Slotted nut type releasing device for a microsatellite, with full mechanical and pyrotechnical redundancy
AssigneeAerospatiale Societe Nationale Industrielle
InventorJean-Pierre Aubret
Life of this patent
Estimating the term…
Abstract
An inner piston (10) is housed inside a petalled pin (9) and a releasing piston (13) in the form of a sleeve placed outside the said petalled pin form the sliding pieces that maintain the connection between a satellite base and a rocket platform, via a slotted nut (6) and connecting pieces (5). A pyrotechnical initiator (27) is provided in a shock absorber (25) at the base of the releasing device, and a detonating line (29) is placed above the base of the releasing piston.
Claims12
A slotted nut releasing device for a microsatellite, with full mechanical and pyrotechnical redundancy, wherein a head of a slotted nut ensures connection between a satellite base and a rocket platform, this connection being maintained by sliding pieces capable of being displaced and of thus releasing the connection upon implementation of a releasing energy provided by a pyrotechnical initiator, wherein the sliding pieces are formed by an inner piston housed inside a petalled pin, and by a releasing piston (13) in the form of a sleeve, placed outside the said petalled pin, in that the petalled pin is connected by a thread to slotted nut and in that a body of the releasing device is provided with two generators of releasing energy, each acting on one or the other of the sliding pieces, to detach the slotted nut and its connecting pieces at the base of the satellite.
Dependencies are inferred from the claim text.