Appeal No. 2004-2121
Application No. 08/160,835
It would have been obvious to one skilled in the art at
the time the invention was made to employ a general
purpose bomb having a weight not less than 300 pounds
in either the Davis munition or the Kellner et al
munition and to vary the caliber of the penetrator
warheads and the masses of the penetrator warheads and
the munitions in the Davis munition and the Kellner et
al munition to achieve an optimum result, see In re
Aller, 105 USPQ 233 (CCPA 1955) see In re Aller, 105
USPQ 233 (CCPA 1955) and In re Reese, 129 USPQ 402
(CCPA 1961).
Davis discloses an armor penetrating, tandem charge
projectile for penetrating a fairly thick armored vessel, wherein
the projectile includes a hardened penetrator body (8) containing
a heavy charge of explosive material and a shaped charge
explosive head (13) mounted forwardly of the hardened penetrator
body. As noted in column 1 of that patent, the objective therein
is to
provide an improved method and structure by which an
internal blasting charge is caused to be driven in its
entirety through fairly heavy armor to obtain the
maximum blasting effects within the area projected by
the armor. This object is attained in brief by
producing, not only an opening in the armor at the area
of impact but also spaced cuts or gashes radiating from
the opening which weaken the metal for a considerable
distance away from the opening as will allow the metal
segments between the cuts to be bent inwardly when
forced by the pressure of the main portion of the
projectile. Thus, the initial opening is caused to be
greatly enlarged, sufficient to allow the main casing
which carries the full internal blasting charge
completely to enter and pass through the armor.
55
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