Patents by Inventor David Alan Williams

David Alan Williams 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).

  • Organ perfusion systems
    Patent number: 11957124
    Abstract: A disposable set of components for an organ perfusion system comprising a fluid supply duct for supplying fluid to the organ, a fluid removal duct for removing fluid from the organ, and a surrogate organ removably connected between the fluid supply duct and the fluid removal duct so as to form a fluid circuit, so that fluid can be circulated in the circuit in preparation for connection of the organ.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 16, 2024
    Assignee: ORGANOX LIMITED
    Inventors: Stuart Brian William Kay, David George Robinson, Philip David Canner, Peter Alan Salkus, Leslie James Russell, Peter John Friend, Constantin C. Coussios
  • RIFLED BARREL
    Publication number: 20220214135
    Abstract: A rifled barrel having splines. A projectile has at least one inner fin. A method to spin a projectile to render its shell and its fluid to spin at the approximately the same rate.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Inventor: David Alan Williams
  • Rifled barrel
    Patent number: 11280576
    Abstract: A rifled barrel having splines. A projectile has at least one inner fin. A method to spin a projectile to render its shell and its fluid to spin at the approximately the same rate.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 22, 2022
    Inventor: David Alan Williams
  • Rifled Barrel
    Publication number: 20200173754
    Abstract: A rifled barrel having splines. A projectile has at least one inner fin. A method to spin a projectile to render its shell and its fluid to spin at the approximately the same rate.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 4, 2020
    Inventor: David Alan Williams
  • Paintball marker with interchangeable firing modes
    Patent number: 9574844
    Abstract: The present disclosure discloses a paintball marker capable of interchanging between a bolt action firing valve and a spool action firing valve. The present disclosure further provides a method of interchanging between the bolt action firing valve and the spool firing valve.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: February 21, 2017
    Inventor: David Alan Williams
  • PAINTBALL MARKER WITH INTERCHANGEABLE FIRING MODES
    Publication number: 20160273871
    Abstract: The present disclosure discloses a paintball marker capable of interchanging between a bolt action firing valve and a spool action firing valve. The present disclosure further provides a method of interchanging between the bolt action firing valve and the spool firing valve.
    Type: Application
    Filed: October 23, 2015
    Publication date: September 22, 2016
    Inventor: David Alan Williams
  • PAINTBALL MARKER WITH INTERCHANGEABLE FIRING MODES
    Publication number: 20140338649
    Abstract: The present disclosure discloses a paintball marker capable of interchanging between a bolt action firing valve and a spool action firing valve. The present disclosure further provides a method of interchanging between the bolt action firing valve and the spool firing valve.
    Type: Application
    Filed: February 27, 2014
    Publication date: November 20, 2014
    Inventor: David Alan Williams
  • Turn-on method and apparatus for ultrasonic operations
    Patent number: 4047992
    Abstract: Ultrasonic method and apparatus having improved turn-on. Low level power is furnished to an unloaded transducer to start it running at a desired frequency. High level power is then furnished the transducer for performing the ultrasonic operation while loaded. The high level power is stopped and the low level power is maintained, reduced or stopped before the load is removed.
    Type: Grant
    Filed: March 2, 1976
    Date of Patent: September 13, 1977
    Assignee: Eastman Kodak Company
    Inventors: David Alan Williams, Karl Sperber, Calvin Owen Stoutz