Patents by Inventor David March

David March 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: 20190151605
    Abstract: A package for a medical device such as an intermittent catheter has a case which is closed at one end and open at the other end. A cap is connected to the case by a hinge to permit selectable movement of the cap between an open position, wherein access is provided to the open end of the case, and a closed position, wherein the cap prevents access to the open end of the case. A seal is connected to one of the cap and case. The seal is engageable with the other of the cap and case when the cap is closed to form a barrier that maintains a sterile environment inside the package. The seal can be repeatedly made and broken whenever the user closes or opens the cap, respectively. The case includes a pair of slots at the open end. A pair of latches are formed in the cap. The latches fit into the slots to prevent lateral forces from distorting the cap when the cap is closed.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 23, 2019
    Inventors: Martin McMenamin, Daniel E. O'Brien, Vincent Naughton, Joseph N. Hanley, David A. Knauz, Martin P. Creaven, Stephen Collum, Jeanne E. Lee, Siobhan Duffy, Marine Veronique Richard, Eugene Canavan, Scott J. Pupino, Kieran J. McFadden, Claire O'Grady, Daniel A. March
  • Patent number: 8764499
    Abstract: An amphibious vehicle achieves a stable ride, maneuverability, and high speed. The vehicle includes a hull having a “V” center portion with outboard sponsons. The sponsons reside between the front wheel wells and the rear wheels wells for improving lift and transition to planing. Shallow tunnels begin in rear portions of the front wheel wells and taper into the sponsons to release water trapped in the wheel wells. Inward facing turning edges also reside between the front and rear wheel wells and improve in-water handling. Wheels are retractable by pneumatic cylinders in parallel with air shock absorbers and suspension cutout in the hull allow the suspension to lower through the hull. Flaps reside under suspension members and rise to cover the suspension cutouts when the wheels are retractable when the wheels are raised to reduce drag. A Morse cable couple a rack and pinion unit to a jet drive.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: July 1, 2014
    Inventor: J. David March
  • Patent number: 8498629
    Abstract: A software-defined radio includes an executable radio software system operable with a radio circuit and conforming to the software communications architecture (SCA) specification and defining an operating environment that allows a waveform application to operate with a radio circuit for transmitting and receiving voice and data. An extensible Human-Machine Interface (HMI) plugin module is operable for allowing a selected waveform application to integrate with the radio circuit and provide an HMI user interface.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: July 30, 2013
    Assignee: Harris Corporation
    Inventors: David March, Glen Dragon, Christopher Page, Michael E. Wilkerson-Barker
  • Patent number: 8443158
    Abstract: A mobile wireless communications device may include a wireless transceiver, a series of processing modules, a shared memory connected the plurality of processing modules and to the wireless transceiver, and a memory manager module for generating respective data location indices for data stored in the shared memory. The processing modules may cooperate with the shared memory and the memory manager module so that an upstream processing module stores given data in the shared memory, and so that a downstream processing module receives the data location index for the stored given data and processes the stored given data based thereon. The device may further include a security module for selectively purging data from the shared memory.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: May 14, 2013
    Assignee: Harris Corporation
    Inventors: Travis Brown, David March, Lloyd Palum
  • Patent number: 8221174
    Abstract: An amphibious vehicle achieves a stable ride, maneuverability, and high speed. The vehicle includes a hull having a “V” center portion with outboard sponsons. The sponsons reside between the front wheel wells and the rear wheels wells for improving lift and transition to planing. Shallow tunnels begin in rear portions of the front wheel wells and taper into the sponsons to release water trapped in the wheel wells. Inward facing turning edges also reside between the front and rear wheel wells and improve in-water handling. Wheels are retractable by pneumatic cylinders in parallel with air shock absorbers and suspension cutout in the hull allow the suspension to lower through the hull. Flaps reside under suspension members and rise to cover the suspension cutouts when the wheels are retractable when the wheels are raised to reduce drag. A Morse cable couple a rack and pinion unit to a jet drive.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: July 17, 2012
    Inventor: J. David March
  • Patent number: 8050708
    Abstract: The option management approach for SDRs includes control of installation and/or access to waveform features and/or platform features. A software-defined radio may include an antenna, a radio transceiver coupled to the antenna, and at least one memory storing a master feature database including a plurality of selectable waveform features and a plurality of selectable platform features, and a selected options database including selected waveform features and selected platform features from the master feature database. A controller cooperates with the at least one memory to configure the selected options database based upon an input options file and to permit reconfiguration of the selected options database based upon a subsequent input options file. The controller also cooperates with the radio transceiver and the selected options database to operate the SDR based upon the selected waveform features and the selected platform features.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 1, 2011
    Assignee: Harris Corporation
    Inventors: David March, Tibor Dobri, Mark Sanders
  • Patent number: 7689207
    Abstract: A software-defined radio includes a pair of radio subsystems such as a red (command) and black (data) radio subsystem having an operating environment conforming to the Software Communications Architecture (SCA) specification, for example, as used for Joint Tactical Radio System (JTRS). A clock is read by at least one of the radio subsystems for determining time of day. A processor of the radio subsystem is operative for distributing the time of day to the radio subsystems using a global hardware timing pulse. Each processor can include a free-running timer to which any time sources within the pair of radio subsystems are set.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: March 30, 2010
    Assignee: Harris Corporation
    Inventors: David Hinterberger, Lloyd Palum, Nicholas Stocks, David March, Terence W. O'Brien, Thomas Philbin
  • Publication number: 20090061702
    Abstract: An amphibious vehicle achieves a stable ride, maneuverability, and high speed. The vehicle includes a hull having a “V” center portion with outboard sponsons. The sponsons reside between the front wheel wells and the rear wheels wells for improving lift and transition to planing. Shallow tunnels begin in rear portions of the front wheel wells and taper into the sponsons to release water trapped in the wheel wells. Inward facing turning edges also reside between the front and rear wheel wells and improve in-water handling. Wheels are retractable by pneumatic cylinders in parallel with air shock absorbers and suspension cutout in the hull allow the suspension to lower through the hull. Flaps reside under suspension members and rise to cover the suspension cutouts when the wheels are retractable when the wheels are raised to reduce drag. A Morse cable couple a rack and pinion unit to a jet drive.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 5, 2009
    Inventor: J. David March
  • Publication number: 20080253434
    Abstract: The option management approach for SDRs includes control of installation and/or access to waveform features and/or platform features. A software-defined radio may include an antenna, a radio transceiver coupled to the antenna, and at least one memory storing a master feature database including a plurality of selectable waveform features and a plurality of selectable platform features, and a selected options database including selected waveform features and selected platform features from the master feature database. A controller cooperates with the at least one memory to configure the selected options database based upon an input options file and to permit reconfiguration of the selected options database based upon a subsequent input options file. The controller also cooperates with the radio transceiver and the selected options database to operate the SDR based upon the selected waveform features and the selected platform features.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 16, 2008
    Applicant: Harris Corporation
    Inventors: David March, Tibor Dobri, Mark Sanders
  • Publication number: 20070094463
    Abstract: A mobile wireless communications device may include a wireless transceiver, a series of processing modules, a shared memory connected the plurality of processing modules and to the wireless transceiver, and a memory manager module for generating respective data location indices for data stored in the shared memory. The processing modules may cooperate with the shared memory and the memory manager module so that an upstream processing module stores given data in the shared memory, and so that a downstream processing module receives the data location index for the stored given data and processes the stored given data based thereon. The device may further include a security module for selectively purging data from the shared memory.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 26, 2007
    Applicant: Harris Corporation, Corporation of the State of Delaware
    Inventors: Travis Brown, David March, Lloyd Palum
  • Publication number: 20070087735
    Abstract: A software-defined radio includes an executable radio software system operable with a radio circuit and conforming to the software communications architecture (SCA) specification and defining an operating environment that allows a waveform application to operate with a radio circuit for transmitting and receiving voice and data. An extensible Human-Machine Interface (HMI)plugin module is operable for allowing a selected waveform application to integrate with the radio circuit and provide an HMI user interface.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 19, 2007
    Applicant: Harris Corporation
    Inventors: David March, Glen Dragon, Christopher Page, Michael Wilkerson-Barker
  • Publication number: 20070087734
    Abstract: A software-defined radio includes a pair of radio subsystems such as a red (command) and black (data) radio subsystem having an operating environment conforming to the Software Communications Architecture (SCA) specification, for example, as used for Joint Tactical Radio System (JTRS). A clock is read by at least one of the radio subsystems for determining time of day. A processor of the radio subsystem is operative for distributing the time of day to the radio subsystems using a global hardware timing pulse. Each processor can include a free-running timer to which any time sources within the pair of radio subsystems are set.
    Type: Application
    Filed: October 17, 2005
    Publication date: April 19, 2007
    Applicant: HARRIS CORPORATION
    Inventors: David Hinterberger, Lloyd Palum, Nicholas Stocks, David March, Terence O'Brien, Thomas Philbin
  • Publication number: 20050054228
    Abstract: For heating a pipe-in-pipe pipeline with power provided through an electric cable, mid-line connector is provided including: a connector housing joinable to the outer pipe of the pipeline; a blank pipe positioned within the connector housing and joinable to the inner pipe of the pipeline; at least one pocket mounted in the connector housing, wherein the cable is mateable with the at least one pocket; a blank pipe conductor electrically coupled between the at least one pocket and the blank pipe; and an outer pipe conductor electrically coupled between the at least one pocket and the outer pipe.
    Type: Application
    Filed: April 29, 2004
    Publication date: March 10, 2005
    Inventor: David March
  • Patent number: 6808430
    Abstract: An amphibious vehicle which on land looks remarkably like a conventional automobile. The wheels may be raised when the vehicle is in the water. The engine is placed in the stern, directly over the jet and transaxle, which provides room for four passengers. The vehicle has plates which slide under the wheels for use in water, and the plates do not extend up over the sides of the wheel wells.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: October 26, 2004
    Inventor: J. David March
  • Patent number: 5313846
    Abstract: A sample introduction valve for spectrometers for selectively directing sample flow from two or more sources in which a slideably mounted shuttle provides in one position a pass through for one source and a by-pass for the other source and in a second position the opposite result.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: May 24, 1994
    Assignee: Leeman Labs Inc.
    Inventors: David A. March, Peter G. Brown, David A. Hotham
  • Patent number: 4785944
    Abstract: A display and dispensing device includes a collapsible cardboard rack having a rear wall and hinged side walls provided with vertically spaced longitudinal recesses delineating forwardly projecting pairs of arms having track delineating top edges and cross pieces extending between and hinged at their opposite ends to the front ends of the arms of each pair. A shelf member having side channels slidably engaging each pair of tracks is supported by each pair of arms and has a rearwardly projecting apertured tab projecting through a respective opening in the rack rear wall and interlocked with a tongue located in the opening.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: November 22, 1988
    Assignee: Thomson-Leeds Company, Inc.
    Inventor: David March
  • Patent number: 4776552
    Abstract: A collapsible book rest includes a first panel having a transversely medially located rectangular opening and divided into similar side sections by a medially longitudinally extending self hinge, a rectangular second panel self hinged to the rear edge of the opening and divided into side by side and end to end sections by a transverse self hinge and a medial longitudinal self hinge colinear with the first panel longitudinal hinge. Follower slides project transversely from the front corners of the second panel and slidably engage tracks along the opening side edges and separably engage detents along the track to releasably lock the first panel sections in coplanar positions and the second panel in a depending dihedral defining position.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: October 11, 1988
    Assignee: Thomson Leeds, Co.
    Inventor: David March
  • Patent number: D285758
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: September 23, 1986
    Assignee: Thomson Leeds Company Inc.
    Inventor: David March
  • Patent number: D298501
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: November 15, 1988
    Assignee: Thomson Leeds Company, Inc.
    Inventor: David March
  • Patent number: D314091
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: January 29, 1991
    Assignee: Thomson-Leeds Company, Ltd.
    Inventor: David March