Patents by Inventor Marvin Doll

Marvin Doll 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).

  • Holder for slip ring brushes
    Patent number: 11171457
    Abstract: A brush holder for slipring brushes comprises a brush mount held by a lever at a base. The lever is connected by a base pivot to the base and is pivotable in a plane orthogonal to a brush mount pivot axis and/or to a slipring rotation axis. A spring is provided between the base and the lever. The brush mount is connected to the lever by a brush mount pivot pivotable in said plane. The brush mount holds a first brush and a second brush wherein the brush mount pivot is between the first brush and the second brush.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: November 9, 2021
    Assignee: SCHLEIFRING GMBH
    Inventors: Peter Heinbuch, Christian Holzapfel, Marvin Doll, Johannes Katz
  • Holder for Slip Ring Brushes
    Publication number: 20210159652
    Abstract: A brush holder for slipring brushes comprises a brush mount held by a lever at a base. The lever is connected by a base pivot to the base and is pivotable in a plane orthogonal to a brush mount pivot axis and/or to a slipring rotation axis. A spring is provided between the base and the lever. The brush mount is connected to the lever by a brush mount pivot pivotable in said plane. The brush mount holds a first brush and a second brush wherein the brush mount pivot is between the first brush and the second brush.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Peter HEINBUCH, Christian HOLZAPFEL, Marvin DOLL, Johannes KATZ
  • Vibration absorbing device for slip-ring brushes
    Patent number: 10833467
    Abstract: A sliding brush assembly for a slipring includes a sliding brush and an absorbing device containing absorbing material attached to the sliding brush, such that the at least one sliding brush is enclosed by the absorbing material. The absorbing device includes a housing with two (optionally identical) housing parts (each having an elongated base with a snap arm at one side and at the opposing side an opening, into which the snap-arm fits). The housing may easily be closed around a sliding brush by snapping two housing parts together.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: November 10, 2020
    Assignee: SCHLEIFRING GmbH
    Inventors: Christian Vogl, Jan Rehder, Peter Heinbuch, Bastian Cording, Marvin Doll
  • VIBRATION ABSORBING DEVICE FOR SLIP-RING BRUSHES
    Publication number: 20190190221
    Abstract: A sliding brush assembly for a slipring includes a sliding brush and an absorbing device containing absorbing material attached to the sliding brush, such that the at least one sliding brush is enclosed by the absorbing material. The absorbing device includes a housing with two (optionally identical) housing parts (each having an elongated base with a snap arm at one side and at the opposing side an opening, into which the snap-arm fits). The housing may easily be closed around a sliding brush by snapping two housing parts together.
    Type: Application
    Filed: November 2, 2018
    Publication date: June 20, 2019
    Inventors: Christian Vogl, Jan Rehder, Peter Heinbuch, Bastian Cording, Marvin Doll