Patents by Inventor David F. Campbell

David F. Campbell 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: 20160087971
    Abstract: A method and system for generating identification and certification of e-licenses includes the use of software, applications and mobile devices such as smartphones. It is designed to issue and manage all kinds of permits, e-licenses or other documents intended for identification and certification of specific documents and permits in any defined area.
    Type: Application
    Filed: February 6, 2015
    Publication date: March 24, 2016
    Inventor: David F. Campbell
  • Patent number: 8825124
    Abstract: A protective smart-case for the interactive display of images, video, and audio via a capacitive touchscreen, on-board high capacity neodymium speaker, and laser pointer within the case itself is presented. Said case mounted touchscreen serves to actively display images and video stored in case memory, external memory, through USB and/or receive images from said smartphone or other external operating system (OS). Said images may be static or cycle through as a screen saver. Further the present invention would alleviate the need to purchase multiple smartphone cases “skins”, with printed pictures on the outer portion as the smart-case would be able to display any image or video and thus change any image as often as the user would desire. By utilizing the current protective smart-case the need for acquiring separate smartphone cases, peripheral laser pointer devices, and software programmable applications to extend the functionality of modern smartphone limitations may be avoided.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: September 2, 2014
    Inventors: Matthew P. Davies, David F. Campbell
  • Publication number: 20090165644
    Abstract: An air filter apparatus with a self-contained detachable programmable clogging indicator for use in forced air HVAC systems, air heaters, internal combustion engines, vacuum cleaners, medical devices, biomedical devices, inert atmosphere glove boxes, scientific equipment, etc. . . . and method of use is disclosed. The self contained detachable clogging indicator consists of downstream rotating vane anemometer to measure the air flowing through the filter as a means to accurately estimate the degree of filter clogging. A detachable user interface allows manipulation of the operating parameters and threshold limits and provides a means to alert the user of filter replacement. The filter media is inserted into the filter housing and may be a specialty or commercially available filter.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 2, 2009
    Inventor: David F. Campbell
  • Publication number: 20080186186
    Abstract: A shield for use in resisting reading of radio frequency chips includes a flexible non-metallic substrate having a metallic coating. The shield may be incorporated into a book such as a passport, an envelope, a folder, or removably adhered to an article having a radio frequency chip disposed thereon.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Applicant: OpSec Security Group, Inc.
    Inventor: David F. Campbell
  • Patent number: 6854069
    Abstract: The present invention describes a method and system for achieving high availability in a networked computer system. In particular, the method for achieving high-availability is executed in a networked computer system. The networked computer system includes nodes connected by a network. The method includes using high-availability-aware components to represent hardware and software in the networked computer system, managing the components to achieve a desired level of redundancy, and monitoring health of the networked computer system, including health of components and nodes. The method further includes detecting a failure in the networked computer system. Failures detected by the method include failures of a component and/or node. Finally, the method includes recovering from the failure by performing an appropriate failure recovery procedure.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: February 8, 2005
    Assignee: Sun Microsystems Inc.
    Inventors: Mark A. Kampe, Michel Gien, David Penkler, Christian Jacquemot, Frederic Herrmann, Francois Armand, Jean-Marc Fenart, David F. Campbell, Lawrence E. Baltz
  • Patent number: 6780194
    Abstract: The clamp includes a passage adjacent to a pivot connection and into which a corresponding pivot pin is at least partially displaced from its original position into a position in which the circumcision clamp becomes inoperative. In one embodiment, the passage is located at one end of the latching member having a notch that is adjacent to a spur so that, when the clamp is moved to a closed position, the spur slips into the notch. The spur and notch resist movement of the latching member thereby causing the pivot pin to be forcibly displaced from its original position into an inoperative position. Select elements of the clamp may be formed of transparent plastic material for allowing a circumcision operator to monitor the glans penis therebeneath so that same is not damaged during a circumcision. Alternately, the clamp may be formed of aluminum and stainless steel. In such an embodiment, the passage is located at one end of the handle.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: August 24, 2004
    Inventors: Donald S. Freedman, David F. Campbell
  • Publication number: 20030236532
    Abstract: The clamp includes a passage adjacent to a pivot connection and into which a corresponding pivot pin is at least partially displaced from its original position into a position in which the circumcision clamp becomes inoperative. In one embodiment, the passage is located at one end of the latching member having a notch that is adjacent to a spur so that, when the clamp is moved to a closed position, the spur slips into the notch. The spur and notch resist movement of the latching member thereby causing the pivot pin to be forcibly displaced from its original position into an inoperative position. Select elements of the clamp may be formed of transparent plastic material for allowing a circumcision operator to monitor the glans penis therebeneath so that same is not damaged during a circumcision. Alternately, the clamp may be formed of aluminum and stainless steel. In such an embodiment, the passage is located at one end of the handle.
    Type: Application
    Filed: June 24, 2002
    Publication date: December 25, 2003
    Inventors: Donald S. Freedman, David F. Campbell
  • Publication number: 20020007468
    Abstract: The present invention describes a method and system for achieving high availability in a networked computer system. In particular, the method for achieving high-availability is executed in a networked computer system. The networked computer system includes nodes connected by a network. The method includes using high-availability-aware components to represent hardware and software in the networked computer system, managing the components to achieve a desired level of redundancy, and monitoring health of the networked computer system, including health of components and nodes. The method further includes detecting a failure in the networked computer system. Failures detected by the method include failures of a component and/or node. Finally, the method includes recovering from the failure by performing an appropriate failure recovery procedure.
    Type: Application
    Filed: May 2, 2001
    Publication date: January 17, 2002
    Applicant: SUN MICROSYSTEMS, INC.
    Inventors: Mark A. Kampe, Michel Gien, David Penkler, Christian Jacquemot, Frederic Herrmann, Francois Armand, Jean-Marc Fenart, David F. Campbell, Lawrence E. Baltz