Patents by Inventor Darin Grassmann
Darin Grassmann 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: 20230148442Abstract: A flow diverter comprises a surface to divert fluid flow within oil and gas wellbore equipment exposed to flows of abrasive, corrosive, or otherwise deleterious fluids, such as those used in hydraulic fracturing. The diverter may comprise a concave surface used to limit damage to surfaces within components used to connect a frac manifold to a frac tree or to prevent the flow of fracturing fluid from a frac manifold to a frac tree.Type: ApplicationFiled: May 3, 2022Publication date: May 11, 2023Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Richard Brian Sizemore, Bob McGuire, Darin Grassmann, Mickey Claxton
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Publication number: 20220307362Abstract: A frac manifold isolation tool configured to connect to a zipper spool, and comprising a mandrel that is axially movable and a hydraulic setting tool configured to move the mandrel from an open position, in which fracturing fluid is allowed to flow from a zipper spool to a connected frac tree, to a closed position, in which the mandrel and its associated cup tool direct flow.Type: ApplicationFiled: June 14, 2022Publication date: September 29, 2022Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Jimmy Livingston, Haifang Zhao, Bob McGuire, Mickey Claxton, Danny Artherholt, Darin Grassmann
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Publication number: 20220259963Abstract: A flow diverter comprises a surface to divert fluid flow within oil and gas wellbore equipment exposed to flows of abrasive, corrosive, or otherwise deleterious fluids, such as those used in hydraulic fracturing. The diverter may comprise a concave surface used to limit damage to surfaces within components used to connect a frac manifold to a frac tree or to prevent the flow of fracturing fluid from a frac manifold to a frac tree.Type: ApplicationFiled: May 3, 2022Publication date: August 18, 2022Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Richard Brian Sizemore, Bob McGuire, Darin Grassmann, Mickey Claxton
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Patent number: 11214455Abstract: An extendable spool is disclosed. The length of the extendable spool is able to continuously varied. The extendable spool accounts for length variances in flow lines by extending the flow line rather than redirecting the flow. Because the flow direction does not make any turns, erosion is minimized on both the extendable spool and downstream parts. The extendable spool is readily scalable from small diameters to large diameters. Because of this, it requires fewer lines and therefore less setup time to account for length differences between large diameter lines.Type: GrantFiled: March 4, 2019Date of Patent: January 4, 2022Assignee: Oil States Energy Services, L.L.C.Inventors: Bob McGuire, Danny L. Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann
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Patent number: 11168528Abstract: A universal atmospheric deployment device (“UADD”) for use in oil and gas production or similar applications is provided. In one embodiment, the UADD includes a number of storage carriers disposed around a pathway that can be deployed into a well bore. The figures and art described herein show that this novel feature can increase the speed and usefulness of dispatching tools down a well bore, and also decrease down time to install or retrieve these devices. This UADD also removes personnel from the hazardous area, allowing for remote deployment of tools and devices.Type: GrantFiled: February 24, 2020Date of Patent: November 9, 2021Assignee: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny L Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann, Jimmy Livingston
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Publication number: 20200277832Abstract: A universal atmospheric deployment device (“UADD”) for use in oil and gas production or similar applications is provided. In one embodiment, the UADD includes a number of storage carriers disposed around a pathway that can be deployed into a well bore. The figures and art described herein show that this novel feature can increase the speed and usefulness of dispatching tools down a well bore, and also decrease down time to install or retrieve these devices. This UADD also removes personnel from the hazardous area, allowing for remote deployment of tools and devices.Type: ApplicationFiled: February 24, 2020Publication date: September 3, 2020Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny L Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann, Jimmy Livingston
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Publication number: 20200148493Abstract: An extendable spool is disclosed. The length of the extendable spool is able to continuously varied. The extendable spool accounts for length variances in flow lines by extending the flow line rather than redirecting the flow. Because the flow direction does not make any turns, erosion is minimized on both the extendable spool and downstream parts. The extendable spool is readily scalable from small diameters to large diameters. Because of this, it requires fewer lines and therefore less setup time to account for length differences between large diameter lines.Type: ApplicationFiled: March 4, 2019Publication date: May 14, 2020Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny L. Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann
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Patent number: 10309564Abstract: An extendable spool is disclosed. The length of the extendable spool is able to continuously varied. The extendable spool accounts for length variances in flow lines by extending the flow line rather than redirecting the flow. Because the flow direction does not make any turns, erosion is minimized on both the extendable spool and downstream parts. The extendable spool is readily scalable from small diameters to large diameters. Because of this, it requires fewer lines and therefore less setup time to account for length differences between large diameter lines.Type: GrantFiled: November 8, 2018Date of Patent: June 4, 2019Assignee: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny L. Artherholt, Mickey Claxton, Blake Mullins, Darin Grassmann