Patents by Inventor Bo Strandfelt

Bo Strandfelt 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: 6739914
    Abstract: An electric plug having a central pole including an axially movable contact rod having a forward portion, and a rear portion, and a radial flange between said forward portion and said rear portion; a connector member for connection of an electrical lead; and a helical first spring received on said rear portion of said contact rod and interposed between said radial flange and said connector member to urge said contact rod in a forward direction, wherein said connector member is provided with a first bore slidingly receiving a rear free end portion, thereby providing slidable electric contact between said end portion and said connector member.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: May 25, 2004
    Assignee: Sutars AB
    Inventor: Bo Strandfelt
  • Publication number: 20020151223
    Abstract: An electric plug has a pole including a contact rod having a forward end and a rear end, a connector member and spring means interposed between said contact rod and said connector member to urge said contact rod in a forward direction. The contact rod is provided in its rear end with an axial extension and the connector member is provided with a bore slidingly receiving a rear free end of the extension.
    Type: Application
    Filed: March 22, 2002
    Publication date: October 17, 2002
    Inventor: Bo Strandfelt
  • Patent number: D266924
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: November 16, 1982
    Inventor: Bo Strandfelt