Patents by Inventor Daniel V. Maher

Daniel V. Maher 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).

  • Publication number: 20200063505
    Abstract: A mudline closure device is lowered between tensioners coupled to a deck of a vessel or rig onto a subsea wellhead. A tensioner platform is then attached to the tensioners. The tensioner platform includes a platform opening having an inner diameter through which an emergency disconnect system may pass. The tensioner platform also includes rotation bearings secured in the platform opening. A split support includes outer surfaces disposed along its circumference. The outer surfaces are seated on the rotation bearings. The split support includes a support opening having an inner diameter through which a marine riser may pass. The split support also includes a landing shoulder secured in the support opening to suspend a surface blowout preventer to the deck. As the vessel or rig changes direction, the split support rotates relative to the tensioner platform without imparting excessive torsion on the marine riser.
    Type: Application
    Filed: December 11, 2017
    Publication date: February 27, 2020
    Inventors: James V. Maher, Daniel McCelvey
  • Publication number: 20200003015
    Abstract: Hang-off and/or torque 1 features are provided on the pipes and/or the connections of a high-pressure riser. The hang-off features may be useful to support the weight of the full length of the riser. Accordingly, the hang-off may be done directly in the middle of the connection, where the strength is the greatest. Also, by using the torque features, it is possible to accommodate large torque values. Accordingly, a large torque resistance may be provided while an upper pipe is being made up. A make-up tool taking advantage of the hang-off and/or torque features permits assembling the high-pressure riser more automatically and with less manual intensive labor.
    Type: Application
    Filed: December 11, 2017
    Publication date: January 2, 2020
    Inventors: James V. Maher, Daniel McCelvey
  • Publication number: 20190360294
    Abstract: A surface joint provides a sealing interface between pipe rams or variable-bore rams of a surface blowout preventer and a landing string. The surface joint may be used in a system including the surface blowout preventer, a subsea mudline closure device having a conventional configuration without additional pipe rams or variable-bore rams used to close on a slip joint, and a high-pressure riser.
    Type: Application
    Filed: December 11, 2017
    Publication date: November 28, 2019
    Inventors: James V. Maher, Daniel McCelvey
  • Publication number: 20190242436
    Abstract: A repair axial bearing system includes an arcuate rail coupled to a support, one or more bolts protruding upward from a raised portion coupled to a supported member, and a lever plate including at least one low friction bearing pad mounted in the lever plate. A first new bearing surface is formed on the arcuate rail. A second new bearing surface is formed on the at least one low friction bearing pad. The one or more bolts are tensioned with bolt tensioners to press the lever plate against the raised portion. The axial bearing system can include a hydraulic cylinder to slide the second bearing surface over the first bearing surface. The repair axial bearing system can be used to supplant a damaged axial bearing positioned between an FPSO and a turret.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Inventors: James V. Maher, David Sverre, Daniel McCelvey, Russell Hegler, Ricky Brown
  • Patent number: 4832033
    Abstract: A muscle stimulation system which stimulates muscles with electrical pulses supplied to electrodes applied to the skin overlying the muscle comprises a system controller and one or more personally portable stimulator units, each provided with electrodes. The system controller stores data relating to the characteristics of pulses to be applied to the muscle e.g. Trophic or functional or a combination thereof, and is adapted to down-load this data to a personal stimulator unit either by an infra-red link or by programming a programmable memory module which is then connected into the stimulator unit. The electrodes are applied to the skin of the patient and supplied with the pulses programmed into the stimulator unit, the stimulator unit being carried by the patient. The system controller may be adapted to be controlled by a personal computer and may also be provided with its own muscle stimulator.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: May 23, 1989
    Assignee: Bio-Medical Research Limited
    Inventors: Daniel V. Maher, Conor Minogue
  • Patent number: 4712558
    Abstract: A method and apparatus are disclosed for the electrotrophic stimulation of muscle, that is, stimulation using pulses trains onto which information which will cause long-term functional and/or structural changes in the muscle tissue. This information is coded onto the interval between successive pulses of the series. Also disclosed is a method and apparatus for acquiring trophic data from motor unit action potential series.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: December 15, 1987
    Assignee: Bio Medical Research Ltd.
    Inventors: Geoffrey Kidd, Daniel V. Maher, Jozef Cywinski