Patents by Inventor James Henry Campbell

James Henry Campbell 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: 11022146
    Abstract: There is provided a fan assembly comprising a motor-driven impeller for creating an airflow and a nozzle comprising a first air outlet. The nozzle defines a bore through which air from outside the fan assembly is drawn by any portion of the airflow that is emitted from the first outlet and which combines with the airflow emitted from the first air outlet to produce an amplified airflow. The fan assembly further comprises a second air outlet arranged such that any portion of the airflow that is emitted from the second air outlet does not draw air through the bore defined by the nozzle thereby producing a non-amplified airflow.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 1, 2021
    Assignee: Dyson Technology Limited
    Inventors: Thomas Richard Mogridge, Ryan Alexander Hughes, James Gregory Forrest, Steven Eduard Peet, Joseph Robert Carling, James Henry Campbell Terry-Collins
  • Publication number: 20190170157
    Abstract: There is provided a fan assembly comprising a motor-driven impeller for creating an airflow and a nozzle comprising a first air outlet. The nozzle defines a bore through which air from outside the fan assembly is drawn by any portion of the airflow that is emitted from the first outlet and which combines with the airflow emitted from the first air outlet to produce an amplified airflow. The fan assembly further comprises a second air outlet arranged such that any portion of the airflow that is emitted from the second air outlet does not draw air through the bore defined by the nozzle thereby producing a non-amplified airflow.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Applicant: Dyson Technology Limited
    Inventors: Thomas Richard MOGRIDGE, Ryan Alexander HUGHES, James Gregory FORREST, Steven Eduard PEET, Joseph Robert CARLING, James Henry Campbell TERRY-COLLINS
  • Patent number: 8207460
    Abstract: An RF MEMS switch apparatus includes a planar substrate and an electrostatic actuator formed thereon. The electrostatic actuator includes two sets of interdigitated comb which is capable of moving an armature and a shunt contact head. The armature can be connected to the substrate through a main return spring and one or more contact head support springs. The shunt contact head includes a primary shunt contact and one or more spring-loaded sacrificial contacts. The shunt contact head can serve as a primary contact to bridge a stationary input electrode and an output electrode. The switch is off in a relaxed position and when actuated the primary shunt contact comes into direct mechanical contact with the stationary input electrode and the stationary output electrode. The switch remains closed as long as the actuator is powered and the springs return the armature to the relaxed position when the power is removed.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: June 26, 2012
    Assignee: Senda Micro Technologies, Inc.
    Inventors: Lorenzo G. Rodriguez, James Henry Campbell, Jose G. Mireles
  • Publication number: 20100181173
    Abstract: An RF MEMS switch apparatus includes a planar substrate and an electrostatic actuator formed thereon. The electrostatic actuator includes two sets of interdigitated comb which is capable of moving an armature and a shunt contact head. The armature can be connected to the substrate through a main return spring and one or more contact head support springs. The shunt contact head includes a primary shunt contact and one or more spring-loaded sacrificial contacts. The shunt contact head can serve as a primary contact to bridge a stationary input electrode and an output electrode. The switch is off in a relaxed position and when actuated the primary shunt contact comes into direct mechanical contact with the stationary input electrode and the stationary output electrode. The switch remains closed as long as the actuator is powered and the springs return the armature to the relaxed position when the power is removed.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Inventors: Lorenzo G. Rodriguez, James Henry Campbell, Jose G. Mireles
  • Fan
    Patent number: D888219
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 23, 2020
    Assignee: Dyson Technology Limited
    Inventors: Steven Eduard Peet, Christopher Steven Hodgson, James Henry Campbell Terry-Collins, Jason Ryan King, Alexander James Morrison, Adam James Bates, Alexander Stuart Knox
  • Fan
    Patent number: D888220
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 23, 2020
    Assignee: Dyson Technology Limited
    Inventors: Steven Eduard Peet, Christopher Steven Hodgson, James Henry Campbell Terry-Collins, Jason Ryan King, Alexander James Morrison, Adam James Bates, Alexander Stuart Knox
  • Fan
    Patent number: D888929
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 30, 2020
    Assignee: Dyson Technology Limited
    Inventors: Steven Eduard Peet, Christopher Steven Hodgson, James Henry Campbell Terry-Collins, Jason Ryan King, Alexander James Morrison, Adam James Bates, Alexander Stuart Knox
  • Fan
    Patent number: D895781
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 8, 2020
    Assignee: Dyson Technology Limited
    Inventors: Steven Eduard Peet, Christopher Steven Hodgson, James Henry Campbell Terry-Collins, Jason Ryan King, Alexander James Morrison, Adam James Bates, Alexander Stuart Knox