Patents by Inventor Mark Francis Jones

Mark Francis Jones 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: 5762857
    Abstract: A method and apparatus is provided to cause deflection or oscillation of a bundle of spun thermoplastic filaments. A pulsing electrostatic charge and optionally an additional constant charge is applied to attenuated filaments prior to deposit of the filaments on a conveyor in the form of a web. Adjacent sections of filaments may be charged with different phases, and multiple pulsed charges may be applied. The pulsed charges cause movement or oscillation of the filaments resulting in better web uniformity.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: June 9, 1998
    Inventors: Jian Weng, Mark Francis Jones, Mark Allen Anderson