Patents by Inventor Ulf Mikael Eriksson
Ulf Mikael Eriksson 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: 11787022Abstract: A power screwdriver includes a housing having a vacuum chamber arranged to communicate with a source of sub-atmospheric pressure. The power screwdriver includes a motor, a bit drive spindle, and a bit supporting sleeve connected to the bit drive spindle. The rear end part of the bit supporting sleeve is surrounded by the vacuum chamber. The bit supporting sleeve is journaled by a bearing between a forward end part and a rear end part of the bit supporting sleeve. The bit supporting sleeve includes at least one longitude vacuum passage extending from its rear end part to its forward end part.Type: GrantFiled: June 25, 2019Date of Patent: October 17, 2023Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael Eriksson, Karl Göran Johansson
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Patent number: 11724367Abstract: An attachment part for a power tool includes an elongated housing including an upper housing part, a lower housing part and an interconnection structure that interconnects the upper and lower housing parts. An input gear for connection to an output shaft of a power tool is arranged at a first end of the housing. An output gear with an output interface is arranged at a second end of the housing. The interconnecting structure includes a sleeve member extending through a first central bore at the first end of the upper housing part, which sleeve member receives the input gear, and a fixation member extending through a second central bore at the first end of the lower housing part and which is arranged to be secured to the sleeve member to clamp the upper and lower housing parts. A tool assembly includes a power tool and the attachment part.Type: GrantFiled: June 20, 2019Date of Patent: August 15, 2023Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael Eriksson, Wojtek Malinowski
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Patent number: 11590643Abstract: A handheld electric tightening tool includes a housing and a sealing arrangement. The sealing arrangement is adapted to seal a first portion of the housing from a second portion of the housing and includes a sealing element and a spring. The sealing element includes a first portion adapted to bear against a shoulder formed in the housing, and a second portion adapted to bear against a portion of an outer surface of a rotating axle of the tool. The spring is adapted to at a first end bear against a shoulder formed in the sealing element and at a second end bear against a supporting element arranged on the axle, such that a force is exerted on the sealing element urging the sealing element against the shoulder formed in the housing.Type: GrantFiled: June 20, 2019Date of Patent: February 28, 2023Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventor: Ulf Mikael Eriksson
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Publication number: 20220258313Abstract: A power tool attachment part for a power tool, comprising: an elongate housing including an upper housing part and a lower housing part interconnected with the upper housing part, an input gear wheel configured to be connected to an output shaft of a power wrench, which input gear wheel is arranged at a first end of the housing, an output gear wheel with an output connection, which output gear wheel is arranged at a second end of the housing, an intermediate gear wheel arranged inside the housing and configured to transmit rotation of the input gear wheel to the output gear wheel, a socket arranged concentrically with and radially inside the output gear wheel, and a torque sensor configured to measure the strain on the socket and thereby obtain a measure of the torque at the output gear wheel.Type: ApplicationFiled: July 6, 2020Publication date: August 18, 2022Applicant: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Nabil Khalil RADIF, Ulf Mikael ERIKSSON
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Publication number: 20210276163Abstract: An attachment part for a power tool includes an elongated housing including an upper housing part, a lower housing part and an interconnection structure that interconnects the upper and lower housing parts. An input gear for connection to an output shaft of a power tool is arranged at a first end of the housing. An output gear with an output interface is arranged at a second end of the housing. The interconnecting structure includes a sleeve member extending through a first central bore at the first end of the upper housing part, which sleeve member receives the input gear, and a fixation member extending through a second central bore at the first end of the lower housing part and which is arranged to be secured to the sleeve member to clamp the upper and lower housing parts. A tool assembly includes a power tool and the attachment part.Type: ApplicationFiled: June 20, 2019Publication date: September 9, 2021Applicant: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael ERIKSSON, Wojtek MALINOWSKI
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Publication number: 20210268631Abstract: A power screwdriver includes a housing having a vacuum chamber arranged to communicate with a source of sub-atmospheric pressure. The power screwdriver includes a motor, a bit drive spindle, and a bit supporting sleeve connected to the bit drive spindle. The rear end part of the bit supporting sleeve is surrounded by the vacuum chamber. The bit supporting sleeve is journaled by a bearing between a forward end part and a rear end part of the bit supporting sleeve. The bit supporting sleeve includes at least one longitude vacuum passage extending from its rear end part to its forward end part.Type: ApplicationFiled: June 25, 2019Publication date: September 2, 2021Applicant: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael ERIKSSON, Karl Göran JOHANSSON
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Publication number: 20210268638Abstract: A handheld electric tightening tool includes a housing and a sealing arrangement. The sealing arrangement is adapted to seal a first portion of the housing from a second portion of the housing and includes a sealing element and a spring. The sealing element includes a first portion adapted to bear against a shoulder formed in the housing, and a second portion adapted to bear against a portion of an outer surface of a rotating axle of the tool. The spring is adapted to at a first end bear against a shoulder formed in the sealing element and at a second end bear against a supporting element arranged on the axle, such that a force is exerted on the sealing element urging the sealing element against the shoulder formed in the housing.Type: ApplicationFiled: June 20, 2019Publication date: September 2, 2021Inventor: Ulf Mikael ERIKSSON
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Patent number: 9751177Abstract: A drive arrangement in a pneumatic power tool includes a pneumatic motor with an output shaft, and a spindle for mounting a cutting element and which externally includes both a thread and an axial groove. A drive rotation of the spindle is driven by a drive gear that is engaged with the axial groove on the spindle and that is drivingly connected to the output shaft so as to rotate at a constant speed with respect to the output shaft. A feed gear is threaded upon the spindle and may be rotated with respect to the spindle in order to advance and retract the spindle. The feed gear is driven by one intermediate feed gear which is interchangeably drivingly connectable to the output shaft via a first and a second gear connection, respectively, so as to advance or retract the spindle.Type: GrantFiled: October 25, 2012Date of Patent: September 5, 2017Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael Eriksson, Wilhelm Mattias Georgsson
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Patent number: 9731393Abstract: A power tool includes a pneumatic motor with an output shaft, a spindle that is drivingly connected to the output shaft via a drive gear to provide a rotational movement to the spindle and via a feed gear to provide a translational movement to the spindle. A cylinder that governs the gear transmission to the feed gear is arranged to be translated between a retraction gearing position and an advancement gearing position. The retraction gearing includes a retraction torque limiting coupling adapted to be released when an operational torque (T) exceeds a retraction threshold torque (TR) in order to terminate retraction. A lock mechanism is arranged to selectively block the cylinder in the retraction gearing position through engagement between a tooth of a ratchet on the lock mechanism and a shoulder on the cylinder. The lock mechanism assures that the cylinder is kept in the retraction gearing position during an initial phase of the retraction of the spindle.Type: GrantFiled: October 25, 2012Date of Patent: August 15, 2017Assignee: Atlas Copco Industrial Technique ABInventors: Ulf Mikael Eriksson, Wilhelm Mattias Georgsson
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Patent number: 9687914Abstract: A drilling tool includes a spindle, a housing at least partly housing the spindle, a feed gear drivingly connected to a motor and threaded around the spindle to feed the spindle in an axial direction of the spindle by mutual rotation between the feed gear and spindle during a drilling process, and a micro peck unit which includes an undulated cam profile and a follower arranged to bear against the cam profile, and which produces an oscillating movement of the feed gear and the spindle upon rotation of the feed gear during a drilling process. The micro peck unit further includes interposable rolling elements arranged to be re-positioned into a gap between two circular contact surfaces in order to separate the cam profile from the follower, such that no oscillating movement is produced by the unit when the interposable rolling elements are positioned inside the gap between the contact surfaces.Type: GrantFiled: October 21, 2013Date of Patent: June 27, 2017Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael Eriksson, Lars Joakim Edberg
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Publication number: 20150273596Abstract: A drilling tool includes a spindle, a housing at least partly housing the spindle, a feed gear drivingly connected to a motor and threaded around the spindle to feed the spindle in an axial direction of the spindle by mutual rotation between the feed gear and spindle during a drilling process, and a micro peck unit which includes an undulated cam profile and a follower arranged to bear against the cam profile, and which produces an oscillating movement of the feed gear and the spindle upon rotation of the feed gear during a drilling process. The micro peck unit further includes interposable rolling elements arranged to be re-positioned into a gap between two circular contact surfaces in order to separate the cam profile from the follower, such that no oscillating movement is produced by the unit when the interposable rolling elements are positioned inside the gap between the contact surfaces.Type: ApplicationFiled: October 21, 2013Publication date: October 1, 2015Applicant: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Ulf Mikael Eriksson, Lars Joakim Edberg
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Patent number: 9089939Abstract: A drilling unit with automatic drill shaft feeding is provided. The feeding velocity can be changed by external mounting of exchangeable gearing cassettes having a desired gear ratio.Type: GrantFiled: November 4, 2009Date of Patent: July 28, 2015Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE AKTIEBOLAGInventors: Ulf Mikael Eriksson, Wilhelm Mattias Jacobsson
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Publication number: 20140318290Abstract: A power tool includes a pneumatic motor with an output shaft, a spindle that is drivingly connected to the output shaft via a drive gear to provide a rotational movement to the spindle and via a feed gear to provide a translational movement to the spindle. A cylinder that governs the gear transmission to the feed gear is arranged to be translated between a retraction gearing position and an advancement gearing position. The retraction gearing includes a retraction torque limiting coupling adapted to be released when an operational torque (T) exceeds a retraction threshold torque (TR) in order to terminate retraction. A lock mechanism is arranged to selectively block the cylinder in the retraction gearing position through engagement between a tooth of a ratchet on the lock mechanism and a shoulder on the cylinder. The lock mechanism assures that the cylinder is kept in the retraction gearing position during an initial phase of the retraction of the spindle.Type: ApplicationFiled: October 25, 2012Publication date: October 30, 2014Inventors: Ulf Mikael Eriksson, Wilhelm Mattias Georsson
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Publication number: 20140290974Abstract: A drive arrangement in a pneumatic power tool includes a pneumatic motor with an output shaft, and a spindle for mounting a cutting element and which externally includes both a thread and an axial groove. A drive rotation of the spindle is driven by a drive gear that is engaged with the axial groove on the spindle and that is drivingly connected to the output shaft so as to rotate at a constant speed with respect to the output shaft. A feed gear is threaded upon the spindle and may be rotated with respect to the spindle in order to advance and retract the spindle. The feed gear is driven by one intermediate feed gear which is interchangeably drivingly connectable to the output shaft via a first and a second gear connection, respectively, so as to advance or retract the spindle.Type: ApplicationFiled: October 25, 2012Publication date: October 2, 2014Inventors: Ulf Mikael Eriksson, Wilhelm Mattias Georgsson
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Publication number: 20140034346Abstract: A speed control device for limiting the idle and operating speed of a pneumatic power tool driven by an air turbine (20) and comprising an inlet passage (16) for supplying pressure air at a pressure (P1), one or more nozzles (25) for directing supplied motive pressure air onto the turbine wheel (22) of the air turbine (20), and a speed governor (21) with a movable valve element (43) biased by a turbine speed responsive control pressure (P3) and arranged to control the flow of supplied pressure air from the pressure air inlet passage (16) to the nozzles (25), wherein a pressure regulator (60) controlled by the pressure air supply pressure (P1) is arranged to adjust the control pressure (P3) by adjusting the size of a bleed passage (66) communicating with the atmosphere in response to the actual level of the pressure air supply pressure (P1) such that a decreasing pressure air supply pressure (P1) results in an decreased area of the bleed passage (66) and a following increased control pressure which results inType: ApplicationFiled: April 13, 2012Publication date: February 6, 2014Applicant: ATLAS COPCO INDUSTRIAL TECHNIQUE ABInventors: Dan Eklund, Ulf Mikael Eriksson
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Publication number: 20120275871Abstract: An improved pneumatic ADE-machine with a built-in logic has a clutch in the power transmission chain between a first drive gear and a second driven gear. The clutch includes two clutch parts (D, F), whereof a first part (D) is axially biased by a spring (C). Movable elements (E) are arranged between the clutch parts, which transfer the rotation from the first to the second clutch part, and an actuator (H) is arranged in connection with the first spring biased clutch part (D). When a feed force on a drill during drilling exceeds the biasing force of the spring, the movable elements displace the spring biased clutch part axially, which triggers the actuator (H) to send a corresponding signal to the machine logic.Type: ApplicationFiled: September 24, 2010Publication date: November 1, 2012Applicant: ATLAS COPCO TOOLS ABInventors: Ulf Mikael Eriksson, Wilhelm Mattias Georgsson
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Publication number: 20110255930Abstract: A drill spindle unit includes a housing, and a rotatable and longitudinally displaceable drill spindle provided with axial keyways for cooperation with internal projections of a drill spindle surrounding rotation drive sleeve, and a screw thread for cooperation with an internal thread of a drill spindle surrounding feed drive sleeve. Bearings for radial as well as axial support of the drill spindle relative to the housing are provided. The radial support bearings are arranged to transfer radial forces only, and a thrust bearing is arranged to transfer axial forces between the housing and the drill spindle. The thrust bearing is associated with an axial load sensing device by which signals are generated in response to the axial load applied on the drill spindle.Type: ApplicationFiled: November 3, 2009Publication date: October 20, 2011Applicant: ATLAS COPCO TOOLS ABInventors: Ulf Mikael Eriksson, Wilhelm Mattias Jacobsson
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Publication number: 20110236144Abstract: A drilling unit with automatic drill shaft feeding is provided. The feeding velocity can be changed by external mounting of exchangeable gearing cassettes having a desired gear ratio.Type: ApplicationFiled: November 4, 2009Publication date: September 29, 2011Applicant: ATLAS COPCO TOOLS ABInventors: Ulf Mikael Eriksson, Wilhelm Mattias Jacobsson