Patents by Inventor John Court Levy

John Court Levy 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).

  • Escalator for negotiating curves
    Patent number: 6899216
    Abstract: An escalator has steps shaped (1) to negotiate curves. The steps are suitably linked (4)(5)(6), guided (3)(10)(11), contained and powered so that the escalator can rise, fall, follow a horizontal path, be straight or curved in any predetermined sequence within the design parameters. The steps remain usable in both the flow and return paths. Shields are fitted to guard against entrapment of shoes or other apparel between the moving and stationary parts. For boarding or alighting safely, straight horizontal lengths may be included with appropriate means for passengers crossing from or to a stationary floor.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: May 31, 2005
    Assignee: Levytator Limited
    Inventor: John Court Levy
  • Escalator for negotiating curves
    Publication number: 20040050654
    Abstract: An escalator has steps shaped (1) to negotiate curves. The steps are suitably linked (4)(5)(6), guided (3)(10) (11), contained and powered so that the escalator can rise, fall, follow a horizontal path, be straight or curved in any predetermined sequence within the design parameters. The steps remain usable in both the flow and return paths. Shields are fitted to guard against entrapment of shoes or other apparel between the moving and stationary parts. For boarding or alighting safely, straight horizontal lengths may be included with appropriate means for passengers crossing from or to a stationary floor.
    Type: Application
    Filed: June 2, 2003
    Publication date: March 18, 2004
    Inventor: John Court Levy