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
VGPU: a real time GPU emulator
IR(voltage) drop analysis in integrated circuit timing
Methods, apparatus, and systems for facilitating control communications between disparate devices
Canine iPS cells and method of producing same
Advocate for facilitating verification for the online presence of an entity
Method of enhancing corrosion resistance of hollow vessels
Pharmaceutical powder compositions
  Randomly Featured Patents
Method of producing an air cushion and an apparatus for the same
Noise-canceling frequency-to-digital converters
Method for semiconductor filming
Time-interleaved analog-to-digital converter
Vented flat battery
Sealed movement sensor
Torque sensor unit for regulating axial movement and axial load
Chrysanthemum plant
Benzenesulfonanilide compounds suitable for treating disorders that respond to modulation of the serotonin 5-HT6 receptor
Low power switching for antenna reconfiguration