Patents by Inventor Albert Lindberg

Albert Lindberg 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).

  • Plug assembly
    Patent number: 4105273
    Abstract: An electric plug assembly is formed of a plug having a handle part and a contact part projecting from the handle part and a socket adapted to receive, by insertion, the contact part of the plug. The socket has electric contacts arranged to engage the contact part of the plug in the inserted state of the plug. There are further provided longitudinal, electrically insulating spaced ribs forming part of the plug and constituting a cage surrounding the contact part of the plug and electrically insulating, spaced protrusions arranged in a circular array and forming part of the socket. The protrusions are in an interleaving relationship with the ribs in the inserted state of the plug.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: August 8, 1978
    Assignee: Leybold-Heraeus GmbH & Co. KG
    Inventors: Siegfried Henschke, Albert Lindberg