Patents by Inventor Gilbert Lieberman

Gilbert Lieberman 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).

  • Remotely controlled electric switch
    Patent number: 4150264
    Abstract: A remotely controlled pneumatically operated switch consisting of a pneumatic actuator and a mechanical switch assembly and interconnecting pneumatic tubing. The switch assembly has extending contact blades for insertion into an electrical receptacle, and also has slot recesses for receiving the contact blades of an electrical plug. The switch is opened or closed by the action of a rotatable cam on an electrically conductive spring arm. The assembly provides for convenience in switching and also provides a safety factor to the user.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: April 17, 1979
    Assignee: Gilbert Products Incorporated
    Inventor: Gilbert Lieberman