Omnidirectional flexible joint for rocket nozzles

Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle – With means controlling amount – shape or direction of...

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23926535, B63H 1110, B64C 1500

Patent

active

H00013811

ABSTRACT:
An improved multiple-layered omnidirectional flexible joint disposed to flexibly connect between a convex spherical ball surface associated with a rocket motor nozzle and a concave spherical cup surface associated with a rocket motor case, the space between curved mounting surfaces being filled by overlapping spherically concentric layers constructed in an alternating manner of relatively rigid and relatively resilient materials interleaved and bonded to one another. The rigid layers are made of glass-fiber-reinforced epoxy-resin composite material, and extend outward beyond the edges of the resilient layers, so as to protrude toward the hot environment within the rocket motor case. The protruding edges of the glass-epoxy composite material layers tend to melt together, and thereafter protect the resilient layers from direct exposure to the intense thermal environment within the rocket motor case.

REFERENCES:
patent: 3390899 (1968-07-01), Herbert et al.
patent: 3519260 (1970-07-01), Irwin
patent: 3726480 (1973-04-01), Miltenberger
patent: 3877646 (1975-04-01), McCullough et al.
patent: 4007245 (1977-02-01), Scola

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