Patents by Inventor Rajendra R. Chauhan

Rajendra R. Chauhan 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).

  • Thermoformed container having improved strength to weight ratio in sidewall
    Patent number: 6554154
    Abstract: A container sidewall, such as for a cup or the like, made of a thermoplastic material is disclosed. The container utilizing the present invention is preferably designed having a closed bottom wall at one end, an open top at the opposite end, and the present sidewall extending between the bottom wall and the open top to define a height. The sidewall has a top portion adjacent the open top of the container, a first set of annular ribs disposed adjacent the top portion, a second set of annular ribs, a middle portion disposed between the first set and second set of annular ribs, and a bottom portion disposed adjacent the closed bottom wall of the container. The double band of ribs provide an increase in the strength-to-weight ratio of the container over single band prior art designs.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: April 29, 2003
    Assignee: Solo Cup Company
    Inventors: Rajendra R. Chauhan, John S. Gitschlag