193results about How to "Overcome friction" patented technology

A correlator system for automatic car wash has roller assemblies for supporting the front left and right wheels of a vehicle entering a car wash line. A set of guide rails or bars cooperate with the roller assemblies to adjust axial displacement and angular misalignment between the vehicle's front end and a conveyor track transporting the vehicle through the car wash facility. The rollers in the roller assembly rotate freely with minimal friction, axially displacing the front end of the vehicle and adjusting the angular misalignment of the front wheels. The low friction, easy-to-rotate rollers are provided with a plurality of braking elements that generate friction against the rollers, retarding their rotation when a worker steps thereon. The friction generated by the braking elements is insufficient to prevent roller rotation during alignment of the front end with the conveyor track. Injuries to car wash personnel caused by loss of balance when stepping on the rollers are virtually eliminated, and an accurate alignment of the vehicle's front end with the car wash conveyor track is reliably achieved.

A method and system of devices facilitate the uninterrupted transport of a payload of persons (110) or cargo along a multi-segmented guide cable (180), or zip line, suspended from a series of support structures (120). Transfer mechanisms (800, 810) allow the cable to loop to a starting location or to transport between discrete endpoints. A trolley (200) carrying the payload may be powered by gravity alone, or a motorized assist may allow the cable course to be traversed without regard to relative elevations of cable supports. Safety mechanisms (300) prevent the trolley from leaving the cable (180) unintentionally. The system enables one or more riders (110) to travel along the guide cable (180) at velocities desired for recreational purposes while assuming many body positions, such as prone, sitting or standing, to provide the sensation of flying like a bird.

A personal lift device is disclosed having a motor having an output shaft. A gearing system is operatively connected to the output shaft for increasing torque. A strap for suspending a weight is wound onto a spool and rotating the spool extends and retracts the strap. A drive connection is made between the gearing system and the spool to permit said motor to drive said spool. A brake is associated with said spool to prevent unwanted extension of said strap from said spool, when a weight is suspended by said strap. In a preferred embodiment a clutch is provided between the brake and the drive train, and the greater the weight supported by the spool the greater the braking force. An emergency lift and lower device is also provided in the event of a failure of the motor.

A hydraulic power generation system employs a plurality of buckets carried by an endless chain to receive water falling from height and drive the chain, which in turn drives a water pumping device to raise water to the height for automatic and continuous generation of power.

A capsule for endoscopic examinations and a method for assisting the advancement of the capsule through organs are provided. In addition to a device for advancing the capsule through an organ under investigation, the capsule is also provided with a device for generating movements of the capsule to reduce the edge friction impeding the advancement of the capsule. The device for generating movements of the capsule is activated using electromagnetic radiation irradiated from outside to a receiving system of the capsule. The device generates a movement, which helps overcome inhibiting frictional forces.

The flexible electrical connector is designed to facilitate electrical connections between a power receiving device, such as an at least partially electric vehicle, and a power supplying device, such as an electric vehicle charging station. The flexible electrical connector has a blade shaped housing attached to a power cord that extends to the power supplying device. The blade shaped housing has a substantially rigid end portion with an electrical interface configured to detachably mate with a corresponding electrical interface on the power receiving device. The blade shaped housing also has a handle portion made of a substantially flexible material such which is configured to flex about the rigid end portion along an arc in a single plane. As such, the flexible handle can absorb impacts it receives rather than transferring them to the rigid and breakable electrical interface components.

The invention relates to a method for the start of a power plant installation (10), which comprises a gas turbine (2), a generator (18) coupled to the gas turbine (2), and a frequency converter (27) to feed current into an electrical grid (1). In accordance with the method, during the start of the gas turbine (2), the generator (18) is connected to the electrical grid (1) via the frequency converter (27) before the operating rotational speed of the gas turbine (2) is reached, wherein the frequency converter (27) is controlled such that it generates an output current with the grid frequency. The invention further relates to a power plant installation (10) for the execution of such a method.

The invention provides a self-operated three-way valve used for a special machine in a refrigerant circulation parallel machine room. The three-way valve comprises a valve body, a low pressure air inlet pipe, a high pressure air inlet pipe and an exhaust pipe. The valve body is internally provided with a piston component, a valve seat and a sliding valve. The internal chamber of the valve body is divided into a low pressure chamber and a high pressure chamber by a piston which can axially move. A low pressure capillary is connected between the low pressure chamber and the low pressure air inlet pipe. A low pressure capillary is connected between the high pressure chamber and the high pressure air inlet pipe. The low pressure chamber and / or the high pressure chamber are / is internally provided with a spring. By the pressure difference of the suction and exhaust when a spring force and a compressor are stated, the piston component which is arranged in the valve body drives the sliding valve to be closely attached to the surface of the valve seat to slide, thus achieving the communication between the high pressure air inlet pipe and the exhaust pipe and the communication between the low pressure air inlet pipe and the exhaust pipe. The three-way valve needs no outside power, can achieve the free switching of refrigerant refrigeration circulation and the natural circulation just according to the running state of the compressor, thus sufficiently displaying the energy-saving advantage of the special machine in the refrigerant circulation parallel machine room and improving the operation reliability.

The invention provides a high-precision measurement system for three-dimensional microdeformation of a mechanical device in a high-low-temperature case, The measurement system comprises a string, a three-dimensional air flotation assembly and three-direction photoelectric displacement sensing devices, wherein each air flotation unit comprises an air flotation shaft and an air flotation sleeve; the three-direction photoelectric displacement sensing devices are respectively installed on an x-direction air flotation unit, a y-direction air flotation unit and a z-direction air flotation unit and are used for measuring the displacements on an x direction, a y direction and a z direction; an x-direction air flotation shaft is installed on a fixed plate; an x-direction air flotation sleeve is installed on the x-direction air flotation shaft in a sliding manner; the x-direction air flotation sleeve is fixedly connected with a y-direction air flotation shaft; a y-direction air flotation sleeve is installed on the y-direction air flotation shaft in a sliding manner; the y-direction air flotation sleeve is fixedly connected with a z-direction air flotation sleeve; a z-direction air flotation shaft is installed on the z-direction air flotation sleeve in a sliding manner; the upper end of the string is connected with a measured piece, and the lower end of the string is connected with the z-direction air flotation shaft of the three-dimensional air flotation assembly. The invention provides the high-precision measurement system, which has high measurement precision and is used for measuring deformation amount of the measured piece in the high-low-temperature case.

The invention relates to a large-flow high-frequency electrohydraulic exciting shock control valve drive system which comprises a large-flow high-frequency electrohydraulic exciting shock valve. The drive system also comprises a main valve end hydraulic cylinder and a transmission, wherein the main valve end hydraulic cylinder is used for driving a valve core to axially slide in a linear way; thetransmission is used for driving the valve core to rotate; the main valve end hydraulic cylinder comprises a cylinder body and a drive piston; the drive piston is fixedly installed at the end part ofthe valve core; the drive piston is used as a boundary in the cylinder body, the cylinder body approaching one side of the valve core is provided with a rod cavity, and the cylinder body at the otherside is provided with a rodless cavity; the rod cavity is communicated with a high-pressure oil box, and the rodless cavity is communicated with the high-pressure oil box by a flow valve; the transmission comprises a hydraulic motor, a drive gear, an idle gear, a driven gear and a gear accelerating mechanism; an output shaft of the hydraulic motor is connected with an input shaft of the gear accelerating mechanism, and an output shaft of the gear accelerating mechanism is connected with the valve core. The invention can increase flows, improve the exciting shock frequency and prevent overloading of a hydraulic system.

This invention deals with novel method and apparatus for positioning and motion control of the optical elements (mirrors and lenses) of a Fresnel solar concentrator tracking array which approximately eliminates gravitational torque by use of a central universal pivot or gimbals. Linkage torque is produced by induced and / or permanent dipole coupling to an electronic grid to produce angular deflection, and rotational motion that is enhanced by the presence of highly polarizable material. This system is ideally suited for maximization of solar energy focused by the array onto a receiver. Since there are no mechanical linkages, the instant invention is applicable for fabrication from the mini- to the nano-technology realm. The elimination of gravitational torque by balancing the optical elements on a universal pivot or gimbals greatly reduces the power required for the optical elements to track the sun and focus sunlight onto a receiver.

An information presenting device. The device is arranged to be capable of assuming a first flattened configuration, for transport or storage, and of assuming a second extended and hence self-supporting configuration. The device comprises at least two panels joined together along the respective edges of at least two of the panels such that the device, having assumed the second configuration, forms a hollow cylinder, and at least one locking member, arranged between the panels 4, for continuously adjustable locking of the device in the first or second configuration, the locking member comprising a first part and a second part, the first part being slidably connected to the second part and the locking member being self-locking by a friction band coupling formed between contact surfaces of the first part and the second part of the locking member.

The invention relates to a three-dimensional deformation measuring device for a measured piece in a high-temperature and low-temperature box. The measuring device comprises a string, a three-dimensional air floating assembly and signal acquisition modules with encoders in three directions. Each air floating unit comprises an air floating shaft and an air floating sleeve. The signal acquisition modules with the encoders in the three directions are respectively installed on an x-direction air floating unit, a y-direction air floating unit and a z-direction air floating unit. An x-direction air floating shaft is installed on a fixed plate. An x-direction air floating sleeve is slideably installed on the x-direction air floating shaft. The x-direction air floating sleeve is fixedly connected with a y-direction air floating shaft. A y-direction air floating sleeve is slideably installed on the y-direction air floating shaft. The y-direction air floating sleeve is fixedly connected with a z-direction air floating sleeve. A z-direction air floating shaft is slideably installed on the z-direction air floating sleeve. The upper end of the string is connected with the measured piece and the lower end of the string is connected with the z-direction air floating shaft of the three-dimensional air floating assembly. The three-dimensional deformation measuring device for the measured piece in the high-temperature and low-temperature box provided by the invention has the advantage of high measurement precision.

A highly polarizable high dielectric constant positioning and motion control of the elements (approximately planar mirrors) of a Fresnel reflector solar concentrator tracking heliostat array wherein the elements are suspended with the center of mass above the swivel point, below the swivel point, or have an internal-swivel. The torque to produce angular deflection, and rotational motion is provided by induced and / or permanent dipole coupling to an electronic grid. The force interaction is greatly enhanced by securing a high dielectric material adjacent to each mirror. Thus forces and torques are produced without the use of motors. This allows maximization of solar energy focused by a low-profile concentrator array onto a receiver. Dynamic motion can be controlled over a wide range of dimensions from nanometers to decimeters.

A bogie hanging system parameter testing device comprises a gantry frame, a moving platform and actuators. Two upper three-dimensional force measuring platforms are connected to the lower face of a horizontal beam of the gantry frame. Switching plates are arranged on the upper three-dimensional force measuring platforms. Locating holes are formed in the switching plates. The upper three-dimensional force measuring platforms are connected with a bogie upper swing bolster through the locating holes and the switching plates. Four lower three-dimensional force measuring platforms are arranged on a lower moving platform. A clamp is arranged in each lower three-dimensional force measuring platform. The clamps are connected with wheel pairs of a tested bogie. Three vertical actuators are connected below the moving platform. The front face of the moving platform is connected with a horizontal actuator. The side face of the moving platform is connected with a longitudinal actuator. According to the testing method of the device, convenience and quickness are achieved, testing efficiency is improved, a testing structure is simple, and the rigidity parameters of a primary suspension system and a secondary suspension system in a reorganize-and-outfit state can be tested. When loading force borne by a bogie suspension is tested, the three-dimensional force measuring platforms are used for measuring stress situations in various directions directly. Interference of friction force and retardation force between the platforms and the bogie and between the platforms and a foundation is overcome, and testing accuracy is high.

The invention concerns a fail-safe valve having a valve element, and a control motor being connected with the valve element via a driveline. It is endeavored to ensure the tightness of the refrigeration system in a simple manner. For this purpose, it is ensured that the valve element is located inside and the control motor outside a closed valve housing, that the drive line has a magnetic coupling, which acts through the housing, and that the valve element is pressure-released. In addition, a resetting device is provided that causes the valve element to be returned to a predetermined position upon the undesired cessation of control motor operation.

In one general embodiment, a seismic tool system includes a cable adapted to be deployed within a borehole; and one or more seismic tools suspendable from the cable in the borehole. At least one of the seismic tools includes at least one seismic sensor enclosed within a housing; one or more rollers attached to the housing and adapted to engage the borehole; and a bow spring attached to the housing and including one or more rollers adapted to engage the borehole. The one or more of the rollers are in acoustic communication with the seismic sensor.

This application provides a multiple or single arm oscillating, optionally rotating amusement ride with reverse pendulum oscillating arm or arms that are angularly mounted to a horizontal tubular frame member of the rotating supporting structure. In one embodiment, there is a moveable adjustable counterbalance weight. The unique principal of the ride is that it that when the ride is rotating and the oscillating arm is moved from the lower position to the upper position the rotational velocity is increased through conservation of angular momentum producing a spinning “Ice dancer” effect. Tie rods or optionally a gimble and cable system is used to maintain stability and upright positioning of the gondola.

The flexible electrical connector is designed to facilitate electrical connections between a power receiving device, such as an at least partially electric vehicle, and a power supplying device, such as an electric vehicle charging station. The flexible electrical connector has a blade shaped housing attached to a power cord that extends to the power supplying device. The blade shaped housing has a substantially rigid end portion with an electrical interface configured to detachably mate with a corresponding electrical interface on the power receiving device. The blade shaped housing also has a handle portion made of a substantially flexible material such which is configured to flex about the rigid end portion along an arc in a single plane. As such, the flexible handle can absorb impacts it receives rather than transferring them to the rigid and breakable electrical interface components.

An information presenting device. The device is arranged to be capable of assuming a first configuration, in which the device is flattened for transport or storage, and of assuming a second configuration, in which the device is extended and hence self-supporting. The device comprises at least two panels 4, made of a rigid material, which are joined together along the respective edges of at least two of the panels such that the device, having assumed the second configuration, forms a hollow cylinder, and at least one locking member 6, arranged between said panels 4, for continuously adjustable locking of the device in said first or second configuration, the locking member 6 comprising a first part 8a and a second part 8b, the first part 8a being slidably connected to the second part 8b and the locking member 6 being self-locking by a friction band coupling formed between contact surfaces of the first part 8a and the second part 8b of the locking member 6.

A window covering includes an at least partially light occluding layer that can be attached to a lintel at an upper end and with a bottom rail at a lower end that can be moved to selectively cover the window. Cords are fixed to the upper end of the layer and extend past the bottom rail. The bottom rail includes a friction module which applies sufficient friction to the cords to keep the bottom rail fixed to the cords unless additional forces are applied to the bottom rail to move the rail. A pair of engagement surfaces are spring biased against the cords to apply friction forces. A lever acts on the springs to adjust for variations in friction forces so that the bottom rail remains horizontal. The bottom rail is formed of a closable structure with a cap hinged to a base for ease in forming the bottom rail.