Patents by Inventor David Levett

David Levett 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: 8760855
    Abstract: A high power drive stack system is provided which includes a cabinet having a vaporizable dielectric fluid cooling system and a plurality of receivers for accepting a plurality of modules containing power electronics. The modules are removably attachable to the receivers by at least two non-latching, dry-break connectors. Each of the at least two connectors providing both a fluid connection and an electrical connection between the cabinet and the module.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: June 24, 2014
    Assignee: Parker Hannifin Corporation
    Inventors: Jeremy Charles Howes, David Levett
  • Patent number: 8305760
    Abstract: A high power drive stack system is provided which includes a cabinet (20) having a vaporizable dielectric fluid cooling system (110) and a plurality of receivers (22) for accepting a plurality of modules (30) containing power electronics. The modules are removably attachable to the receivers by at least two non-latching, dry-break connectors (210). Each of the at least two connectors providing both a fluid connection and an electrical connection between the cabinet and the module.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: November 6, 2012
    Assignee: Parker-Hannifin Corporation
    Inventors: Jeremy Charles Howes, David Levett
  • Patent number: 8094435
    Abstract: A power drive stack system comprises a series of power electronic modules, each one of the modules containing power components and module contacts electrically and mechanically aligned for building a portion of a complete AC/DC drive stack. The modules utilize a common set of circuit connection points that are matched to a common set of physical connection points. The modules can be plugged together like building blocks to form a large variety of AC/DC drive stacks that can be tailored to meet an exact system requirement. The drive stack may be used in conjunction with a controller to adjust the torque and speed of an AC/DC electric motor.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: January 10, 2012
    Assignee: Parker-Hannifin Corporation
    Inventors: Jeremy Howes, David Levett, John Froeb
  • Publication number: 20110013364
    Abstract: A high power drive stack system is provided which includes a cabinet (20) having a vaporizable dielectric fluid cooling system (110) and a plurality of receivers (22) for accepting a plurality of modules (30) containing power electronics. The modules are removably attachable to the receivers by at least two non-latching, dry-break connectors (210). Each of the at least two connectors providing both a fluid connection and an electrical connection between the cabinet and the module.
    Type: Application
    Filed: May 18, 2009
    Publication date: January 20, 2011
    Inventors: Jeremy Charles Howes, David Levett
  • Publication number: 20070258219
    Abstract: A power drive stack system comprises a series of power electronic modules, each one of the modules containing power components and module contacts electrically and mechanically aligned for building a portion of a complete AC/DC drive stack. The modules utilize a common set of circuit connection points that are matched to a common set of physical connection points. The modules can be plugged together like building blocks to form a large variety of AC/DC drive stacks that can be tailored to meet an exact system requirement. The drive stack may be used in conjunction with a controller to adjust the torque and speed of an AC/DC electric motor.
    Type: Application
    Filed: May 3, 2007
    Publication date: November 8, 2007
    Applicant: PARKER-HANNIFIN CORPORATION
    Inventors: Jeremy Howes, David Levett, John Froeb
  • Publication number: 20070220550
    Abstract: The present invention is directed to a system and method for delivering advertisement messages to mobile communication devices. Specifically, in accordance with a preferred embodiment, advertisement messages are sent to mobile communication device in advance of a time an date on which the advertisement messages are to be presented on the mobile communication device. At the same time, signalling information is sent to the mobile communication devices for indicating to the mobile communication devices the time and date at which the advance sent advertisement messages are to be presented on the mobile communication device. The signalling information may include triggering events at which the advertisement message is to be presented.
    Type: Application
    Filed: October 6, 2006
    Publication date: September 20, 2007
    Inventors: Mikael Ljungman, Hacan Akerberg, David Levett
  • Publication number: 20070196806
    Abstract: The present invention is directed to a system and method for selectively delivering multimedia content, such as sports highlights, a video clip, or a movie, to a mobile communication device, such as a cellular telephone, a laptop computer, or a personal digital assistant. In particular, a content service provider receives multimedia content from a variety of content providers, such as television broadcasters, Internet website operators, or individual users, and categorizes the content in accordance with certain predetermined criteria. At the same time, the content service provider receives, from various different mobile communication devices, a preference to receive certain category of multimedia content.
    Type: Application
    Filed: October 6, 2006
    Publication date: August 23, 2007
    Inventors: Mikael Ljungman, Hacan Akerberg, David Levett
  • Publication number: 20070153910
    Abstract: The preferred embodiments of the present invention relates to the preparation and delivery of media content from a source to a remote device, and the use of the remote device to re-construct, format, composite, convert and/or otherwise pre-process the content into a suitable form for presentation/playback. In particular it relates to audio and/or visual content that may be delivered in a piecemeal, disjoint, complex and/or highly compressed form to a remote mobile device such as a mobile phone where such a device may not have the capability to adequately present the content in its delivered form without further pre-processing due to insufficient on-board processing power or format incompatibilities. The present invention also allows for media content to be reconstituted for presentation in a variety of ways without the need to re-deliver the entire content each time.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 5, 2007
    Inventor: David Levett
  • Publication number: 20050021838
    Abstract: A method of routing data from a source to one or more clients over a network, where the data conforms to a structured meta-language; in which the routing is performed by a server applying rules to the data itself, and not any address accompanying the data, to determine where to route that data to. The present invention is predicated on the counter-intuitive insight that data does not need to be concealed within a data envelope and given an address label in order to be routed effectively and efficiently. Instead, routing can be performed on the actual content of a message by applying simple routing rules to the data itself by intelligent ‘routing’ servers within the network which can unpack data from their message envelopes and intelligently filter/combine them with data unpacked from other messages to achieve a routing function.
    Type: Application
    Filed: December 9, 2002
    Publication date: January 27, 2005
    Inventor: David Levett