201results about How to "Free spins" patented technology

Connectors for interconnecting rods, fixed to vertebrae and other bones of a subject include a body portion and two recesses or pockets for receiving the rods. These connectors are generally able to be secured to the rods by a tightening a fastener or retaining member from above the spine, which can facilitate the procedure for the surgeon. The connectors can include rotatable or stationary pockets, mating members that pivot and / or translate within the coronal plane of the subject to adjust to the positions of the rods, and extension shafts that pivot to adjust for rod angle.

A PRP separator-concentrator comprising a housing, a separation assembly, and a concentration assembly. The concentration assembly has a concentration sump. An axially concentric rigid stationary outlet tube is secured to the housing and extends through the separation assembly to the sump. The separation assembly is attached to and positioned above the concentration assembly to form a combined separator-concentrator assemblage that is rotatable about the outlet tube. The separation assembly includes a separation chamber lined with a depth filter having pores and passageways that are sized to receive and entrap erythrocytes during centrifuging. The concentration chamber has a floor for supporting desiccated beads and a wall with at least one opening closed with a screen. The concentrator can have a distribution of upright screen supports, the upright screen supports having an inner surface and an outer surface, the cylindrical screen being supported on the outer surface of the upright screen supports. A stationary bead rake can be secured to the stationary tube and extend outward therefrom, the rake having distal ends that are spaced at a distance from the upright screen supports. The rake can comprise a longitudinal body, the center of which is secured to the rigid outlet tube. The separator-concentrator includes a valve assembly connecting the separation chamber and the concentration chamber. PRP concentrate is produced by contacting PRP with desiccated beads while the beads are stirred with a stationary rake, and rotating the concentration chamber at centrifugal speeds to separate PRP concentrate from the beads.

A PRP separator-concentrator comprising a housing, a separation assembly, and a concentration assembly. The concentration assembly has a concentration sump. An axially concentric rigid stationary outlet tube is secured to the housing and extends through the separation assembly to the sump. The separation assembly is attached to and positioned above the concentration assembly to form a combined separator-concentrator assemblage that is rotatable about the outlet tube. The separation assembly includes a separation chamber lined with a depth filter having pores and passageways that are sized to receive and entrap erythrocytes during centrifuging. The concentration chamber has a floor for supporting desiccated beads and a wall with at least one opening closed with a screen. The concentrator can have a distribution of upright screen supports, the upright screen supports having an inner surface and an outer surface, the cylindrical screen being supported on the outer surface of the upright screen supports. A stationary bead rake can be secured to the stationary tube and extend outward therefrom, the rake having distal ends that are spaced at a distance from the upright screen supports. The rake can comprise a longitudinal body, the center of which is secured to the rigid outlet tube. The separator-concentrator includes a valve assembly connecting the separation chamber and the concentration chamber. PRP concentrate is produced by contacting PRP with desiccated beads while the beads are stirred with a stationary rake, and rotating the concentration chamber at centrifugal speeds to separate PRP concentrate from the beads.

A non-permeable pipe connector structure, the design of which effectively prevents external material (such as vapor and miscellaneous substances, etc.) intrusion. To obstruct the intrusion of external matter into the pipe connector, a ball bearing holder is disposed at the pipe connector, enabling even greater ball bearing durability and, furthermore, free rotation. A protective flange is disposed as the bottom surface of the ball bearing holder such that when the coupling nipple and the connector base are fastened together, the protective flange effectively blocks external matter, thereby precluding entry to avert subsequent damage to the bearings. Furthermore, a rubber sealing ring sleeved onto the annular groove prevents vaporous or acid and alkaline substance intrusion into the bearings, and has safe defensive effectiveness.

A method is described for recalibrating coordinate positioning apparatus (2) after a disturbance, such as a stylus replacement. The coordinate positioning apparatus comprises a platform (8), a measurement probe (12) and a probe head (10) for reorienting the measurement probe (12) relative to the platform (8). A calibration data set is taken for the coordinate positioning apparatus (2) that comprises datum data for a plurality of orientations of the measurement probe. The datum data includes at least first datum data for a first nominal orientation of the measurement probe. After a disturbance to the coordinate positioning apparatus (2), the calibration data set is updated by acquiring one or more position measurements and calculating a first correction from the one or more position measurements. The first correction describes any change in the first datum data following the disturbance and is used to update the datum data for a plurality of different orientations of the measurement probe (12). Corresponding apparatus is also described.

A towrope retriever system for a watercraft for simplifying and improving the safety of the towrope handling, storage, reeling out, and reeling in of a towrope, in which the towrope retriever is connected to or integrated into a support unit such as a tower or pylon securely attached to the watercraft, substantially increasing the overall height of the watercraft, and allowing the performer to jump higher and perform more challenging aerial maneuvers, is disclosed. The towrope retriever may be rotatable to allow the performer a greater flexibility of movement and may be easily removed for storage.

A rotation positioning device for a coil of a magnetic resonance imaging apparatus, having a cavity in the coil for accommodating a part to be examined, has a backing member that can freely rotate within this accommodating cavity. The backing member is provided with a first driving member and a first rotating member, and the coil is provided with a second driving member and a second rotating member. The first driving member and the second driving member form a transmission pair, and the first rotating member can rotate relative to the second rotating member under the drive of the first driving member and the second driving member. The second driving member can be driven manually or by an external driving source connected thereto to drive the first driving member, thereby driving the backing member to rotate via the cooperation of the first rotating member and the second rotating member. Also, by appropriate configuration of parameters, such as position and size, of the first driving member and the second driving member, the rotation angle or range of the backing member can be controlled precisely and quantitatively.

The present invention discloses a structure for a multi-surface magnetic block, embedded with magnetic assemblies, wherein the block is embedded with magnetic assemblies, via which assemblies any two blocks can be attached and spliced with each other; the block is formed by assembling sealing covers and a main housing body, and the sealing covers are fixedly connected to the main housing body to form the whole block; the magnetic assemblies are constituted by spherical ball magnets and cavities, the cavities are distributed at the positions in the main housing body adjacent to the sealing covers, and the cavities are encapsulated to be closed cavities after the sealing covers are fixed onto the main housing body; the ball magnets are embedded in the closed cavities with free rotation. The solution greatly improves block manufacturing efficiency, and reduces manufacturing difficulty and cost, thereby having an enhanced practicability and a great market value.

A conveyor system, which in particular is a roller conveyor, has freely rotatable supporting rollers (16) as well as transmission elements (26) driven by shafts (18). The transmission elements (26) are disc-shaped and engage into slot-shaped recesses (48) formed in the bottom face (34) of a workpiece carrier (30). In a curve and / or branch (86), no disc-shaped transmission elements (26) are provided. The workpiece carrier (30) is moved in a curve and / or branch (86) by driven conveyor rollers (90) provided there. The conveyor rollers (90) transmit force to the bottom face (34) of the workpiece carrier (30) by friction.

A tension device that prevents a window covering from operating properly until the tension device is installed. The tension device incorporates a drive wheel, casing, anchoring arm and drive stud. The drive stud has two sections, one keyed and one cylindrical. Before the tension device is installed, the keyed section of the drive stud engages the drive wheel and the casing, thereby preventing them from rotating relative to each other. When the tension device is installed, the drive stud must be inserted into the anchoring arm causing the keyed section of the drive stud to disengage the drive wheel and thereby allow the drive wheel to rotate relative to the casing.

A modular robotic system that includes a plurality of self-configuring robots. Each self-configuring robot includes a frame structure having a plurality of cylindrical bonding magnets positioned along the edges of the frame structure. The frame structure includes magnetic, non-gendered, hinges on any of the edges of the frame. The hinges provide enough force to maintain a pivot axis through various motions. The cylindrical bonding magnets are free to rotate allowing for multiple self-configurations with other like self-configuring robots. A movement generator is positioned within the frame structure that pivots to generate multi-axis movement allowing both robust self-reconfiguration with the other self-configuring robots and independent locomotion.

The invention discloses an arc glass edge grinding machine. The arc glass edge grinding machine comprises a box body, positioning suction cups and a grinding mechanism. The positioning suction cups are connected with the box body through a first cantilever. The other end of the first cantilever is connected with a second cantilever in a rotating manner. The end of the second cantilever is connected with a grinding mechanism. The grinding mechanism comprises an arc-shaped supporting frame, a fixed box, a positioning buckle plate and a first motor. The top end of the arc-shaped supporting frame is connected with the fixed box. The positioning buckle plate is arranged on the side face of the fixed box. The first motor is limited by the positioning buckle plate. A second motor, a hydraulic oil tank and a draught fan are arranged in the box body. An air inlet pipe and an air outlet pipe are arranged on the draught fan. The arc glass edge grinding machine is simple in structure and high in practicability, can conduct edge grinding on arc-shaped edges of conventional glass and can conduct arc edge grinding on glass of different sizes as well, the stability of glass during edge grinding is improved, glass uniformly bears force, the service life of the edge grinding machine is prolonged, and economic benefits are remarkable.

An apparatus is provided for cleaning paint rollers and / or brushes. It comprises a roller cover / brush holder that may be coupled to a drill or other power tool, and a container and cap assembly. Advantageously, the container accommodates the holder and a roller cover or paintbrush with a minimal effective volume of cleanser. The cap closes and substantially seals the container to contain spray or spillage during high-speed rotation of the holder within the container. In use, the container is filled with cleanser, such as soapy water, and the roller is spun for several minutes. The container is drained, then refilled with rinse water and the process is repeated as needed. The roller or brush may be spun dry after cleaning, or between wash and rinse cycles. The apparatus provides effective cleaning with a reduced volume of water or cleanser and requires minimal clean-up.

A round baler has an unloading apparatus downstream of a bale chamber provided with movable carrying elements, for example rollers, belts, etc., so that a round bale discharged in rotating motion from the bale chamber is able to maintain its spin and twine wound onto it does not fall off again. To prevent the rotary motion of the round bale from being slowed or even terminated upon transfer to the unloading apparatus, stationary portions of a superstructure of the round baler, for example, a cross-stay serving as an axle, are covered by a movable cover.

A device for applying tape from a roll of tape (e.g., masking tape) along a surface to be protected with an edge of the tape extending along a juncture between the surface to be protected and a surface to be treated disposed at about a right angle with respect to the surface to be protected. The device includes a two portion housing around and journaling the tape roll, each portion having a tape contacting part of its inner surface in a first plane, and having in a second plane a guide part of its outer surface adapted to be slid along the surface to be treated. The first and second planes on each of the housing portions can be parallel or at a small angle with respect to each other so that they intersect along an application side of the housing. A pressure application structure is mounted on the housing with an outer edge each end of the pressure application structure at the intersection (if they intersect) of the first and second planes for a different adjacent one of the housing portions. The pressure application structure is mounted on the housing for limited pivotal movement in a plane at about a right angle with respect to a plane along the guide surface. The roll of tape can be mounted in the housing for free rotation and axial movement. Tape from the roll extends around the periphery of the pressure application structure so that the dispenser can be manually positioned with either housing portion against the surface to be treated and moved to apply the tape, whereupon pressures applied to the tape being dispensed by the pressure application structure in the device will cause the side surface of the roll of tape to move toward or into contact with the tape contact part of the inner surface of the housing portion being slid along the surface to be treated so that the tape is accurately applied.

A fluorescent adapter having a housing including a tip contact compatible with an electrical socket, a threaded ring contact compatible with the electrical socket, the ring contact surrounding the housing and rotatable with the housing when the housing is rotated in a first direction and not rotatable with the housing when the housing is rotated in an opposite direction, and a fluorescent ballast supported by the housing and having input electrodes in electrical contact with the tip contact and the ring contact, respectively, and output electrodes for removably receiving the contact pins of a fluorescent lamp. The adapter is easily inserted into the socket but is not removable after insertion.

A key operated switch is provided for disabling an automobile air bag passive restraint system. The two or four position switch includes a housing, a rotor, a plurality of rotationally actuated electrical switch elements, a key ejecting mechanism, and a positive positioning detent. The switch assembly is arranged such that a transverse surface of the rotor defining a key slot is accessible through the housing. The key slot allows an operating key to be manually inserted into the rotor. In or order to insert the key, however, the therein, a certain minimum amount of force must be applied to the key sufficient to overcome the key ejecting mechanism. In the absence of such minimum insertion force, the key ejecting mechanism will act expel the key from the rotor. Once inserted into the rotor, the key may be manually rotated which causes corresponding rotation of the rotor. The rotation of the rotor in turn, actuates select electrical switch elements attached to the rotor, according to the angular position of the rotor. The electrical switch elements define a plurality of distinct switch states, each corresponding to a particular angular position of the rotor. Finally, the positive positioning detent forces the rotor to an angular position corresponding one of the distinct switch states defined by the electrical switch elements during those periods when no external torque is being applied to the rotor.

A portable face structure counter light measuring system is disclosed that includes flexible gauge beam and gauge outfit. Thereinto,the flexible gauge beam consists of base plate connected with rotation axis, first pivot joint, second pivot joint, first carbon fiber pipe, third pivot joint, fourth pivot joint, second carbon fiber pipe, fifth pivot joint, and sixth pivot joint. Each pivot joint can rotate with its rotation axis freely; the wireless transmission angular encoders are mounted on the pivot joint. Said gauge outfit connects with the sixth pivot joint via rotation axis. Said gauge outfit is contact-making gauge outfit or raster scanning head. The invention uses the data of critical characteristic dimension and contour acquired by contact-making gauge outfit and the cloud point data of complex work surface acquired by the raster scanning head, the data measured by two methods can be converted into the same coordinate system to improve the measurement velocity and accuracy. The portable flexible gauge beam can rotate freely, it is convenient to use and carry.

An anti-winding assembly reduces or prevents debris from winding on a trimmer and / or makes them easier to remove. The trimmer includes a trimmer head mounted to a rotatable arbor and supporting one or more cutting lines. The anti-winding assembly includes a collar positionable between the trimmer head and an adjacent trimmer component, and a shield positioned radially outward of the collar. The shield covers gaps between the collar and the trimmer head and between the collar and the adjacent trimmer component. The assembly reduces exposure to pinching gaps and to powered rotating parts that enable tight windings that can accumulate to lock trimmer rotation.

A compressor that includes a rotor assembly, a stator assembly and a heat sink assembly. The rotor assembly includes a shaft to which a bearing assembly and a rotor core are secured. The heat sink assembly is then secured to the bearing assembly and to the stator assembly.