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| Number | Title | Issue Date |
| 8049392 | Pin-style collector brush holder with rotating spring plate, radial contact, and brush-wear indicator An apparatus for holding a brush in contact with a moving conductive surface, the apparatus includes: a rotatable member disposed adjacent to the brush; and a spring coupled to the brush and to the member and configured to bias the brush towards the moving conductiv... | 11/01/2011 |
| 7355314 | Device for reversing rotational direction of a motor An electrical hand-held power tool (2) includes an electric motor (4) with a stator (12), and a device (26) for reversing the rotational direction of the motor (4) and which has a contact carrier (28) fixedly securable on th... | 04/08/2008 |
| 7265475 | Electric motor having convex high-speed brush A two speed direct current electric motor comprising: an armature having a commutator assembly that is adapted to receive an electromotive force to cause the armature to operatively rotate. A brush assembly having a common brush and a low-speed brush is disposed abo... | 09/04/2007 |
| 7265474 | Spiral and leaf spring arrangement for holding and applying power to a carbon brush The invention relates to an arrangement for holding and/or guiding and applying power to a carbon brush (16, 18) in the direction of a current-transferring commutator (14) comprising a first spring element (20), which acts upon the side of the c... | 09/04/2007 |
| 7224093 | Polyphase electric rotary machine The electric machine includes a front end plate (13), a rear end plate (14), a rotor (4) installed between the said end plates, and a magnetic target (50) with axial or radial reading fixed onto a target holder installed between the rotor... | 05/29/2007 |
| 7218027 | High-power direct current engine comprising a collector and carbon brushes for a racing car serving as prototype A DC motor includes a rotor which is mounted in a housing so that it can rotate about an axis. The rotor includes at least one winding to which direct current is applied from the outside in alternating directions via a commutator, which is arranged on the rotor. Bru... | 05/15/2007 |
| 7161272 | Welding wire feeder and motor therefor A wire feeder for an electric arc welder comprising a set of feed rolls driven by a DC motor with a commutator, first and second opposite polarity leads receiving power to drive the motor, and having a first brush at a given position on the commutator and connected ... | 01/09/2007 |
| 7060746 | Particulate carbonates and their preparation and use in breathable film The present invention is a method of producing a breathable film including producing an inorganic filler by treating particles of an inorganic particulate material comprising an alkaline earth metal carbonate compound by reaction with a hydrophobizing surface treatm... | 06/13/2006 |
| 7005774 | Rotary current-collecting device and rotating anode X-ray tube A rotary current-collecting device includes a rotary slip ring and brushes coming into sliding contact with the outer peripheral surface of the slip ring. The brush-holding ring has an inner surface to which three brush-holding springs are fixed by screws. Each of t... | 02/28/2006 |
| 6995487 | Endplay adjustment and bearing decoupling in an electric motor An electric motor (10) has an armature structure (12) including a shaft (14), a lamination stack (11) coupled with the shaft, a commutator (16) coupled with the shaft, and windings (13) carried by the lamination stack and co... | 02/07/2006 |
| 6933632 | Commutating rotary switch A turning-pivoting commutating rotary switch (1) with brush guides (2) for reversing the direction of rotation of a universal motor, which has two stator contacts (3a, 3b) each making contact with a contact rail (5... | 08/23/2005 |
| 6924577 | Brush box assembly A brush box assembly for use in an electric motor and an electric motor having a brush biasing mechanism that also retains the brushes to allow installation of a sliding electrical contact assembly is described. The brush box assembly has a plurality of brush holder... | 08/02/2005 |
| 6864615 | Electric machine with brush-holder assembly and method for assembling an electric machine provided with such an assembly The electric machine includes a collector (60), a brush-holder assembly comprising an end cap (26) and a set of members (28, 30, 32, 34) for electrical connection equipped with guide cages (36, 38, 40, 42) suitable for accommodating a res... | 03/08/2005 |
| 6849986 | End cap assembly An end cap 16 for a miniature electric pmdc motor has two fixed brush cages 36, 38 moulded integrally with the end cap and two separate brush cages 40, 42 which are attached to the end cap 16 during the assembly process. The angular separ... | 02/01/2005 |
| 6838802 | Brush holder for dynamoelectric machines A brush holder (100) for carrying a brush (102) and for providing adjustment of the brush relative to the commutator (104) of a dynamoelectric machine (105). The brush holder provides for adjustment of the gap (110) between the com... | 01/04/2005 |
| 6836050 | Terminal structures for motor with brush to connect motor to external circuit A motor with brush includes a rotor having a rotary shaft and a commutator retained at the rotary shaft, two brush sections each having a plane surface in an axial direction of the rotor and in sliding contact with the commutator, and two brush terminals that are in... | 12/28/2004 |
| 6831381 | Electric drive, especially for motor vehicles In an electrical drive mechanism, in particular for motor vehicles, having a commutator motor (14) disposed in a housing (10), which commutator motor (14) has a rotor shaft (17) with a commutator (22) non-rotatably supported on it ... | 12/14/2004 |
| 6661148 | Motor-driven tool In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery of the commutator 11 is provided with a... | 12/09/2003 |
| 6559571 | Programmable brush for DC motors The invention concerns a brush system for a commutated DC motor. As the brush wears, different cross-sectional shapes, at different positions, come into contact with the commutator. The center of contact for each cross-sectional shape can be different, th... | 05/06/2003 |
| 6479918 | Drilling implement The hand-held drilling and/or screwing implement has a housing with a handle, an electrical driving motor, a carbon brush holder ring and a switching body, which interacts rotationally locked with the carbon brush holder ring. At the carbon brush holder r... | 11/12/2002 |
| 6356003 | Direct current motor A motor includes a shaft, at least one bearing, a rotor, a stator, and a brush carrier. The bearing is located adjacent to the shaft. The rotor is interconnected to the shaft and magnetically interacts with the stator. The brush carrier is releasably inte... | 03/12/2002 |
| 6246146 | Axial field electric direct current motor and generator An electrical direct current machine (10), which can be operated as a motor and as a generator and works according to the axial field principle. The machine has a rotor (26), which is rotatably mounted in a housing (12), has a plurality of electromagnets ... | 06/12/2001 |
| 6232695 | Programmable brush for DC motors The invention concerns a brush system for a commutated DC motor. As the brush wears, different cross-sectional shapes, at different positions, come into contact with the commutator. The center of contact for each cross-sectional shape can be different, th... | 05/15/2001 |
| 6031313 | Brush holder device In a brush holder device, in which an action-side end portion 22a of a torsion spring 22 is engaged with a torsion spring engaging groove 25 recessedly provided in an end surface of the brush 24 on the side opposite to a commutator 23, so that the elastic... | 02/29/2000 |
| 5821663 | Power supply configuration for an electric motor with four brushes Power supply is accomplished via two rails, which are arranged in one plane and which in each case have lugs, which can be bent out from the rail plane. In this case, contact arm of at least one lug is run away over a rail. In this way, a system which is ... | 10/13/1998 |
| 5811904 | Permanent magnet dynamo electric machine In order to realize a permanent magnet dynamo electric machine which permits a high speed of rotation, the permanent magnet dynamo electric machine includes a stator 20 having a stator iron core 22 in which a stator winding 24 is wound, and a rotor 30 fac... | 09/22/1998 |
| 5691585 | Terminal connection for an electric motor with a speed reducer A terminal connector in an electric motor permits easy and smooth connection between a brush terminal and a power terminal by installing a case cover to a case frame. A support plate fixed to the case cover is divided into a terminal portion provided with... | 11/25/1997 |
| 5539264 | Brush holder assembly A brush device having a brush holding frame 320 made of an insulating material provided with a plurality of brush accommodating portions 320a, b which are open at their ends in the axial direction and at their inner peripheries in the radial direction, an... | 07/23/1996 |
| 4857789 | Rotary-type electromagnetic actuator for toys A rotary-type electromagnetic actuator for a toy includes a cylindrical magnetic stator fixedly mounted within a housing, a rotor arranged concentrically within the stator and rotatably supported by a shaft within the housing, a coil wound on the rotor fo... | 08/15/1989 |
| 4785214 | Brush rigging for dynamoelectric machines Brush rigging for a dynamoelectric machine such as an electric cranking motor for cranking an internal combustion engine. A support carries a plurality of radially extending brush holders each of which slidably supports a brush. The brushes are urged radi... | 11/15/1988 |
| 4774430 | Brush assembly for electrical motors The brush assembly for electrical motors comprises a housing cap (10) which consists of an insulating material and which closes the motor on its frontal end, the said cap's inner side (16) being provided with projections (7, 8) extending in parallel to th... | 09/27/1988 |
| 4746829 | Brush gear assembly An improved brush gear assembly for use in a miniature motor. The brush gear assembly is mounted within the interior of the end cap of the motor and basically consists of three parts: a terminal element or fitting, a brush leaf element, and a brush. The t... | 05/24/1988 |
| 4638204 | Hammer brush holder assembly for a commutator motor A hammer brush holder assembly can be easily fabricated and assembled by robot automation using only a few simple steps. The brush holder has at least two brush support arms swivel-mounted at one end in a brush rocker and pressed against a commutator by a... | 01/20/1987 |
| 4602181 | Brush holder assembly for use in electric machines A brush holder assembly for use in an electric motor or generator has an insulating ring one side of which carries a set of several equidistant carriers for brushes which are biased in the radial direction of the ring to bear against a slip ring or agains... | 07/22/1986 |
| 4536669 | Direct current motor A d.c. motor comprises a cylindrical yoke, at least one set of field magnets of permanent magnets fixed to the inner peripheral surface of the yoke, an armature wound with armature windings so as to be surrounded by the field magnets, a commutator firmly ... | 08/20/1985 |
| 4475053 | Brush-holder for electrical machines The essentially semi-circular busbar connecting oppositely located positive brushes is shiftably held in seating means provided in the positive brush-holders and in the intermediate negative brush-holder and has an offset extension which can be firmly scr... | 10/02/1984 |
| 4404488 | Brush board assembly for dynamoelectric machine A brush board assembly for a dynamoelectric machine is provided with flexible electrically conductive brush carrying flat springs which are pinned to a ring-like mounting board in a manner effective to electrically connect the spring to printed circuitry ... | 09/13/1983 |
| 4401908 | Brush-holder assemblies for electric motors, particularly for traction motors A motor with a commutator, for example a traction motor, comprising brush-holders mounted on a ring adapted to rotate to bring them one by one opposite an inspection gate. The connection between these brush-holders and the fixed circuits is ensured by a s... | 08/30/1983 |
| 4399384 | Sealed-type D.C. electric motor having reduced diametrical bulk A rotor for a D.C. electric motor is disclosed, in which the rotor has a frontally arranged collector on which brushes are active, which are oriented parallel to the rotor axis. This arrangement considerably reduces the diametrical bulk of the motor. The ... | 08/16/1983 |
| 4381468 | Commutator motor brush mounting arrangement A commutator motor brush mounting arrangement is arranged in an axial opening of an electric motor housing. The arrangement is provided with mounting bars which protrude axially from a support plate, the mounting bars being arranged at the interior of the... | 04/26/1983 |
