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US 2017/0191450 A1Published application
Solid propellant rocket motor
AssigneeAVIO S.p.A.
InventorsPaolo Bellomi, Vincenzo Mancini
Life of this patent
Estimating the term…
Abstract
A solid propellant rocket motor (1) has a tubular casing (3) accommodating a mass (5) of solid propellant material and at least one opening (10) for the space in the casing (3) to communicate with the outside closed by a closing head (11); the closing head (11) being coupled to the casing (3) by means of one or the other of two blocking portions (28) (21A) with different strength both carried by a movement device (21,35) which can be elastically deformed and operated from the outside.
Claims11
1-10. (canceled)
A solid propellant rocket motor, comprising:
- a cylindrical tubular outer casing accommodating a mass of solid propellant material, the cylindrical tubular outer casing having at least one opening for a space in the cylindrical tubular outer casing to communicate with an outside;
- a closing head for closing said at least one opening;
- and
- means for connecting said closing head to a connection portion of said cylindrical tubular casing;
- said means for connecting include:
- an annular abutting surface carried by said cylindrical tubular outer casing;
- a first blocking portion;
- at least a second blocking portion having a lower strength than said first blocking portion;
- wherein said second blocking portion protrudes from said first blocking portion, and said first and second blocking portions form part of a radially elastically deformable, annular open body made in one piece;
- wherein said annular open body include opposite end portions adjacent to each other;
- and
- support and moving means of said first and second blocking portions, wherein said support and moving means include actuator spacing means interposed between said end portions for spacing in a circumferential direction the end portions relative to each other and for elastically deforming said annular open body.
9 more elements
Dependencies are inferred from the claim text.