Patents by Inventor Leonard Soloman

Leonard Soloman 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).

  • Security attachment for electrical plug
    Patent number: 4579410
    Abstract: A security attachment for an electrical plug is effective to prevent unauthorized use but to readily permit authorized use. It comprises a pair of adapter elements which are mutually plugged together between the electrical plug and a wall receptacle. One adapter is plugged together with the electrical plug and the two are connected together such that they cannot become unplugged if an attempt is made to unplug them. When unauthorized use is to be prevented, the other adapter is removed to expose prongs of the first adapter which prevent the first adapter from being plugged into the wall receptacle.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: April 1, 1986
    Inventor: Leonard Soloman
  • Security attachment for electrical plug
    Patent number: 4494809
    Abstract: A security attachment for an electrical plug is effective to prevent unauthorized use but to readily permit authorized use. It comprises a pair of adapter elements which are mutually plugged together between the electrical plug and a wall receptacle. One adapter is plugged together with the electrical plug and the two are connected together such that they cannot become unplugged if an attempt is made to unplug them. When unauthorized use is to be prevented, the other adapter is removed to expose prongs of the first adapter which prevent the first adapter from being plugged into the wall receptacle.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: January 22, 1985
    Inventor: Leonard Soloman