Patents by Inventor David Crenshaw

David Crenshaw 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).

  • Publication number: 20250083379
    Abstract: A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.
    Type: Application
    Filed: November 21, 2024
    Publication date: March 13, 2025
    Applicant: DC Precision Ceramics, LLC
    Inventor: David Crenshaw
  • Patent number: 12221860
    Abstract: A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.
    Type: Grant
    Filed: September 23, 2023
    Date of Patent: February 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Wangming Lu, Khiem Nguyen, Jay Patrick Painter, Caleb Kimbrell Carroll, William Stephen Averill, Deryck Edward Matthew Williams, David Crenshaw Barrow, Michael Ryan Fitzsimmons
  • Patent number: 12194586
    Abstract: An adaptable belt sander may comprise: a tool holder; a housing; a drive system comprising a first gear and a second gear configured to engage the first gear, the second gear coupled to a shaft; and a belt system comprising a belt extending from the shaft to a distal end of the adaptable belt sander, the adaptable belt sander configured to travel along a belt path in response to rotation of the shaft, the distal end having a rotating apparatus configured to engage the belt.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: January 14, 2025
    Assignee: DC PRECISION CERAMICS, LLC
    Inventor: David Crenshaw
  • Patent number: 12179416
    Abstract: A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: December 31, 2024
    Inventor: David Crenshaw
  • Patent number: 12179417
    Abstract: A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.
    Type: Grant
    Filed: March 12, 2024
    Date of Patent: December 31, 2024
    Inventor: David Crenshaw
  • Publication number: 20240416477
    Abstract: An adaptable belt sander may comprise: a tool holder; a housing; a drive system comprising a first gear and a second gear configured to engage the first gear, the second gear coupled to a shaft; and a belt system comprising a belt extending from the shaft to a distal end of the adaptable belt sander, the adaptable belt sander configured to travel along a belt path in response to rotation of the shaft, the distal end having a rotating apparatus configured to engage the belt.
    Type: Application
    Filed: January 5, 2023
    Publication date: December 19, 2024
    Applicant: DC PRECISION CERAMICS, LLC
    Inventor: David Crenshaw
  • Publication number: 20240253297
    Abstract: A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.
    Type: Application
    Filed: March 12, 2024
    Publication date: August 1, 2024
    Applicant: DC Precision Ceramics, LLC
    Inventor: David Crenshaw
  • Publication number: 20240200631
    Abstract: The present embodiments disclose a device for dampening the lateral vibrations on a blowout preventer (BOP). The device is a cylinder with a support bar and a mass contained within. The mass can move along the support bar and press against springs, thus dampening the vibrations made against a BOP and wellhead.
    Type: Application
    Filed: December 15, 2022
    Publication date: June 20, 2024
    Inventors: Wangming Lu, David Crenshaw Barrow
  • Publication number: 20240110463
    Abstract: A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.
    Type: Application
    Filed: September 23, 2023
    Publication date: April 4, 2024
    Inventors: Wangming Lu, Khiem Nguyen, Jay Patrick Painter, Caleb Kimbrell Carroll, William Stephen Averill, Deryck Edward Matthew Williams, David Crenshaw Barrow, Michael Ryan Fitzsimmons
  • Patent number: 11714472
    Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: August 1, 2023
    Assignee: ABL IP Holdings, LLC
    Inventor: David Crenshaw
  • Patent number: 11690871
    Abstract: The present application relates to the administration of plasma, fractions thereof, or mixtures thereof to humans or animals to treat or otherwise improve cognitive impairment disorders, including dementia (e.g., vascular dementia, dementia with Lewy bodies, dementia resulting from Alzheimer's disease, dementia resulting from Parkinson's disease, frontotemporal dementia, and dementia resulting from normal pressure hydrocephalus in humans, and cognitive dysfunction syndrome in companion animals), concussion, and traumatic brain injury.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: July 4, 2023
    Assignee: APC EUROPE SLU
    Inventors: Francisco Javier Polo Pozo, Louis Edward Russell, María Carmen Rodríguez Canel, Joy Marlene Campbell, Joe David Crenshaw, Miquel Moretó Pedragosa, Anna Pérez Bosque, Lluïsa Miró Martí
  • Publication number: 20230150186
    Abstract: A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.
    Type: Application
    Filed: June 4, 2021
    Publication date: May 18, 2023
    Applicant: DC Precision Ceramics, LLC
    Inventor: David Crenshaw
  • Publication number: 20220236781
    Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 28, 2022
    Inventor: David Crenshaw
  • Publication number: 20210260112
    Abstract: The present application relates to the administration of plasma, fractions thereof, or mixtures thereof to humans or animals to treat or otherwise improve cognitive impairment disorders, including dementia (e.g.
    Type: Application
    Filed: May 17, 2018
    Publication date: August 26, 2021
    Applicant: APC EUROPE SLU
    Inventors: Francisco Javier POLO POZO, Louis Edward RUSSELL, María Carmen RODRÍGUEZ CANEL, Joy Marlene CAMPBELL, Joe David CRENSHAW, Miquel MORETÓ PEDRAGOSA, Anna PÉREZ BOSQUE, Lluïsa MIRÓ MARTÍ
  • Patent number: 10903682
    Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 26, 2021
    Inventor: David Crenshaw
  • Patent number: 10779380
    Abstract: A system for providing power over Ethernet illuminated signage is provided. The system includes receiving lighting instructions via an Ethernet compatible communications protocol, translating those instructions to a lower bandwidth, slower protocol while passing through DC power. Illumination fixtures are powered by the passed-through power and operated in accordance with the translated instructions.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 15, 2020
    Assignee: ABL IP HOLDING LLC
    Inventors: David Crenshaw, Rafael Ordonez Gonzalez
  • Publication number: 20190356162
    Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 21, 2019
    Inventor: David Crenshaw
  • Publication number: 20190297710
    Abstract: A system for providing power over Ethernet illuminated signage is provided. The system includes receiving lighting instructions via an Ethernet compatible communications protocol, translating those instructions to a lower bandwidth, slower protocol while passing through DC power. Illumination fixtures are powered by the passed-through power and operated in accordance with the translated instructions.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: David Crenshaw, Rafael Ordonez Gonzalez
  • Patent number: 10361583
    Abstract: A method for providing power over Ethernet emergency lighting is disclosed. The method includes detecting a loss of power over a POE link segment connected to a lighting fixture, and in response to the detection of a loss of power over the POE link segment, causing a relaying device to connect a lamp of the fixture to a backup battery.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 23, 2019
    Assignee: IOTA ENGINEERING LLC
    Inventor: David Crenshaw
  • Publication number: 20180183264
    Abstract: A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 28, 2018
    Inventor: David Crenshaw