Patents by Inventor John Daniel Muchow

John Daniel Muchow 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).

  • Retrievable downhole adjustable choke
    Patent number: 6338385
    Abstract: A downhole adjustable choke includes a choke body which is adapted to be lowered into a borehole. The choke body has a bore and an orifice connected to the bore. A sleeve is disposed inside the bore of the choke body. The sleeve has an orifice which is aligned with the orifice in the choke body. An actuator is coupled to move a flow plug inside the sleeve so that the flow area of the orifice in the sleeve is adjustable.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: January 15, 2002
    Assignee: Hydril Company
    Inventor: John Daniel Muchow
  • Pressure vessel clamp connector
    Patent number: 6003548
    Abstract: A clamping assembly for connecting and disconnecting aligned hubs of a first and a second pressure vessel is provided. The clamping assembly includes a pair of clamp segments and at least one cam in operable engagement with the clamp segments. The clamp segments are movable between a closed position to engage the hubs and an open position to disengage from the hubs. The movement of the clamp segments from the closed position to the open position operates the cam to separate the hubs.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: December 21, 1999
    Assignee: Hydril Company
    Inventor: John Daniel Muchow