Patents by Inventor Yohannes Haile

Yohannes Haile 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: 9347493
    Abstract: A bearing assembly is provided. The assembly includes a plurality of tapered rollers and a plurality of spherical rolling elements. A first inner ring defines a first inner raceway on which the plurality of tapered rollers run, and a second inner ring defines a second inner raceway on which the plurality of spherical rolling elements run. A unitary outer ring includes a first portion defining a first outer raceway on which the plurality of tapered rollers run, and a second portion defining a second outer raceway on which the plurality of spherical rolling elements run.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 24, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Yohannes Haile, Rohan Dubey, Zheng Wang, Shaun Tate
  • Publication number: 20150145363
    Abstract: An active magnetic wheel bearing including at least two electromagnetic units arranged to support a wheel hub flange of a vehicle within a bearing outer ring. The active magnetic wheel bearing requires little change to surrounding known structure of the wheel hub flange unit. In addition a method of control and operation of the magnetic wheel bearing is presented.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 28, 2015
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Yohannes Haile, Shakeel Shaikh, Bogyu Kang, Karen Flores De Jesus, Zheng Wang
  • Publication number: 20150117803
    Abstract: An air pressure bearing including a bearing including an outer bearing race and inner bearing race with a bearing gap therebetween, mounted between an outer race support ring and inner race support structure. Pressurized air is monitored, for example air pressure and flow rate, and supplied to the bearing and exhausted from the bearing. A control module is used to adjust characteristics of the pressurized air to achieve design application parameters, such as load carrying, stiffness and dampening. A method of controlling an active air pressure bearing is also described, including providing and monitoring pressurized air and adjusting air supply to meet application design parameters.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 30, 2015
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Yohannes Haile, Zheng Wang
  • Publication number: 20150110430
    Abstract: A bearing assembly is provided. The assembly includes a plurality of tapered rollers and a plurality of spherical rolling elements. A first inner ring defines a first inner raceway on which the plurality of tapered rollers run, and a second inner ring defines a second inner raceway on which the plurality of spherical rolling elements run. A unitary outer ring includes a first portion defining a first outer raceway on which the plurality of tapered rollers run, and a second portion defining a second outer raceway on which the plurality of spherical rolling elements run.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Yohannes Haile, Rohan Dubey, Zheng Wang, Shaun Tate
  • Patent number: 7549927
    Abstract: A tunable damper for a torque transferring assembly having a tubular shaft including an inner surface defining an elongated cavity includes an input channeling portion and an output channeling portion, wherein each channeling portion is formed from a first predetermined foam material having a first density and a diameter sufficient for providing a resilient bias force against the inner surface of the tubular shaft. The tunable damper further includes at least one absorber formed from a second predetermined foam material having a second density different from the first predetermined foam material and first density, respectively. The at least one absorber is positioned between the input and output channeling portions for attenuating a first predetermined range of frequencies of noise produced or transmitted by the torque transferring assembly.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: June 23, 2009
    Assignee: Automotive Components Holdings, LLC
    Inventors: Yohannes Haile, Michael W. Hopson, Niaz A. Khwaja, Trenton S. Meehan, Rand Sutherland Schenck
  • Publication number: 20080076586
    Abstract: A tunable damper for a torque transferring assembly having a tubular shaft including an inner surface defining an elongated cavity includes an input channeling portion and an output channeling portion, wherein each channeling portion is formed from a first predetermined foam material having a first density and a diameter sufficient for providing a resilient bias force against the inner surface of the tubular shaft. The tunable damper further includes at least one absorber formed from a second predetermined foam material having a second density different from the first predetermined foam material and first density, respectively. The at least one absorber is positioned between the input and output channeling portions for attenuating a first predetermined range of frequencies of noise produced or transmitted by the torque transferring assembly.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 27, 2008
    Inventors: Yohannes Haile, Michael W. Hopson, Niaz A. Khwaja, Trenton S. Meehan, Rand Sutherland Schenck
  • Publication number: 20050197194
    Abstract: A lightweight damper for reducing noise and vibration in torque transferring assemblies that is easily assembled and cost efficient. The damper may be formed from a foam material having a density less than 1.4 lb/ft3, and includes an outer surface that is resiliently biased against the inner surface of a tubular shaft when installed. In a second embodiment, the damper is formed from a sheet of material that dissipates energy such as noises and vibrations through movement of the layers relative to each other. In third embodiment, the dampening sheet and foam damper are combined to provide a damper that dampens noises and vibrations across a large frequency range.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 8, 2005
    Inventors: Yohannes Haile, Thomas Kamrath, Rand Schenck, Norman Szalony