Patents Assigned to Dragerwerik Aktiengesellschaft
  • Breathing valve
    Patent number: 5704347
    Abstract: A breathing valve with a valve disk lying on a valve crater and with a valve spring, which is in contact with the valve disk with a first spring portion and with a support surface with a second spring portion. The valve spring is designed as a valve spring that can be spread open against the support surface, and the support surface is designed as a wedge-shaped spreading surface engaging the second spring portion in the area of contact with the second spring portion.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: January 6, 1998
    Assignee: Dragerwerik Aktiengesellschaft
    Inventor: Joachim Schlobohm