Class / Patent application number | Description | Number of patent applications / Date published |
310081000 | Unbalanced weight (e.g., vibrators) | 44 |
20080218013 | Vibration exciter - A vibration exciter, particularly for a vibration pile driver, comprising at least two axles disposed parallel to one another, as well as at least two imbalance masses, which are attached to one or more of the axles. The relative rotary position of the imbalance masses can be adjusted relative to one another by at least one rotary oscillating motor having a rotor shaft and a stator housing. The rotor shaft is an integral part of one of the axles, and the rotary position of the stator housing relative to the rotor shaft can be changed. The stator housing can be locked to the rotor shaft. An oscillating motor suitable for use in a vibration exciter, comprises a rotor shaft and a stator housing, between which working chambers are formed. The stator housing can rotate about the rotor shaft and can be locked relative to the rotor shaft. | 09-11-2008 |
20080246356 | Slim Type Vibration Motor - A slim type vibration motor is provided. The slim type vibration motor includes a case, a shaft, a rotor, a printed circuit board, and a plurality of coils. The shaft has at least one end thereof fixed to a central portion of the case. The rotor rotates about the shaft within the case, and includes a rotor yoke, a magnet fixed to the rotor yoke, and a weight imparting eccentricity to the rotor. The printed circuit board is installed to a bottom surface of the case, and forms a coil hole in a region thereof facing the magnet. The plurality of coils passes through the coil hole and is installed on the bottom surface of the case. | 10-09-2008 |
20080278012 | VIBRATION-GENERATING STEPPING MOTOR - The present invention provides a vibration-generating stepping motor including: two stator yokes; a bearing that magnetically couples the two stator yokes; a rotor frame that rotates on a circumference of the stator yokes; and an eccentric weight that shifts a gravity center of the rotor frame from a rotation center of the rotor frame. | 11-13-2008 |
20080278013 | Vibration motor holding structure and vibration motor - There is provided a holding structure to hold a vibration motor on a circuit board with a sufficient holding strength using an inexpensive and simple means such as caulking and bonding and a vibration motor held on a circuit board using the holding structure. The holding structure having a holder clamps a vibration motor body having an eccentric weight at an end of the rotation shaft around the outer periphery from the outside and supports the vibration motor at the lower part. | 11-13-2008 |
20080309180 | Surface Mount Type Vibration Motor and Fixation Structure - In a solder reflow process, a vibration motor is stably mounted on a circuit board by changing the design of a partial shape of a soldered motor holder without changing the design of a vibration motor body and securing a sufficient soldering area to completely perform solder bonding to prevent a soldered portion of a motor holder from peeling off the circuit board. | 12-18-2008 |
20090039721 | BOARD MOUNTED STRUCTURE OF VIBRATION MOTOR - A board mounted structure of a vibration motor which self aligns along with melting of cream solder even if deviation occurs in positioning of the flat bottom surface of a metal holder frame and a fastening pattern at the time of automatic mounting, that is, a board mounted structure having a vibration motor having a metal holder frame into which a motor case is fit and a pair of external terminal pieces attached to a plastic end cap and a printed circuit board having a fastening pattern shaped left-right symmetric about a center line and superposed with a bottom surface of the metal holder frame and power feed patterns adjoining this fastening pattern, arranged left-right symmetrical with respect to a center line, and superposed with corresponding external terminal pieces, the metal holder frame having front projecting pieces and a back projecting piece at its flat bottom surface, the fastening pattern having front extending pattern surfaces superposed with corresponding front projecting pieces and a back extending pattern surface superposed with the back projecting piece at its main fastening pattern surface. | 02-12-2009 |
20090079282 | VIBRATION MOTOR - A vibration motor having a vibration motor main body | 03-26-2009 |
20090146514 | Vibration generator for a vibration pile driver - A vibration generator has rotatable imbalance masses disposed on at least two shafts, in which means for adjusting the rotational position of the imbalance masses relative to one another are disposed. There is at least one sensor for determining the angular acceleration of the rotating imbalance masses. The sensors may also determine acceleration of the vibration generator. There is a module for determining the angular acceleration of the rotating imbalance masses on the basis of the measurement values determined by the sensors. A vibration pile driver for introducing elements to be pile-driven into the ground, and drawing them from the ground, as well as for compacting ground material, contains one of the aforementioned vibration generators. | 06-11-2009 |
20090189467 | Vibration generator for a vibration pile driver - A vibration generator for a vibration pile driver, comprises imbalance masses that can rotate, which are disposed on shafts. A hydraulic drive having a changeable suction volume is disposed on the generator. A vibration pile driver consists of the vibration generator and a mast for movably supporting the vibration generator and/or an accommodation for a pile-driven material. | 07-30-2009 |
20090200880 | WIDE BAND VIBRATIONAL STIMULUS DEVICE - An eccentric mass (EM) motor in a vibrotactile transducer provides a wide band vibrational stimulus to a mechanical load in response to an electrical input. The eccentric mass and motor may form part of the transducer actuator moving mass, which is in contact with a load, i.e, the skin of a user. The moving mass and the actuator housing may be in simultaneous contact with the load. The moving mass may be guided by a spring between the actuator housing and the moving mass. The load, moving mass, spring compliance, and housing mass make up a moving mass resonant system. The spring compliance and system component masses may be configured to maximize the actuator displacement and/or tailor the transducer response to a desired level. This configuration may be implemented as a low-mass wearable wide-band vibrotactile transducer. | 08-13-2009 |
20090218896 | Surface mount-type vibration motor and fixation structure for surface mount-type vibration motor - [Problems] A surface mount-type vibration motor and an installation structure for a surface mount-type vibration motor, where soldered portions are prevented from separating from a circuit board without requiring any design change in a vibration motor body. | 09-03-2009 |
20090230796 | FLAT TYPE VIBRATION MOTOR WITH INCREASED VIBRATION AMOUNT - A flat type vibration motor with increased vibration amount comprises a vibrator ( | 09-17-2009 |
20090230797 | VIBRATION MOTOR - Disclosed is a vibration motor. The vibration motor includes a bracket including a support tube protruding from the bracket, a case coupled with the bracket, a support shaft supported by the bracket and the case, a bearing rotatably fitted around the support shaft, a rotor fixed to the bearing to rotate together with the bearing, thereby generating vibration, a stator mounted on the bracket to rotate the rotor through interaction with the rotor, a support member installed around the support tube, and a first washer interposed between the support tube and the bearing and supported by the support member. | 09-17-2009 |
20090243410 | Vibration generator - A vibration generator has at least two groups of shafts, on which at least two groups of imbalances are disposed, and which are connected with at least one drive that rotates the shafts relative to one another, at different speeds of rotation, thereby achieving a directed advance. The operating direction of the vibration generator can be adjusted. | 10-01-2009 |
20090251017 | Vibration motor - A vibration motor includes a rotary shaft, an armature core secured to the rotary shaft and having a plurality of salient poles, an armature coil wound around each of the salient poles except at least one salient pole, a frame serving as an outside cover, a plurality of magnets secured to the frame and having respective different polarities, and a weight adapted to rotate together with the rotary shaft and disposed eccentrically, wherein the weight is disposed inside the frame and secured to the armature core in such a manner that at least a part of the weight is inserted in a hollow provided in at least the one salient pole having no armature coil. | 10-08-2009 |
20090267434 | VIBRATION MOTOR - Provided is a vibration motor. The vibration motor includes a housing, a support shaft, a rotor. First and second stators, and a power supply. The housing includes a bracket and a case coupled to the bracket. The support shaft is supported and fixed to the housing. The rotor is rotatably disposed on the support shaft. The first stator is disposed in the bracket, and the second stator is disposed in the case. The power supply supplies a power to the rotor to rotate the rotor. | 10-29-2009 |
20090309436 | FLAT VIBRATION MOTOR - A flat vibration motor including a stator having a spindle for mounting a flexible substrate, and a rotor having an eccentric weight and rotatably supported by the spindle, the flexible substrate having a lower surface substrate overlapped on the lower surface of the stator and centered around the spindle, an upper surface substrate overlapped on the upper surface of the stator plate, and a narrow-width connecting part for connecting the lower surface substrate and the upper surface substrate by bending the lower surface substrate and the upper surface substrate in an integrated fashion at a notch in the circumference of the stator plate, and the upper surface substrate having a through hole for fastening and connecting an upper surface wiring pattern with the stator plate by filing solder bump, whereby reflow soldering in automatic mounting of a printed circuit of instrument side can be performed. | 12-17-2009 |
20100007229 | Vibration Motor - A vibration motor is provided. The vibration motor includes a case, a shaft, a rotor, a printed circuit board (PCB), and a coil. The case includes a lower case and an upper case. The case includes an insulating coating layer on the lower case thereof. The shaft is supported by the upper case and lower case. The rotor is rotatably coupled to the shaft to generate a vibration. The PCB is fixed to the lower case. The coil passes through the PCB and fixed to the lower case. the coil interacts with the rotor. | 01-14-2010 |
20100033045 | VIBRATING MOTOR - A vibrating motor includes a base having a bearing mounting section, a magnet mounted on the base, a shaft assembled with the bearing mounting section, a pair of brushes located on the base and a rotor rotably supported by the shaft. Each of the brushes has a first contacting portion and a second contacting portion. The rotor includes a commutator facing the brushes. The commutator defines a plurality of segments. A gap is defined between two adjacent segments and extends along radial direction of the commutator. A connecting line connecting the first and second contacting portions is not through the shaft. | 02-11-2010 |
20100117471 | MICRO VIBRATION MOTOR WITH ADJUSTABLE VIBRATION AMOUNT - A micro vibration motor with adjustable vibration amount includes a rotor and a stator. The rotor includes a round cover; a perforation, formed on a rotation center of the round cover; a weight portion, integrally formed on an edge of the round cover, for changing a mass center of the round cover, in which the weight portion has at least one slot formed thereon; and at least one movable part, selectively disposed in each slot, for changing a weight of the weight portion, so as to adjust a vibration amount generated during the rotation of the round cover according to design demands. | 05-13-2010 |
20100148604 | Vibration Motor - A vibration motor is provided, comprising a case having an upper case and a lower case which are coupled to each other; a shaft installed in the case while being supported by the case; a rotor rotatably coupled with the shaft; a stator arranged around the shaft; a first substrate installed on an upper surface of the lower case; and a second substrate coupled to a lower surface of the lower case and electrically connected to the first substrate. The lower case has a first opening and the first substrate is electrically connected to the second substrate through the first opening. | 06-17-2010 |
20100156209 | Vibration Motor - Provided is a vibration motor including a supporting shaft, a rotor rotatably coupled to the supporting shaft, a stator facing the rotor, and a case having a lower plate where the supporting shaft and the stator are coupled, an upper plate facing the lower plate and the rotor, and having at least a portion having a first thickness and a portion having a second thickness greater than the first thickness at a position adjacent to the supporting shaft, and a side plate extending from the upper plate to couple to the lower plate. | 06-24-2010 |
20100253166 | Rotor and Vibration Motor - Disclosed are a rotor and a vibration motor. The rotor includes a rotor substrate, a coil electrically connected to the in rotor substrate, a coil cover for supporting the coil and a weight coupled to the coil cover. | 10-07-2010 |
20100264766 | Rotor and Vibration Motor - A rotor is provided. The rotor includes a bearing yoke, a supporting member, a rotor substrate, a coil, and a weight coupled to the supporting member. The supporting member is coupled to the bearing yoke. The rotor substrate is supported by the supporting member. The coil is supported by the supporting member and electrically connected to the rotor substrate. The weight is coupled to the supporting member. | 10-21-2010 |
20100289357 | BRUSHLESS VIBRATION MOTOR - The present invention provides a brushless vibration motor. A bracket has a burring part protruding upwards. A shaft is fitted at a first end thereof into the burring part. A stator comprises at least one coil which is provided on the upper surface of the bracket. The bearing is rotatably fitted over the circumferential outer surface of the shaft. The rotor has a rotor yoke fitted over the circumferential outer surface of the bearing, a magnet coupled to the rotor yoke, and a weight causing eccentric rotation. The stopper is provided on a second end of the shaft and is spaced apart from the upper end of the bearing to by a predetermined distance. The brushless vibration motor of the present invention has no a separate casing, thus enhancing spatial utilization. | 11-18-2010 |
20110025149 | FLAT TYPE VIBRATION MOTOR - Disclosed herein is a flat type vibration motor. The motor includes a bracket having a shaft mounted to the central portion of the bracket, with a lower substrate and a magnet being adhered to the upper surface of the bracket. A casing covers the upper portion of the bracket, and defines an internal space. An upper substrate has on a lower surface thereof a commutator. A coil and a weight are adhered to the upper surface of the upper substrate. A resin member is provided on some portion of the upper substrate and has a bearing holding hole. A bearing is held in the bearing holding hole and rotatably supported by the shaft. A brush is secured at a first end thereof to the lower substrate and contacts at a second end thereof to the commutator to form a contact part. | 02-03-2011 |
20110043061 | VIBRATION MOTOR - A weight used in a vibration motor includes first and second weight parts that extend along adjacent wing parts to hold the wing parts therebetween; an insertion part that is formed between the first and second weight parts and into which the adjacent wing parts are inserted in the radial direction of the core; and a third weight part that is inserted between the adjacent wing parts (that is, slot) and connects the first weight part and the second weight part in a direction of the rotation axis line such that the insertion part is decoupled. | 02-24-2011 |
20110109181 | MOTOR - In the invention, in order for a brush assembly to be easily built in a motor, the motor includes an aligning means for aligning a main body portion of the brush assembly relative to a lower case engaging the main body portion with the lower case and a guide means for guiding the brush assembly in a direction which is at right angles to a rotational axis L after the main body portion has been aligned relative to the lower case. | 05-12-2011 |
20110133583 | VIBRATING SCREEN AND MOTOR, MOTOR GROUP - A vibrating screen. The vibrating screen includes a vibrator, a screen box and a base. The vibrator includes at least a motor and an eccentric block coupled thereto. Each motor has a main motor shaft ( | 06-09-2011 |
20110241464 | Vibration Motor Surface Mounting Structure and Vibration Motor - In order to provide a vibration motor surface mounting structure capable of preventing a vibration motor from tipping over without using a part such as metal holder requiring complicated assembly, for a vibration motor having an eccentric weight mounted on the rotating shaft of the motor and mounted on a surface of a printed circuit board, a support member having extensions extending to the side of the rotating shaft on which the eccentric weight is mounted is used, a portion of this is fixed to the motor or the frame thereof, and a bottom surface including the extensions of the support member is secured to the mounting surface of the printed circuit board by soldering. | 10-06-2011 |
20110266901 | FLAT TYPE VIBRATION MOTOR - A flat type vibration motor realizing strong fastening of a rotor frame and an eccentric weight without welding, that is, a flat type vibration motor provided with a cover case having a tubular part with an opening closed by a stator structure and supporting one end of a shaft and with a rotor frame supported to be able to rotate via a slide bearing through which the shaft runs and having an axial direction field-type rotary magnet and an eccentric weight, wherein the rotor frame has a disk part having a burring part into which a slide bearing is fitted and at least one rivet hole, while the eccentric weight has a covering part superposed over the disk part at the side opposite to the stator structure, at least one rivet which is inserted from the covering part through the rivet hole and have heads which are crushed at the stator structure side of the disk part, and an eave-shaped taper part hanging down from the covering part over the outer circumferential edge of the disk part to the stator structure side. | 11-03-2011 |
20110285228 | VIBRATION MOTOR HOLDING STRUCTURE AND VIBRATION MOTOR - There is provided a holding structure to hold a vibration motor on a circuit board with a sufficient holding strength using an inexpensive and simple means such as caulking and bonding and a vibration motor held on a circuit board using the holding structure. The holding structure having a holder clamps a vibration motor body having an eccentric weight at an end of the rotation shaft around the outer periphery from the outside and supports the vibration motor at the lower part. | 11-24-2011 |
20120062059 | Angular momentum engine - This invention Angular Momentum Engine turns angular centripetal momentum to linear centripetal momentum. | 03-15-2012 |
20130076178 | VIBRATION GENERATOR MOVING VIBRATOR BY MAGNETIC FIELD GENERATED BY COIL AND HOLDER USED IN VIBRATION-GENERATOR - A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin. | 03-28-2013 |
20130241331 | Eccentrically Rotating Apparatus - An eccentrically rotating apparatus has a rotating table | 09-19-2013 |
20130320790 | VIBRATION GENERATOR - A vibration generator includes a rotary unit configured to rotate, a weight arranged to generate a vibration in the rotary unit and an electromagnet arranged to displace the weight to a position where a vibration is generated in the rotary unit. The electromagnet is configured to generate an eccentric load in the rotary unit by displacing the weight with an electromagnetic force generated when an input signal is sent to the electromagnet. | 12-05-2013 |
20140001899 | MOTOR STRUCTURE AND FLAT TYPE VIBRATION MOTOR STRUCTURE USING THE SAME | 01-02-2014 |
20140265677 | Overmold Protection for Vibration Motor - A vibration motor assembly includes a vibration motor, an end cap having electrical contacts configured for supplying electrical power to the vibration motor, the end cap having a first connecting structure connecting the end cap to the vibration motor, and a capsule connected to the end cap to define a cavity. The vibration motor further has a shaft, and an eccentric mass is connected to the shaft. The vibration motor is configured to use electrical power to rotate the shaft and the eccentric mass to create a vibration effect. The end cap further has a second connecting structure connecting the capsule to the end cap. The vibration motor and eccentric mass are enclosed by the so-connected end cap and capsule, so as to enable the vibration motor assembly to withstand fabrication conditions. | 09-18-2014 |
20140285044 | Closed System Self Propulsion Engine - With this patent design, I am challenging one of the foundations of modern engineering and physics, specifically a clause in the Conservation of Linear Momentum, which basically states that no object can gain linear momentum unless it pushes off of another object. This clause stems from Newton's Third Law of Motion, and is self evident for a point mass. However, I believe it to be impossible to account for all the infinite possible variations of propulsion machines that happen to have some dimension and real world properties. I think the people that drafted it, simply treated the change of momentum as a summation of forces on a point mass, and avoided the complexities that come with dimension and real bodies. This patent design will be a counter example for the aforementioned clause. It will open up the world up to new possibilities. | 09-25-2014 |
20150022040 | VIBRATION IMPARTING DEVICE FOR A CONCRETE FINISHING TOOL - A vibration imparting device for a concrete finishing tool utilizing a housing having a chamber surrounded by an inner surface of the housing. A vibrator and a battery are placed within the chamber. The vibrator includes a resilient collar to separate the vibrator from the housing inner surface. First and second adaptors are employed for the housing to be placed between the handle and the terminus of a concrete finishing tool. | 01-22-2015 |
20150357880 | Vibrator Mechanism Usable with a Concrete Finishing Tool - A vibration imparting device for a concrete finishing tool uses a housing having a chamber surrounded by an inner surface of the housing. A vibrator with a support, a rotor with a shaft and weighted body, a motor, and a resilient link between the shaft and the motor is positioned within the housing chamber. The vibrator also includes a resilient band to separate the vibrator from the housing inner surface. First and second adaptors are employed for the housing to be placed between the handle and the terminus of a concrete finishing tool. | 12-10-2015 |
20160056685 | VIBRATION GENERATING APPARATUS - In a vibration generating machine having two rotary shafts provided with eccentric spindles disposed parallel to each other, motors Ma, Mb are disposed so as to reduce the capacity or power consumption of the motors required in a vibration generating machine having two rotary shafts provided with eccentric spindles disposed parallel to each other, and to drive the two rotary shafts | 02-25-2016 |
20160079827 | VIBRATION GENERATING DEVICE - There is provided a vibration generating device including: a driving magnet of a rotor part rotated around a shaft and a coil part disposed to face the driving magnet and electromagnetically interacting with the driving magnet to rotate the rotor part, wherein the number of poles of the driving magnet and the number of coils of the coil part are the same as each other. | 03-17-2016 |
20160141935 | VIBRATION MOTOR - A vibration motor, comprising a base part which expands perpendicular to a vertical center axis; a shaft which protrudes upward along the center axis, a lower end of the shaft being coupled to the base part; a circuit board disposed on the base part; coil parts which are attached onto the circuit board, and face each other in a radial direction across the shaft and a gap; a bearing part which is rotatably attached to the shaft at an upper side than the coil parts; a rotor holder which is attached to the bearing part; a magnet part which is attached to the rotor holder; an eccentric weight which is attached to the rotor holder; a spacer which is attached to the shaft at a portion between the bearing part and the coil part, a top surface of the spacer being in contact with a bottom surface of the bearing part; and a cover part which covers at least a portion of the upper and lateral sides of the rotor holder and the eccentric weight, and is fixed to an upper end portion of the shaft and an edge portion of the base part, wherein a bottom surface of the spacer vertically faces a top surface of the coil part. | 05-19-2016 |