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Stridsberg Innovation AB Patents
Assignee:
Stridsberg Innovation AB
Address:
Stockholm, SE
No. of patents:
13
Patents:












Patent Number Title Of Patent Date Issued
7196527 Redundant compact encoders March 27, 2007
A position transducer for a rotary member such as the rotor of a motor has a rotating encoder disc and flat, disc-shaped elements interacting with the encoder disc to produce position dependent signals. The encoder disc has at least one active element such as metal surfaces configured so
7098619 Actuator and movement linkage system August 29, 2006
An actuator and movement linkage system for moving a load, such as a control surface of aircraft, in relation to a carrying structure includes an electric motor system, an actuator device connectable or connected to the load to move the load, the actuator device connected to the electric
6921999 Electric motor July 26, 2005
An electromagnetic rotary actuator is driven by a single-phase voltage. Permanent magnets on a rotor interact over a part-cylindrical small airgap with a soft-iron stator having pole teeth that carry at least one winding for rotating the rotor within a limited angular range, the airgap h
6885162 High reliability motor system April 26, 2005
A brushless electric motor system comprises a rotor and a stator comprising poles. Electrical phase windings have coils (U1-6, V1-6, W1-6) wound around the poles. Power switches (T1-24) controlled by a control device supply electric current the windings from positive and negative rails
6756582 Position transducer June 29, 2004
An encoder for detecting the angular position of a shaft of an electric motor comprises an encoder disc (101) having tracks (515) sensed by detectors in reading heads (106a, 106b). Analog position signals from the detectors are sampled in sampling circuits (1701-1704) at times given by
6740002 Hybrid powertrain May 25, 2004
A method and an apparatus control a car equipped with an automatic transmission having a lockup clutch. When the lockup clutch is in the lockup state, a variation of a generated torque is detected. When the range of the torque variation detected exceeds a predetermined value, an engi
6630659 Position transducer October 7, 2003
A compact position and velocity transducer having a high speed resolution and a fast speed response and that does not place much demand on the precision of the bearings. The transducer includes an optical encoder that, when assembled in motors, is assembled on a short protruding part of
6191415 Position transducer February 20, 2001
A position transducer has a moving modulating portion that can move to various positions through rotation, for example. The position transducer provides at least one analog signal that varies periodically with the moving position of the modulating portion, where the movement of the m
6172359 Position transducer January 9, 2001
An encoder disc (101) of an optical position transducer is mounted on a short protruding part (102a) of a rotor (102) of an electric motor close to torque creating parts. One part of the optical system, normally the light emitter part (108, 115), is insertable between the rotor (102) and
6084234 Position transducer July 4, 2000
A position transducer is provided that includes an encoder disc and at least two detector devices arranged to read at least one track on the encoder disc having low resolution in order to produce position signals. The detector devices each provide position signals to a processing device
5998783 Heat protected position transducer in an electric motor December 7, 1999
An encoder disc (101) of an optical position transducer is mounted on a short protruding part (102a) of a rotor (102) of an electric motor close to torque creating parts. One part of the optical system, normally the light emitter part (108, 115), is insertable between the rotor (102) and
5917259 Coupling of an electric motor to a load June 29, 1999
An improved connection coupling for providing rotary motion from an electric motor rotor to a load wherein a mechanical coupling element is attached to an end of the rotor and to the shaft of the load. The free end of the rotor includes a cavity which extends axially from the end surface
5751089 Brushless DC motors/generators May 12, 1998
In a rotational/linear brushless DC motor/generator the rotor/slide has many equally spaced permanent magnet poles of alternating polarity and it has no or few magnetically permeable iron parts. These magnets cover typically slightly more than half the pole pitch in trapezoidal embod

 
 
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