Patents by Inventor David Wyman

David Wyman 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).

  • Patent number: 11560859
    Abstract: Methods and systems are provided for a diagnostic routine of a variable displacement engine (VDE) of a vehicle to detect non-deactivated valves of deactivated cylinders due to a degraded valve deactivation mechanism. In one example, a method comprises, during operation of the VDE with one or more cylinders of the VDE deactivated, calculating a variation in a fast-sampled signal outputted by one or more exhaust gas oxygen (EGO) sensors of the VDE over a plurality of engine cycles; determining that the variation is greater than the threshold variation; and in response, indicating that valves of the one or more cylinders are not deactivated. A second method comprises estimating a throttle air flow rate and an engine air flow rate of the VDE; and indicating non-deactivated valves of one or more deactivated cylinders if the throttle air flow rate exceeds the engine air flow rate by a threshold.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: January 24, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Rani Kiwan, Adam Krach, Scott Richard Hughes, Richard Shimon, Kathleen Grant, David Wyman
  • Patent number: 10503942
    Abstract: A system is provided for monitoring a data center that includes at least one rack cabinet configured to store at least one computing asset. The system includes a radio-frequency identification (RFID) tag attached to the computing asset, where the RFID tag stores inventory data related to the computing asset. The system also includes a plurality of tracking modules disposed inside of the rack cabinet without being physically attached to the computing asset. Each tracking module is adapted to monitor a condition inside of the rack cabinet. At least one of the plurality of tracking modules includes an RFID reader configured to communicate with the RFID tag to obtain the inventory data of the computing asset. The RFID tag and reader maintain a line of sight relative to each other inside of the rack cabinet to minimize metallic interference during communication therebetween.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 10, 2019
    Assignee: FMR LLC
    Inventors: Bob Thurston, Michael Bailey, David Wyman, Stephen Singer, Marc Slater, Iosif Grigoryev, Cesar Arriaga, Luis Diaz, Nathan Barnfield
  • Patent number: 10461562
    Abstract: A field device for an industrial process includes device circuitry, a shunt circuit, a bulk supply a charging power regulator and a supplemental circuit. The device circuitry is configured to receive power and communicate data over a two-wire process control loop. The shunt circuit is configured to shunt an unused portion of the power to an electrical ground. The charging power regulator is configured to regulate an excess portion of the power to charge the bulk supply based on the unused portion. The supplemental circuit is powered by the bulk supply.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 29, 2019
    Assignee: ROSEMOUNT INC.
    Inventors: Nicholas Aaron Wienhold, Matthew David Wyman, Andrew James Bronczyk
  • Publication number: 20180375363
    Abstract: A field device for an industrial process includes device circuitry, a shunt circuit, a bulk supply a charging power regulator and a supplemental circuit. The device circuitry is configured to receive power and communicate data over a two-wire process control loop. The shunt circuit is configured to shunt an unused portion of the power to an electrical ground. The charging power regulator is configured to regulate an excess portion of the power to charge the bulk supply based on the unused portion. The supplemental circuit is powered by the bulk supply.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 27, 2018
    Inventors: Nicholas Aaron Wienhold, Matthew David Wyman, Andrew James Bronczyk
  • Patent number: 7896118
    Abstract: A trolley is provided and includes at least one driven wheel and non-driven wheels. The at least one drive wheel may be moved to a position clear of the ground or to a position in which it contacts the ground with the adjacent non-driven wheels being raised off the ground. Movement between these two positions is effected by pivoting a sub-frame to which the driven wheel and the non-driven wheels are connected. During this movement, the region of the trolley above the driven wheel is first lowered and then raised slightly such that the end elevation of the support for a patient remains the same.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 1, 2011
    Assignee: Ferno (UK) Limited
    Inventors: Robert Williamson, David Wyman
  • Patent number: 7676861
    Abstract: The present invention relates to a stretcher which includes cot sides 160 and 162. These can be moved towards or away from the patient support to accommodate patients of greater width than average. The stretcher also includes a leg support that can be moved to a shock position by a hydraulic cylinder 152 connected to the lower end of the unshaped frame 150 at one end and at the other to the leg part of the patients support.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 16, 2010
    Assignee: Ferno (UK) Limited
    Inventors: Philip Ward, David Wyman
  • Publication number: 20090078479
    Abstract: A trolley is provided and includes at least one driven wheel and non-driven wheels. The at least one drive wheel may be moved to a position clear of the ground or to a position in which it contacts the ground with the adjacent non-driven wheels being raised off the ground. Movement between these two positions is effected by pivoting a sub-frame to which the driven wheel and the non-driven wheels are connected. During this movement, the region of the trolley above the driven wheel is first lowered and then raised slightly such that the end elevation of the support for a patient remains the same.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Applicant: FERNO (UK) LIMITED
    Inventors: Robert Williamson, David Wyman
  • Publication number: 20070281242
    Abstract: This invention pertains to a silsesquioxane resin with improved lithographic properties (such as etch-resistance, transparency, resolution, sensitivity, focus latitude, line edge roughness, and adhesion) suitable as a photoresist; a method for incorporating the fluorinated or non-fluorinated functional groups onto silsesquioxane backbone. The silsesquioxane resins of this invention has the general structure (HSiO3/2)a(RSiO3/2)b wherein; R is an acid dissociable group, a has a value of 0.2 to 0.9 and b has a value of 0.1 to 0.8 and 0.9?a+b?1.0.
    Type: Application
    Filed: June 30, 2004
    Publication date: December 6, 2007
    Inventors: Sanlin Hu, Eric Moyer, Sheng Wang, David Wyman
  • Publication number: 20070000056
    Abstract: The present invention relates to a stretcher which includes cot sides 160 and 162. These can be moved towards or away from the patient support to accommodate patients of greater width than average. The stretcher also includes a leg support that can be moved to a shock position by a hydraulic cylinder 152 connected to the lower end of the unshaped frame 150 at one end and at the other to the leg part of the patients support.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 4, 2007
    Inventors: Philip Ward, David Wyman
  • Patent number: 6615761
    Abstract: A self-propelled underwater transport vehicle provides propulsion for one or more divers to allow submerged travel over extended distances. The vehicle has a cylindrical open hull supporting a deck upon which a diver is supported in a prone position. A blunt bow extends upwardly from the front of the hull, and develops a flow shadow in which the diver is positioned. A control yoke, operable by the diver, is connected to steering elements, which may include bow planes and a pivoting thruster. The cylindrical hull allows the vehicle to closely approach objects without contact therewith, while the flow shadow developed by the bow minimizes drag, despite the open structure of the vehicle.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 9, 2003
    Assignee: Stidd Systems Inc.
    Inventor: David Wyman
  • Publication number: 20010035120
    Abstract: A self-propelled underwater transport vehicle provides propulsion for one or more divers to allow submerged travel over extended distances. The vehicle has a cylindrical open hull supporting a deck upon which a diver is supported in a prone position. A blunt bow extends upwardly from the front of the hull, and develops a flow shadow in which the diver is positioned. A control yoke, operable by the diver, is connected to steering elements, which may include bow planes and a pivoting thruster. The cylindrical hull allows the vehicle to closely approach objects without contact therewith, while the flow shadow developed by the bow minimizes drag, despite the open structure of the vehicle.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 1, 2001
    Inventor: David Wyman
  • Patent number: 5765871
    Abstract: A tricycle has a fourth and rear supporting wheel at a distance from and a position above the usual rear tricycle wheels so that the tricycle may be tipped to raise to simulate a wheelie. The distance between the usual rear tricycle wheels and the front wheel is adjustable, so that the maximum wheelie angle may be selected according to the child's age and proficiency. The seat may be moved to make it easier or more difficult to tip the tricycle when the child shifts his body and, therefore, the center of gravity.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: June 16, 1998
    Assignee: Empire Industries, Inc.
    Inventors: Dennis Wyman, David Wyman, Lawrence Passick
  • Patent number: 4756164
    Abstract: An improved cold storage refrigeration system and method is presented. A first heat exchanger located in a cold storage unit is connected by means of a series of vertical pipes to a second heat exchanger located below the first heat exchanger within a refrigerated space, forming an integrated tube assembly. To charge the cold storage unit, the tube assembly is operated as the evaporator of a conventional refrigeration circuit. During non-powered cooling, a portion of refrigerant is sealed within the tube assembly. The refrigerant vaporizes in the second heat exchanger and condenses in the first heat exchanger, thereby transferring heat from the refrigerated space to the cold storage unit. Defrosting of the second heat exchanger is accomplished by removing refrigerant from the second heat exchanger and circulating air above 0 degrees centrigrade around it.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: July 12, 1988
    Inventors: Timothy W. James, David Wyman
  • Patent number: 4712387
    Abstract: An improved cold storage refrigeration system and method is presented. A first heat exchanger located in a cold storage unit is connected by means of a series of vertical pipes to a second heat exchanger located below the first heat exchanger within a refrigerated space, forming an integrated tube assembly. To charge the cold storage unit, the tube assembly is operated as the evaporator of a conventional refrigeration circuit. During non-powered cooling, a portion of refrigerant is sealed within the tube assembly. The refrigerant vaporizes in the second heat exchanger and condenses in the first heat exchanger, thereby transferring heat from the refrigerated space to the cold storage unit. Defrosting of the second heat exchanger is accomplished by removing refrigerant from the second heat exchanger and circulating air above 0 degrees centigrade around it.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: December 15, 1987
    Inventors: Timothy W. James, David Wyman