Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Reexamination Certificate
2005-08-02
2005-08-02
Joyce, William C. (Department: 3682)
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
C074S436000
Reexamination Certificate
active
06923090
ABSTRACT:
According to the invention, a “Geneva” movement mechanism is used which is turned in one direction or the other by an electric motor. The mechanism comprises a “Maltese” cross turning about the axis of rotation of the rotor and supporting an annular piece. The Maltese cross is mechanically coupled to a ball screw lying on said axis of rotation so as to transform the turning notion into motion that includes a linear component, thereby enabling the annular piece to be moved at will towards and away from the rotor so as to make it possible to obtain contact and then blocking in a self-blocking manner against a fixed wall, or on the contrary so as to release the rotor by moving the annular piece in translation in the opposite direction. The invention is applicable to an inertia wheel for controlling the attitude of a satellite.
REFERENCES:
patent: 2363167 (1944-11-01), Daniels
patent: 3446082 (1969-05-01), Turnblade et al.
patent: 4345485 (1982-08-01), Livet et al.
patent: 4566740 (1986-01-01), Beau et al.
patent: 4848169 (1989-07-01), Duncan et al.
patent: 4872357 (1989-10-01), Vaillant De Guelis
patent: 5474263 (1995-12-01), Ford et al.
Blonski Daniel
Seiler René
Joyce William C.
Kondracki Edward J.
Miles & Stockbridge P.C.
Organisation Intergouvernementale Dite Agence Spatiale Europeenn
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