Resources Contact Us Home
Device for tilt-free translation of one plate relative to a reference plate

Image Number 2 for United States Patent #5742113.

A device for the tilt-free movement of one solid body with respect to a reference body is achieved by fixing first and second plates, illustratively with large central apertures, in spaced-apart parallel planes with cylindrical flexure tubes sandwich therebetween. Each of the flexure tubes includes an upstanding piezoelectric or electro-strictive cylinder therewithin. The flexure tubes are aligned radially from the common central axis of the plates and are conveniently at 120 degree angles with respect to one another to achieve symmetry. The piezoelectric cylinders are responsive to like voltage signals to expand or contract in a manner to expand or contract the diameter of the flexure tube to produce the desired tilt-free movement of one plate with respect to the other. The flexure tubes, although small, are very strong due to the cylindrical geometry and yet, are responsive to relatively low signal levels for producing the requisite expansion and contraction.

  Recently Added Patents
TPO compositions, articles, and methods of making the same
Method for operation of multi-layer-multi-turn high efficiency inductors
Device in a system operating with CAN-protocol and in a control and/or supervision system
Methods and systems for temporarily sharing position data between mobile-device users
Semiconductor device and manufacturing method thereof
XDSL system and signal transmission method, sending device, and receiving device of xDSL system
Measuring device and measuring method that use pulsed electromagnetic wave
  Randomly Featured Patents
Color composition and inkjet recording method
Switched reluctance motor providing rotor position detection at high speeds without a separate rotor shaft position sensor
Superconducting cable line
Method of wet etching aluminum oxide to minimize undercutting
Removable multiple panel assembly with blood supply and fluid tubing for hemofiltration apparatus
Module for generating circuits for decoding convolutional codes, related method and circuit
Video recording control system
Method and apparatus for formatting information within a directory tree structure into an encyclopedia-like entry
Sampling probe flow sensor
High-speed starvation-free arbiter system, rotating-priority arbiter, and two stage arbitration method