Patents by Inventor Georg ZIMBELMANN

Georg ZIMBELMANN 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: 11970915
    Abstract: A tubular gripping assembly for handling a tubular includes a housing; a plurality of gripping members for gripping the tubular; a first fluid line for opening the gripping members, the first fluid line having a one-way valve; and second fluid line for closing the gripping members. The tubular gripping assembly also includes an indicator assembly attached to the housing. The indicator assembly has an indicator movable relative to the housing. The indicator assembly also includes a sensor valve configured to open the check valve for fluid communication through the first fluid line in response to relative axial movement between the indicator and the housing.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: April 30, 2024
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Martin Liess, Georg Zimbelmann
  • Publication number: 20240011360
    Abstract: A tubular gripping assembly for handling a tubular includes a housing; a plurality of gripping members for gripping the tubular; a first fluid line for opening the gripping members, the first fluid line having a one-way valve; and second fluid line for closing the gripping members. The tubular gripping assembly also includes an indicator assembly attached to the housing. The indicator assembly has an indicator movable relative to the housing. The indicator assembly also includes a sensor valve configured to open the check valve for fluid communication through the first fluid line in response to relative axial movement between the indicator and the housing.
    Type: Application
    Filed: July 6, 2022
    Publication date: January 11, 2024
    Inventors: Martin LIESS, Georg ZIMBELMANN
  • Patent number: 10822893
    Abstract: A tong includes a frame having jaws configured to engage a tubular and a tong control assembly disposed on the frame. The tong control assembly includes a housing connected to the frame, a shutoff switch, and a toggle lever located at a suitable position on the housing, whereby the toggle lever is configured to be operated while the shutoff switch is depressed, and wherein the toggle lever is configured to control at least one of: a rotational speed of the jaws and a rotational direction of the jaws. A method of operating a tong includes clamping a first tubular using first jaws of a tong, clamping a second tubular using second jaws of the tong, rotating the first tubular relative to the second tubular, and controlling a rotational speed of the first tubular using a toggle lever disposed on a frame of the tong.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 3, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Georg Zimbelmann, Ditmar Clasen, Bjoern Thiemann
  • Publication number: 20200072002
    Abstract: A tong includes a frame having jaws configured to engage a tubular and a tong control assembly disposed on the frame. The tong control assembly includes a housing connected to the frame, a shutoff switch, and a toggle lever located at a suitable position on the housing, whereby the toggle lever is configured to be operated while the shutoff switch is depressed, and wherein the toggle lever is configured to control at least one of: a rotational speed of the jaws and a rotational direction of the jaws. A method of operating a tong includes clamping a first tubular using first jaws of a tong, clamping a second tubular using second jaws of the tong, rotating the first tubular relative to the second tubular, and controlling a rotational speed of the first tubular using a toggle lever disposed on a frame of the tong.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Georg ZIMBELMANN, Ditmar CLASEN, Bjoern THIEMANN
  • Patent number: 10472906
    Abstract: A tong includes a frame having jaws configured to engage a tubular and a tong control assembly disposed on the frame. The tong control assembly includes a housing connected to the frame, a shutoff switch, and a toggle lever located at a suitable position on the housing, whereby the toggle lever is configured to be operated while the shutoff switch is depressed, and wherein the toggle lever is configured to control at least one of: a rotational speed of the jaws and a rotational direction of the jaws. A method of operating a tong includes clamping a first tubular using first jaws of a tong, clamping a second tubular using second jaws of the tong, rotating the first tubular relative to the second tubular, and controlling a rotational speed of the first tubular using a toggle lever disposed on a frame of the tong.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: November 12, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Georg Zimbelmann, Ditmar Clasen, Bjoern Thiemann
  • Patent number: 10337264
    Abstract: A tong assembly includes a power tong, a backup tong, and a carriage assembly operatively connecting the power tong and the backup tong. The carriage assembly includes a movable trolley assembly. The movable trolley assembly is axially located between the power tong and the backup tong. The movable trolley assembly is supported by the power tong. The movable trolley assembly is configured to axially move the power tong and backup tong relative to each other.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: July 2, 2019
    Inventors: Jan Rothe, Georg Zimbelmann, Bjoern Thiemann, Martin Liess
  • Publication number: 20190055796
    Abstract: A tong includes a frame having jaws configured to engage a tubular and a tong control assembly disposed on the frame. The tong control assembly includes a housing connected to the frame, a shutoff switch, and a toggle lever located at a suitable position on the housing, whereby the toggle lever is configured to be operated while the shutoff switch is depressed, and wherein the toggle lever is configured to control at least one of: a rotational speed of the jaws and a rotational direction of the jaws. A method of operating a tong includes clamping a first tubular using first jaws of a tong, clamping a second tubular using second jaws of the tong, rotating the first tubular relative to the second tubular, and controlling a rotational speed of the first tubular using a toggle lever disposed on a frame of the tong.
    Type: Application
    Filed: August 21, 2017
    Publication date: February 21, 2019
    Inventors: Georg Zimbelmann, Ditmar Clasen, Bjoern Thiemann
  • Publication number: 20180142524
    Abstract: A tong assembly includes a power tong, a backup tong, and a carriage assembly operatively connecting the power tong and the backup tong. The carriage assembly includes a movable trolley assembly. The movable trolley assembly is axially located between the power tong and the backup tong. The movable trolley assembly is supported by the power tong. The movable trolley assembly is configured to axially move the power tong and backup tong relative to each other.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: Jan ROTHE, Georg ZIMBELMANN, Bjoern THIEMANN, Martin Liess