Resources Contact Us Home
Motion picture film advancement apparatus with vibration reduction

Image Number 5 for United States Patent #5593078.

A rotary film advancement apparatus for use in a motion picture camera or projector which uses film having pairs of evenly spaced perforations located near the edges of the film having a steering channel which defines a closed loop path having a pre-selected contour. A rotor is mounted on the stator and rotates at a selected angular velocity in a given direction of rotation about a rotor axis which extends through the interior of the closed loop contour. At least one claw is pivotally mounted to the rotor about a pivot axis which is radially spaced from the rotor axis and has a claw tip dimensioned to engage a film perforation. The claw tip rotates with the rotor at a claw tip rotational speed. A steering pin spaced from the claw tip and the pivot axis follows the path of the steering channel thereby pivoting the claw tip both forwardly and backwardly, and inwardly and outwardly.

  Recently Added Patents
Multiplanar image displays and media formatted to provide 3D imagery without 3D glasses
Microcapsules, their use and processes for their manufacture
Systems and methods for classifying electronic information using advanced active learning techniques
Power device and method of packaging same
Switching apparatus and controlling method thereof
Rotating device
Carbon nanotube fiber spun from wetted ribbon
  Randomly Featured Patents
Scanning exposure method and apparatus, and device manufacturing method using the same
Anti-copying video signal processing
Sealing closure for extrusion blow molded containers
Snap-fit design of an airborne missile systems seeker/detector section using engineering plastics
Wire clamp system for an electrical connector
Optical module mounting unit and optical module
Low pressure drop filter
Elastic connecting bar for a system for active control of vibrations
Method and apparatus for controlling injection compression molding