Patents by Inventor David Wilkie

David Wilkie 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: 7578715
    Abstract: A recreational water board for towing a person behind a water craft on or below the surface of the water. The board includes a substantially planar structure with a pair of wings on either side of a central axis of symmetry. Each wing has a leading edge and a trailing edge, the leading edge being swept-back to give the board a hydro-dynamically contoured profile. The board also includes handgrips to enable the board to be firmly gripped while being towed, and pairs of apertures arranged symmetrically on either side respectively of a central board axis for attaching a tow bridle to the board. The pairs of apertures define a pivot axis, perpendicular to the central axis, about which the board may be tilted to enable the user to dive or resurface in the water, depending on the direction of tilt.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: August 25, 2009
    Assignee: Polyline Industries Pty. Ltd.
    Inventor: David Wilkie
  • Publication number: 20080269546
    Abstract: The invention emulates the operation of a healthy urethra by providing a valve with a large differential between the opening pressure and the closing pressure. The differential is achieved by using a snap action created by the action of the urine flow on a force that drops off rapidly with displacement. A preferred way to achieve such as force is by using permanent magnets. The valve is installed simply by insertion into the urethra and can easily be removed. No surgical procedure is involved.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 30, 2008
    Inventors: David Wilkie, Daniel Gelbart
  • Publication number: 20080248702
    Abstract: A recreational water board for towing a person behind a water craft on or below the surface of the water. The board includes a substantially planar structure with a pair of wings on either side of a central axis of symmetry. Each wing has a leading edge and a trailing edge, the leading edge being swept-back to give the board a hydrodynamically contoured profile. The board also includes handgrips to enable the board to be firmly gripped while being towed, and pairs of apertures arranged symmetrically on either side respectively of a central board axis for attaching a tow bridle to the board. The pairs of apertures define a pivot axis, perpendicular to the central axis, about which the board may be tilted to enable the user to dive or resurface in the water, depending on the direction of tilt.
    Type: Application
    Filed: February 25, 2005
    Publication date: October 9, 2008
    Applicant: POLYLINE INDUSTRIES PTY. LTD.
    Inventor: David Wilkie
  • Publication number: 20070133310
    Abstract: An integrated circuit digital device is coupled to a memory with a single-node data, address and control bus. The memory may be a non-volatile memory and/or volatile memory. The memory may be packaged in a low pin count integrated circuit package. The memory integrated circuit package may have a ground terminal, VSS; a power terminal, VDD or VCC; and a bidirectional serial input-output (I/O) terminal, SCIO. Memory block address set-up may be performed via software instructions through the SCIO terminal. In addition, hardwired memory block address selection terminals A0 and A1 may be used when more then three terminals are available on the memory integrated circuit package. The memory may have active pull-up and pull-down drivers coupled to the single-node data, address and control bus.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Peter Sorrells, David Wilkie, Christopher Parris, Martin Kvasnicka, Martin Bowman
  • Patent number: 6880809
    Abstract: A separating device that includes a wedge that extends between first and second plates, with at least one of the plates being supported by a support device such as a bar. The support device supports the or each plate while the device is in use so that the plate(s) are substantially prevented from bending or twisting due to the forces applied to the plate(s).
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: April 19, 2005
    Assignee: Future Alignments Limited
    Inventors: Robert Stephen, David Wilkie
  • Publication number: 20030151035
    Abstract: The present invention relates to a separating device (1, 100) that includes a wedge (30, 130) that extends between first and second plates (10, 110, 20, 120). At least one of the plates (10, 110, 20, 120) is supported by a support device (e.g. a bar 31). The support device supports the or each plate (10, 110, 20, 120) whilst the device (10, 110, 20, 120) is in use so that the plate(s) (10, 110, 20, 120) are substantially prevented from bending or twisting due to the forces applied to the plate(s) (10, 110, 20, 120).
    Type: Application
    Filed: February 7, 2003
    Publication date: August 14, 2003
    Inventors: Robert Stephen, David Wilkie
  • Patent number: 6463137
    Abstract: The present invention is a method and device for toll-free telephonic communications. According to a method of the present invention, a caller dials a toll-free number to establish a connection with a telecommunications platform. The caller then enters an authorization code that the telecommunications platform validates. If the authorization code is valid, the telecommunications platform can connect the caller to a called party or record a message by the caller for later retrieval by the called party.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: October 8, 2002
    Assignee: Geo-Group Communications, Inc.
    Inventors: Govind W. Vanjani, David Wilkie
  • Patent number: D944156
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: February 22, 2022
    Assignees: Nikola Corporation, Iveco S.P.A.
    Inventors: Erik Tuft, Guiseppe Bruno, Marco Armigliato, David Wilkie