Patents by Inventor Medhat Osman

Medhat Osman 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).

  • Patent number: 11959438
    Abstract: A thrust reverser system for jet aircraft comprising an exhaust tailpipe mounted to the turbine engine aft turbine flange and two clamshell doors, actuators and a locking system to prevent inadvertent deployment of the clamshell doors in-flight. Two improved design clamshell doors configurations, either one or a combination of both, mounted on either side of the top and bottom of the exhaust tailpipe, fitted with two patented design actuators mounted one on each side of the external sides of the tailpipe between the clamshell doors and the tailpipe, possibly in a depression in the tailpipe called blister, assuming them to be hydraulic actuators for discussion purposes. The actuators drive the clamshell doors using improved floating linkages loosely pivoted to the exterior of the exhaust tailpipe.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: April 16, 2024
    Inventor: Medhat Osman
  • Publication number: 20230213001
    Abstract: A thrust reverser system for jet aircraft comprising an exhaust tailpipe mounted to the turbine engine aft turbine flange, clamshell doors, actuators and locking systems to prevent inadvertent deployment of the clamshell doors. Improved design clamshell doors shrouding the tailpipe fitted with two patented design actuators, enclosed between the doors and the tailpipe. The actuators throw the doors behind the tailpipe exhaust exit area using improved linkages attached to the tailpipe and the doors, to reverse the exhaust gases forward. The tailpipe can be of circular or any geometric shape. Reverse Exhaust gases are enclosed between the doors and two movable fairings. Several sound attenuation configurations provisions for the tailpipe, the fixed and movable fairings. Three independent locking systems provisions to prevent inadvertent deployment of the doors.
    Type: Application
    Filed: February 23, 2022
    Publication date: July 6, 2023
    Inventor: Medhat Osman
  • Patent number: 10156207
    Abstract: An exhaust noise attenuation system with ultra thrust reverser system comprising double walled duct made of sheet metal with a perforated inner wall except in areas where there are solid non-perforated corrugations or hat sections which act as frames for structural integrity, with noise attenuation material, sandwiched between inner perforated and outer solid walls of duct. Double walled duct is bolted to engine aft turbine frame. Hinged Inlet Doors are mounted at forward end of duct, for ram recovery and control the flow of ambient air sucked by eductor action. A movable exit cone can be used to vary the exit area of double walled duct to optimize engine operation. Ultra hush thrust reverser system mounted at aft end of double walled duct, comprising two improved split flow clamshell doors mounted on top and bottom of double walled duct, with two unique design actuators mounted one on each side tucked between the external wall of duct and clamshell doors operating clamshell doors using linkages.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 18, 2018
    Inventor: Medhat Osman
  • Publication number: 20170191447
    Abstract: An exhaust noise attenuation system mounted to a Jet Engine exit turbine frame for noise attenuation with an ULTRA THRUST REVERSER System mounted at the exhaust end, aft end of the exhaust noise attenuation system, to provide deceleration after landing of the aircraft. The exhaust noise attenuation system consists of double walled duct which can be either of constant circular, square or elliptic cross section or convergent section with variable cross-section area, made of sheet metal double walls with a perforated inner wall or skin except in the areas where there are solid non-perforated corrugations or hat sections which act as frames for structural integrity of the double walled duct, and a non-perforated outer wall or skin, with an appropriate noise attenuation material, assuming honeycomb for the sake of discussion since it is widely used, sandwiched between the inner perforated and outer solid skins of the duct.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 6, 2017
    Inventor: Medhat Osman
  • Patent number: 7043897
    Abstract: A thrust reverser system for jet engine comprising a tailpipe, Square/trapezoidal clamshell doors and actuators, wherein the tailpipe and clamshell doors may be corrugated, the corrugations can be mating, the actuators may be situated out of the external free air flow, the doors may be stowed out of contact with internal engine gas flow and that may include a tail pipe a fairing having a movable section.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: May 16, 2006
    Inventor: Medhat A. Osman
  • Patent number: 5615834
    Abstract: A thrust reverser system for jet engine comprising a tailpipe, clamshell doors and actuators, wherein the tailpipe and clamshell doors may be corrugated, the corrugations mating, the actuators may be situated out of the external free air flow, the doors may be stowed out of contact with internal engine gas flow and that may include a tailpipe aft fairing having a movable section and a pressure booster system for the actuators.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: April 1, 1997
    Inventor: Medhat A. Osman