Patents by Inventor Jack R. Conrad

Jack R. Conrad 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: 4055620
    Abstract: A flexible mold and process is provided for making pots, and the like, the mold comprising a cylindrical-shaped rubber-like resilient member having an annular-shaped cavity contained therein, and an open top. The construction of the mold is such the pressurized air may be introduced into the cavity to move the outer peripheral portion of the mold radially outwardly to release the part being molded. A nail, or similar article may be inserted into the central part of the mold to protrude through the open top of the mold along the central axis thereof. The nail causes a hole to be formed in the bottom of the article being molded which serves as a water hole when flower pots, for example, are being molded, and which also provides a convenient hole through which the releasing pressurized air may be introduced into the mold cavity.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: October 25, 1977
    Inventor: Jack R. Conrad