Patents by Inventor Bernard Jampy

Bernard Jampy 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).

  • Device for reducing the flexibility of an oleo-pneumatic shock absorber for an undercarriage, and shock absorber and undercarriage including it
    Patent number: 5094407
    Abstract: The invention relates to a device for reducing the damping flexibility of a suspension shock absorber for an undercarriage, in particular the main undercarriage of a helicopter, and a shock absorber and an undercarriage including it.The shock absorber is of the oleo-pneumatic type, and at least one of the incompressible and compressible fluids of the shock absorber is at least partially transferred from an expansion chamber (31) of the latter into a transfer chamber (42) of an accumulator (40) external to the shock absorber (1, 8), and in which the transfer chamber (42) is isolated from a return chamber (43) by a separating piston (41). The connection between the transfer chamber (42) and the corresponding expansion chamber (31) can be cut off by an electro-valve (44), in order to isolate the shock absorber (1, 8) from at least part of the low pressure gas chamber (34) of its expansion chamber (31).Application to the undercarriage equipment, in particular the main undercarriages of ship-borne helicopters.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: March 10, 1992
    Assignee: Aerospatiale Societe Nationale Industrielle S.A.
    Inventors: Bernard Jampy, Claude Bietenhader, Bernard Plissonneau