Patents by Inventor Charles Jelinek Francis

Charles Jelinek Francis 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: 7596890
    Abstract: An apparatus (1,2,3,4) that is to be temporarily attached to the soles of ski boots, whenever the wearer is not attached to skis and desires the ability to comfortably walk or desires protection for the sole of the ski boots. The preferred embodiment generally comprises sandal type soles (4) made of a resilient, elastic springy material which aids in the natural walking action by alternately compressing and releasing, adding energy to the step, thereby aiding walking while wearing ski boots.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: October 6, 2009
    Inventor: Charles Jelinek Francis
  • Patent number: 7290358
    Abstract: An apparatus, in its first, second, and third embodiments, that is intended to be temporarily attached to the soles of ski boots, whenever the wearer is not attached to skis and desires the ability to comfortably walk or desires protection for the soles of the ski boots. The first three embodiments generally comprise of sandal-like soles made of a resilient, elastic, springy material, which aids in the natural walking action by alternately compressing and releasing, adding energy to the step, thereby aiding walking while wearing ski boots. A fourth embodiment is made by altering the ski boots themselves so that the heel (41) and toe (40) sections of the boot are hinged (42) to the underside of the boot, and contain a spring that adds energy to each step taken by the user. The hinged sections are pinned against the boot while skiing.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 6, 2007
    Inventor: Charles Jelinek Francis