Patents by Inventor Friedrich Mewis

Friedrich Mewis 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).

  • Device for improving the water influx towards a propeller of a watercraft
    Patent number: 10005530
    Abstract: The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodied as a free end.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: June 26, 2018
    Assignee: becker marine systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • DEVICE FOR REDUCING THE DRIVING POWER REQUIREMENT OF A WATERCRAFT
    Publication number: 20160090163
    Abstract: The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodied as a free end.
    Type: Application
    Filed: March 31, 2014
    Publication date: March 31, 2016
    Applicant: BECKER MARINE SYSTEMS GMBH & CO. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Pre-nozzle for a drive system of a watercraft to improve the energy efficiency
    Patent number: 8944869
    Abstract: A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 3, 2015
    Assignee: becker marine systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Device for reducing the drive power requirements of a watercraft
    Patent number: 8814496
    Abstract: A device is provided for reducing the drive power requirement of a watercraft includes a fore-nozzle, wherein at least one outer fin projects outwards from the fore-nozzle.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: August 26, 2014
    Assignee: Becker Marine Systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Device for reducing the drive power requirement of a ship
    Patent number: 8430703
    Abstract: A device for reducing the drive power requirement of a ship and even for not very quick ships of all types, in particular for slow, wide ships, such as tankers, bulkers and tugboats, and for improving the propeller blower stream as well as for producing a pretwist includes a front nozzle fixedly installed on the hull with fins or hydrofoils placed in the inner space thereof.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 30, 2013
    Assignee: becker marine systems GmbH & Co. KG
    Inventor: Friedrich Mewis
  • PRE-NOZZLE FOR A DRIVE SYSTEM OF A WATERCRAFT TO IMPROVE THE ENERGY EFFICIENCY
    Publication number: 20130059491
    Abstract: A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.
    Type: Application
    Filed: February 23, 2012
    Publication date: March 7, 2013
    Applicant: Becker Marine Systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Device for reducing the power demand for the propulsion of a ship
    Patent number: 8123578
    Abstract: A device for reducing the power demand for the propulsion of a ship, and for broad-built or non-broad-built not-very-fast ships of any type which is affixed to the hull at a short distance upstream of the propeller, comprises a fore-nozzle with fins or hydrofoils that are arranged within the fore-nozzle, wherein the fore-nozzle, at the top, can be tilted forwards by up to 8°, on a horizontal transverse axis that extends through the centre of the fore-nozzle.
    Type: Grant
    Filed: March 7, 2009
    Date of Patent: February 28, 2012
    Assignee: Becker Marine Systems GmbH & Co.
    Inventor: Friedrich Mewis
  • Device for reducing the power demand for the propulsion of a ship
    Publication number: 20090229506
    Abstract: A device for reducing the power demand for the propulsion of a ship, and for broad-built or non-broad-built not-very-fast ships of any type which is affixed to the hull at a short distance upstream of the propeller, comprises a fore-nozzle with fins or hydrofoils that are arranged within the fore-nozzle, wherein the fore-nozzle, at the top, can be tilted forwards by up to 8°, on a horizontal transverse axis that extends through the centre of the fore-nozzle.
    Type: Application
    Filed: March 7, 2009
    Publication date: September 17, 2009
    Inventor: Friedrich Mewis
  • Device for reducing the drive power requirement of a ship
    Publication number: 20090084301
    Abstract: A device for reducing the drive power requirement of a ship and even for not very quick ships of all types, in particular for slow, wide ships, such as tankers, bulkers and tugboats, and for improving the propeller blower stream as well as for producing a pretwist includes a front nozzle fixedly installed on the hull with fins or hydrofoils placed in the inner space thereof.
    Type: Application
    Filed: July 30, 2008
    Publication date: April 2, 2009
    Inventor: Friedrich Mewis