Patents by Inventor Stuart Masefield Lay

Stuart Masefield Lay 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).

  • Apparatus adapted to provide an indication of an angular position of an input member over multiple turns
    Patent number: 9310195
    Abstract: Apparatus (100) adapted to provide an indication of an angular position of an input member (106) over multiple turns includes at least two rotatable members (104A-104D) configured, in use, to rotate in accordance with rotation of an input member (106), and at least one sensing device (114A) configured to measure and output an angular position of at least one of the rotatable members. The rotatable members are configured to rotate simultaneously but at different rates. The apparatus further includes a device (114) configured to use the angular position measurements from the at least one sensing device to produce an cation of an angular position of the input member over multiple turns.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: April 12, 2016
    Assignee: Rotork Controls Limited
    Inventors: Thomas Richard Stafford, Stuart Masefield Lay, Alan Stephen Budden, Philip Stephen Hinchliffe
  • Apparatus Adapted To Provide An Indication Of An Angular Position Of An Input Member Over Multiple Turns
    Publication number: 20130212893
    Abstract: Apparatus (100) adapted to provide an indication of an angular position of an input member (106) over multiple turns includes at least two rotatable members (104A-104D) configured, in use, to rotate in accordance with rotation of an input member (106), and at least one sensing device (114A) configured to measure and output an angular position of at least one of the rotatable members. The rotatable members are configured to rotate simultaneously but at different rates. The apparatus further includes a device (114) configured to use the angular position measurements from the at least one sensing device to produce an cation of an angular position of the input member over multiple turns.
    Type: Application
    Filed: August 24, 2010
    Publication date: August 22, 2013
    Inventors: Thomas Richard Stafford, Stuart Masefield Lay, Alan Stephen Budden, Philip Stephen Hinchliffe
  • Drive mechanisms for valve actuators
    Patent number: 7055795
    Abstract: The present invention provides a motorized valve actuator wherein the drive from the motor to the output shaft of the actuator is via a worm and worm wheel or other gear mesh which is incapable of being back driven, the actuator having an alternative manual drive, the manual drive comprising a hand wheel and a clutch and lever to change from motor power drive to hand drive mode, the actuator further having an intermediate shaft between the motor and output shaft, the hand wheel being carried by or at least operatively linked to the intermediate shaft to drive the intermediate shaft, the clutch mechanism being associated with/mounted on the intermediate shaft, the intermediate shaft being positioned between the motor and the worm/worm wheel drive whereby the clutch mechanism associated with/mounted on the intermediate shaft operates substantially freely when the lever is operated to bring the actuator into hand drive mode, the output shaft torque generated by the previous motor powered run and locked into the
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: June 6, 2006
    Assignee: Rotork Controls Limited
    Inventor: Stuart Masefield Lay
  • Remote control unit for controlling a valve actuator
    Patent number: D533845
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: December 19, 2006
    Assignee: Rotork Controls Limited
    Inventor: Stuart Masefield Lay
  • Actuator component
    Patent number: D583397
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: December 23, 2008
    Assignee: Rotork Controls Limited
    Inventors: Peter George Sanders, Stuart Masefield Lay