Patents by Inventor David A. Summers

David A. Summers 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).

  • Publication number: 20180274487
    Abstract: An ignition device for initiating a fuel burn includes a fuel mass, wherein the fuel mass has a target body disposed therein to be heated, and a heating element, where the heating element provides an alternating magnetic field about the target body upon activation thereof to cause the target body to heat sufficiently to initiate during of at least a part of the fuel mass adjacent the target body.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 27, 2018
    Inventors: David Summers, Michael J. Malloy
  • Publication number: 20180187316
    Abstract: An undivided electrolysis cell for electrolyzing a liquor is disclosed which has a narrow gap between the electrodes and improved energy efficiency. The electrolysis cell comprises a porous anode, a porous cathode, and an electrically insulating separator therebetween which are all permeable to the liquor. Electrolysis is performed while directing the liquor through the porous anode, the electrically insulating separator, and the porous cathode. Gas products generated during electrolysis are carried out with the liquor and do not remain between the electrodes thereby reducing “gas blinding”. The electrolysis cell is particularly suitable for chlorate electrolysis.
    Type: Application
    Filed: June 20, 2015
    Publication date: July 5, 2018
    Inventors: David Summers, Ian Bailey
  • Publication number: 20180105943
    Abstract: Sodium chlorate is produced industrially via electrolysis of brine and is thus an energy intensive process. An improved cathode for this and other industrial processes is a low nickel content stainless steel whose surface has been suitably modified. With an appropriate amount of surface roughening, the cathode provides for improved overvoltages during electrolysis while still maintaining corrosion resistance.
    Type: Application
    Filed: December 14, 2017
    Publication date: April 19, 2018
    Inventors: Paul Kozak, David Summers, Bin Lan
  • Publication number: 20150165381
    Abstract: Nanofiltration membranes have been identified that can unexpectedly provide for competitive removal of silica and sulfate from brine in alkaline conditions. Such membranes are known as monolithic nanofiltration membranes and are particularly suitable for removing silica and sulfate impurities from a brine stream in a brine electrolysis plant.
    Type: Application
    Filed: July 8, 2013
    Publication date: June 18, 2015
    Applicant: Chemetics Inc.
    Inventors: Felix Mok, Siamak Lashkari, Ganapathy Ramasubbu, Thomas Drackett, David Summers
  • Publication number: 20150090586
    Abstract: Sodium chlorate is produced industrially via electrolysis of brine and is thus an energy intensive process. An improved cathode for this and other industrial processes is a low nickel content stainless steel whose surface has been suitably modified. With an appropriate amount of surface roughening, the cathode provides for improved overvoltages during electrolysis while still maintaining corrosion resistance.
    Type: Application
    Filed: April 15, 2013
    Publication date: April 2, 2015
    Applicant: Chemetics Inc.
    Inventors: Paul Kozak, David Summers, Bin Lan
  • Patent number: 8858734
    Abstract: A method of superfinishing a large hollow wheel gear in a vibratory bowl having a center hub comprises at least partially filling the vibratory bowl with an amount of finishing media, laying the gear horizontally into the bowl over the center hub, supplying a quantity of an active chemistry into the bowl and agitating the vibratory bowl at a frequency such that the gear settles into and is fully supported by the media. By controlling the process parameters, the hollow wheel gear may be caused to rotate in the media and can be made to float at a desired level. The method is particularly suitable for hollow wheel gears for large wind turbines.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 14, 2014
    Assignee: REM Technologies, Inc.
    Inventors: Mark Michaud, Edward David Summers
  • Publication number: 20130282401
    Abstract: A system is provided for tracking and dispensing of prescription medication. A secure website is provided and a data communication link to a computer at each healthcare facility and pharmacy. Prescriptions are ordered from the healthcare facility computer, after which labels with machine readable code are generated by the pharmacy computer for each prescription container. A verification table is generated of all ordered prescriptions over a predetermined time to each respective healthcare facility, a reader scans the machine readable code of each prescription container, and the pharmacy computer verifies that all ordered prescriptions are sorted for delivery. The verification table of the verified prescriptions sorted for delivery is uploaded to a database.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 24, 2013
    Inventors: David Summers, Douglas M. Wright, JR., Mark Holley
  • Publication number: 20120209619
    Abstract: A system is provided for tracking and dispensing of prescription medication. A secure website is provided and a data communication link to a computer at each healthcare facility and pharmacy. Prescriptions are ordered from the healthcare facility computer, after which labels with machine readable code are generated by the pharmacy computer for each prescription container. A verification table is generated of all ordered prescriptions over a predetermined time to each respective healthcare facility, a reader scans the machine readable code of each prescription container, and the pharmacy computer verifies that all ordered prescriptions are sorted for delivery. The verification table of the verified prescriptions sorted for delivery is uploaded to a database.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 16, 2012
    Inventors: Larry E. Knotts, David Summers, Douglas M. Wright, JR.
  • Patent number: 8171637
    Abstract: Disclosed herein is a new improved large planetary gear system used on the input stage of wind turbine power generators. This improved planetary gear system reduces or eliminates lubricant debris traditionally generated from the gear teeth, thereby eliminating an initiating source for bearing failure. To achieve these results, some and preferably all of the gear teeth within the planetary gear system are superfinished using chemically accelerated vibratory finishing to a surface roughness of approximately 0.25 micron or less. Several objects and advantages of the invention are to provide a gearbox with reduced metal debris, improved bearing life, reduced wear, reduced vibro-frictional noise, improved contact fatigue, improved fretting resistance, improved lubrication, to simplify the run-in process, and to enhance the durability and efficiency of the gearbox.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 8, 2012
    Assignees: REM Technologies, Inc., OSRO GmbH
    Inventors: Mark Michaud, Edward David Summers
  • Patent number: 8109854
    Abstract: Disclosed herein is a new improved large planetary gear system used on the input stage of wind turbine power generators. This improved planetary gear system reduces or eliminates lubricant debris traditionally generated from the gear teeth, thereby eliminating an initiating source for bearing failure. To achieve these results, some and preferably all of the gear teeth within the planetary gear system are superfinished using chemically accelerated vibratory finishing to a surface roughness of approximately 0.25 micron or less. Several objects and advantages of the invention are to provide a gearbox with reduced metal debris, improved bearing life, reduced wear, reduced vibro-frictional noise, improved contact fatigue, improved fretting resistance, improved lubrication, to simplify the run-in process, and to enhance the durability and efficiency of the gearbox.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: February 7, 2012
    Assignees: REM Technologies, Inc., OSRO GmbH
    Inventors: Mark Michaud, Edward David Summers
  • Publication number: 20090126742
    Abstract: A tongue grasping and restraining device holds the tongue securely during sleep in order to minimize the risk of the tongue slipping back and blocking the throat, a condition known as obstructive sleep apnea. Plural tongue gripping projections are coupled to upper and lower supports. The projections engage and hold the tongue. The upper and lower supports are biased toward one another into a tongue engaging position. The upper support is coupled to the user's upper jaw, for example, to a denture, dental appliance or by upper teeth engaging mechanisms. The lower support can be hinged or otherwise joined to the upper support or can be separate therefrom. A tube and rod mechanism in one embodiment couples the upper and lower supports together. Exemplary methods of manufacturing tongue gripping projections are also disclosed.
    Type: Application
    Filed: November 17, 2007
    Publication date: May 21, 2009
    Inventor: John David Summer
  • Patent number: 7504665
    Abstract: A semiconductor optical device (e.g. a resonant cavity device in this form of an LED or a laser) comprises a single substrate arranged for emitting light (O) for incidence on a sample or other element and also responsive to light (D), e.g. of a different wavelenght, received back from this sample or other element: the device further comprises means for monitoring a characteristic (e.g. its current-voltage characteristic) which varies in dependence upon the light (D) received back from the sample or other element.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: March 17, 2009
    Assignee: University College Cardiff Consultants, Ltd.
    Inventor: Huw David Summers
  • Publication number: 20070277403
    Abstract: Embodiments of the invention provide a tracking system for a snow removal remote unit and crew. The tracking system of the invention is configured to interface with a GPS system to determine the location of a remote unit, and more particularly, to determine if the remote unit is operating at a removal location. If the removal unit is operating at a removal location, the tracking system of the invention is configured to track the time expended at the removal location conducting removal operations. Once the removal operations are completed at the removal location, the tracking system of the invention is configured to transmit the tracking data to a base location where the information may be used for accounting, billing, invoicing, and/or scheduling operations via transmission or interfacing of the data to other software processes configured to conduct these processes.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventor: Stephen David Summer
  • Publication number: 20070087233
    Abstract: A system and method for implementing a fuel cell shutdown process are disclosed. Briefly described, one embodiment comprises establishing an oxidant recirculation path from a portion of the cathode flow path upon initiation of the fuel cell shutdown process, wherein the oxidant is recirculated during an oxygen depletion phase to substantially deplete oxygen residing therein to form a substantially oxygen-free fluid; and establishing an anode purge path from a portion of the cathode flow path and the anode flow path by means of a diverter valve, wherein the anode purge path is established upon completion of the oxygen depletion phase, and wherein the substantially oxygen-free fluid is transferred to the anode flow path to substantially purge out the fuel therein during a hydrogen purge phase.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 19, 2007
    Inventors: Janusz Blaszczyk, David Summers, Anthony Cochrane, Andrew Henderson, Richard Fellows, Steven Houlberg, Michael Davis
  • Patent number: 7153598
    Abstract: A fuel cell system is operated with the fuel supply pressure greater than the oxidant supply pressure to the fuel cell. This gives improved performance particularly when the fuel cell system is closed on the fuel side. The magnitude of fuel overpressure may be varied in accordance with variations in the fuel cell operating parameters.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: December 26, 2006
    Assignee: Ballard Power Systems Inc.
    Inventors: David A. Summers, Herwig R. Haas
  • Publication number: 20050285463
    Abstract: Detailed are brush assemblies for electric motors. The assemblies may include lead frames to which leaded electrical components are mounted directly. The lead frames additionally may include two or more conductors and be positioned remote from the brushes of the assemblies.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 29, 2005
    Inventors: Shepard Hockaday, George Corn, David Summers, Pimol Vonkchalee
  • Publication number: 20050273177
    Abstract: A prosthesis includes suitable mechanical properties needed to open and maintain a vessel, duct, tract, or organ in a mammalian body. The prosthesis includes a pharmaceutical coating containing a pharmaceutical agent. The pharmaceutical agent is capable of acting upon and altering the mechanisms of biologic systems in a manner providing a medicinal therapy. The prosthesis includes at least one layer of the pharmaceutical coating overlaid by a permiable membrane.
    Type: Application
    Filed: June 7, 2004
    Publication date: December 8, 2005
    Inventors: David Summers, Diane Dottavio
  • Publication number: 20050089746
    Abstract: Contamination of the ion-exchange membrane in an electrochemical fuel cell can significantly reduce the lifetime. One source of contamination is from sealant materials, particularly if the sealant is silicone and impregnated into the peripheral region of the membrane electrode assembly (MEA) and thus in close proximity to the ion-exchange membrane. Contamination may be reduced or eliminated by separating the electrochemical reaction and/or the ion-exchange membrane from the sealant material. In an embodiment, this is done by having the sealing region substantially free of active electrocatalyst particles (for example, selectively printing the catalyst to avoid the sealing region or poisoning catalyst in the sealing region). In another embodiment, a barrier film is interposed between the ion-exchange membrane and the sealant material impregnated into the MEA. In yet another embodiment, a barrier plug is impregnated into the fluid diffusion layer adjacent to the sealant material impregnated into the MEA.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 28, 2005
    Applicant: Ballard Power Systems Inc.
    Inventors: Gregory James, Sean MacKinnon, Duarte Sousa, David Summers, Warren Williams, Julie Bellerive, Myles Bos, Robert Rempel, Simon Farrington, Scott McDermid
  • Publication number: 20040241504
    Abstract: A fuel cell system is operated with the fuel supply pressure greater than the oxidant supply pressure to the fuel cell. This gives improved performance particularly when the fuel cell system is closed on the fuel side. The magnitude of fuel overpressure may be varied in accordance with variations in the fuel cell operating parameters.
    Type: Application
    Filed: March 5, 2004
    Publication date: December 2, 2004
    Inventors: David A. Summers, Herwig R. Haas
  • Patent number: D1020369
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: April 2, 2024
    Inventor: David Summers