Patents by Inventor Jan Larsson
Jan Larsson 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).
-
Publication number: 20070238088Abstract: Disclosed are hydrophilic functionalized silica compositions that are stable and do not show significant pH increases upon heat sterilization. Also provided are methods to make hydrophilic functionalized silica compositions by reacting acidic silica particles with hydrophilic organosilanes. Further provided are methods of separating components in a mixture using hydrophilic functionalized silica compositions.Type: ApplicationFiled: March 29, 2006Publication date: October 11, 2007Inventors: Slawomir Rubinsztajn, David Demoulpied, Omayra de Jesus, Gregory Goddard, James Van Alstine, Jan Larsson, Mohan Amaratunga, Nicolas Thevenin
-
Patent number: 7188544Abstract: An industrial delta robot with an arm system rotatable in space and including a base section, a moveable plate, several multi-jointed pull rods and a telescopic axle arranged between the base section and the moveable plate, opposite ends of the pull rods and of the telescopic axle being connected with the base section and the moveable plate respectively, and the telescopic axle comprising an inner axle and an outer tube arranged on the inner axle and displaceable in a longitudinal direction where a pair of end-to-end torsional rigid bushings are arranged in a stationary manner on the outer tube in which the inner axle is mounted to be displaceable, the bushings being spaced apart at confronting inner ends to form a transversely extending lubrication pocket for continuous lubrication of the inner axle during movement relative to the bushings.Type: GrantFiled: November 4, 2003Date of Patent: March 13, 2007Assignee: ABB ABInventors: Fredrik Persson, Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson
-
Patent number: 7040136Abstract: An apparatus for calibration of an industrial robot, the apparatus comprising a body (7) having a first angle-measuring member (10) arranged for measuring an angle relative to the vertical ine about a first measuring axis (12) and mouting means (8, 9, 25) for mounting the body to the robot during the calibration. The apparatus comprises a second angle-measuring member (11) arranged for measuring an angle relative to the vertical line about a second measuring axis (13) differing from the first measuring axis.Type: GrantFiled: February 15, 2002Date of Patent: May 9, 2006Assignee: ABB ABInventors: Torbjörn Forss, Karl-Gunnar Johnsson, Jan Larsson, Stig Persson, Tomas Gustavsson
-
Publication number: 20050096854Abstract: The present invention refers to an apparatus, a method and a computer program product for modelling causality in a flow system, and more specifically for modelling variable causality in the flow system. The apparatus 100 comprises a data storage means 110 configured to store model element data related to modelled components of the flow system, a causal rule storage means 120 configured to store a plurality of causal relations determining the causal relationships between model elements. The apparatus 100 comprises a state determination unit 130 arranged to receive a status signal from the flow system, identify the component related to the received status signal, identify a model element modelling the identified component and determine an operating state of the identified component. Further, the apparatus comprises a processing means 140 configured to activate or deactivate a causal relation related to the identified model element and dependent on the determined operating state.Type: ApplicationFiled: January 31, 2003Publication date: May 5, 2005Inventors: Jan Larsson, Fredrik Dahlstrand, Bengt Ohman
-
Publication number: 20040244462Abstract: An apparatus for calibration of an industrial robot, the apparatus comprising a body (7) having a first angle-measuring member (10) arranged for measuring an angle relative to the vertical line about a first measuring axis (12) and mouting means (8, 9, 25) for mounting the body to the robot during the calibration. The apparatus comprises a second angle-measuring member (11) arranged for measuring an angle relative to the vertical line about a second measuring axis (13) differing from the first measuring axis.Type: ApplicationFiled: July 13, 2004Publication date: December 9, 2004Inventors: Torbjrn Forss, Karl-Gunnar Johnsson, Jan Larsson, Stig Persson, Tomas Gustavsson
-
Publication number: 20040143876Abstract: An industrial delta robot with an arm system rotatable in space and including a base section, a moveable plate, several multi-jointed pull rods and a telescopic axle arranged between the base section and the moveable plate, opposite ends of the pull rods and of the telescopic axle being connected with the base section and the moveable plate respectively, and the telescopic axle comprising an inner axle and an outer tube arranged on the inner axle and displaceable in a longitudinal direction where a pair of end-to-end torsional rigid bushings are arranged in a stationary manner on the outer tube in which the inner axle is mounted to be displaceable, the bushings being spaced apart at confronting inner ends to form a transversely extending lubrication pocket for continuous lubrication of the inner axle during movement relative to the bushings.Type: ApplicationFiled: November 4, 2003Publication date: July 22, 2004Inventors: Fredrik Persson, Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson
-
Patent number: 6577093Abstract: A manipulator for an environment with hygienic requirements, comprising a stationary element (1) with a plurality of drive means (2), and arms (3) attached to the drive means, which arms, via a respective linkage (4), support a movable element (5). The drive means (2) are enclosed in an enclosure (6) which encloses a gaseous coolant which, by a forced flow, takes up heat from the motors of the drive means.Type: GrantFiled: June 25, 2001Date of Patent: June 10, 2003Assignee: ABB ABInventors: Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson, Fredik Persson
-
Patent number: 6419211Abstract: A manipulator comprising a linkage with at least two links (1, 4) which have ball joints (3, 6) at their ends, and a spring device (10) which exerts a tensile force between the links. The spring device (10) comprises a first drawing device (11) with a first angle device (18), a second drawing device (12) with a second angle device (19), which are arranged, displaceable in parallel, side-by-side, and a spring member (13) arranged between the angle devices. The tensile force arises by the spring member exerting a compressive force against the angle devices.Type: GrantFiled: June 20, 2001Date of Patent: July 16, 2002Assignee: ABB ABInventors: Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson, Fredik Persson
-
Patent number: 5924330Abstract: A wrist unit for an industrial robot comprises a wrist housing detachably mounted to a distal end of a robot arm, the wrist housing containing rotatably mounted first and second, parallel, secondary drive shafts on the input ends of which are mounted cylindrical driven gears for engagement with the respective cylindrical drive gears located on primary drive shafts on the robot arm. The driven gears and the drive gears are so disposed that an imaginary line extending through the centers of the gears are offset from the center axis of the coaxial drive gears, the wrist housing being radially adjustable on the end of the robot arm for adjusting the gear clearance between the drive gears and the driven gears.Type: GrantFiled: July 24, 1997Date of Patent: July 20, 1999Assignee: Asea Brown Boveri ABInventors: Stefan Danielsson, Jan Gepertz, Jan Larsson
-
Patent number: 5894761Abstract: An industrial robot wrist unit comprising a wrist housing capable of being detachably mounted to the distal end of a robot arm, the housing having two fork arms supporting a pivotally mounted tilt housing which supports a rotatably mounted turntable on which an external implement can be mounted. The tilt housing is positively confined between the fork arms so that reactive forces stemming from the gearings in the housing are prevented from forcing the fork arms apart.Type: GrantFiled: July 24, 1997Date of Patent: April 20, 1999Assignee: Asea Brown Boveri ABInventors: Stefan Danielsson, Jan Gepertz, Jan Larsson
-
Patent number: 5487179Abstract: An arrangement for duplex transmission in a radio or similar device with a transmitter and receiver comprises a transmitter filter, receiver filter and preferably a transmitter/receiver device. The receiver filter may be a surface acoustic wave filter, and the transmitter filter and receiver filter are connected via a circulator. The arrangement also comprises a power detecting device for detecting the power into the receiver filter, and the power detecting device provides a feed-back signal to an arrangement for controlling the power out from a power amplifier arranged in front of the transmitter filter.Type: GrantFiled: February 3, 1994Date of Patent: January 23, 1996Assignee: Ericsson GE Mobile Communications Inc.Inventor: Jan A. Larsson
-
Patent number: 5472729Abstract: A method for the manufacture of an extra low calorie margarine, and a margarine produced according to said method is provided. The margarine has a fat content of between 15 and 38 percent by weight, whereby a water phase comprising starch having a viscosity of 100-800 cp, corresponding to a polymerization degree of more than 10.000, is solved in a liquid, is emulsified in a fat phase prepared from fats and/or oils and having an addition of 0.25-2 percent by weight as calculated on the ready margarine of an emulsifier to directly form a water-in-oil emulsion. The emulsion is pasteurized, cooled and packed. The special starch included in the water phase is pretreated in a first step by being acid-hydrolysis to reduce the viscosity of the starch. If necessary, in a second step, a functional group is introduced into the starch molecule for stabilizing the acid-hydrolyzed starch base, whereby the starch is made completely soluble in the water phase and can be heat treated and cooled without becoming gelified.Type: GrantFiled: November 24, 1993Date of Patent: December 5, 1995Assignee: L & L InternationalInventor: Jan A. Larsson
-
Patent number: 4531041Abstract: A spot welding gun adapted for use in robotic welding in which the electrode holding arms of the gun are each turnably journalled on an attachment means. One of the electrode holding arms or an operating lever thereof supports a cam member with a cam surface thereon. A pressure roller acts against said cam surface during transport of the welding gun between welding points and thereby holds each electrode holding arm in a respective fixed position relative to the attachment means.Type: GrantFiled: February 4, 1983Date of Patent: July 23, 1985Assignee: ASEA AktiebolagInventor: Jan Larsson
-
Patent number: 4507534Abstract: A handling robot for a current-consuming appliance (e.g. a welding head) comprises a pivotal stand with a first arm which is rotatably journalled in the stand and a second arm which is rotatably journalled in the first arm. The second arm has a sleeve which is journalled in the first arm. In said sleeve, a portion with a holder for the appliance is rotatably journalled. From a transformer, the supply current for the appliance is conducted to a rotatable contact device and to two preferably concentric tubular electrical conductors through the rotatable portion. The tubular conductors are utilized as conduits for cooling water.Type: GrantFiled: January 12, 1983Date of Patent: March 26, 1985Assignee: ASEA AktiebolagInventors: Herbert Kaufmann, Jan Larsson
-
Patent number: 4506123Abstract: An electrical contact device for transmitting heavy currents between relatively rotatable parts, for example between a fixed welding transformer and a rotatable unit which supports a spot welding gun. The contact device comprises a spaced-apart pair of annular, axially fixed, contact segments on one unit and, between these, an axially displaceable pair of annular contact disks on another unit. The disks are urged towards each other by springs and are thereby centered by a centering device to provide a well-defined clearance between each contact disk and the confronting contact segment, and the disks are pressed outwardly against the co-acting contact segments, to eliminate said clearances when current is to flow therebetween, by an annular operating device. The contact device has particular utility in robotics and prevents wear at the contacting surfaces on the appearance of relative rotation therebetween.Type: GrantFiled: January 12, 1983Date of Patent: March 19, 1985Assignee: ASEA AktiebolagInventors: Herbert Kaufmann, Jan Larsson
-
Patent number: D569886Type: GrantFiled: June 27, 2007Date of Patent: May 27, 2008Assignee: ABB ABInventors: Jan Larsson, Mats Olsson, Stig Persson