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
Tri-material dual-species neutron spectrometer
DMAPN having a low DGN content and a process for preparing DMAPA having a low DGN content
Tungsten barrier and seed for copper filled TSV
Tablet computer
Disk drive to enable defect margining
Adding value to a rendered document
ESD protection circuit and ESD protection device thereof
  Randomly Featured Patents
Retaining and installing a printhead in a printhead docking station
Method of manufacturing display medium, display medium, and display apparatus
Electro hydraulic control with dead zone compensation
Peak factor reduction device and base station
Air check valve assembly for powdered bulk product transport
System and method for prompt modification based on caller hang ups in IVRS
Record carrier and method of labelling an article of value
Method and apparatus for cleaning filters contaminated by polymers and hot-melting resins, in situ, without removing the filtering elements
Biopsy device
Ultrasonic transducer