USA As Represented by Secretary of the Navy

US Government As Represented by the Secretary of the Army

Denis A Silvia

Gould Gibbons, Jr

William N Wishard

Herman J Blische

Warren L Gilbertson

David D Abernathy

Isaac E Leonard, Iii

Herbert D Adams

James R Burns

An explosive logic network, including a first explosive path which is crod by second explosive paths such at a detonation propagating along the second path in either direction would cut and open a first end of the first path, and will be propagated at an opposite second end of the first path. The two paths are connected by explosive logic elements such that a detonation propagating from the first end to the second end of the first path will also be propagated in both directions along the second path, and a detonation propagating from the second end to the first end of the first path will cut and open both ends of the second path.

Explosive logic network

An explosive panel, in which detonation is limited to a predetermined area bout any point in the panel at which detonation is initiated, consisting of an array of identical interconnected explosive tile assemblies, each including an explosive tile, a peripheral explosive path, and a plurality of connecting links crossing the peripheral path at a destructive crossover. The outer end of each link is connected to the outer end of an adjacent tile assembly link, and the inner end of the link is connected to the tile through a delay trail. Each link is connected to the peripheral paths by explosive diodes which propagate an incoming detonation to the peripheral path on both sides of the link. When any tile assembly is detonated internally, it will propagate the detonation to all adjacent tile assemblies through its connecting links. When a tile assembly is detonated from an adjacent tile assembly through one of its connecting links, the peripheral path will be detonated and cut all other connecting links of the tile assembly, so that the incoming detonation is limited to only that tile.

Self limiting explosive logic network

A method for manufacturing explosive logic circuit trails using conventio silk screening techniques. Silk screening is used to build up both the explosive trail, as well as the inert substrate. This is accomplished one layer at a time onto a circuit base material. The explosive logic circuit herein is reliable, cost efficient and relatively easy to produce. The invention herein encompasses both the method of manufacturing said explosive logic circuits and the circuits themselves.

Manufacture of explosive circuits using silk screening techniques and

An asynchronous explosive logic safing device which is mappable as a network on a single surface to perform the safe/arming function for an explosive device or warhead. The safing device uses explosive logic AND gates and AND/OR gates in conjunction with a complex logic gate to form an asynchronous network that absorbs the variation in detonator input signals and only propagates the detonation signal to the warhead when a given number of a set of detonators initiate.

Asynchronous explosive logic safing device

An explosive logic resolver network for determining which detonator in a rality of detonators is the first to detonate. The resolver network is interposed between a plurality of detonators and the explosive logic clock of a safe/arming network. Each detonator is provided with a resolver network explosive trail which intersects the resolver network explosive trails of the other detonators to form a plurality of explosive logic switches. The intersections are explosively-time-equidistant from the detonators supplying the detonation signals to a given intersection such that the first detonation signal to propagate through the intersection will close the logic switch and prevent the intersection from propagating another detonation signal. When a detonator creates the first detonation signal, the signal propagates down the resolver network explosive trail, closing the switches and extinguishing at the intersections all detonations that are later in time.

Explosive logic resolver network

An explosive network forming an explosive logic clock for opening a time window during which a set of theoretically identical detonators must fire. The explosive logic clock also examines the first detonation to determine whether or not it is premature before propagating the detonations on to the explosive safing and arming network. The clock is constructed with a plurality of detonators, each detonator having a first branch of a branched outlet trail leading to a detonator time delay trail leading further to a logic switch. The logic switches are interconnected such that the detonation signal from the first detonator to detonate is extinguished in that detonator's logic switch while the remaining logic switches are set by the first detonation signal to allow propagation of their own detonation signals on to the safing/arming network. A second branch of the branched outlet trail simultaneously propagates the detonation signal from the first detonator to a clock time delay which delays the first detonation signal and opens the time window. When the delay imposed by the clock time delay expires, the first detonation signal propagates to a clock logic switch which is interconnected with and set by the detonator logic switches to allow propagation of the first detonation signal. When a second detonation signal is generated, it passes down the detonator time delay and through the detonator logic switch to the clock logic switch. When the second detonation occurs within the time window, the clock logic switch is set by the second detonation signal prior to the arrival of the first detonation signal, which is then allowed to propagate through the clock logic switch. However, when the second detonation occurs outside the time window, the first detonation signal arrives at the unset clock logic switch prior to the arrival of the second detonation signal and is extinguished.

Explosive logic clock

A safe/arm explosive delay path for detonating an explosive device and prnting detonation of the explosive device by extraneous factors present in the internal environment. The delay path comprises a detonator and first explosive trail leading to a delay explosive trail composed of explosive material and reactive material. A second explosive trail is connected to the first explosive trail and parallel to the delay explosive trail. The delay trail and second explosive trail terminate in an explosive junction. The explosive junction or explosive switch is a gated diode with the delay trail leading through the diode in the second explosive trail functioning to gate the diode. The gated diode allows a detonation wave propagating through the delay tail to proceed to the explosive device only when a detonation wave has propagated along the second explosive trail and gated the explosive diode prior to the arrival of the delay detonation wave. The delay trail is composed of a mixture of explosive and reactive material such that the detonation velocity is 1/2 to 1/10 the velocity of ordinary or secondary explosive.

Safe/arm explosive delay path

An explosive safety junction which can meet the high reliability and safety standards of conventional or nuclear weapon safing devices. The safety junction is an explosive logic device having an inlet trail which diverges into one or more tiers of safety trails and converges to form an outlet trail. The safety trails are crossed by a control trail which propagates a control detonation wave which severs the safety trails and prevents an input detonation wave from proceeding from the inlet trail to the outlet trail to detonate the weapon.

Explosive safety junction

The invention relates to destructive crossovers for explosive logic circu, wherein two crossing paths of explosive material are embedded in a substrate in two separate planes. The first path which detonates across the intersection destroys the intersection so that the second path may detonate only to that point. The invention provides for minimal detonation pressure at the intersection, so as to avert the prior art problem of detonations turning the corner. This is accomplished by placing the paths on different planes.

Over-under destructive crossover circuit

An explosive logic safing device for increasing the safety and reliability f a detonation signal from a fuze to an explosive charge. The safing device is provided with an inlet explosive trail which conveys an inlet detonation signal to an outlet explosive trail and the primary explosive charge. A control explosive trail connects the inlet explosive trail and the outlet explosive trail. A failure explosive trail is connected between the control explosive trail and the outlet explosive trail, and is provided with an explosive logic network for conveying the inlet detonation signal from the inlet explosive trail to the outlet explosive trail when a plurality of detonators are properly initiated. The explosive logic network is also provided with a means for registering the successive initiation failures of individual detonators.

Explosive logic safing device

The present invention relates to a warhead in which the full force of the tire weight of explosive can be aimed at the target. The warhead consists of a cylindrical charge which is radially segmented into a plurality of sections hinged together. A target sensing system opens the hinge nearest the target, auxiliary charges unfold the entire warhead with the 'kill' side facing the target and the warhead is then detonated.

Variable geometry warhead

A penetrating member for a projectile comprising a cylindrical mass body e from a high-density material and formed with a hardened front end in the form of a concavely curved scoop with an outstanding spike in its center. One end of a tubular liner abuts the scoop, the liner being made of an easily deformable, material. When the liner hits a target, the liner is forced back along the curve of the scoop and out the center of its tubular form as a high-velocity, target-penetrating jet of material.

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Aberdeen, MD, United States of America

Denis A Silvia