Patents by Inventor Lloyd B. Marshall

Lloyd B. Marshall 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).

  • Quick-release coupling
    Patent number: 4550935
    Abstract: The invention relates to a quick-release coupling, more particularly intended for hose pipe assemblies used at sea.Said coupling is composed of two jaws which cooperate with truncated parts of the coupling members and are held together or released by the movement of a finger sliding inside bores provided in said jaws.The coupling according to the invention offers improved efficiency and reliability.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: November 5, 1985
    Assignee: Etudes et Fabrication Dowell Schlumberger
    Inventors: Lloyd B. Marshall, Faycal Ghebrid