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Patent Searching and Data


Matches 601 - 650 out of 13,864

Document Document Title
WO/1998/024168A1
An electric machine comprised of a barrel (7) with a shaft (8) on which is mounted an armature and a first and second inductance coil (10), as well as at least two additional inductance coils (10) plugged into a collector (11). The elect...  
WO/1998/010505A1
DC motor with brushes, having a rotor (4) comprising an axle (1) and packets of soft-iron lamellas perpendicular to the axle (1) and constituting poles. Wire terminals of coils on the poles are attached to a collector. The rotor is withi...  
WO/1998/010506A1
Rotary electric machine comprising a stator with permanent magnets and a rotor having an iron core and a winding. The rotor winding comprises a number of discrete coils (11A-C) each being provided with an iron core (10A-C) and so arrange...  
WO/1998/002952A1
The invention relates to a dc motor having a rotor (13) which is provided with permanent magnets and coupled to a driven shaft (9), having a stator (21) which has windings at least of one coil (19), and having a commutator device (31) wh...  
WO/1997/049163A1
This invention relates to a DC motor having a balancing effect. It uses a permanent magnet as a convex-type magnet pole. The armature is made to be a layered structure of convex pope, so that the armature can be operated in an intense ma...  
WO/1997/040572A1
A d.c. electric machine operating on the axial field principle, operable as a motor and a generator. The machine has a rotor (26) which can run in a housing (12) and having a plurality of electromagnets spaced from the axis of rotation, ...  
WO/1997/036367A1
The invention relates to ac series motors, in particular universal motors, which have a field magnet (16) with field pole arrangements each comprising two pole parts (8, 13), and the field magnet (16) is designed for a predetermined rota...  
WO/1997/032387A1
A method for making a wire-wound rotating part for an electrically driven machine, wherein a sheet metal pack (13) and a commutator (16) spaced therefrom are attached to a shaft (10), and conductive strands are wound around the sheet pac...  
WO/1997/022175A1
The invention relates to a series motor (19) with an electrical brake and comprising an armature (20), provided with an armature winding (25), and comprising at least two field coils (22, 23), arranged on pole shoes (21, 24), and switchg...  
WO/1997/011520A1
For economical and yet sensitive rotor speed or position detection by means of a Hall sensor (3) induced by a magnetic field pulsed in proportion to the rotation speed, it is proposed that the Hall sensor (3) be fitted near the outer per...  
WO1994017301A3  
WO1997001466A3  
WO/1997/002646A1
The disclosure pertains to an electric motor with at least two permanent magnets (11, 12) forming magnetic poles and with a device for determining the position, speed and/or direction of the rotor (13). The device is provided with at lea...  
WO/1997/001468A1
Disclosed is a windshield wiper in which the feed line to a wash nozzle (206) runs through the drive shaft (11) of the windshield wiper arm. The feed line consists of a small metal pipe (200) which is passed through the hollow shaft (11)...  
WO/1997/001467A1
The invention concerns a mechanism housing wherein the housing base member (20) is closed by a cover (17). The housing base member (20) is made of plastics whilst the cover (17) is made of metal. The object of the invention is to configu...  
WO/1997/001464A1
Decribed is a drive for a windshield wiper, consisting of an electric motor (1), a gear train (2) and an electronic unit (23) to control the motor. Provided also is a parking position switch that is operated by the main gearwheel (6) of ...  
WO/1997/001466A2
The invention concerns a housing (3) for a mechanism (2), in particular a mechanism (2) for a windscreen wiper system. The mechanism housing (3) is made of glass fibre-reinforced plastics, is open on one side and is closed there by a met...  
WO/1997/001465A1
The invention concerns a mechanism housing (3) with integrated electronics, the mechanism (2) and the electronics unit (23) being disposed in a common basic body (20). The basic body (20) comprises two recesses (25, 60) whose openings le...  
WO/1996/041410A1
In an ordinary DC motor in a windshield wiper, operating speed tends to increase as the motor brushes become seated. The invention counteracts this tendency by providing a brush geometry which causes the effective angular position of a b...  
WO/1996/036101A1
The invention can be used in electrical engineering, specifically in direct current (d.c.) machines, and in any other technical field in which electrical drives and generators are used. In essence, the invention lies in the fact that the...  
WO/1996/033547A1
A drive device with an electric motor with permanent magnets (12, 13) and a pole pot (10) and a relay (2) switching the motor current with at least one electromagnet, containing a relay coil (11, 32) and a relay armature (21), and with a...  
WO/1996/024067A1
Such a device has a Hall sensor (7) fitted on a printed circuit board (8) as an SMD component. To a rotor spindle (3) of an electric motor is fitted a magnetic wheel (6) which generates a rotary magnetic field as it rotates. According to...  
WO/1996/019662A1
Lower-layer coil ends (537) and upper-layer coil ends (534) forming the first and second connecting portions are held in abutment with the end face of an armature core (500) through insulators and, hence, the inertias of cylindrical comm...  
WO/1996/005649A1
A DC electric motor system includes a rotor portion having a commutator and a coil winding mounted radially about a shaft, and a stator portion including two rows of spaced permanent magnets about either side of the rotor coil winding. P...  
WO/1995/032543A1
A multi-speed, direct current motor (120) incorporates a high speed (24) brush disposed between the low speed (22) and the common ground (26) brushes and having a non-arcuate end face (25) which , unlike the conventional arcuate brush en...  
WO1995017779A3  
WO/1995/019656A1
A direct current motor (10) having an armature (62) supported between magnetic pole plates (12, 14, 42, 56) having pairs of dual pole shoes (34, 34'-35, 35'; 36, 36'-37, 37') extending between the plates in diametric opposition with resp...  
WO/1995/017779A2
An electrical machine, such as an electric motor, dynamo or alternator has a casing (26) with cooling vents (64) enabling cooling fluid (F) to flow into and out of the casing when the rotor (10) of the electrical machine rotates. The rot...  
WO/1995/016298A1
A direct current motor (10) having an armature (28) axially supported between magnetic pole plates (15-16, 17-18, 19-20) having opposing pairs of pole shoes (50-52; 60-62) extending in interdigital parallel opposition with respect to the...  
WO1994029935A3  
WO/1995/002915A1
An electromechanical machine (10) includes a field producing assembly (18) which is constructed so as to have an annular gap (20) circumferentially disposed about an axis of rotation and to produce a magnetic field across the gap (20) wh...  
WO/1995/002916A1
A driving device (21) for a vehicle part adjustable between end positions has an electric motor (22) linked by a reducing gear (23) to a driving pinion (20) that seats on a driven shaft and is in turn in driving relationship with the adj...  
WO/1994/029935A2
Disclosed is an improvement to the stability of D.C. motor brushes mounted in brush boxes with wings, is improved by angling the wings toward the commutator such that the brush spring contacts the brush at one or more points intermediate...  
WO/1994/028613A1
A permanent magnet direct current motor (5) and a battery means (12) for providing electrical power to the permanent magnet direct current motor is disclosed, where the resistance of the permanent magnet direct current motor is substanti...  
WO/1994/026017A1
Direct current machines with duplex or multiplex lap windings are usually provided with 2nd or 3rd type equalizers arranged between the armature core disk package and the armature shaft. These embodiments require spider shaft of costly c...  
WO/1994/021027A1
The invention relates to an inverse speed motor, especially a universal motor, with a braking device and a stator having a field winding and a rotating armature powered via a commutator and brushes and a suitable circuit for switching th...  
WO/1994/017301A2
An electric motor has a multislotted rotor (16) and a multipole stator accommodated in a housing (12). The stator poles (14) extend in the direction of the rotor axis (6) whereas the rotor slots (22) are inclined with respect to the roto...  
WO/1994/016491A1
A direct current motor (10) having one or more armatures (70, 72) supported between magnetic pole plates (12, 14) having pairs of pole pieces (34-35, 36-37, 38-39, 40-41) extending, in diametric opposition with respect to the periphery o...  
WO/1994/013051A1
Brushless dynamoelectric machines (30) utilizing conventional DC armature construction. The winding (17) of the armature (31) is modified by providing a set of three leads (37, 38, 39) to its coil ring circuit (36) at point spaced angula...  
WO/1994/011162A1
The invention relates to a power tool (1) which in the embodiment is portable, self-contained and which has a push button switch (3), and power means in the form of ten 1.2 volt rechargeable batteries (12), rechargeable v_i_a_ a rechargi...  
WO/1994/011941A1
The invention relates to a Johnson 50274 D.C. permanent magnet motor having a 3- and 7-tooth armature. Figures 1 (a, b, c, d) relates to a conventional 32 turn per coil wound Johnson 50274 motor, each of the wound poles having a 0.75 mm ...  
WO/1993/021682A1
A direct current motor (10) having a plurality of armatures (43-45) supported between magnetic pole pieces (12-14) energized by direct current through one or more iron core coils (18-19) interposed between the magnetic pole pieces. Wirin...  
WO/1993/019458A1
An active attenuation system for a DC motor (11) which yields global vibration reduction of slot or other motor induced tonals at the plate on which the motor is mounted without modifying the construction of the motor. The system compris...  
WO/1993/017486A1
A device for eliminating overvoltages caused by a magnetic armature reaction in armature phase windings of dynamo-electric machines, by compensating for the natural mutual inductances between each phase winding and the others in the arma...  
WO/1993/015546A1
An electric motor to drive the road wheel of a wheelchair has a stator (6) and a rotor (12, 13), both of which are arranged axially symmetrically around a motor shaft (1) and at least one of which is stored by an electric power store to ...  
WO/1993/008635A1
A rotary electric machine constructed on the basis of a new operational principle, which is operated by utilizing a magnetic repulsive force as its driving force. In the rotary electric machine, a rotor and a stator are provided concentr...  
WO/1993/008634A1
A rotary electric machine constructed on the basis of a new operational principle, which is operated by using a magnetic repulsive force as its driving force and can be utilized as a motor, etc. In the rotary electric machine, provided a...  
WO/1993/005561A1
An electric tool, especially a hand-held tool (1) comprises a housing consisting especially of half-shells (49), and an electric motor (2) in the form of a reversible collector motor with a motor shaft (5) bearing a rotor (3). A bearing ...  
WO/1993/001644A1
A flat coreless DC motor having a large output torque and high efficiency at high speeds. The three-phase flat coreless DC motor comprises flat armature coils, and a disc-like rotary armature, or a fixed armature. The flat armature coils...  
WO1992020131A3  

Matches 601 - 650 out of 13,864