Patents by Inventor Friedhelm Kuhlmann

Friedhelm Kuhlmann 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).

  • Wall bushing plug connector and fastening element for it
    Patent number: 8529291
    Abstract: A wall bushing plug connector which is to be led through and latched in a wall cutout in a housing wall, having an insulating material housing and having two sprung fastening latching arms which are arranged so as to spring outward on mutually opposite sides of the insulting material housing in opposite directions and have at least one latching edge for latching to the housing wall, and the wall bushing plug connector also having mutually opposite clamping contact sections. The sprung fastening latching arms are integrally formed on a support section opposite their free end so as to leave a clearance, with the clearance being intended to accommodate a retaining section of a mating plug connection which can be plugged onto the plug connector for connection to connection contacts.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: September 10, 2013
    Assignee: WAGO Verwaltungsgesellschaft mbH
    Inventor: Friedhelm Kuhlmann
  • WALL BUSHING PLUG CONNECTOR AND FASTENING ELEMENT FOR IT
    Publication number: 20120071023
    Abstract: The invention describes a wall bushing plug connector (1) which is to be led through and latched in a wall cutout (13) in a housing wall (14), having an insulating material housing (5) and having two sprung fastening latching arms (7) which are arranged so as to spring outward on mutually opposite sides of the insulting material housing (5) in opposite directions and have at least one latching edge (8) for latching to the housing wall (14), and also having mutually opposite clamping contact sections (3, 4). The sprung fastening latching arms (7) are integrally formed on a support section (10) opposite their free end so as to leave a clearance (9), with the clearance (9) being intended to accommodate a retaining section of a mating plug connection (15) which can be plugged onto the plug connector (1) for connection to connection contacts.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 22, 2012
    Inventor: Friedhelm Kuhlmann
  • Apparatus for feeding the free end of a microfilm to a takeup reel and for winding the microfilm thereon
    Patent number: 4759511
    Abstract: An automatic film takeup reel to capture the free end of a film and wind the end, must guide the film along a feed passage formed by a housing toward a rotating reel of a soft material. The end of the film is held to the reel by a ball biased by a spring toward the reel and is directed around a cavity until wound. A spring biased arm then shifts the housing axially of the reel to afford continued winding.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: July 26, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Friedhelm Kuhlmann, Heinz G. Mobius