Patents by Inventor Ray Engel

Ray Engel 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).

  • Dual-layered graphene-based wet friction material
    Patent number: 12504051
    Abstract: A dual-layered graphene-based friction material is a paper matrix that is used as a high friction engagement lining in applications such as clutch plate or wet brake plate linings. The material uses a porous yet elastic fibrous base layer and a top layer containing thermally conductive graphene nanoplatelets mixed with a thermosetting resin. The top layer increases the overall thermal capacity while maintaining sufficient material porosity that allows satisfactory cooling oil flow through the material.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: December 23, 2025
    Assignee: Alto Products Corporation
    Inventors: Jiahui Xu, David Landa, Juncheng Lui, Ray Engel
  • Graphene-based wet friction material
    Patent number: 11287004
    Abstract: A resin impregnated wet friction material that serves as the friction lining on either a clutch plate or a brake pad plate is formed as a paper matrix. The composition of the paper matrix contains graphene nanoparticles as an aid for thermal capacity and conductivity.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: March 29, 2022
    Assignee: Alto Products Corporation
    Inventors: Juncheng Liu, David Landa, Ray Engel
  • Showerhead with rotatable oval spray pattern and handheld spray pattern controller
    Patent number: 8695897
    Abstract: A handheld showerhead assembly is provided which provides for a plurality of spray patterns. In a preferred embodiment, the showerhead assembly provides for four spray patterns including an oval shaped spray pattern. The showerhead is rotatably attached to the handle so that the showerhead can be rotated relative to the handle without altering spray patterns, other than their orientation. Furthermore, the handheld shower assembly includes a push button controller located within the handle.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: April 15, 2014
    Inventor: Ray Engel
  • Showerhead with rotatable oval spray pattern and handheld spray pattern controller
    Publication number: 20120175436
    Abstract: A handheld showerhead assembly is provided which provides for a plurality of spray patterns. In a preferred embodiment, the showerhead assembly provides for four spray patterns including an oval shaped spray pattern. The showerhead is rotatably attached to the handle so that the showerhead can be rotated relative to the handle without altering spray patterns, other than their orientation. Furthermore, the handheld shower assembly includes a push button controller located within the handle.
    Type: Application
    Filed: February 29, 2012
    Publication date: July 12, 2012
    Inventor: Ray Engel
  • Showerhead with rotatable oval spray pattern and handheld spray pattern controller
    Patent number: 8177147
    Abstract: A handheld showerhead assembly is provided which provides for a plurality of spray patterns. In a preferred embodiment, the showerhead assembly provides for four spray patterns including an oval shaped spray pattern. The showerhead is rotatably attached to the handle so that the showerhead can be rotated relative to the handle without altering spray patterns, other than their orientation. Furthermore, the handheld shower assembly includes a push button controller located within the handle.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 15, 2012
    Inventor: Ray Engel
  • Showerhead with rotatable oval spray pattern and handheld spray pattern controller
    Publication number: 20100264237
    Abstract: A handheld showerhead assembly is provided which provides for a plurality of spray patterns. In a preferred embodiment, the showerhead assembly provides for four spray patterns including an oval shaped spray pattern. The showerhead is rotatably attached to the handle so that the showerhead can be rotated relative to the handle without altering spray patterns, other than their orientation. Furthermore, the handheld shower assembly includes a push button controller located within the handle.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Inventor: Ray Engel
  • Integrated current sensor
    Patent number: 7265531
    Abstract: An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: September 4, 2007
    Assignee: Allegro MicroSystems, Inc.
    Inventors: Jason Stauth, Richard Dickinson, John Sauber, Ray Engel, Sandra Pinelle
  • Integrated current sensor
    Publication number: 20040196024
    Abstract: An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.
    Type: Application
    Filed: April 26, 2004
    Publication date: October 7, 2004
    Inventors: Jason Stauth, Richard Dickinson, John Sauber, Ray Engel, Sandra Pinelle
  • Integrated current sensor
    Patent number: 6781359
    Abstract: An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: August 24, 2004
    Assignee: Allegro Microsystems, Inc.
    Inventors: Jason Stauth, Richard Dickinson, John Sauber, Ray Engel, Sandra Pinelle
  • Integrated current sensor
    Publication number: 20040056647
    Abstract: An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.
    Type: Application
    Filed: September 20, 2002
    Publication date: March 25, 2004
    Inventors: Jason Stauth, Richard Dickinson, John Sauber, Ray Engel, Sandra Pinelle