Patents by Inventor Burkhard Kain

Burkhard Kain 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: 7506993
    Abstract: A fluorescent bulb retaining spring (6) comprises a one piece, sheet-metal stamped and bent part, entirely and seamlessly comprised of one material. The retaining spring (6) can be produced especially simply from one rectangular piece of sheet metal of substantially uniform thickness, with all functional parts and functional regions created by cutting out spring tongues and bending them outwardly from the sheet. Connecting legs between a bulb retainer portion (9) and a fastening portion (8) form an annular region which is closed in force-locking fashion by a crimped connection (29, 31, 32), which can be produced in automated fashion as part of the stamping and bending operation.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 24, 2009
    Assignee: Vossloh-Schwabe Deutschland GmbH
    Inventors: Burkhard Kain, Hans-Peter Mews
  • Publication number: 20050248937
    Abstract: A fluorescent bulb retaining spring (6) comprises a one piece, sheet-metal stamped and bent part, entirely and seamlessly comprised of one material. The retaining spring (6) can be produced especially simply from one rectangular piece of sheet metal of substantially uniform thickness, with all functional parts and functional regions created by cutting out spring tongues and bending them outwardly from the sheet. Connecting legs between a bulb retainer portion (9) and a fastening portion (8) form an annular region which is closed in force-locking fashion by a crimped connection (29, 31, 32), which can be produced in automated fashion as part of the stamping and bending operation.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 10, 2005
    Inventors: Burkhard Kain, Hans-Peter Mews