Patents by Inventor Stephan Wiegand

Stephan Wiegand 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: 6550070
    Abstract: A full face mask with a strap, which is fastened to a mask body (15) by clamping action by means of eyes can be removed from the face of the user of the full face mask in a simple manner. Two holding grips are connected to eyes located adjacent to one another. The holding grips are located on a side area (18) of the full face mask (14). A pulling device (19) brings the holding grips (4, 41) into the open position.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 22, 2003
    Assignee: Dräger Safety AG & Co. KGaA
    Inventor: Stephan Wiegand
  • Publication number: 20020095708
    Abstract: A full face mask with a strap, which is fastened to a mask body (15) by clamping action by means of eyes can be removed from the face of the user of the full face mask in a simple manner. Two holding grips are connected to eyes located adjacent to one another. The holding grips are located on a side area (18) of the full face mask (14). A pulling device (19) brings the holding grips (4, 41) into the open position.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 25, 2002
    Inventor: Stephan Wiegand
  • Patent number: 6227198
    Abstract: An underwater breathing apparatus is so improved that it is simple to manufacture and that it provides a decoupling of the breathing gas conducting components and attachment elements. A support vest (2) is provided which includes an inner enclosure (3) and a textile outer enclosure. The inner enclosure (3) extends from the shoulders to the hips of the person carrying the apparatus. The inner enclosure (3) is made of two panels (31, 32) which lie one atop the other. On the periphery, the panels (31, 32) are provided with a first weld seam (33) which connects the panels at the periphery. Further weld seams (34, 36, 37), which connect the panels, are provided within the inner enclosure (3). The weld seams (34, 36, 37) subdivide the inner enclosure (3) into at least an inhalation bag (38), an exhalation bag (39) and a buoyancy bag (40).
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: May 8, 2001
    Assignee: Dräger Sicherheitstechnik GmbH
    Inventors: Stephan Wiegand, Jürgen Tillmann