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4920 results about "Pendulum" patented technology

A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force acting on the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing.

Measuring transducer of vibration-type

ActiveUS7360451B2Improve density dependence of zero-pointWorking range of the measuring transducer can,Direct mass flowmetersDirect flow property measurementCouplingTransducer
A measuring transducer includes a transducer housing, as well as an internal part arranged in the transducer housing. The internal part includes at least one curved measuring tube vibrating, at least at times, during operation and serving for conveying the medium, as well as a counteroscillator affixed to the measuring tube on the inlet-side, accompanied by formation of a coupling zone, and to the measuring tube on the outlet-side, accompanied by the formation of a coupling zone. The internal part is held oscillatably in the transducer housing, at least by means of two connecting tube pieces, via which the measuring tube communicates during operation with the pipeline and which are so oriented with respect to one another, as well as with respect to an imaginary longitudinal axis of the measuring transducer, that the internal part can move during operation in the manner of a pendulum about the longitudinal axis. The measuring tube and the counteroscillator are additionally so embodied and so oriented with respect to one another that both a center of mass spaced from the imaginary longitudinal axis of the measuring tube, as well as also a center of mass of the counteroscillator spaced from the imaginary longitudinal axis, lie in a common region of the measuring transducer spanned by the imaginary longitudinal axis and the measuring tube, and that the center of mass of the measuring tube is spaced farther from the longitudinal axis than the center of mass of the counteroscillator.
Owner:ENDRESS HAUSER FLOWTEC AG

Measuring transducer of vibration-type

A measuring transducer includes a transducer housing, as well as an internal part arranged in the transducer housing. The internal part includes at least one curved measuring tube vibrating, at least at times, during operation and serving for conveying the medium, as well as a counteroscillator affixed to the measuring tube on the inlet-side, accompanied by formation of a coupling zone, and to the measuring tube on the outlet-side, accompanied by the formation of a coupling zone. The internal part is held oscillatably in the transducer housing, at least by means of two connecting tube pieces, via which the measuring tube communicates during operation with the pipeline and which are so oriented with respect to one another, as well as with respect to an imaginary longitudinal axis of the measuring transducer, that the internal part can move during operation in the manner of a pendulum about the longitudinal axis. The measuring tube and the counteroscillator are additionally so embodied and so oriented with respect to one another that both a center of mass spaced from the imaginary longitudinal axis of the measuring tube, as well as also a center of mass of the counteroscillator spaced from the imaginary longitudinal axis, lie in a common region of the measuring transducer spanned by the imaginary longitudinal axis and the measuring tube, and that the center of mass of the measuring tube is spaced farther from the longitudinal axis than the center of mass of the counteroscillator.
Owner:ENDRESS HAUSER FLOWTEC AG

Pendulum eddy current tuning mass damper device

The invention relates to a pendulum eddy current tuning mass damper device which comprises a support, a steel cable, a cable-length adjusting device, a mass block, a permanent magnet adjustment frame, a permanent magnet, a copper plate, a magnetic iron plate, a copper plate and magnetic iron plate adjusting frame, a limiting stopper and a limiting damper. The mass block is formed by connecting of a steel plate through bolts and is hung on the support through the steel cable, the length of the steel cable is adjusted by the cable-length adjusting device, the permanent magnet adjusting frame is installed on the bottom of the mass block, the magnetic iron plate is overlapped on the bottom of the copper plate, and the copper plate and the magnetic iron plate are connected on the copper plate and magnetic iron plate adjusting frame through the bolts. The copper plate and magnetic iron plate adjusting frame is installed on the structural base, the limiting stopper is placed on the periphery of the bottom of the mass block, one end of the limiting damper is connected on the limiting stopper, and the other end of the limiting damper is connected on the structural base which is placed below the limiting damper. The pendulum eddy current tuning mass damper device is long in service life, high in reliability, maintenance-free and high in sensibility and the like, damping adjustment is accurate, convenient and wide in adjustment range, and the friction of the whole TMD structure is nearly zero.
Owner:SHANGHAI RES INST OF MATERIALS CO LTD

Wiper device for the windows of motor vehicles

A wiper apparatus is proposed that is used to clean windows of motor vehicles. The wiper apparatus has a wiper arm (18), guided on the motor vehicle and driven in pendulum motion, on whose free end, remote from the pendulum shaft (88), a wiper blade (10), elongated transversely to the pendulum direction (double arrow 86) and capable of being pressed against the window (28), is separably hinged via a connection device (14) that has coupling elements (22 and 16) associated with the wiper arm and the wiper blade, respectively, wherein the pivot axis (54) extends substantially in the pendulum direction, and the wiper apparatus has at least one support shoulder (44, 46 and 68), solidly connected to the wiper arm and pointing toward the pendulum shaft (88), which shoulder is located opposite an associated interception shoulder (62), solidly connected to the wiper blade and pointing away from the pendulum shaft (88). To assure problem-free mounting of the wiper blade on the wiper arm and problem-free removal of the wiper blade from the wiper arm, even if for structural reasons the wiper arm cannot be raised in a plane that is vertical to the window, transverse to the wiping direction, at least one of the two shoulders (44, 46, 68; 62) can be moved counter to a restoring force all the way out of the opposed position relative to the other shoulder (62; 44, 46, 68).
Owner:ROBERT BOSCH CORP
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