Patents by Inventor Malcolm Williams

Malcolm Williams 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: 11098718
    Abstract: A pump cooling system may include a cooling body configured to be fitted to a pump housing to receive heat from the pump housing via a heat conducting path between the cooling body and pump housing. The cooling body may have a passage through which, in use, a cooling fluid is passed to conduct heat away from the cooling body. The pump cooling system includes a cooling control mechanism configured to provide a gap in the heat conducting path at pump operating temperatures below a predefined temperature so heat conduction from the pump housing to the cooling body is interrupted.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 24, 2021
    Assignee: Edwards Limited
    Inventors: Michael Henry North, Phillip North, Malcolm William Gray, Neil Turner
  • Patent number: 10982662
    Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 20, 2021
    Assignee: Edwards Limited
    Inventors: Ian David Stones, Malcolm William Gray, Iain David Port
  • Publication number: 20200240414
    Abstract: A pump cooling system may include a cooling body configured to be fitted to a pump housing to receive heat from the pump housing via a heat conducting path between the cooling body and pump housing. The cooling body may have a passage through which, in use, a cooling fluid is passed to conduct heat away from the cooling body. The pump cooling system includes a cooling control mechanism configured to provide a gap in the heat conducting path at pump operating temperatures below a predefined temperature so heat conduction from the pump housing to the cooling body is interrupted.
    Type: Application
    Filed: December 21, 2017
    Publication date: July 30, 2020
    Inventors: Michael Henry North, Phillip North, Malcolm William Gray, Neil Turner
  • Publication number: 20200124050
    Abstract: A twin-shaft pump comprising: a pumping chamber; two rotatable shafts each mounted on bearings is disclosed. Each of the two rotatable shafts comprises at least one rotor element, the rotor elements being within the pumping chamber and the two rotatable shafts extending beyond the pumping chamber to a support member. The support member comprises mounting means for mounting the bearings at a predetermined distance from each other, the predetermined distance defining a distance between the two shafts. A thermal break between the pumping chamber and the support member is provided for impeding thermal conductivity between the pumping chamber and the support member, such that the pumping chamber and support member can be maintained at different temperatures. The support member and the rotor elements are formed of different materials, a coefficient of thermal expansion of a material forming the support member being higher than a coefficient of thermal expansion of a material forming the rotor elements.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 23, 2020
    Applicant: Edwards Limited
    Inventors: Neil Turner, Phillip North, Michael Henry North, Malcolm William Gray, David Alan Turrell
  • Publication number: 20190336937
    Abstract: A blended composition when used for the removal of persistent organic pollutants persistent organic pollutants (POP) such as perfluorooctanesulfonate (PFOS) from water, the blended composition comprising Bauxsol and an additive wherein the additive is selected from activated carbon and an oxidizing agent. Also disclosed is a method of using the blended composition in the treatment of contaminated water.
    Type: Application
    Filed: December 5, 2017
    Publication date: November 7, 2019
    Inventors: Malcolm William CLARK, Daniel BLAIR, Brian SHEERAN, Gisela BARROS
  • Publication number: 20190170142
    Abstract: An enclosure system may be formed of a lightweight panel with a thin non-porous membrane that enables the extraction and leak detection of hazardous gases from housing equipment such as vacuum pumps, valves, abatement equipment and the like. Additionally, the enclosure system includes a one or multiple layers of wire mesh which prevent projectiles with a high kinetic energy from escaping from the housing equipment thereby minimising the risk of an explosion causing parts or panels to be ejected from the enclosure system.
    Type: Application
    Filed: August 19, 2017
    Publication date: June 6, 2019
    Inventor: Malcolm William Gray
  • Publication number: 20180372081
    Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Inventors: Ian David Stones, Malcolm William Gray, Iain David Port
  • Patent number: 10082134
    Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: September 25, 2018
    Assignee: Edwards Limited
    Inventors: Ian David Stones, Malcolm William Gray, Iain David Port
  • Patent number: 9414790
    Abstract: A CT scanning apparatus includes a control apparatus arranged to cause a first rotation of a gantry and trigger an x-ray source to emit x-radiation at a first x-ray energy when an angular encoder reports that the gantry is at each of multiple predetermined angular locations, and cause a second rotation of the gantry and trigger the x-ray source to emit x-radiation at a second x-ray energy differing from the first x-ray energy when the angular encoder reports that the gantry is at each of the same predetermined angular locations. An image processing means receives the projection images and reconstructs them into a volumetric image. A support couch is provided for the patient, and to minimize the likelihood of movement artifacts, the support couch includes a patient immobilisation system such as an evacuatable bead bag, bite post, or stereotactic frames, or the like.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: August 16, 2016
    Assignee: Elekta AB (Publ)
    Inventor: Malcolm Williams
  • Patent number: 9398940
    Abstract: An oral care implement generates cavitation within the oral cavity. One or more cavitation cleaning elements may be located in the head area of the oral care implement. The cavitation cleaning element vibrates at a frequency that produces cavitation of fluids within the oral cavity. The oral care implement may include an elastomeric cavitation cleaning element. A cleaning element may be configured to vibratory release an oral care substance from a container; and a body for gripping the implement.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 26, 2016
    Assignee: COLGATE-PALMOLIVE COMPANY
    Inventors: James Herbert Kemp, Malcolm Williams
  • Patent number: 9334863
    Abstract: A pump includes a plurality of pumping stages comprising a respective plurality of pumping mechanisms driven by one or more drive shafts for pumping fluid through the pumping stages from a pump inlet at a high vacuum stage to a pump outlet at a low vacuum stage; a lubrication chamber housing a bearing assembly for supporting the drive shaft for rotational movement, the drive shaft extending from the high vacuum stage to the lubrication chamber through an opening of a head plate of the lubrication chamber; an inter-stage purge port through which gas can enter the pump at an inter-stage location downstream of the high vacuum; a lubrication chamber purge port located in the lubrication chamber through which purge gas can flow from a source of purge gas; wherein the inter-stage port is connected to the lubrication chamber for controlling the pressure of purge gas in the lubrication chamber.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: May 10, 2016
    Assignee: Edwards Limited
    Inventors: Philip John Stephens, Ian David Stones, Malcolm William Gray, Paul David Neller
  • Publication number: 20150377226
    Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.
    Type: Application
    Filed: January 28, 2014
    Publication date: December 31, 2015
    Inventors: Ian David Stones, Malcolm William Gray, Iain David Port
  • Patent number: 9215258
    Abstract: Described is a method for administering an online conference. The method includes receiving an electronic communication from a conference participant. A group is determined to be associated with the conference participant. An action is performed on the conference participant based on the group association.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 15, 2015
    Assignee: International Business Machines Corporation
    Inventors: David Louis Kaminsky, Malcolm William Kilmer, David M. Ogle
  • Patent number: 9118734
    Abstract: Described is a conference management system for administering an online conference. The conference management system receives an electronic communication from a conference participant. A group is determined to be associated with the conference participant. An action is performed on the conference participant based on the group association.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 25, 2015
    Assignee: International Business Machines Corporation
    Inventors: David Louis Kaminsky, Malcolm William Kilmer, David M. Ogle
  • Patent number: 9004891
    Abstract: A pair of Northey rotors for a vacuum pump, in which each rotor comprises two opposing, substantially parallel faces, and a peripheral surface located between the opposing faces. In order to reduce damage caused by pumping a gas stream containing liquid or solid particulates, a plurality of grooves is located on the peripheral surface for accommodating the particulates.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: April 14, 2015
    Assignee: Edwards Limited
    Inventors: Neil Turner, Malcolm William Gray, Jack Raymond Tattersall
  • Publication number: 20150037187
    Abstract: The present invention relates to a multi-stage vacuum pump which has a plurality of pumping stages. The pump comprises a stator forming the pumping chambers of respective pumping stages and at least one shaft, for supporting a plurality of rotors for rotation in respective pumping chambers. The stator comprises: a stator envelope which extends over an axial extent of a plurality of stator stages thereby circumscribing said at least one shaft and forming an internal profile of a plurality of stator stages: and a plurality of transverse walls located on either axial side of the stator stages to form respective said pumping chambers. At least one of the transverse walls is an inter-stage between stator stages and the stator envelope is configured to circumscribe the inter-stage for location of said inter-stage radially inward of the stator part.
    Type: Application
    Filed: January 29, 2013
    Publication date: February 5, 2015
    Inventors: Neil Turner, Jack Raymond Tattersall, Paul David Neller, Malcolm William Gray
  • Publication number: 20140275707
    Abstract: The present invention relates to the field of radiation therapy. In particular, the invention concerns systems and methods for monitoring intra-fraction motions of patients in connection with treatment cancer in radiation therapy system. A patient marker is attached on the nose of the patient and images of the patient marker and reference markers is captured at predetermined time intervals. The reference markers are arranged in defined positions relative to a patient fixation arrangement for fixation of the patient during treatment. A position of the patient marker relative the reference markers is determined based on images captured by an optical tracking system, wherein changes in the position provide information if the patient or a part of the patient has moved.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Elekta AB Publ.
    Inventors: Mattias LIDSTRÖM, Malcolm Williams, Bartosz Gorka, Rui Chen, Thomas Arn
  • Publication number: 20140275698
    Abstract: The present invention relates to the field of radiation therapy. In particular, the invention concerns systems and methods for monitoring intra-fraction motions of patients in connection with treatment cancer in radiation therapy system. A patient marker is attached on the nose of the patient and images of the patient marker and reference markers of a reference tool is captured at predetermined time intervals, wherein the reference tool comprises reference markers and is arranged in a defined position relative to a patient fixation arrangement for fixation of the patient during treatment. A position of the patient marker relative the reference tool is determined based on images captured by an optical tracking system, wherein changes in the position provide information if the patient or a part of the patient has moved.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: ELEKTA AB (PUBL)
    Inventors: Mattias LIDSTRÖM, Malcolm WILLIAMS, Bartosz GORKA, Rui CHEN, Thomas ARN
  • Publication number: 20140259471
    Abstract: An oral care implement generates cavitation within the oral cavity. One or more cavitation cleaning elements may be located in the head area of the oral care implement. The cavitation cleaning element vibrates at a frequency that produces cavitation of fluids within the oral cavity. The oral care implement may include an elastomeric cavitation cleaning element. A cleaning element may be configured to vibratory release an oral care substance from a container; and a body for gripping the implement.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: Colgate-Palmolive Company
    Inventors: James Herbert Kemp, Malcolm Williams
  • Publication number: 20140213904
    Abstract: The present invention relates to the field of radiation therapy. In particular, the invention concerns systems and methods for monitoring intra-fraction motions of patients in connection with treatment cancer in radiation therapy system. Ultrasound waves are generated in a direction of a bone or a part of a bone of the patient being in a fixed relation to a cancer tumor to be treated by radiation therapy such that the generated ultrasound waves are reflected by the bone or part of bone using an ultrasonic transducer and sensing the reflected ultrasound waves at least one ultrasonic transducer. Time intervals between generated ultrasound waves and corresponding sensed reflected ultrasound signals are determined for the at least one ultrasonic transducer. Based on the time intervals, motions of the bone or part of bone are monitored using changes of the time intervals, wherein the motions indicate that the patient or a part of the patient has moved.
    Type: Application
    Filed: August 26, 2011
    Publication date: July 31, 2014
    Applicant: ELEKTA AB (PUBL)
    Inventors: Rui Chen, Malcolm Williams