Abstract: An orthodontic remodeling system includes an extraoral vibratory source coupled to a bite plate, where the extraoral vibratory source is operable to vibrate the bite plate at a frequency in a range of 0.1 to 400 Hz. The bite plate is configured to deliver cyclic forces simultaneously to teeth of the maxillary and mandibular arches, and the bite plate and the extraoral vibratory source are held during use only by clamping with the teeth. A battery is operable to power the extraoral vibratory source, and a processor is configured to control the extraoral vibratory source. Electronic media is operable to capture data indicating usage duration and usage frequency to allow patient compliance to be determined.

Abstract: This massage head includes a housing, having two active members emerging from the lower surface thereof, having its free lower edge, opposite to the housing, intended to be in contact with a patient's skin. One at least of said active members is formed of a flap hinged within the housing and capable of being pivoted to bring the lower edges of said active members closer to each other or draw them away from each other, the relative displacement of said at least one flap being ensured by means of a rotary cam formed within the housing, the rotation axis of the cam being oriented substantially parallel to the displacement direction of said at least one flap. The cam includes at least one cam track formed on its periphery, intended to cooperate with the flap support(s), having one or their ends hinged in the housing.

Abstract: The scalp massager comprises a motorized hub that is mechanically linked to a plurality of radial arms. A massage ball at the end of each radial arms pressed against the scalp and the oscillatory motion of the radial arms causes the massage balls to move in a complex pattern. The arms comprise bent rods made from a resilient material that provides the springiness necessary to press the massage balls against the scalp. The oscillatory motion is provided by a battery-driven electrical motor located within the hub. A dial on the hub allows the user to turn the motor on or off and to control the speed of the motor.

Abstract: An orthodontic remodeling system includes an extraoral vibratory source coupled to a bite plate, where the extraoral vibratory source is operable to vibrate the bite plate at a frequency in a range of 0.1 to 400 Hz. The bite plate is configured to deliver cyclic forces simultaneously to teeth of the maxillary and mandibular arches, and the bite plate and the extraoral vibratory source are held during use only by clamping with the teeth. A battery is operable to power the extraoral vibratory source, and a processor is configured to control the extraoral vibratory source. Electronic media is operable to capture data indicating usage duration and usage frequency to allow patient compliance to be determined.

Abstract: A vibrating glass massager includes a glass vibration head having a base end, a free end, and a wall defining a hollow interior compartment that is closed at the vibration head free end and open at the vibration head base end. A vibration motor assembly is disposed in the vibration head interior compartment. A resilient vibration-transmitting interface is disposed between the vibration motor assembly and the vibration head wall. A non-glass base includes a base housing. The base housing and the vibration head base end are joined in interlocking relationship at a head-base connection interface. A power source and a control circuit are disposed in the base housing. The control circuit is electrically connected to the power source and to the vibration motor assembly. The glass vibration head is operable to deliver vibrations received from the vibration motor assembly via the vibration transmitting interface.

Abstract: Provided is an apparatus for producing a motion to be felt by a user comprising; a) a motor for generating a motion; b) a first member mechanically coupled to the motor, the member configured to have a motion of up and down; and c) a second member mechanically coupled to the first member and attached to a fixed location on the apparatus, the second member configured to tilt as a result of the motion of the first member; wherein the user has an option of choosing to experience the up and down motion generated by the first member or the tilting motion generated by the second member. The first and the second member can be each configured to receive a different extension, each extension configured to penetrate a body of the user.

Abstract: A dental device includes a mouthpiece configured to sit against occlusal surfaces of a patient's teeth and a motor connected to the mouthpiece. The motor is configured to vibrate the mouthpiece at a frequency between 60 and 120 Hz and an acceleration between 0.03 G and 0.06 G such that the mouthpiece places an axial vibratory force on the occlusal surfaces.

Abstract: A machine that combines three sections bound to each other by the corresponding dynamic swivels that are driven from a remote control of adjustment and command (R).

Abstract: Provided are a skin-stimulation unit and a skin-massage apparatus having same. The skin-stimulation unit includes a striking member for applying an impact to the skin; a cap part into which the striking member is slidably inserted; and a connecting rod having a front end connected to the striking member and a rear end connected to an external source of motive power. The connecting rod linearly reciprocates the striking member.

Abstract: A sexual stimulation device includes an elongated dildo housing sized to be received within an orifice of a human body, the housing defining an internal cavity extending along a longitudinal axis of the housing, a mass laterally constrained within the cavity and movable linearly along the cavity, and an electrically driven actuator disposed within the housing and operably coupled to the mass. The actuator is operable to accelerate the mass along the cavity and to thereby induce a longitudinal reactive acceleration of the housing.

Abstract: A valve assembly comprises a housing and a plurality of valves disposed within the housing. The housing has a layered body which comprises a first layer and a second layer, which in combination define a fluid supply channel, a first plurality of fluid channels and a second plurality of fluid channels. Each valve of the plurality of valves may be in fluid communication with the fluid supply channel and respectively at least one fluid channel selected from the first plurality of fluid channels and the second plurality of fluid channels. The fluid supply channel partitions the layered body such that the first plurality of fluid channels is arranged on a first side relative to the fluid supply channel and that the second plurality of fluid channels is arranged on a second side opposite to the first side relative to the fluid supply channel.

Abstract: A system and method for rejuvenating skin through ablation using a handheld device (200) having a removable treatment component (213) with an abrasive material on one surface of the component which surface is on a portion of the treatment component (213) configured to conform to a skin surface. The system further includes application of other elements to facilitate skin recovery and rejuvenation processes.

Abstract: A massage device includes an outer housing, an inner housing, a drive motor, a gear assembly, a one-way bearing, a drive gear wheel, at least one massage member, and a linear motion device. The massage member can perform a massage through rotary motion and linear motion, and can massage by repeatedly moving forwards and backwards with respect to the user or at fixed positions. Furthermore, the gear wheels of the gear assembly are vertically disposed in the inner housing, while the drive motor is arranged in an oblique manner. Therefore, the inner housing doesn't need a large space to accommodate the gear assembly, and, consequently, the outer housing is also reduced in width.

Abstract: The present disclosure is concerned with an attachment for an epilator or an epilator having an axle arranged for driven movement around a centre axle axis, an end plate arranged at a first end of the axle for rotation together with the axle, the end plate having at least a first functional surface, a first clamping element having a functional surface, the first functional surface of the end plate being arranged face-to-face with the functional surface of the first clamping element, and the first clamping element being arranged for repeatedly being moved towards and away from the end plate such that repeatedly a closed position is obtained in which the two functional surfaces abut on each other, wherein the end plate is an outer part of the epilator or the attachment for an epilator.

Abstract: A massage device includes an outer housing, a first transmission mechanism, a second transmission mechanism, a massage seat and at least one massage unit. The first transmission mechanism drives the massage seat to reciprocate moving in the outer housing. The massage unit includes a sway arm having a hole at a center thereof to receive a sway wheel. One of side surfaces of the sway wheel is slanted. The second transmission mechanism drives the sway wheel to rotate and the slanted side surface of the sway wheel presses against the sway arm, thereby driving the sway arm to sway. Massage members are disposed on a top of the sway arm. Through reciprocating movement of the massage seat, swaying of the sway arm and spinning of the massage members, the massage device provides reciprocating pressing and kneading massages on a user's body.

Abstract: A vibrator unit of a massage device of the present invention has a housing 101 with an upper portion configured to accept a variety of cup head attachments having varying predetermined designs and a jelly cap so as to vary the feel of the vibrator unit. The motor and control circuitry are configured for creating oscillatory vibrations and to utilize the magnetic repulsive force to create random oscillating motion.

Abstract: Systems and methods for data connectivity of High Frequency Chest Wall Oscillation (HFCWO) devices are disclosed herein. Data is transferred from a High Frequency Chest Wall Oscillation (HFCWO) device to a server via a cellular connection. This data is then used for various purposes including providing information about High Frequency Chest Wall Oscillation (HFCWO) therapy, service related information for maintenance, therapy compliance monitoring, billing including insurance claims. Data is also used to update an Electronic Medical Records (EMR) system.

Abstract: A therapy system is operable to deliver at least one respiratory therapy to a patient. For example, therapy system may be operable to deliver any one or more of the following therapies: a high frequency chest wall oscillation (HFCWO) therapy, a positive expiratory pressure (PEP) therapy, a nebulizer therapy, an intermittent positive pressure breathing (IPPB) therapy, a cough assist therapy, a suction therapy, a bronchial dilator therapy, and the like. The therapy system is contained in a housing supported by a mobile stand.

Abstract: An objective is to perform a leg massage under appropriate temperature conditions. The lower leg massage apparatus 1 comprises: a pair of right and left insertion recesses 4,4 in a vertically-extending continuous form, into which are inserted feet F and calves C of a user; a first massage mechanism 5 disposed within an upper part of the insertion recess 4, for massaging the inserted calves C, and a second massage mechanism 7 disposed within a lower part of the insertion recess 4, for massaging the inserted feet F. Further provided are a cover body 12 of a two-layer structure which is disposed in the insertion recess 4 so as to cover the first massage mechanism 5 and the second massage mechanism 7, and a warm air/cool air supply section 15 for supplying a warm or cool current of air to a region between the two layers constituting the cover body 12.

Abstract: A massager has a base and a shaft mounted horizontally on the base. The shaft is rotated by a motor at a slow speed. The shaft has a plurality of spaced apart cams affixed to it. Elongate spring fingers are each affixed at one end to the base. Each finger has an intermediate portion that springably engages one of cams. A free end of the finger moves up and down as the cam rotates. The free end is provided with a projection that is suited to engage a body part. The projection is periodically pressed against the body as the cam rotates. The cams are mounted on the shaft so that they raise and lower the projections as different times. This action causes the projections to each press against the body at different times to emulate massaging fingers.

Abstract: A biomechanical stimulation device is presented. The biomechanical stimulation device comprises a base that supports an adjustable height arm and an easily removable drum connected to the arm. The drum is driven by a motor to provide an elliptical stimulation motion. An anti-rotation device prevents rotation, but allows orbital translation of drum. The drum may connect to the arm at a single attachment point. The arm 20 may be pivotally attached to the base and selectively movable to a desired position. A pair of struts may support the arm to assist in positioning the arm. The struts may be locked to prevent movement of the arm, or unlocked by a release button to allow selective positioning of the arm. The biomechanical stimulation device may further include a hand controller and other peripheral devices to provides a convenient interface for controlling the speed and run time of the biomechanical stimulation device.

Abstract: Apparatus and methods for therapeutically treating bone fractures, osteopenia, osteoporosis, or other tissue conditions, postural instability, or other conditions, such as cystic fibrosis, Crohn's disease and kidney and gall bladder stones. An oscillating platform apparatus supports a body to be treated. An oscillator is positioned within the platform apparatus and is configured to impart an oscillating force on the body. Two accelerometers are mounted to the platform apparatus for determining the acceleration and weight of the body. Once the weight of the body is determined, the amplitude of the frequency of the oscillating force and/or frequency of the oscillating force is adjusted to provide a desired therapeutic treatment to the patient. Information received from the two accelerometers is also used to determine the posture of the patient and the transmissibility of the mechanical vibration energy generated by the oscillating force through the body.

Abstract: An electromagnetic massage head which may be used as part of a human massager preferably includes a strong electromagnetic rotating head fixed together with an electromagnetic screw. The electromagnetic screw is configured to rotate in an axial direction. The operation of the strong electromagnetic head can achieve the effect of knead, massage, knock and shake etc. when used to provide massage treatment.

Abstract: The present invention relates to a massage device, and more particularly, to a leg and foot massage device capable of achieving foot swing. The device includes an electrical machinery deceleration element, a wobbler machine element and an air inflatable bag massage element. The electrical machinery deceleration element drives the air inflatable bag massage element through the wobbler machine element, and the electrical machinery realizes the one-off deceleration. Therefore mechanical transmission steps are simplified and transmission noise obviously dropped, wobbler machine element cooperates with air inflatable bags' inflation and deflation, generating many kinds of different massage motions and obtaining a comprehensive massage effect on leg and feet muscles and joints.

Abstract: The invention as presently conceived discloses a motion-activated, mechanical apparatus that can be mounted onto a wall to provide the automatic scratching of a house pet, specifically a cat. The new and novel apparatus is configured with four independent mechanisms resembling human fingers, less the thumb, in both appearance and in movement. The fingers would be covered with a latex material to closely approximate the feel of real fingers. The mechanical apparatus would be mounted on a wall structure at an appropriate height to best facilitate the petting and scratching of the owner's particular pet. In operation, the artificial finger-like appendages would have a drive mechanism, electrical motor and be powered by a battery. A motion sensor, such as a close range infrared detector or similar device, would activate the fingers as the pet came into close proximity.

Abstract: A massage device. The massage device includes a pair of therapeutic elements and a bottom therapeutic member. The therapeutic elements are rotated by a driving shaft, driven by a driving mechanism, for supporting and massaging feet. The bottom therapeutic member is disposed between two therapeutic elements, supporting the instep of a foot. The therapeutic elements are formed along the instep.

Abstract: Disclosed are devices capable of performing a massage and wash on a scalp or massage on an affected area gently and effectively by a brush section or a treating section thereof. A plurality of projections are integrally formed on a surface of a flexible body plate of brush section, so that the projections are symmetrical with respect to an axis line A and an axis line D of the projection is perpendicular with the surface of the body plate. An edge of the body plate is fixed on a frame. A motor serving as a drive section is activated allowing a reciprocating drive means to repeatedly deform the body plate coupled thereto between an upwardly-deflected curved concave position and a downwardly-deflected curved convex position along the axis line A, thereby allowing each distance among a plurality of the projections to open and close-repeatedly to provide an repetitive action of kneading and pushing/stretching the scalp. Accordingly, the scalp massage and the scalp and hair wash are achieved.

Abstract: A massage apparatus is disclosed with a housing and a motor oriented in the housing. An eccentric drive is driven by the motor for oscillating an elongate massage member. In one embodiment a pair of elongate massage members are provided. In another embodiment, a massage formation is limited to a range of linear translation in a first direction and limited to a range of rotational translation relative to the housing.

Abstract: A surface treatment device comprising a body, a motor disposed in the body, an applicator operably coupled to the motor, and a container coupled to the applicator via a fluid flow path, the container containing a surface treatment substance.

Abstract: A massage apparatus for use in the therapeutic application of repetitive vibratory force to a recipient. The massage apparatus 5 comprises a housing 10 having a hand portion 26 and a cuff portion 42. The apparatus 5 also comprises a pancake motor mounted 50 within the hand portion 26, the pancake motor 50 having a drive shaft 60 extending forward along the direction of a longitudinal axis 24 of the housing 10. An oscillating assembly 72 mounts within the cuff portion 42 and attaches to the drive shaft 60 of the pancake motor 50, wherein the oscillating assembly 72 translates rotary motion of the drive shaft 60 into orbital oscillations. A counterweight 108 operatively connects to the pancake motor 50 wherein the counterweight 108 decreases vibration in the hand portion 26 by compensating forces generated by the oscillating assembly 72.

Abstract: The invention relates to a device comprising two table-like supporting plates, which serve as operating and functional units. The supporting plates each have a longitudinal and transversal extension, are arranged parallel to one another in a frame that can be immobilized in a fixed manner, and are each mounted so that they can spatially move with three-dimensional degrees of freedom that are independent of one another. In addition, a motor-operated drive is provided that can set the supporting plates in oscillatory motion at least in a one-dimensional direction and independent of one another.

Abstract: A massage machine is provided, which can efficiently create a massage program to meet the user's preference by reflecting a change in massage parameter performed during an execution of the massage program on the next execution of the massage program. This massage machine comprises an input unit configured to input the change in massage parameter, first memory for temporarily storing the change in massage parameter input by the input unit in a desired massage stage during the execution of the massage program, second memory for storing the change in massage parameter provided from the first memory after the completion of the massage program, and a control unit configured to modify the desired massage stage according to the change in massage parameter stored in the second memory at the next execution of the massage program.

Abstract: An apparatus for massaging calves is able to adjust a distance between two plates, the apparatus having at least two plates that are arranged at a distance from one another and that come into contact with the calf during massage on both sides thereof, and having a drive shaft, the plates being connected to the drive shaft by coupling members in such a manner that a rotational movement of the drive shaft brings about a movement of the plates for carrying out the calf massage. A distance adjusting mechanism is also provided in order to adapt the distance between the two plates to the size of the calf to be massaged.

Abstract: A massaging device in the shape of a rod with an essentially cylindrical end element with a sleeve. The device has a flexible sleeve and a drive element to produce an oscillating deformation of the sleeve.

Abstract: A handheld device includes a casing, a motor housed within the casing and a massage member having a longitudinal pivot axis and a surface for bearing against a user's skin which is spaced radially from the pivot axis. The massage member is driven by the motor for pivotal oscillation about that axis.

Abstract: A massage assembly includes a motorized device having a drive arrangement configured to drive a massage head of the assembly. According to a preferred example, the massage head includes a plate provided with through openings and massage elements, each mounted in a through opening of the plate. The plate includes, around its perimeter, a relief for reversible mounting in the motorized device. The drive arrangement includes a rocker with a transmission surface against which the massage elements bear, with transmission surface oscillating about a pivot axis.

Abstract: An exercising apparatus includes a base, two supporting brackets, a driving assembly, a pedal assembly and a case. The supporting brackets are mounted on the base. The driving assembly includes a motor, an eccentric wheel and a lifting bracket. The motor has a motor shaft. The eccentric wheel is mounted eccentrically on the motor shaft. The lifting bracket has a wheel slot and two pivoting brackets. The wheel slot is defined through the lifting bracket and engages the eccentric wheel. The pivoting brackets are formed near two ends of the lifting bracket. The pedal assembly includes two pedals and two pedal pads. The pedals are mounted respectively and pivotally on the supporting brackets and the pivoting brackets of the lifting bracket. The pedal pads are mounted respectively on the pedals. The case is mounted on the base and has two openings corresponding to the pedal pads.

Abstract: A vibration training apparatus includes a base, a swinging link rod module and a driving mechanism. The swinging link rod module installed on the base has a driving mechanism for driving several swinging link rods for a link rod movement. An eccentric transmission shaft driven by a motor drives the swinging link rod module to produce a linear vibration during the swinging process, and matches with the rotation speed of the motor to drive a support stand to produce vertically up-and-down displacements with vibrations of different frequencies. An adjusting device can be installed between the swinging link rod module and the base for changing the swinging amplitude of the swinging link rod module, such that the driving mechanism can drive the swinging link rod module to linearly change the vibration amplitude and achieve a whole-body vibration effect to stimulate internal organs and improve muscle strengths and blood circulations.

Abstract: An assembly comprising of spiral sub-assemblies, each provided with plastic rollers and connected to an output shaft of a gearbox attached to a swinging beam, is mounted to a seat frame with two vertical wires. Two adjustable cables are connected to the swinging beam-ends, and press the spiral assembly rollers against the seat-back cover by bending the vertical wires. The rotation of the spiral assemblies moves the contact points of the rollers with the seat-back cover up and down, creating a massage effect throughout the seat-back cover.

Abstract: As one of exercising apparatuses, in particular an exercising apparatus giving exercising effect by contracting and relaxing user's muscles, an exercising apparatus which includes at least one motion unit including a moving unit installed at one end thereof with a hinge unit rotatably fixed; and an up-and-down reciprocating unit connected with the other end of the moving unit, the up-and-down reciprocating unit reciprocating upward and downward and making the moving unit rotate in an angular interval, and a driving unit connected with the up-and-down reciprocating unit of the motion unit, the driving unit driving the up-and-down reciprocating unit to reciprocate upward and downward is disclosed.

Abstract: An air-pressure massaging device having an automatic adjustment function comprises: a base, inside which being disposed a drive rod; two fixed massaging assemblies mounted onto the drive rod; two adjustable massaging assemblies moveably mounted onto the drive rod; an airbag disposed in the base serving to move the adjustable massaging assembly relative to the fixed massaging assembly. Through inflation and deflation of the airbag, the adjustable massaging assemblies will be caused to move relative to the fixed massaging assemblies, so that a distance between the fixed massaging assemblies and the adjustable massaging assemblies is adjusted.

Abstract: A massage device. The massage device includes a pair of therapeutic elements and a bottom therapeutic member. The therapeutic elements are rotated by a driving shaft, driven by a driving mechanism, for supporting and massaging feet. The bottom therapeutic member is disposed between two therapeutic elements, supporting the instep of a foot. The therapeutic elements are formed along the instep.

Abstract: A massaging device includes a housing, a motor, a cover, and an operation mechanism. The operation mechanism includes a rotation member secured on the rotation shaft of the motor to rotate therewith, and a massaging member pivotally mounted on the rotation member to move therewith. Thus, the massaging surface of the massaging member is rotated about the rotation shaft of the motor in an eccentric manner to move in the normal rotation direction and is rotated about the pivot shaft of the rotation member to move in the reverse rotation direction so as to provide a double massaging effect to the human body, thereby enhancing the massaging effect.

Abstract: A body vibrating device includes two rods rotatably straddled between two plates, two followers attached to the rods and coupled together with a link, two foot supports attached to the followers, a reduction gearing device disposed on the base and having an eccentric member coupled to either of the followers for allowing the followers and the rods and the foot supports to be rotated and driven by the reduction gearing device, and a motor coupled to the reduction gearing device for driving the reduction gearing device to vibrate the followers and the rods and the foot supports. The foot supports may be stably supported and driven or vibrated by the motor.

Abstract: A body vibrator includes a platform disposed above a base, two support devices each having a pivotal arm coupled to the platform for pivotally supporting the platform above the base, a motor-driven reduction gearing device disposed on the base and having an eccentric member coupled to the arm of the one of the support devices for allowing the platform to be rotated and driven by the reduction gearing device. The platform may stably support a user and may be suitably vibrated for massaging the whole user' body and for facilitating the blood and/or lymph circulation of the user and for decomposing the fatty tissue and thus for suitably reducing the fat from the user.

Abstract: The invention provides a leg massage machine comprising recessed receiving portions and leg receiving portions which are made movable together rockingly for massaging the feet and calves of the user, respectively. The leg massage machine has recessed receiving portions (70) for inserting the respective feet of the user and leg receiving portions (74) for inserting the respective calves of the user, the recessed receiving portions (70) and the leg receiving portions (74) each having massage means on side walls and/or a bottom wall thereof. The massage machine has a base assembly (20) to be placed on the floor, and a reclining movable assembly (50) rockingly movable forward and rearward relative to the base assembly (20). The recessed receiving portions (70) and the leg receiving portions (74) are provided in the reclining movable assembly (50) and movable together rockingly.

Abstract: Disclosed are devices capable of performing a massage and wash on a scalp or massage on an affected area gently and effectively by a brush section or a treating section thereof. A plurality of projections are integrally formed on a surface of a flexible body plate of brush section, so that the projections are symmetrical with respect to an axis line A and an axis line D of the projection is perpendicular with the surface of the body plate. An edge of the body plate is fixed on a frame. A motor serving as a drive section is activated allowing a reciprocating drive means to repeatedly deform the body plate coupled thereto between an upwardly-deflected curved concave position and a downwardly-deflected curved convex position along the axis line A, thereby allowing each distance among a plurality of the projections to open and close-repeatedly to provide an repetitive action of kneading and pushing/stretching the scalp. Accordingly, the scalp massage and the scalp and hair wash are achieved.

Abstract: A massaging apparatus is provided with a treating section having a length longer than a width for massaging a body of the user in a tapping movement. The treating section includes a first treating part and a second treating part which are arranged in the longitudinal direction of the treating section. The apparatus is further provided with a switcher which switches over the position of the second treating part relative to the first treating part in a tapping direction to selectively change from a first state where the first treating part and the second treating part are flush with each other to a second state where the second treating part protrudes relative to the first treating part, and vice versa.

Abstract: A lower leg massage device includes a rotatable shaft having two actuating pins, two actuating devices solidly secured on the shaft, and two rotatable actuating devices rotatably attached onto the shaft and each having two opposite seats for selectively engaging with the actuator pins of the shaft. Four massage members are attached onto and to be vibrated by the actuating devices. The actuator pins may selectively engage with the one of the seats to rotate the rotatable actuating devices in one direction, and may engage with the other seat to rotate the rotatable actuating devices in the other direction, and to allow the massage members to be arranged either opposite to or parallel to each other.

Abstract: An improved massaging device for obtaining a massaging effect similar to an actual finger massage. Multiple finger-like implements provide soft wide area skin contact, and generate a vibratory motion consisting of a pulling massage combined with a lateral side motion. The device comprises means of reciprocally moving rows of massaging implements in opposition while reciprocally moving each row in combined normal and parallel unison. In one embodiment, the lateral opposing motion is combined with the normal pulling motion by means of lifting curved implements through fixed but adjustable spaced narrow openings. The lifting motion is generated from an eccentric mechanism, which when rotatably driven, may also produce the lateral parallel motion. Lateral parallel motion amplitude may be adjusted relative to the pulling motion by choice of eccentric dimensions.