Patents by Inventor Graham Tock

Graham Tock 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).

  • Fluid injector
    Patent number: 4399943
    Abstract: A fluid injector, for example for injecting liquid fuel into a combustion chamber, comprises a valve housing and an injector assembly which may be removably mounted on the valve housing. The injector assembly includes discharging means for discharging fluid from the injector assembly, ducting for conveying the fluid between the valve housing and the discharging means and a control valve movable to a first position in response to flow of the fluid in a first direction through the ducting to close the discharging means and return the fluid from the discharging means to the valve housing and movable to a second position in response to flow of the fluid in a second direction through the ducting to open the discharging means to allow at least some of the fluid conveyed to the discharging means to be discharged therefrom and to return any surplus fluid to the valve housing. Provided in the valve housing are inlet and outlet passages for conveying the fluid into and from the valve housing, and a change-over valve.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: August 23, 1983
    Assignee: Peabody Holmes Limited
    Inventors: Barry J. Cohen, Joseph Scaramuzza, Graham Tock
  • Fluid injector
    Patent number: 4378090
    Abstract: A fluid injector, for example for injecting liquid fuel into a combustion chamber, comprises a valve housing and an injector assembly removably mounted on the valve housing. The injector assembly includes discharging means for discharging fluid from the injector assembly, ducting for conveying the fluid between the valve housing and the discharging means and a control valve movable to a first position in response to flow of the fluid in a first direction through the ducting to close the discharging means and return the fluid from the discharging means to the valve housing and movable to a second position in response to flow of the fluid in a second direction through the ducting to open the discharging means to allow at least some of the fluid conveyed to the discharging means to be discharged therefrom and to return any surplus fluid to the valve housing. Provided in the valve housing are inlet and outlet passages for conveying the fluid into and from the valve housing, and a change-over valve.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: March 29, 1983
    Assignee: Peabody Holmes Limited
    Inventors: Barry J. Cohen, Joseph Scaramuzza, Graham Tock