Patents by Inventor Martha M. Perez-Espartero

Martha M. Perez-Espartero 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: 8240932
    Abstract: An outer tube has a cylindrical configuration with open upper and lower ends. Linear recess are formed in the outer tube. An inner tube has a cylindrical configuration with open upper and lower ends. A spiral slit is formed in essentially the entire length of the inner tube. The inner tubes is rotatably received within the outer tube. A twist cap has a circular lower face. The lower face is secured to the lower end of the inner tube. The twist cap has a cylindrical side wall receiving the lower end of the outer tube. A stuffer has a circular lower face and a cylindrical side wall. The stuffer is slidably received within the inner tube. Fingers extend radially outwardly from the side wall of the stuffer. Each finger extends through the spiral slit and terminates in a linear recess.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: August 14, 2012
    Inventors: Martha M. Perez-Espartero, Nestor G. Espartero