Pyrolytic graphite nose tip for hypervelocity conical reentry vehicles

Claim 2

The most forward portion of the nose cone tip as set forth in claim 2, wherein said means for maintaining all flat plates, of said plurality of flat plates, under pressure, along the length of said boltlike member and in the direction of the forwardly disposed end of said boltlike member includes: a. the rearwardly disposed end of said boltlike member, with said end having a shank configuration and being threaded; b. the aft portion of the nose cone tip, having a cone frustum configuration with the tapered end forward, with said aft portion being solid and having a centrally located longitudinal cavity running from the tapered end to an aft cavity, with the cavities forming at their juncture a surface essentially parallel to the aft surface of the most rearwardly disposed of the said plurality of aligned flat plates; c. a belleville type spring positioned over the threaded shank of the rearwardly disposed end of said boltlike member, with said spring resting on the surface formed at the juncture of the longitudinal cavity and aft cavity of the said aft portion of the nose cone tip; d. a washer of a pyrolytic graphite positioned over the threaded shank of the rearwardly disposed end of said boltlike member, with said washer abutting on, and located atop of, said belleville type spring; e. and, a nut of ''''Z'''' series grade pyrolytic graphite threaded to mate with the threads on the threaded shank of the rearwardly disposed end of said boltlike member with said nut screwed onto the threaded shank of the rearwardly disposed end of said boltlike member.

Claim 3

The aft section of the nose cone tip, as set forth in claim 3, having: a. an external surface of pyrolytic graphite; b. a cone frustum shaped ballast of a tungsten alloy, wholly internal of said external surface, with said ballast being positioned with the tapered end forward and having therein said centrally located longitudinal cavity and said aft cavity; c. a washer of pyrolytic graphite disposed between the tapered end of said ballast and the most rearwardly disposed flat plate of said plurality of aligned flat plates; d. means for bonding said external surface to said ballast and washer, to form an integral unit; e. and, an open-ended longitudinal circular cylinder of a pyrolytic graphite wholly within, and the same length as, said longitudinal cavity, with the external surface of said cylinder abutting the internal surface of said longitudinal cavity.