Patents Assigned to Welz Industrieprodukte GmbH
  • Patent number: 6814371
    Abstract: A cold gas generator for an airbag system has a storage device having an interior filled with a gas under pressure. The interior is divided into at least two partial chambers. Gas outlet openings closed in a rest state of the cold gas generator are provided, wherein one of the gas outlet openings is correlated with one of the at least two partial chambers, respectively. An opening mechanism is provided for actuating, when needed, all of the gas outlet openings together and for filling several airbags with the gas.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: November 9, 2004
    Assignee: Welz Industrieprodukte GmbH
    Inventor: Siegfried Welz
  • Patent number: 6726241
    Abstract: A cold gas generator for an airbag system has a storage device filled with a gas under pressure and provided with a gas outlet opening. A thin-walled sealing disk is provided which, in a rest state, seals pressure-tightly the gas outlet opening. A support device supports the sealing disk against a gas pressure of the gas acting on the sealing disk in a pressure direction. A triggering device acts on the support device. The support device has a pressure plate resting against the sealing disk and a support lever supporting the pressure plate and the sealing disk. The pressure plate and the support lever are configured as separate parts. A bearing supports the support lever such that the support lever receives forces in the pressure direction and is force-free transversely to the pressure direction. The triggering device acts on the support lever so as to cause pivoting about the bearing.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: April 27, 2004
    Assignee: Welz Industrieprodukte GmbH
    Inventor: Siegfried Welz
  • Publication number: 20030137135
    Abstract: A cold gas generator for an airbag system has a storage device filled with a gas under pressure. The storage device has a first end and a second end. A triggering device is provided at the first end for introducing the gas when needed into an airbag. The second end has a convexly curved bottom with a receiving opening arranged approximately centrally in the bottom. A safety valve is inserted into the receiving opening as a closure and attached by welding to the receiving opening.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 24, 2003
    Applicant: Welz Industrieprodukte GmbH
    Inventor: Siegfried Welz
  • Publication number: 20030137134
    Abstract: A cold gas generator for an airbag system has a storage device filled with a gas under pressure and provided with a gas outlet opening. A thin-walled sealing disk is provided which, in a rest state, seals pressure-tightly the gas outlet opening. A support device supports the sealing disk against a gas pressure of the gas acting on the sealing disk in a pressure direction. A triggering device acts on the support device. The support device has a pressure plate resting against the sealing disk and a support lever supporting the pressure plate and the sealing disk. The pressure plate and the support lever are configured as separate parts. A bearing supports the support lever such that the support lever receives forces in the pressure direction and is force-free transversely to the pressure direction. The triggering device acts on the support lever so as to cause pivoting about the bearing.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 24, 2003
    Applicant: Welz Industrieprodukte GmbH
    Inventor: Siegfried Welz
  • Publication number: 20030137136
    Abstract: A cold gas generator for an airbag system has a storage device having an interior filled with a gas under pressure. The interior is divided into at least two partial chambers. Gas outlet openings closed in a rest state of the cold gas generator are provided, wherein one of the gas outlet openings is correlated with one of the at least two partial chambers, respectively. An opening mechanism is provided for actuating, when needed, all of the gas outlet openings together and for filling several airbags with the gas.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 24, 2003
    Applicant: Welz Industrieprodukte GmbH
    Inventor: Siegfried Welz
  • Patent number: 6247725
    Abstract: An opening apparatus for a gas pressure container for inflating an airbag is provided. A housing is fixedly connected to the container and communicates therewith via a discharge opening. The housing includes a principal member that has oppositely disposed open ends. A sealing element for initially sealing the discharge opening is supported by a pressure piece on a counterbearing against opening forces acting on the sealing element via gas pressure in the container. A triggering device is provided that when activated removes support for the sealing element so that the discharge opening is opened by gas pressure in the container for inflating the airbag. The triggering device is in the form of a separate unit that is independently mountable on the housing and is held n one of the end plates. Support of the sealing element is stable independently of the triggering device.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: June 19, 2001
    Assignee: Welz Industrieprodukte GmbH
    Inventor: Tilo Möller