Patents by Inventor Frank E. Giehl

Frank E. Giehl 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).

  • Article of jewelry and methods
    Patent number: 5157945
    Abstract: A heart shaped piece of jewelry is provided attachable to a chain. The body of the heart shape is in two parts separated along a jagged simulated broken line with guide members allowing the parts to be separated sliding along the guide members to simulate a break. A spring urges the parts to mate and a cam on the end of a member forces the parts to the separated condition by twisting the member followed by further twisting to close and re-mate the heart shape.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: October 27, 1992
    Inventor: Frank E. Giehl
  • Jewelry device with locked chain
    Patent number: 5134862
    Abstract: A piece of jewelry having a body with chain engaging means for releasably engaging at least one end of a chain, and a lock for locking the end of the chain in the chain engaging means and for receiving a separate key to unlock the chain engaging means, to permit removal of the end of the chain.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: August 4, 1992
    Inventor: Frank E. Giehl