Patents by Inventor David M. Whittingham

David M. Whittingham 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).

  • Aircraft evacuation slide with primary gas relief valve
    Patent number: 7490795
    Abstract: An emergency evacuation slide system includes a control valve having a normally-open vent that closes after a predetermined period of time calculated to vent excess inflation gas produced by the gas generator. In operation, in the event of an aircraft emergency exit door being opened in the “armed” condition, the primary valve member of the control valve is opened allowing inflation gas to flow into the valve chamber. A portion of the gas entering the chamber is vented through the normally-open vent. After a predetermined period of time calculated to be sufficient to vent the excess inflation gas, the normally-open valve is closed to divert 100% of the remaining inflation gas into the evacuation slide.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 17, 2009
    Assignee: Goodrich Corporation
    Inventors: Andrew Clegg, David M. Whittingham, Peter P. Seabase