Patents by Inventor John Alexander Currie

John Alexander Currie 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).

  • Fluid pressure control
    Patent number: 4106525
    Abstract: A fluid flow restrictor is described having a long path length capable of sorbing energy with less noise generation than that normally encountered with conventional fluid flow restrictors of short path lengths. The restrictor is adapted for attachment between two adjacent lengths of a pipeline, three forms being particularly described, one of fixed path length and bore, another of fixed path length and variable bore, and a third of variable path length and fixed bore.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: August 15, 1978
    Assignee: The Secretary of State for Industry in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: John Alexander Currie, Maurice McKenna, John Howard Upton