Patents by Inventor Robert I. Rentz

Robert I. Rentz 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).

  • Method and device for simultaneously propelling and forming impressions with a flowable material
    Patent number: 4569815
    Abstract: A device for simultaneously propelling and forming images in a means for receiving with a flowable material consisting of a support structure, a lever, a piston, a means of pivoting the lever about the piston, a storage area for flowable material, a receiving member for receiving flowable material, a means for guiding the receiving member and a means of transferring the flowable material from the storage area to the receiving member. The toy device is used primarily by children to form various images in or on strips of flowable material like Play-Doh.RTM.. A plurality of receiving members are operatable with the toy device and include thin square and rectangular members, rotary disc members, and circular members for both a strip embossing and an animating device. The toy device is capable of multiple modifications for use with the various receiving members.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: February 11, 1986
    Inventors: Robert I. Rentz, Edward J. Rentz
  • Method of molding a multi-colored disc
    Patent number: 4014972
    Abstract: A method of molding a thin multi-colored disc by injecting, simultaneously or successively, differently colored molding materials between closely-spaced plates. The method can be practiced in a toy to entertain children or for arts and crafts or other purposes.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: March 29, 1977
    Inventor: Robert I. Rentz