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Atlas Copco Tools AB Patents
Assignee:
Atlas Copco Tools AB
Address:
Nacka, SE
No. of patents:
128
Patents:


1 2 3










Patent Number Title Of Patent Date Issued
6821157 Portable tool connected to an operation controlling and /or monitoring unit via a cable November 23, 2004
A portable tool is connected to a remotely located operation controlling and/or monitoring control it via a multi-core cable. The multi-core cable is connected to the tool by a standard type multi-connector plug and jack connection to supply electric power and/or electric signals between
6785591 Method for determining optimum screw joint tightening parameter values by process simulation August 31, 2004
A method is provided for determining the optimum control parameter values for a screw joint tightening process carried out by a power wrench which is controlled by a programmable control system utilizing the determined parameter values. The control system is provided with screw joint
6725943 Target torque detection at power wrenches having mechanical release clutch April 27, 2004
A method and a power wrench for detecting the attainment of a target torque level in a screw joint tightening process, wherein an override type torque responsive release clutch (17) is used in the power wrench for defining the target torque level, comprising a microphone (22) mounted in
6712157 Portable power tool with rotation motor and grease lubricated angle drive March 30, 2004
A power tool of the type comprises a housing (10), a rotation motor (11), an output shaft (12) carrying and rotating a working implement, and a grease lubricated angle drive (13) coupling the output shaft (12) to the motor (11), wherein the angle drive (13) includes a gear chamber (30)
6705834 Axial flow turbine type rotor machine for elastic fluid operation March 16, 2004
An axial flow turbine machine intended for elastic fluid operation is provided which includes a rotor with two or more sections each carrying an array of radially directed drive blades, and a stator having a number of fluid inlet nozzles and one or more sections each carrying a circu
6698533 Portable power tool with grease lubricated angle drive March 2, 2004
A portable power tool is provided which includes a housing having an angle drive chamber, a rotation motor, an output spindle, and a grease lubricated angle drive that is located in the angle drive chamber and that includes a drive pinion connected to the motor and a bevel gear connected
6662882 Power nut runner with torque responsive power shut-off capacity December 16, 2003
A power nut runner with a torque responsive shut-off capacity includes a housing (11,12,13), and a rotation motor (10) connected to an output shaft (28) via a torque responsive release clutch (26) in which torque is transferred via a cam mechanism (31, 35, 36) between a driving clutch ha
6539603 Method for self-programming a power nutrunner control system during initial tightening processes April 1, 2003
A method for self-programming a computerized power nutrunner control system for tightening a number of similar screw joints to a desired final torque level (M.sub.F) is provided. The method includes the steps of: (i) tightening initially at a low speed one of the screw joints up to the
6527060 Portable power tool with separate pistol-type handle March 4, 2003
A portable power tool having a housing with a pneumatic motor, an output shaft extending in a longitudinal direction of the housing and connected to the motor, and a pistol type handle which a power supply for connecting the motor to a power source and which is fixable relative to the ho
6474283 Valve lash setting method and device for executing the method November 5, 2002
A method and a device for setting the valve lash to a desired value at I.C. engines, including application of a motor driven coaxial double spindle (22) on each valve adjusting screw (18) and lock nut (19) followed by a number of consecutive operation steps comprising: tightening the adj
6464572 Portable power tool with an anti-vibration balancing device October 15, 2002
A portable power tool is provided which has a rotating output shaft (13) journalled in two axially spaced bearings (15, 16). A working implement mounting device (19) and an anti-vibration balancing unit (20) are provided at a forward end (13a) of the output shaft (13). And an auxiliary
6415490 Portable power tool for mounting via a press fit a machine part onto a shaft July 9, 2002
A portable power tool for mounting via press fit a machine part, like a pulley (37) onto a shaft (16) by the application of an axial press force on the pulley (37), comprises a housing (17), a reaction spindle (23) with a threaded end portion (34) for engaging a threaded bore (35) in the
6390205 Power tool system with programmable control unit May 21, 2002
A power tool system comprises a portable power tool (10), an operation control device (11) including an integrated memory (16) for storing power tool operation data, and an auxiliary memory module (18) normally containing the same power tool operation data as the integrated memory (1
6341533 Method for determining the installed torque in a screw joint at impulse tightening and a torque January 29, 2002
A basic method is provided for determining the installed torque in a screw joint which is being tightened by a series of repeated torque impulses, wherein the rotational movement of the screw joint is detected during each impulse, the point in which the screw joint ceases to rotate is de
6336790 Axial flow power tool turbine machine January 8, 2002
An axial flow power tool turbine motor for operation with an elastic fluid, like pressured air, includes a housing (12), a rotor (11) rotatively journalled in the housing (12) and formed in one piece with drive blades (24) arranged in axially spaced circumferential rows (C, A, C, E, G, I
6314817 Method for tightening a threaded fastener above its yield point November 13, 2001
A method for determining the axial load in a threaded fastener when tightened above its yield point by using the variation in travel time (.DELTA.t) for ultrasonic waves induced in the fastener to determine the axial load (N) in the fastener, both in the yield point and at the final
6186879 Rotary power tool with an extended output shaft February 13, 2001
A rotary power tool having a housing (10) with a tubular extension (12), a rotation motor located in the housing, and an output shaft (13), wherein the output shaft (13) comprises a first section (23), a second section (26) and a connection device (30) forming a drive connection between
6179552 Speed control unit for a pneumatic rotation motor January 30, 2001
A speed control unit for a pneumatic rotation motor having a stator (10) with an air inlet passage (14), a rotor (11) journalled in the stator (10). The speed control unit includes a speed governor (26) operated by two or more fly-weight members (28), and an overspeed safety device (27).
6163094 Portable power tool with a heat screening means December 19, 2000
A portable power tool including a housing (10) intended for manual support of the tool and formed with an inner surface (29), and a motor (11) supported in the housing (10) and having a stator (22) surrounded by the inner surface (29) of the housing (10) leaving a space (30) wherein at
6155355 Torque impulse tool with automatic power shut-off comprising two inertia bodies December 5, 2000
A torque impulse tool for screw joint tightening includes a housing, a pneumatic motor with a rotor, an output shaft, a hydraulic impulse generator coupling the rotor to the output shaft, and an automatic power shut-off device including a pressure air inlet valve communicating with t
6135213 Pneumatic power wrench with adjustable exhaust restriction October 24, 2000
A pneumatic power wrench having a rotation motor supported in a housing (11), an output shaft (13) for connection to a screw joint to be tightened, a pressure air inlet passage (14) controlled by a throttle valve (18), and an exhaust air outlet passage (16) including an automatic out
6134973 Method for determining the installed torque in a screw joint at impulse tightening and a torque October 24, 2000
A basic method is provided for determining the installed torque in a screw joint which is being tightened by a series of repeated torque impulses. The rotational movement of the screw joint is detected during each impulse. The point in which the screw joint ceases to rotate is detected.
6110045 Hydraulic torque impulse generator August 29, 2000
A hydraulic torque impulse generator (16) of the kind having a motor rotated drive member (18;50) formed with a fluid chamber (19;53), an impulse receiving output member (20;51) coaxial with the drive member (18;50) and extending into the fluid chamber (19;53), a hydraulic peak gener
6109366 Power tool with lubricated angle drive August 29, 2000
A power tool with a rotation motor, a rotating output shaft (26), and an angle drive (11) connecting the motor to the output shaft (26) and comprising a gear casing (12), a pinion gear (14) connected to the motor, a crown wheel (17) connected to the output shaft (26), and a lubricant
6105687 Portable power tool with a power supply line support device August 22, 2000
A portable power tool comprises a housing (10), a motor, a handle (11), and a connection device for fixed connection of a terminal end of a flexible power supply line (16), wherein a support device (17) is mounted on the housing (10) for supporting the power supply line (16) at a support
6076438 Power nutrunner with torque release clutch and a setting tool June 20, 2000
A power nutrunner includes a planetary reduction gearing (12) and a torque limiting release clutch (13) disposed between a ring gear (25) of the reduction gearing (12) and the tool housing (11), wherein the ring gear (25) is tubular in shape and has an outer annular shoulder (41) at its
6062114 Power nutrunner May 16, 2000
A power nutrunner has two consecutive planetary reduction gearings (12) and a torque limiting release clutch (13) disposed between a common ring gear (25) of the reduction gearings (12) and the tool housing (11). The ring gear (25) is tubular in shape and has an outer annular shoulder (4
6047455 Method for simultaneous tightening of two or more screw joints April 11, 2000
A method for simultaneous tightening of two or more screw joints to a desired pretension condition by means of a nut running tool having two or more output spindles each having an adjustable output torque, wherein each one of the output spindles is individually operated according to at l
6034463 Stator for an electric machine March 7, 2000
A process for fabricating a stator for an electric machine having a tubular unslotted ferromagnetic flux collector ring (16) and stator winding coils (18, 19, 20) with two legs which extend substantially axially along the inner cylindrical surface of the flux collector ring (16). Each wi
6005489 Electric power tool with code receiver December 21, 1999
An electric power tool includes a power supply which is one of a replaceable battery unit, a rechargeable battery unit, and a cable connection for detachably connecting to a mains power supply. A code receiver is provided for receiving a code signal from a code signal emitting device
5967243 Portable power tool October 19, 1999
A portable power tool for operating a wheel type working element comprises an output spindle (12) which is drivingly connected to a rotation motor (11) and which is provided with an automatic ball type balancing device (21) and a working implement mounting device (22), wherein the balanc
5954142 Handle for a pneumatic power tool September 21, 1999
A pneumatic power tool includes a housing (10) with a pistol handle (11), a pneumatic motor provided in the housing (10), a pressure air inlet passage (13) and an exhaust air passage (14) extending substantially in parallel through the pistol handle (11), and a manually operable throttle
5911281 Pneumatic power tool June 15, 1999
A pneumatically or electrically powered power tool having a rotating working implement carrying output spindle (14), an exhaust or cooling air outlet passage (21), air outlet openings communicating the outlet air to the atmosphere and comprising a first section (22) located on one side o
5901794 Pneumatic power wrench May 11, 1999
A pneumatic power wrench which comprises a rotation motor (11) lodged in a housing (10) having air inlet and outlet passages (16, 23) for communicating air to and from the motor (11), respectively, and a power transmission for connecting the motor (11) to an output shaft (14), wherei
5893420 Multi-core cable connector for power wrench April 13, 1999
A cable connector for assembly and mounting on a front section of a housing of a power wrench is arranged to connect at least one operation parameter sensor of the power tool to a multi-core cable. The cable connector includes a multi-contact cable connector plug carried on the multi-cor
5839950 Portable power grinder November 24, 1998
A portable power grinder for operating a wheel type of grinding tool, comprising an output spindle (12) drivingly connected to a rotation motor (11) and provided with a threaded coaxial bore (23) for receiving a grinding tool clamping screw (24) and with a radial support flange (25)
5836811 Air tool suspension device November 17, 1998
A suspension device for providing a universally movable support of a pneumatic power tool of the type having a housing (10) with a pistol grip handle (11), and comprises an arc-shaped yoke (31) with a slip member (38) movably guided thereon and connectable to an overhead balancing device
5797462 Pneumatic power tool August 25, 1998
A pneumatic power tool comprises a housing (10) with a pistol type handle (11), a motor located in the housing (10), a pressure air inlet passage (13) and an exhaust air passage (14) both extending through the handle (11) in substantially parallel with each other, and a manually operable
5775999 Hydraulic torque impulse generator having a pressure responsive bypass flow valve July 7, 1998
A hydraulic torque impulse generator having a drive member (10) with a fluid chamber (12) and an output spindle (11) extending into the fluid chamber (12) and being provided with a movable seal element (19) and an axial seal ridge (22) for cooperation with oppositely disposed axial seal
5775186 Power screw driver July 7, 1998
A power screw driver for tightening self-tapping screws comprises a housing (10), a rotation motor, an output shaft (12), a torque limiting release clutch (11) having torque transferring cam unit (17, 19) and a spring biassed thrust element (20) exerting an engagement force on the cam un
5766062 Portable power tool June 16, 1998
A portable power tool for operating a wheel type grinding or cutting working implement comprises a housing (10), a rotating output spindle (11) with a working implement supporting flange (14), a safety guard (16) adjustably supported on a guide flange (15) on the housing (10), and a
5750932 Multi-core cable for electrically communicating a hand held power nutrunner with a power supply May 12, 1998
A multi-core cable (15) for communicating electric power and electrical signals to and from a hand held power nutrunner (10). Three longitudinal sections (16-18) are arranged in parallel with each other, and each has a geometric center (20-22) such that in any cross section of the cable
5714827 Stator for an electric machine February 3, 1998
A stator for an electric machine comprises a tubular unslotted ferromagnetic flux collector ring (16) and stator winding coils (18, 19, 20) having two legs which extend substantially axially along the inner cylindrical surface of the flux collector ring (16). Each winding coil leg is
5704434 Hydraulic torque impulse mechanism January 6, 1998
A hydraulic torque impulse mechanism comprising a rotatively driven drive member (10) which has a concentric fluid chamber (12) as well as radially acting cams (25, 26, 28), an output shaft (16) which extends into the fluid chamber (12) and which has two radially extending cylinder bores
5692575 Reversible power wrench December 2, 1997
A reversible power wrench includes a housing (10), a rotation motor, and a power transmission coupling the motor to an output shaft (21), and further includes a reduction gearing (20) with first planetary gearing (28) for transferring torque in the "forward" direction of rotation and a s
5651726 Mounting apparatus for grinding wheels July 29, 1997
A mounting apparatus for securing alternative grinding wheels to a threaded portion of an output shaft of a portable rotary grinding machine, the mounting apparatus comprising a threaded clamping device which cooperates with the threaded portion of the output shaft; a support hub which r
5645130 Hydraulic torque impulse mechanism July 8, 1997
A hydraulic torque impulse mechanism intended for a torque delivering tool and including a rotatively driven drive member (10) provided with a concentric fluid chamber (12) and radially acting cam elements (25, 26, 28), an output shaft (16) extending through the drive member (10) fluid
5577425 Angle type power nutrunner November 26, 1996
An angle type power nutrunner having a housing (10) with a rotation motor, an angle head (15) with an output shaft (13), and a thread connection (21) including a lock nut (22) for securing the angle head (15) to the housing (10). The housing (10) is provided with a first group of radial
5575486 Grooved run-in face seal November 19, 1996
An oil seal for sealing off a fast rotating shaft (10) relative to a housing (11) comprises a first seal element (15) mounted on the shaft (10), a second seal element (18) resiliently mounted in the housing (11), both seal elements (15, 18) having cooperating contact surfaces (25, 26),
5569118 Torque responsive release clutch mechanism October 29, 1996
A torque responsive release clutch mechanism for a pneumatic power nutrunner having a housing (16) with an air inlet passage (11) and an air motor (12). The clutch mechanism includes a driving clutch half (22) with pockets (33) for two or more torque transferring balls (24), a bias sprin
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