comprises the reaction product of an aromatic sulfonyl isocyanate and an alcohol or polyol monomer. Also disclosed is a method of improving the corrosion resistance of metals coated with 2K coatings by the addition of a sulfonyl urethane-alcohol composition reaction product of an aromatic sulfonyl isocyanate and a mono-alcohol or poly-alcohol.Type: GrantFiled: July 26, 2018Date of Patent: September 22, 2020Assignee: Eastman Chemical CompanyInventors: Geoffrey Richard Webster, Jr., Joseph Connell Tilly
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Publication number: 20200032100Abstract: Disclosed is a composition for improving the corrosion resistance of metals coated with 2K coatings. The composition comprises the reaction product of an aromatic sulfonyl isocyanate and an alcohol or polyol monomer. Also disclosed is a method of improving the corrosion resistance of metals coated with 2K coatings by the addition of a sulfonyl urethane-alcohol composition reaction product of an aromatic sulfonyl isocyanate and a mono-alcohol or poly-alcohol.Type: ApplicationFiled: July 26, 2018Publication date: January 30, 2020Applicant: Eastman Chemical CompanyInventors: Geoffrey Richard Webster, JR., Joseph Connell Tilly
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Publication number: 20200032099Abstract: Disclosed is a composition for improving the corrosion resistance of metals coated with 2K coatings. The composition comprises a polyol resin having a sulfonyl isocyanate grafted onto the resin. The polyol resins are polyester polyols and acrylic polyols. The grafted resins significantly improve metal corrosion resistance on smooth metal substrates when the grafted resins are incorporated into 2K coating systems.Type: ApplicationFiled: July 26, 2018Publication date: January 30, 2020Applicant: Eastman Chemical CompanyInventors: Geoffrey Richard Webster, JR., Joseph Connell Tilly
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Patent number: 10203023Abstract: A gear train comprising: an input shaft; a first sun gear coupled to the input shaft; a plurality of first planet gears engaging the first sun gear; a first ring gear engaging the plurality of first planet gears; and a first planet carrier coupled to the plurality of first planet gears; a second sun gear coupled to the input shaft; a plurality of second planet gears engaging the second sun gear; a second ring gear engaging the plurality of second planet gears; and a second planet carrier coupled to the plurality of second planet gears; and an output member coupled to the first planet carrier at a first torque transfer location and coupled to the second planet carrier at a second torque transfer location, different to the first torque transfer location.Type: GrantFiled: August 12, 2016Date of Patent: February 12, 2019Assignee: ROLLS-ROYCE plcInventor: John Richard Webster
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Patent number: 9970357Abstract: A fluid conduit for a gas turbine engine. The conduit includes a superelastic material such as TNTZ or Ti2448. The conduit is installed such that at least part of the conduit is subject to a stress which lies in one of a superelastic and a plastic region of the material in use.Type: GrantFiled: October 6, 2015Date of Patent: May 15, 2018Assignee: ROLLS-ROYCE plcInventors: Paul Fletcher, John Richard Webster, Anthony John Moran
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Patent number: 9658132Abstract: A method of determining the axial load on load-sharing thrust bearings including: providing first and second thrust bearings, each including an inner race and an outer race supported by at least one resilient element; applying a test axial load to each of the first and second thrust bearings to elastically deform the at least one resilient element so as to axially displace the outer race; determining the test axial displacement of each outer race to obtain calibration data comprising values of axial load versus axial displacement; applying an in-service axial load to the first and second thrust bearings to elastically deform the resilient elements so as to axially displace the respective outer races; measuring the in-service axial displacement of each outer race; and based on the measured in-service axial displacements, inferring from the calibration data the values of the in-service axial loads on the first and second thrust bearings.Type: GrantFiled: September 13, 2016Date of Patent: May 23, 2017Assignee: ROLLS-ROYCE plcInventors: Stephen Gallimore, Paul Fletcher, John Richard Webster, Alan Robert Maguire
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Patent number: 9651092Abstract: A bearing arrangement includes: first and second thrust bearings, arranged on a shaft and including respective first and second pressure faces; and a hydraulic connection, connecting the first and second thrust bearings and having a non-compressible fluid. Applying a shaft thrust load axially moves the first thrust bearing so that the first pressure face displaces the non-compressible fluid from the first thrust bearing to the second thrust bearing so as to apply a reaction force to the second pressure face, in order that the thrust load is shared between the first and second thrust bearings.Type: GrantFiled: February 25, 2015Date of Patent: May 16, 2017Assignee: ROLLS-ROYCE plcInventors: Stephen Gallimore, John Richard Webster
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Publication number: 20170101502Abstract: A reaction system for forming a thermoset urethane or polyurethane comprising at least one polyol, at least one isocyanate, and a zinc-containing catalyst. In some aspects, the polyol may be a monomeric polyol comprising secondary hydroxyl groups or it may be a polymeric polyol comprising residues of the monomeric polyol. The zinc-containing catalyst may be effective for catalyzing the reaction of the polyol and isocyanate, particularly when at least a portion of the secondary hydroxyl groups in the monomeric or polymeric polyol are hindered secondary hydroxyl groups. Urethanes and polyurethanes formed as described herein may be used in coating compositions, including powder coating compositions, solvent-based coating compositions, and waterborne coating compositions, as well as in many other applications.Type: ApplicationFiled: October 10, 2016Publication date: April 13, 2017Applicant: Eastman Chemical CompanyInventors: Geoffrey Richard Webster, JR., Raymond T. Chlodney, William Michael Kochemba, Linqian Feng
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Patent number: 9617953Abstract: A gas turbine engine variable area exhaust nozzle has a plurality of first and second movable members arranged circumferentially around a fan casing extending in downstream. The first and second movable members alternate around the variable area nozzle. During cruise conditions the first and second movable members are in un-actuated positions. At take off conditions the first movable members are in an actuated position and the second movable members are in the un-actuated position. At top of climb conditions the first movable members are in the un-actuated position and the second movable members are in an actuated position. The first movable members move radially outwardly from the un-actuated position to the actuated position and the second movable members move radially inwardly from the un-actuated position to the actuated position.Type: GrantFiled: August 13, 2013Date of Patent: April 11, 2017Assignee: ROOLS-ROYCE PLCInventor: John Richard Webster
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Publication number: 20170074356Abstract: A gear train comprising: an input shaft; a first sun gear coupled to the input shaft; a plurality of first planet gears engaging the first sun gear; a first ring gear engaging the plurality of first planet gears; and a first planet carrier coupled to the plurality of first planet gears; a second sun gear coupled to the input shaft; a plurality of second planet gears engaging the second sun gear; a second ring gear engaging the plurality of second planet gears; and a second planet carrier coupled to the plurality of second planet gears; and an output member coupled to the first planet carrier at a first torque transfer location and coupled to the second planet carrier at a second torque transfer location, different to the first torque transfer location.Type: ApplicationFiled: August 12, 2016Publication date: March 16, 2017Applicant: ROLLS-ROYCE plcInventor: John Richard WEBSTER
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Patent number: 9546570Abstract: A bearing arrangement is disclosed. The bearing arrangement includes first and second bearings, with each bearing including a respective support element and a respective set of rolling elements and defining a respective load path extending through the respective support element and rolling elements. The support elements are coupled such that a load applied to either support element is transmitted through both the first and second load paths. The arrangement further includes a pair of superelastic titanium alloy elements located in the respective load paths to provide resilient movement between the bearings when a load is applied to the bearing arrangement.Type: GrantFiled: May 29, 2014Date of Patent: January 17, 2017Assignee: ROLLS-ROYCE plcInventors: Paul Fletcher, John Richard Webster, Alan Robert Maguire
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Publication number: 20170003196Abstract: A method of determining the axial load on load-sharing thrust bearings including: providing first and second thrust bearings, each including an inner race and an outer race supported by at least one resilient element; applying a test axial load to each of the first and second thrust bearings to elastically deform the at least one resilient element so as to axially displace the outer race; determining the test axial displacement of each outer race to obtain calibration data comprising values of axial load versus axial displacement; applying an in-service axial load to the first and second thrust bearings to elastically deform the resilient elements so as to axially displace the respective outer races; measuring the in-service axial displacement of each outer race; and based on the measured in-service axial displacements, inferring from the calibration data the values of the in-service axial loads on the first and second thrust bearings.Type: ApplicationFiled: September 13, 2016Publication date: January 5, 2017Applicant: ROLLS-ROYCE plcInventors: Stephen GALLIMORE, Paul FLETCHER, John Richard WEBSTER, Alan Robert MAGUIRE
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Patent number: 9470262Abstract: A bearing arrangement comprises: first and second thrust bearings, each including an inner race which is disposed on a shaft and an outer race which is supported by at least one resilient element. Applying a shaft thrust load elastically deforms the resilient elements so as to axially displace the respective outer races in order that the thrust load is shared between the first and second thrust bearings.Type: GrantFiled: February 25, 2015Date of Patent: October 18, 2016Assignee: ROLLS-ROYCE plcInventors: Stephen Gallimore, Paul Fletcher, John Richard Webster, Alan Robert Maguire
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Publication number: 20160108818Abstract: A fluid conduit for a gas turbine engine. The conduit includes a superelastic material such as TNTZ or Ti2448. The conduit is installed such that at least part of the conduit is subject to a stress which lies in one of a superelastic and a plastic region of the material in use.Type: ApplicationFiled: October 6, 2015Publication date: April 21, 2016Inventors: Paul FLETCHER, John Richard WEBSTER, Anthony John MORAN
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Publication number: 20150267745Abstract: A bearing arrangement includes: first and second thrust bearings, arranged on a shaft and including respective first and second pressure faces; and a hydraulic connection, connecting the first and second thrust bearings and having a non-compressible fluid. Applying a shaft thrust load axially moves the first thrust bearing so that the first pressure face displaces the non-compressible fluid from the first thrust bearing to the second thrust bearing so as to apply a reaction force to the second pressure face, in order that the thrust load is shared between the first and second thrust bearings.Type: ApplicationFiled: February 25, 2015Publication date: September 24, 2015Inventors: Stephen GALLIMORE, John Richard WEBSTER
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Publication number: 20150267744Abstract: A bearing arrangement comprises: first and second thrust bearings, each including an inner race which is disposed on a shaft and an outer race which is supported by at least one resilient element. Applying a shaft thrust load elastically deforms the resilient elements so as to axially displace the respective outer races in order that the thrust load is shared between the first and second thrust bearings.Type: ApplicationFiled: February 25, 2015Publication date: September 24, 2015Inventors: Stephen GALLIMORE, Paul FLETCHER, John Richard WEBSTER, Alan Robert MAGUIRE
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Patent number: 9127784Abstract: A duct arrangement 18 for a waterjet propulsor 10. The duct arrangement 18 comprises a main duct 30 having an inlet 20. The inlet 20 has an elongate main portion 32 extending along a principal axis 34, and at least one lateral portion 36 in fluid communication with the main portion 34. The at least one lateral portion 36 extends part way only along the length of the main portion 34.Type: GrantFiled: November 22, 2013Date of Patent: September 8, 2015Assignee: ROLLS-ROYCE PLCInventors: John Richard Webster, Paul John Newton, Paul Fletcher
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Publication number: 20140369830Abstract: A bearing arrangement is disclosed. The bearing arrangement includes first and second bearings, with each bearing including a respective support element and a respective set of rolling elements and defining a respective load path extending through the respective support element and rolling elements. The support elements are coupled such that a load applied to either support element is transmitted through both the first and second load paths. The arrangement further includes a pair of superelastic titanium alloy elements located in the respective load paths to provide resilient movement between the bearings when a load is applied to the bearing arrangement.Type: ApplicationFiled: May 29, 2014Publication date: December 18, 2014Applicant: ROLLS-ROYCE PLCInventors: Paul FLETCHER, John Richard WEBSTER, Alan Robert MAGUIRE