Patents by Inventor Lars Barkman

Lars Barkman 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: 8627741
    Abstract: A process turning disc connectable to an output shaft of a motor configured to rotate the process turning disc about a first center axis of the process turning disc. The process turning disc being configured to guide a cable or hose. A first flange is connectable to an end part of a robot arm. A second flange is connectable to a tool element. The flanges are spaced apart from each other by an intermediate connecting member. The connecting member is connected to the flanges. The connecting member provides a passage between the flanges. The passage is configured to receive and guide the cable/hose. The passage has an inlet side for the cable/hose and an outlet side for the cable/hose. A robot arm including the process turning disc, a robot including the robot arm and a method that utilizes the process turning disc.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: January 14, 2014
    Assignee: ABB Technology AB
    Inventors: Lars Barkman, Mattias Lindevall, Pascal Cabanne, Peter Bylund, Joachim Ljungkvist
  • Publication number: 20110203402
    Abstract: A process turning disc connectable to an output shaft of a motor configured to rotate the process turning disc about a first center axis of the process turning disc. The process turning disc being configured to guide a cable or hose. A first flange is connectable to an end part of a robot arm. A second flange is connectable to a tool element. The flanges are spaced apart from each other by an intermediate connecting member. The connecting member is connected to the flanges. The connecting member provides a passage between the flanges. The passage is configured to receive and guide the cable/hose. The passage has an inlet side for the cable/hose and an outlet side for the cable/hose. A robot arm including the process turning disc, a robot including the robot arm and a method that utilizes the process turning disc.
    Type: Application
    Filed: March 16, 2009
    Publication date: August 25, 2011
    Applicant: ABB TECHNOLOGY AB
    Inventors: Lars Barkman, Mattias Linderas, Pascal Cabanne, Peter Bylund, Joachim Ljungkvist
  • Patent number: 4794223
    Abstract: A weld seam tracker for a welding robot has an optical sensor (4) for sensing the position of the seam and controlling the movement of a welding torch (10). The sensor (4) includes a light source, for example a laser, and a position-sensing detector. The sensor (4) is rotatably mounted at a housing (1) mounted on the robot hand (3) and is operated by a motor (6) arranged in the housing (1). A heat shield (40) with a window (42, 43) for the scanning light protects the sensor (4) against spatter and heat radiation. The welding torch (10) is mounted in a through-hole in the housing (1) and is surrounded by the sensor (4). Compressed air for cooling the sensor (4) is conducted to said sensor (4) via a gas-tight space (23) in the housing (1). Part of the cooling air is led out through a sleeve-formed screen (46) at the window (42, 43) of the heat shield ( 40), whereby fumes etc. are blown away from the visibility range located nearest the window.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: December 27, 1988
    Assignee: ASEA Aktiebolag
    Inventors: Lars Barkman, Torbjorn Forss, Hakan Fardig, Tommy Svensson