Patents by Inventor Dantan Olivier

Dantan Olivier 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).

  • Process and apparatus for vertical racking of drilling shafts on a drilling tower
    Patent number: 4738321
    Abstract: The invention concerns a process and an installation for vertical racking of drill shafts on a drilling tower. The installation comprises mechanisms (34, 36, 38, 40) to grasp an upper intermediate portion of an assembly (26) of shaft sections removed from the well bore, and to incline this shaft assembly with respect to vertical below lifting mechanisms (16, 18). The installation further includes mechanisms (42, 44, 46, 48, 50) to receive and support the lower end of the shaft assembly and then displace the assembly in synchronization with the first mentioned mechanisms to transport the assembly to racks for vertical storage.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: April 19, 1988
    Assignee: Brissonneau et Lotz Marine
    Inventor: Dantan Olivier