Patents by Inventor Sergio Quintanar

Sergio Quintanar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4089490
    Abstract: A film transport mechanism for use in conjunction with a motion picture projector is a free standing unit carrying supply and takeup reels and associated drive motors. The arbors for the supply and takeup reels are generally parallel, and positioned therebetween is a free running sprocket assembly. Film direction rollers cause film from the supply reel to run over one side of the sprocket and additional rollers to direct the return film from a projector over the opposite side of the sprocket whereby the rate of film advance to the projector and return are equal. The transport mechanism transfers a major portion of the torque required to pull film off the supply reel from the projector to the transport thereby significantly reducing the tension on the film going to and from the projector. The entire assembly includes a support structure having a vertical column supporting the motors, arbors and the control electronics, and constitutes a conduit for virtually all electrical interconnections.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: May 16, 1978
    Inventors: Roberto Quintanar, Sergio Quintanar, Alexandro Quintanar, Delbert K. Matthews