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).
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Publication number: 20140275707Abstract: 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: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: Elekta AB Publ.Inventors: Mattias LIDSTRÖM, Malcolm Williams, Bartosz Gorka, Rui Chen, Thomas Arn
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Publication number: 20140259471Abstract: 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: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Applicant: Colgate-Palmolive CompanyInventors: James Herbert Kemp, Malcolm Williams
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Publication number: 20140275698Abstract: 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: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: ELEKTA AB (PUBL)Inventors: Mattias LIDSTRÖM, Malcolm WILLIAMS, Bartosz GORKA, Rui CHEN, Thomas ARN
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Publication number: 20140213904Abstract: 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: ApplicationFiled: August 26, 2011Publication date: July 31, 2014Applicant: ELEKTA AB (PUBL)Inventors: Rui Chen, Malcolm Williams
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Patent number: 8747005Abstract: 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: GrantFiled: June 4, 2008Date of Patent: June 10, 2014Assignee: Colgate-Palmolive CompanyInventors: James Herbert Kemp, Malcolm Williams
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Publication number: 20140105352Abstract: 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: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: ELEKTA AB (PUBL)Inventor: Malcolm Williams
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Patent number: 8683997Abstract: A portable ventilator uses a ROOTS-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the ROOTS-type blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.Type: GrantFiled: October 31, 2007Date of Patent: April 1, 2014Assignee: CareFusion 203, Inc.Inventors: Douglas F. DeVries, David Boyle, Michael Holmes, Malcolm Williams
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Patent number: 8677995Abstract: A method and apparatus for controlling a brushless DC (BLDC) motor over a wide range of angular speeds is presented. Analog magnetic sensors provide continuous signal measurements related to the rotor angular position at a sample rate independent of rotor angular speed. In one embodiment, analog signal measurements are subsequently processed using an arctangent function to obtain the rotor angular position. The arctangent may be computed using arithmetic computation, a small angle approximation, a polynomial evaluation approach, a table lookup approach, or a combination of various methods. In one embodiment, the BLDC rotor is used to drive a Roots blower used as a compressor in a portable mechanical ventilator system.Type: GrantFiled: October 23, 2007Date of Patent: March 25, 2014Assignee: CareFusion 203, Inc.Inventors: David Boyle, Michael Holmes, Malcolm Williams
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Patent number: 8627819Abstract: A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the Roots blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.Type: GrantFiled: June 2, 2006Date of Patent: January 14, 2014Assignee: CareFusion 203, Inc.Inventors: Douglas F. DeVries, David Boyle, Michael Holmes, Malcolm Williams
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Patent number: 8522780Abstract: A portable ventilator uses a ROOTS-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the ROOTS-type blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.Type: GrantFiled: March 1, 2007Date of Patent: September 3, 2013Assignee: CareFusion 203, Inc.Inventors: Douglas F. DeVries, David Boyle, Michael Holmes, Malcolm Williams
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Patent number: 8297279Abstract: A portable ventilator uses a ROOTS-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the ROOTS-type blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.Type: GrantFiled: June 2, 2006Date of Patent: October 30, 2012Assignee: CareFusion 203, Inc.Inventors: Douglas F. DeVries, David Boyle, Michael Holmes, Malcolm Williams
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Publication number: 20120269742Abstract: An orally consumable film composition for delivering breath freshening agents to the oral cavity which is rapidly dissolvable or dispersible in the oral cavity, the composition being comprised of a homogeneous mixture of a water dispersible film forming polymer and an enzyme.Type: ApplicationFiled: June 26, 2012Publication date: October 25, 2012Applicant: COLGATE-PALMOLIVE COMPANYInventors: Lori H. Szeles, Sonya Mohseni, Guofeng Xu, Malcolm Williams, David B. Viscio, James G. Masters
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Publication number: 20120251368Abstract: The present invention provides a positive displacement dry pump comprising: a plurality of vacuum pumping stages comprising a respective plurality of pumping mechanisms driven by one or more drive shafts for pumping fluid in series through the pumping stages from a pump inlet at the high vacuum stage to a pump outlet at the 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 stage and pass only through the or each vacuum pumping stage downstream of the inter-stage port; 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 tType: ApplicationFiled: November 23, 2010Publication date: October 4, 2012Applicant: EDWARDS LIMITEDInventors: Philip John Stephens, Ian David Stones, Malcolm William Gray, Paul David Neller
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Publication number: 20120246234Abstract: 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: ApplicationFiled: June 7, 2012Publication date: September 27, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: David Louis Kaminsky, Malcolm William Kilmer, David M. Ogle
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Publication number: 20120141388Abstract: An abrasive dentifrice composition which effects enhanced antiplaque and breath freshening properties which comprises an orally acceptable vehicle containing a combination of a safe and effective amount of an antibacterial agent and at least two enzyme ingredients.Type: ApplicationFiled: February 14, 2012Publication date: June 7, 2012Applicant: COLGATE-PALMOLIVE COMPANYInventors: Lori H. Szeles, Xiaoyan Liu, Malcolm Williams, M. Teresa R. Carale, Michael Prencipe, James G. Masters
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Publication number: 20120140681Abstract: Described are a conference management system and method 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: ApplicationFiled: December 7, 2010Publication date: June 7, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: David Louis Kaminsky, Malcolm William Kilmer, David M. Ogle
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Patent number: 8156937Abstract: A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of a noise attenuating system comprising noise reducing pressure compensating orifices on the Roots blower housing and multiple noise reducing chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.Type: GrantFiled: September 23, 2005Date of Patent: April 17, 2012Assignee: CareFusion 203, Inc.Inventors: Douglas F. DeVries, David Boyle, Michael Holmes, Malcolm Williams
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Patent number: 8154435Abstract: A stability monitoring system is described that provides an accurate, automated, and remote way of monitoring small movements over a large surface area without the need to pre-place reflective targets using a mobile SAR. The stability monitoring system allows the rapid, automated identification and measurement of small surface movements over a wide field of view from a safe standoff distance without the need for personnel working in hazardous zones. Using this data, authorities can more accurately identify hazard areas and efficiently allocate mitigation resources.Type: GrantFiled: August 22, 2008Date of Patent: April 10, 2012Assignee: Microsoft CorporationInventors: Todd Pett, John D. Paden, John Curlander, Lawrence Brewster, Malcolm William Ashby, II, Xiaoqing Wu
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Patent number: 8128911Abstract: An abrasive dentifrice composition which effects enhanced antiplaque and breath freshening properties which comprises an orally acceptable vehicle containing a combination of a safe and effective amount of an antibacterial agent and at least two enzyme ingredients.Type: GrantFiled: May 10, 2002Date of Patent: March 6, 2012Assignee: Colgate-Palmolive CompanyInventors: Lori H. Szeles, Xiaoyan Liu, Malcolm Williams, M. Teresa R. Carale, Michael Prencipe, James G. Masters
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Publication number: 20120045401Abstract: The present invention provides an oral composition comprising a polymer, preferably a copolymer of methyl vinyl ether and maleic anhydride, attached to a sweetening agent via a cleavable linker, comprising a covalent bond, preferably an ester bond or an amide bond wherein the polymer is capable of attaching to a surface in an oral cavity, and the cleavable linker is cleavable in the oral cavity to release the sweetening agent.Type: ApplicationFiled: May 18, 2009Publication date: February 23, 2012Applicant: Colgate-Palmolive CompanyInventors: Shira Pilch, Malcolm Williams