Patents by Inventor Brian Walther
Brian Walther 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: 11952864Abstract: An isolation valve includes a ball valve element, an actuation section to rotate the ball valve element, and a trigger section that actuates the actuation section in response to a pressure differential. The actuation section includes an actuation mandrel, a piston housing that at least partially encases the actuation mandrel, a collet piston, and a holding collet. The piston housing and the actuation mandrel define a hydraulic chamber, and the collet piston separates the hydraulic chamber into an upper hydraulic chamber and a lower hydraulic chamber. The holding collet supports the collet piston during a stroke of the actuation mandrel that is triggered by the trigger section. The collet piston is configured to assume a rest position on the actuation mandrel before and during the stroke of the actuation mandrel, and the collet piston is configured to disengage from the actuation mandrel after the stroke of the actuation mandrel.Type: GrantFiled: July 7, 2021Date of Patent: April 9, 2024Assignee: Schlumberger Technology CorporationInventors: Brian Walther, Bo Chen
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Publication number: 20240108517Abstract: A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean.Type: ApplicationFiled: December 5, 2023Publication date: April 4, 2024Inventors: Timothy Ian MULLANE, Kelyn Anne ARORA, Jill Marlene ORR, Donald Carroll ROE, Jennifer SCHUTTE, John Brian STRUBE, Ann Cecilia TAPP, Rachael Eden WALTHER, Amanda Margaret BICKING, Jennifer Lynn DUSOLD, Margaret Elizabeth PORTER
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Publication number: 20240099909Abstract: A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Inventors: Timothy Ian MULLANE, Kelyn Anne ARORA, Jill Marlene ORR, Donald Carroll ROE, Jennifer SCHUTTE, John Brian STRUBE, Ann Cecilia TAPP, Rachael Eden WALTHER, Amanda Margaret BICKING, Jennifer Lynn DUSOLD, Margaret Elizabeth PORTER
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Publication number: 20240099908Abstract: A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Inventors: Timothy Ian MULLANE, Kelyn Anne ARORA, Jill Marlene ORR, Donald Carroll ROE, Jennifer SCHUTTE, John Brian STRUBE, Ann Cecilia TAPP, Rachael Eden WALTHER, Amanda Margaret BICKING, Jennifer Lynn DUSOLD, Margaret Elizabeth PORTER
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Publication number: 20240082075Abstract: A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean. The plurality of apertures include a first set of apertures defining a first shape and a second set of apertures defining a second shape.Type: ApplicationFiled: April 27, 2023Publication date: March 14, 2024Inventors: Timothy Ian MULLANE, Kelyn Anne ARORA, Jill Marlene ORR, Donald Carroll ROE, Jennifer SCHUTTE, John Brian STRUBE, Ann Cecilia TAPP, Rachael Eden WALTHER, Amanda Margaret BICKING, Jennifer Lynn DUSOLD, Margaret Elizabeth PORTER
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Publication number: 20240074922Abstract: A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean. The plurality of apertures include a first set of apertures defining a first shape and a second set of apertures defining a second shape.Type: ApplicationFiled: April 27, 2023Publication date: March 7, 2024Inventors: Timothy Ian MULLANE, Kelyn Anne ARORA, Jill Marlene ORR, Donald Carroll ROE, Jennifer SCHUTTE, John Brian STRUBE, Ann Cecilia TAPP, Rachael Eden WALTHER, Amanda Margaret BICKING, Jennifer Lynn DUSOLD, Margaret Elizabeth PORTER
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Publication number: 20230400118Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.Type: ApplicationFiled: August 25, 2023Publication date: December 14, 2023Inventors: Bo Chen, Brian Walther, Rannie Dong
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Patent number: 11774002Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.Type: GrantFiled: April 19, 2021Date of Patent: October 3, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Bo Chen, Brian Walther, Rannie Dong
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Publication number: 20230279737Abstract: An isolation valve includes a ball valve element, an actuation section to rotate the ball valve element, and a trigger section that actuates the actuation section in response to a pressure differential. The actuation section includes an actuation mandrel, a piston housing that at least partially encases the actuation mandrel, a collet piston, and a holding collet. The piston housing and the actuation mandrel define a hydraulic chamber, and the collet piston separates the hydraulic chamber into an upper hydraulic chamber and a lower hydraulic chamber. The holding collet supports the collet piston during a stroke of the actuation mandrel that is triggered by the trigger section. The collet piston is configured to assume a rest position on the actuation mandrel before and during the stroke of the actuation mandrel, and the collet piston is configured to disengage from the actuation mandrel after the stroke of the actuation mandrel.Type: ApplicationFiled: July 7, 2021Publication date: September 7, 2023Inventors: Brian Walther, Bo Chen
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Patent number: 11739612Abstract: An isolation valve system includes a well string having an isolation valve including a ball rotatably mounted to a pair of inserts for rotation about a fixed axis, an arm coupled to the ball at a position offset from the fixed axis, and a mandrel connected to an actuation end of the arm, the mandrel and the actuation end of the arm being disposed uphole of the ball. Via the actuation end of the arm, the mandrel forces rotation of the ball from a closed position to an open position by moving in a linear direction away from the ball, which allows flow of fluid along a through hole of the ball.Type: GrantFiled: September 16, 2019Date of Patent: August 29, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Cassius Elston, Brian Walther, Venkata Siva Reddy Battula, Ashish Sharma, Diana Orzechowski
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Publication number: 20230213112Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.Type: ApplicationFiled: April 19, 2021Publication date: July 6, 2023Inventors: Bo Chen, Brian Walther, Rannie Dong
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Publication number: 20230041944Abstract: A core rod has internal and external profiles disposed in a housing assembly. A power spring in cooperation with the core rod within the housing assembly is connected to a power spring stopper that is fixed to the housing assembly with at least one shear screw. An inner axial cycling piston bar includes an external profile for mating engagement with the internal profile of the core rod. The inner axial cycling piston bar is connected to a piston in cooperation with a cycling spring, and the piston is configured to move in an upward direction. When a downward force exerted by the cycling spring exceeds the upwardly applied cycling force, the piston, the inner axial cycling piston bar, and the external profile move in a downward direction, thereby causing the core rod to move an incremental distance in the downward direction, which compresses the power spring by the incremental distance.Type: ApplicationFiled: February 17, 2021Publication date: February 9, 2023Inventors: Bo Chen, Brian Walther, Rannie Dong
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Patent number: 11332602Abstract: The disclosure relates to a tie resin formulation with excellent adhesion to polyethylene terephthalate (PET). The resin includes (A) an ethylene acrylate copolymer formed from ethylene and alkyl acrylate, where the ethylene acrylate copolymer has an acrylate content of 10 to 30 weight percent and an ethylene content of 90 to 70 weight percent based on the total weight of the ethylene acrylate copolymer and the acrylate content and (B) a transesterification catalyst; where the resin includes: 30 to 99.999 weight percent of the ethylene acrylate copolymer based on the total weight of the resin; 0.001 to 10 weight percent of the transesterification catalyst based on the total weight of the resin; and (C) 0 to 69.999 of a non-polar polyolefin based on the total weight of the resin.Type: GrantFiled: March 29, 2018Date of Patent: May 17, 2022Assignee: Dow Global Technologies LLCInventors: Andong Liu, Yunlong Guo, Yong Zheng, Hongyu Chen, Brian Walther, Yi Zhang
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Publication number: 20210388694Abstract: An isolation valve system includes a well string having an isolation valve including a ball rotatably mounted to a pair of inserts for rotation about a fixed axis, an arm coupled to the ball at a position offset from the fixed axis, and a mandrel connected to an actuation end of the arm, the mandrel and the actuation end of the arm being disposed uphole of the ball. Via the actuation end of the arm, the mandrel forces rotation of the ball from a closed position to an open position by moving in a linear direction away from the ball, which allows flow of fluid along a through hole of the ball.Type: ApplicationFiled: September 16, 2019Publication date: December 16, 2021Inventors: Cassius Elston, Brian Walther, Venkata Siva Reddy Battula, Ashish Sharma, Diana Orzechowski
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Publication number: 20210009795Abstract: The disclosure relates to a tie resin formulation with excellent adhesion to polyethylene terephthalate (PET). The resin includes (A) an ethylene acrylate copolymer formed from ethylene and alkyl acrylate, where the ethylene acrylate copolymer has an acrylate content of 10 to 30 weight percent and an ethylene content of 90 to 70 weight percent based on the total weight of the ethylene acrylate copolymer and the acrylate content and (B) a transesterification catalyst; where the resin includes: 30 to 99.999 weight percent of the ethylene acrylate copolymer based on the total weight of the resin; 0.001 to 10 weight percent of the transesterification catalyst based on the total weight of the resin; and (C) 0 to 69.999 of a non-polar polyolefin based on the total weight of the resin.Type: ApplicationFiled: March 29, 2018Publication date: January 14, 2021Applicant: Dow Global Technologies LLCInventors: Andong Liu, Yunlong Guo, Yong Zheng, Hongyu Chen, Brian Walther, Yi Zhang
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Publication number: 20200079883Abstract: A process to form a polymer composition comprising an ethylene-based polymer and a functionalized ethylene-based polymer, said process comprising the steps described herein, which include passing a polymer melt through at least one static mixer, and wherein the functionalized ethylene-based polymer, in melt form, is introduced into the polymer melt, before the polymer melt enters the static mixer.Type: ApplicationFiled: November 11, 2017Publication date: March 12, 2020Inventors: Brian Walther, Santosh S. Bawiskar, Jianping Pan
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Publication number: 20150151517Abstract: The invention provides a film comprising at least two layers, a first layer and a second layer; and wherein the first layer is formed from a first composition comprising a polyester, a polylactic acid, or a combination thereof; and wherein the second layer is formed from a second composition comprising at least the following: A) functionalized ethylene-based polymer, and B) ethylene/alpha-olefin interpolymer; and wherein the first layer is adjacent to the second layer.Type: ApplicationFiled: March 5, 2013Publication date: June 4, 2015Applicants: Dow Brasil SA, Dow Global Technologies LLCInventors: Didem Oner-Deliormanli, Marlos Giuntini de Oliveira, Ashish Batra, Rajen Patel, Brian Walther
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Publication number: 20060199914Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: ApplicationFiled: March 15, 2006Publication date: September 7, 2006Applicant: Dow Global Technologies Inc.Inventors: William Harris, John Weaver, Brian Walther, Stephen Hahn, Yunwa Cheung, Pankaj Gupta, Thoi Ho, Kenneth Reichek, Selim Yalvac, Teresa Karjala, Benjamin Rozenblat, Cynthia Rickey
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Publication number: 20060189759Abstract: A novel flooring composition was developed based on a blend comprising: a) an elastomer; b) a random propylene/alpha-olefin copolymer; c) a cross linking agent; and optionally d) a melt strength enhancing polymer. This composition achieves a unique balance of properties, exhibiting often-conflicting performance requirements. These include low gloss and excellent pattern duplication in embossing, low modulus, minimal odor, excellent grain acceptance and abrasion resistance, while remaining thermoformable and maintaining minimal shift in viscosity during recycle.Type: ApplicationFiled: March 26, 2004Publication date: August 24, 2006Inventors: Brian Walther, Carl Baker, Sharon Baker, Michael Cassiday, Charles Diehl, Wenbin Liang, David Wright
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Publication number: 20060030667Abstract: A thermoplastic composition is described that comprises (i) from 1 to 99 percent by weight of the total composition of at least one thermoplastic copolymer, for example, styrene block copolymers, and (ii) from 1 to 99 percent by weight of the total composition of at least one homogeneously branched ethylene/?-olefin interpolymer, for example ethylene/1-octene, having a density of less than or equal to 0.899 g/cc and a Brookfield viscosity of greater than 500 cP (350° F.).Type: ApplicationFiled: September 26, 2003Publication date: February 9, 2006Inventors: Selim Yalvac, Teresa Karjala, Wilson Cheung, Brad Moncla, Brian Walther