Patents by Inventor Andrew GRANTHAM

Andrew GRANTHAM 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: 10837836
    Abstract: Infra-red sensors are often used in turbo molecular pumps to detect the temperature of the rotor or other mechanical parts and therefore indicate imminent, or potential, running failures. As deposits build up on either the infra-red sensor, or on the surface being monitored, the reading given by the sensor may not be a true representation of the actual surface temperature which can cause the pump controller to fail to stop the pump in time. The present invention provides a method and device for calibrating the sensor by creating a determined temperature rise in the sensor whilst keeping the rotor at ambient temperature. In particular the present invention uses the motor stator as the heater for causing the temperature increase.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 17, 2020
    Assignee: Edwards Limited
    Inventors: Brent Haslett, Andrew Grantham, James Alexander Haylock
  • Publication number: 20190226914
    Abstract: Infra-red sensors are often used in turbo molecular pumps to detect the temperature of the rotor or other mechanical parts and therefore indicate imminent, or potential, running failures. As deposits build up on either the infra-red sensor, or on the surface being monitored, the reading given by the sensor may not be a true representation of the actual surface temperature which can cause the pump controller to fail to stop the pump in time. The present invention provides a method and device for calibrating the sensor by creating a determined temperature rise in the sensor whilst keeping the rotor at ambient temperature. In particular the present invention uses the motor stator as the heater for causing the temperature increase.
    Type: Application
    Filed: September 6, 2017
    Publication date: July 25, 2019
    Inventors: Brent Haslett, Andrew Grantham, James Alexander Haylock
  • Publication number: 20170057122
    Abstract: An apparatus has a housing configured to receive a single serving beverage dispenser comprising a receptacle, a compostable product within the receptacle and a lid sealing an end of the receptacle. A cutter assembly is positioned at an end of the housing. The cutter assembly has a lid cutter and a receptacle cutter. A grip ring is configured to rotate the cutter assembly in response to manual manipulation, such that the lid cutter separates the lid from the receptacle and the receptacle cutter separates a top portion of the receptacle from a bottom portion of the receptacle. The housing has an open end through which the bottom portion of the receptacle is removed and a lid end through which the lid and top portion of the receptacle are removed.
    Type: Application
    Filed: February 13, 2015
    Publication date: March 2, 2017
    Inventor: Andrew GRANTHAM