| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 475254000 | CONDITION RESPONSIVE CONTROL | 19 |
| 20110021307 | Rotary Actuator - A rotary actuator comprises a planetary gear assembly having a sun gear, a drive input, and a drive transmission arrangement whereby rotary drive is transmitted between the drive input and the sun gear, wherein the drive transmission arrangement incorporates a brake device operable to apply a braking load to the sun gear in the event that the torque applied to the drive transmission arrangement in at least a first rotary direction exceeds a predetermined level. | 01-27-2011 |
| 20110183805 | MOTOR HAVING AN INTEGRATED TORQUE SENSOR - A motor unit comprises a housing for containing a motor, a motor shaft for receiving a motor provided driving force, a torque sensor mechanism for detecting torque, and a controller for controlling power to the motor in response to a detected amount of torque. An actuator couples the torque sensor to a sensor of the controller. The actuator is configured to move relative to the controller sensor thereby causing the sensor to produce a signal indicative of the detected level of torque. The controller is contained within the housing of the motor. The motor unit may also have an auxiliary shaft for receiving an externally provided driving force with a first torque transmission path for transferring the externally provided driving force to a drive mechanism and a second torque transmission path for transferring the motor provided driving force to said drive mechanism. A first one way drive means is provided in the first torque transmission path between the auxiliary shaft and the drive mechanism such that when the drive mechanism is being driven by the motor provided driving force through the second torque transmission path, the auxiliary shaft is able to freewheel. The motor unit can drive any apparatus, but may be used in a pedal driven apparatus such as a bicycle where an externally provided driving force is provided by manually operable pedals of said apparatus which are fixed for rotation with the auxiliary shaft. In this case, the auxiliary shaft comprises a pedal spindle of the bicycle and the drive mechanism comprises a sprocket or belt drive. | 07-28-2011 |
| 20120142484 | POWER TOOL WITH AN AUTOMATIC SPEED REGULATING DEVICE - A power tool is provided with a device for automatically switching transmission output, including at least one stage of transmission part having a sun gear, a planetary gear carrier, and a gear ring for transmission, a sensing system having a sensing component for sensing variation of operating condition, and a control device cooperated with the sensing system for controlling the transmission output of the transmission part. A first transmission output is generated when the sun gear, the planetary gear carrier, and the gear ring in the same stage are in a first transmission state, and a second transmission output is generated when the variation of operating condition received by the sensing component reaches a predetermined value and then being fed back to the control device by the sensing system. | 06-07-2012 |
| 20120178578 | TORQUE TRANSMITTING DEVICE CONTROL STRATEGY FOR A NINE SPEED TRANSMISSION - A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes. A hill hold control strategy is provided for locking the transmission without using the dry launch clutch by selectively engaging combinations of the clutches and brakes. | 07-12-2012 |
| 475255000 | Eccentrically weighted planet | 1 |
| 20080312025 | Stepper Motor Driven Proportional Actuator - A stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. In a single nozzle embodiment, pressure balance is maintained by a spring preload on one end of the piston in one embodiment, and by hydraulic pressure acting on a double diameter end portion of the piston in another embodiment. As the cam is rotated, the change in the gap between the nozzle and the cam changes the pressures on the control piston ends, which forces the piston in the direction that will re-equalize the pressure based on the cam-nozzle gap. As a result, the head or rod of the actuator piston receives high pressure flow, thereby moving the actuator. Movement of the actuator rod provides mechanical feedback to the cam, causing the cam to move back to its mechanical null position. | 12-18-2008 |
| 475257000 | Speed responsive control adjusted or opposed by torque | 2 |
| 20100105514 | Drive Assembly having ring gear friction clutch - A drive assembly for use with a mobile machine is disclosed. The drive assembly may have a flywheel, a planet carrier having a plurality of planet gears, and a damper operatively connecting the flywheel to the planet carrier. The drive assembly may also have a sun gear configured to mesh with the plurality of planet gears, a ring gear configured to mesh with the plurality of planet gears, and a friction clutch configured to inhibit rotation of the ring gear when a torque of the drive assembly is less than a threshold value. | 04-29-2010 |
| 20120190495 | DYNAMIC DAMPER DEVICE - A dynamic damper device includes a planetary gear mechanism including plural differentially rotatable rotating elements, an elastic member that couples a rotating shaft rotated by being transmitted with a power with a first rotating element of the planetary gear mechanism, speed control devices that are coupled with second rotating elements different from the first rotating element and control rotation speeds of the second rotating elements, and a torque control device that is coupled with the first rotating element and controls torque acting on the first rotating element. Accordingly, the dynamic damper device achieves an effect that vibration can be appropriately reduced. | 07-26-2012 |
| 475258000 | Centrifugally controlled clutch or brake | 4 |
| 20110015027 | SPEED CONTROLLER FOR MOTOR PREVENTING INTERFERENCE FROM REVERSE INPUT - Disclosed is a speed controller for a motor, which gives a normal rotation and constant speed output to an output cover when a driving shaft of the motor rotates in a normal direction and a normal rotation and speed-changed output to the output cover when the driving shaft of the motor rotates in a reverse direction, wherein when the restriction means are restricted to the driving shaft at constant speed and changed speed, at least one of the two restriction means is not restricted at any position, so that interference caused by a reverse input can be prevented although rotation is reversely input from the output cover. In the speed controller for motor preventing interference from reverse input according to the present invention, a key is formed to protrude on an outer circumference of the driving shaft; a pawl-mounting ring having a key groove with a greater width than the key is coupled to the key; a constant speed pawl and a speed changing pawl having opposite directions are mounted to the pawl-mounting ring so that lower portions of them extend to the key groove; and the pawl-mounting ring is frictionally fixed by an additionally fixed friction pin, whereby at least one of the constant speed pawl and the speed changing pawl is made lie down by the key according to a rotation direction of the driving shaft. Also, according to the present invention, the driving shaft has a polygonal outer circumference; a ball-mounting ring is coupled to the outer circumference, the ball-mounting ring including therein a constant speed ball and a speed changing ball spaced apart from each other by a predetermined distance so that upper and lower sides of them protrude; and the ball-mounting ring is frictionally fixed by an additionally fixed friction pin, whereby at least one of the constant speed ball and the speed changing ball escapes from the outer circumference according to a rotation direction of the driving shaft. | 01-20-2011 |
| 20120077636 | VEHICLE LAUNCH DEVICE - A launch device includes a planetary gear set having a first member, a second member, and a third member. An input member and an output member are operatively connectable for rotation with different ones of the members of the planetary gear set. A centripetal clutch, referred to herein as a first centripetal clutch, operatively connects two of the members of the planetary gear set and is configured to transmit torque with a torque capacity that decreases as a difference between the speed of rotation of the output member and the speed of rotation of the input member decreases. | 03-29-2012 |
| 475259000 | One-way clutch or brake | 2 |
| 20090215577 | Planetary transmission - A planetary transmission comprising an input member, an output member, a planetary gear assembly mechanically disposed between the input member and the output member, a centrifugal clutch mechanically disposed between the input member and the output member, a one-way clutch mechanically disposed between the input member and the output member, the one-way clutch for directly coupling the input member and the output member from zero rotational speed up to a first rotational speed, the centrifugal clutch for directly coupling the input member and the output member from a second rotational speed greater than zero rotational speed to a third rotational speed which is in excess of the first rotational speed, and a brake member for selectively controlling rotation of the planetary gear assembly. | 08-27-2009 |
| 20120100953 | TWO-SPEED TRANSMISSION MODULE WITH PASSIVE AUTOMATIC SHIFTING - A multi-speed transmission module is provided that can passively and automatically upshift and downshift between two speed ratios, even if the speed of the output member does not decrease. The transmission module includes a planetary gear set. A torque-transmitting mechanism is engageable to connect the two members of the planetary gear set for common rotation. A centripetal member is configured to apply a first axial force urging engagement of the torque-transmitting mechanism. The first axial force increases as the speed of the output member increases. A torque-to-thrust actuator, such as a ball screw actuator, is connected for rotation with the input member and is configured to apply a second axial force opposing engagement of the torque-transmitting mechanism. | 04-26-2012 |
| 475263000 | Overload release | 6 |
| 20110177906 | DAMPER DEVICE - A damper device includes a damper unit arranged on a motive power transmission path between a motive power source and a gear mechanism and configured for absorbing torque fluctuations that might be generated by elastic force between the motive power source and the gear mechanism. The damper device also includes a limiter unit that produces slip when the torque fluctuations have exceeded a preset value. The limiter unit is arranged on a motive power transmission path between the damper unit and the gear mechanism. | 07-21-2011 |
| 20110183806 | SELECTABLE TORQUE TRANSMITTING DEVICE - A torque transmitting device includes a first race, a second race, and a biasing member. The torque transmitting device selectively transmits a torque in a rotational direction between a first member and a second member. The second member includes a surface that defines an annular bore having a decreasing diameter in an axial direction. The second race opposes the first race and includes a surface that opposes the second member and has the decreasing diameter in the axial direction. The first race and the second race define a predetermined torque limit. The biasing element biases the second race against the second member with a predetermined force that contributes to a predetermined holding torque between the surface of the second race and the surface of the second member that is less than the predetermined torque limit. | 07-28-2011 |
| 20140323261 | Transmission for Shredding Machines - A transmission for shredding machines includes a drive shaft, a driven shaft, and an intermediate shaft, with at least two spur gears each, at least one hydraulic shift clutch each, and at least one overload clutch. The shafts can releasably be coupled with each other via the spur gears and the hydraulic shift clutches, and the driven shaft can releasably be coupled with an output shaft by way of the overload clutch. Use of the transmission in a shredding machine is also discussed. | 10-30-2014 |
| 20140323262 | OVERLOAD PROTECTION - An overload protection device in combination with a prime mover and gearbox transmission supplies torque through a gearbox transmission to a load. An input shaft with is driven by the prime mover and rotates therewith. An external spline on the input shaft mates with an input gear having an internal spline. Upon overload of the gearbox transmission, the input shaft fractures an annular groove in the input shaft. A bushing prevents travel of the portion of the input shaft which is driven by the prime mover and which continues to spin after the fracture. | 10-30-2014 |
| 20150018155 | TORQUE LIMITER RESPONSIVE TO OUTPUT TORQUE - A torque limiter limits transmission of torque between an input shaft an output shaft. The torque limiter may be incorporated in a geared rotary actuator for actuating an aircraft control surface. The torque limiter is responsive to output torque associated with the output shaft instead of input torque associated with the input shaft. The torque limiter includes a structural ground and a gear assembly for transmitting rotational motion of the input shaft to the output shaft. The gear assembly includes a reference gear coupled to the structural ground such that movement of the reference gear relative to the structural ground is dependent upon an output torque at the output shaft. The reference gear is stationary relative to the structural ground when the output torque is below an output torque limit, and the reference gear moves relative the structural ground when the output torque exceeds the output torque limit. | 01-15-2015 |
| 20180023675 | APPARATUS UTILIZING PLANETARY GEARSET COUPLED TO A CONSTANT TORSION SPRING | 01-25-2018 |
| 475266000 | Stepped, torque responsive ratio change | 1 |
| 20110082003 | Control of Parallel Reaction Brakes in a Transmission - A method for controlling brakes of an automatic transmission including a first brake arranged in parallel with an overrunning brake between a planet pinion carrier and a housing, includes using the overrunning brake to provide brake torque equal to or less than a reference brake torque under positive torque conditions, increasing a torque capacity of the first brake when brake torque is greater than the reference brake torque, and fully engaging the first brake. | 04-07-2011 |
| 475267000 | With flywheel or centrifugal weight control | 1 |
| 20090318256 | Force Amplification Method and Apparatus by the Harnessing of Centrifugal Force - A force or energy amplifying apparatus ( | 12-24-2009 |
