Patents by Inventor Carl Jewsbury

Carl Jewsbury 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).

  • Apparatus for carrying a load
    Patent number: 7886920
    Abstract: An apparatus for use in carrying a load particularly in theatrical performances comprising a supported guide rail, with a first and second carriage movably mounted on the guide rail, the first carriage being adapted to carry a movable lift line for carrying the load, and a compensator system linking the first and second carriage and being arranged such that on movement of the first carriage or the second carriage, the other carriage moves in the same direction and the second carriage moves a shorter distance than the first carriage. Lifting and lowering of the load may be achieved independently of travel along the rail and a load may be transported at a constant height.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: February 15, 2011
    Inventors: Stephen Colley, Carl Jewsbury
  • APPARATUS FOR CARRYING A LOAD
    Publication number: 20090166308
    Abstract: An apparatus for use in carrying a load particularly in theatrical performances comprising a supported guide rail, with a first and second carriage movably mounted on the guide rail, the first carriage being adapted to carry a movable lift line for carrying the load, and a compensator system linking the first and second carriage and being arranged such that on movement of the first carriage or the second carriage, the other carriage moves in the same direction and the second carriage moves a shorter distance than the first carriage. Lifting and lowering of the load may be achieved independently of travel along the rail and a load may be transported at a constant height.
    Type: Application
    Filed: October 15, 2008
    Publication date: July 2, 2009
    Inventors: Stephen Colley, Carl Jewsbury