Patents by Inventor Karl-Erik Forslund
Karl-Erik Forslund 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).
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Patent number: 7849761Abstract: A wrist unit to be arranged in an industrial robot including a control system and a manipulator. The manipulator includes a robot arm and a wrist unit arranged on the robot arm and including a wrist housing arranged for rotation about a fourth axis of rotation, a wrist part/tilt pivotally journalled in the wrist housing for rotation about a fifth axis of rotation. A second transmission is configured to transmit rotation form a second drive unit to the turn disc about the sixth axis of rotation where the control system controls the first and second drive units.Type: GrantFiled: December 22, 2004Date of Patent: December 14, 2010Assignee: ABB ABInventors: Karl-Erik Forslund, Catarina Forssén, legal representative
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Patent number: 7806020Abstract: A robot arm for an industrial robot. The robot arm includes a wrist housing, a wrist, and a turn disc. The wrist is rotatably connected to the wrist housing and the turn disc is rotatably connected to the wrist. A first motor drives the wrist and a second motor drives the turn disc. A first driving rope transmits the motor rotation to the wrist, and a second driving rope transmits the motor rotation to the drive pulley.Type: GrantFiled: April 29, 2004Date of Patent: October 5, 2010Assignee: ABB ABInventors: Karl-Erik Forslund, Annika Thyselius, legal representative, Ove Kullborg
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Publication number: 20090139364Abstract: A wrist unit to be arranged in an industrial robot including a control system and a manipulator. The manipulator includes a robot arm and a wrist unit arranged on the robot arm and including a wrist housing arranged for rotation about a fourth axis of rotation, a wrist part/tilt pivotally journalled in the wrist housing for rotation about a fifth axis of rotation. A second transmission is configured to transmit rotation form a second drive unit to the turn disc about the sixth axis of rotation where the control system controls the first and second drive units.Type: ApplicationFiled: December 22, 2004Publication date: June 4, 2009Applicant: ABB ABInventors: Karl-Erik Forslund, Catarina Forssen
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Publication number: 20070256513Abstract: A robot arm for an industrial robot. The robot arm includes a wrist housing, a wrist, and a turn disc. The wrist is rotatably connected to the wrist housing and the turn disc is rotatably connected to the wrist. A first motor drives the wrist and a second motor drives the turn disc. A first driving rope transmits the motor rotation to the wrist, and a second driving rope transmits the motor rotation to the drive pulley.Type: ApplicationFiled: April 29, 2004Publication date: November 8, 2007Applicant: ABB ABInventors: Karl-Erik Forslund, Annika Thyselius, Ove Kullborg
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Publication number: 20050034552Abstract: An industrial robot comprising a manipulator with a control system, where the manipulator comprises a hollow, first robot unit (9) and a second robot unit (10) rotatable around an axle (A). The first robot unit (9) and the second robot unit (10) are arranged for rotation and/or bending in relation to each other and the second robot unit (10 includes a robot tool (11). Cables (12) are drawn through the first robot unit (9) and arranged coaxially and detachably connected with a first end (13), to the second robot unit (10), via a connection device. The connection device comprises a body (14), fixed to the first end (13) of the cables in at least one wire and the body (14) is arranged with sockets (19) for connection of power supply to the robot tool (11).Type: ApplicationFiled: July 18, 2002Publication date: February 17, 2005Inventors: Daniel Back, Karl-Erik Forslund, Dan Salomonsson, Leif Tellden
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Patent number: 6455799Abstract: An industrial robot including a hollow arm pan (1) rotatable around its longitudinal axis (A) through which a cable set (4) is drawn through and connected to a robot unit (3) rotatable around an axis (A). The arm part and the robot unit are arranged for both rotation and bending relative to one another. The cable set (4) is guided and supported by a supporting means (5) rotatably arranged within arm part (1) so that the bending movement is accommodated by the part of the cable that is located between the supporting means (5) and the robot unit (3) and the rotational movement is accommodated by the part of the cable set that is located within the arm part (1) before the supporting means (5) when viewed from the power source (D).Type: GrantFiled: September 6, 2001Date of Patent: September 24, 2002Assignee: ABB ABInventors: Karl-Erik Forslund, Leif Tellden
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Patent number: 5901613Abstract: An industrial robot comprises a stand mounted on a foot and being rotatable about a first, vertical axis, said stand supporting a first robot arm which is rotatable in relation to the stand about a second, horizontal axis. The stand comprises an underbody with two projecting parts which support an intermediate part which is rotatable in relation to the stand. The intermediate part comprises two parallel supporting elements, at the upper ends of which the first robot arm is journalled. The lower ends of the supporting elements are rotatably attachable to the underbody. The robot may thus be tilted forwards or backwards and be fixed in these positions during the robot operation, so as to obtain different types of operating ranges.Type: GrantFiled: September 15, 1997Date of Patent: May 11, 1999Assignee: Asea Brown Boveri ABInventor: Karl-Erik Forslund
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Patent number: 4913577Abstract: An elbow joint of an industrial robot comprises a first arm part which is yoke-formed at the joint and an end of a second arm part located between the yokes. On the sides of the end of the second arm part which face the respective yokes, bearing seats are provided in which shaft journals are journalled. The shaft journals are connected together by a pull rod, which extends through the end and the shaft journals, and are received in, and extend through, through-holes in the respective yokes. The shaft journals are fixed to the yokes by means of nuts threaded onto the accessible part of the shaft journals on the opposite side of the respective yokes.Type: GrantFiled: May 18, 1988Date of Patent: April 3, 1990Assignee: Asea Brown Boveri ABInventors: Karl-Erik Forslund, Klas Klangeby
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Patent number: 4643036Abstract: A power transmission device includes a rotatably mounted drive screw, a nut element which is movable along the drive screw, and a pair of links which connect the nut element to a driven member. The links are rigidly connected to each other by a torsionally stiff member to prevent relative angular movement therebetween.Type: GrantFiled: May 15, 1985Date of Patent: February 17, 1987Assignee: Asea ABInventor: Karl-Erik Forslund