Abstract: A flow control device for use with inflatable confinements or "air bags" of vehicle occupant safety restraint systems is produced by incorporating in the wall of the confinement a fluid permeable portion which has a filamentous surface on one side in which flexible, filamentary projections align themselves in parallel relation as fluid permeates the portion and flows into the bag relatively unrestrictedly, and collapse against the surface as fluid permeates the portion and flows out of the bag relatively more restrictedly to provide rebound protection for the vehicle occupant.

Abstract: A system for sensing or detecting changes in and accumulating data relating to variable quantities or conditions, for example temperature, is disclosed. In one instance, the system sensor is a mercury tube thermometer modified with conductors or contacts embedded in the glass walls of the mercury tube. As the temperature rises, the conductive material rises and performs a switching function with the embedded contacts closing an electrical circuit to which the contacts are connected. The circuit components include plurality of logic gates the inputs of which are connected to the switching contacts in a manner such that their outputs are singularly true in a sequence corresponding to the direction of temperature change. In another instance the sensor is a bimetallic strip, coil or thermal Bourdon tube and an arm or pointer needle mounted on an end of the strip or tube rotates in response to changes in the temperature being sensed.

Abstract: A single port rocket motor igniter nozzle features an adjustable throat or annulus that is formed by a tapered flange and an opening in an igniter body that contains a propellant charge, the position of the flange relative to the opening being adjustable to vary the throat area by a calibrated central shaft. The igniter allows rapid evaluation of propellant grain designs and nozzle throat areas, and as a result, enables the faster development and assembly of a less expensive igniter that is operative to produce at optimum pressure and burning rate, and to effectively propagate, the high temperature gases that are needed for rocket motor propellant ignition.

Abstract: A hollow projectile, to be launched by rocket or fired from a cannon, has a central venturi tube that vents to the external environment near the forward end of the projectile. A pressurized liquid or a solid, combustible matrix that contains a gas or colloid producing material surrounds the venturi tube. This material is released through the venturi tube either by burning the matrix or by rupturing a diaphragm that retains the liquid. A timer, started by an accelerometer in response to the acceleration of the projectile when it is launched, fires an igniter or an explosive fuse to release the gaseous material. Spring loaded valve means, which normally closes the venturi tube, is forced open by gas pressure within the tube to permit discharge of gaseous material into the external environment. This valve means establishes a threshold pressure within the projectile that helps to ignite the matrix and to maintain combustion thereof, and to accelerate the gases being discharged from the projectile.

Abstract: A rocket motor equipped with a movable nozzle is provided with pneumatic pressure system for the operation of the mechanism for moving the nozzle with a gas for the pneumatic supplied from a gas generating propellant separate from the main propellant but located within the motor itself.

Abstract: HMX-containing gun propellants having good thermal stability and mechanical properties are made by mixing HMX with a polymerizable binder, a polyacrylate cross-linking agent and a polymerization catalyst and extruding the mixture into hot water to form cured pellets of propellant. The binder comprises a long chain acrylic monomer of 14 to 24 carbon atoms or a blend of such a long chain monomer and a shorter chain monomer having 6 to 13 carbon atoms. The molar ratio of short chain acrylic monomer to long chain monomer may vary from 0:1 to 3:1.

Abstract: A spring-loaded double-ended check valve assembly is provided for use in the outlet chamber of a dispenser for spraying liquids. The entire assembly, including both ends and the spring, is made in one-piece and is easily moldable from plastic material thus effecting ease of manufacture and assembly into the sprayer, reduced labor and material costs and affording the reliability of a unitary member.

Abstract: A manually operated, hand-held rechargeable liquid dispensing container device having a non-pressurized, either refillable or non-refillable receptacle or reservoir, is disclosed. The device comprises a relatively reciprocating piston and cylinder defining a pressurizable chamber therebetween which can be charged with liquid from the receptacle or reservoir in the container. The piston or cylinder is reciprocated relative to the other by a charging system connected to either one which compresses a resilient means such as a spring while simultaneously drawing liquid into the chamber through a check valve at the entrance of the liquid chamber. When the chamber is charged with liquid, hydraulic pressure is exerted upon the liquid by the now compressed spring. An improved charging system permits the hydraulic pressure application to be delayed until the check valve closes, insuring a full charge in the pressurizing chamber.

Abstract: A manually operated dispensing device for a container holding a quantity of liquid is disclosed. The device has a variable volume pump chamber within a component retaining body. The chamber is defined by a bellows having a closed end or bottom, an open end or top, and corrugated sidewalls characterized by their resilience or elastic memory, and fabricated of any of the various thermoplastics. The bellows is associated with a movable member in the form of a trigger which when actuated compressively stresses the bellows in a direction significantly to reduce its length and the volume of the chamber therewithin. When the compression stress applied by the actuating member or trigger is relieved or removed, the bellows regains its original size and shape and returns the actuating member to its initial position.

Abstract: A manufacture of fluid handling devices having a variety of different surface contours or appearances features a universal fluid handling component retaining body and a shroud for enclosing the universal body, the shroud being a selected one of a variety of shrouds that are fabricated separately from the body and that are characterized by having a common internal surface configuration for engaging in permanently affixed, or removable relation, predetermined, selected exterior portions of the universal body, and further, that are characterized by having different external or surface contours or appearances, the latter being determined by merchandising or consumer preference.

Abstract: A bomb calorimeter is presented in which a cartridge type specimen holder is provided in a fitted bomb casing so that a separate pressure seal is no longer required and the ease of making repeated tests is enhanced. The overall efficiency is also improved because of the central location of the specimen holder.

Abstract: The compositions use oxidizers of HMX, RDX, ammonium nitrate, ammonium picrate and ammonium bitetrazole, and binders of lauryl methacrylate, glycidyl methacrylate, hydroxyethyl methacrylate, vinylene carbonate, polyformaldehyde mixtures were vinylene carbonate, and urethanes of polyethylene glycol and polyphenyl methylene isocyanate.

Abstract: An adjustable nozzle assembly for a hand operated compression sprayer is disclosed. The nozzle is attached to the discharge end of the sprayer and is adjustable from an off position to two discharge positions, such as a spray position and a stream position. The nozzle and sprayer body have cooperating passages which, when brought into register by adjustment of the nozzle, determine the discharge mode (i.e., whether off, spray or stream).

Abstract: A woven synthetic textile, useful as the primary and secondary backing for carpets and as woven cloth to manufacture bags, bale wrap, wall covering, drapes and the like, can be prepared using a heavily fibrillated synthetic ribbon as at least one of the warp and fill members. The textile is characterized by the look and feel of a jute fabric. The fabric may be further treated after weaving to lift the fibril ends above the fabric surface as by brushing and/or needling.

Abstract: The problem of venting the interior of a liquid container utilizing an attached hand-operated, trigger sprayer of the piston or plunger pump type is solved by the provision of a vent passage in the housing of the pump which communicates with the container interior. The piston which is reciprocated in a bore or chamber in the housing has a seal means associated therewith and with the vent passage so that in operation in spraying the container is vented and vacuum development in the container is avoided. In a preferred embodiment said seal means is associated with an entrance or opening to the vent passage so as to provide a seal against liquid leakage from the container when the piston of the pump is in an at rest, non-pumping position and yet permits venting of the container when the piston is in a pumping position.

Abstract: A curable homogeneous gas-generating composition composed essentially of oxalyl dihydrazide coolant combined with: (a) a perchlorate oxidizer selected from the group consisting of ammonium perchlorate, the alkali metal perchlorates, and the alkali earth metal perchlorates, (b) a combustible fuel binder, and (c) propellant adjuvants.A process for the preparation of oxalyl dihydrazide is also disclosed.The gas-generating compositions of the present invention have greatly improved combustion characteristics and exhibit reduced flame temperatures.

Abstract: Elastomeric compositions of discrete parts of curable polymer and a curing agent are converted, by means of a portable, hand held conversion and dispensing apparatus, to a curable mass. The apparatus in a single compact package includes means for (1) receiving the uncured composition or article (2) breaking or fragmenting the composition (3) conveying the fragmented composition to a mixing zone (4) mixing the curable composition and (5) discharging or dispensing the mixed curable material into or on a substrate for in situ curing thereat. Also included is a power source and power transmission means wherein different rotational speeds and directions are obtained between the conveying and mixing means.

Abstract: An improved projectile suitable for use in artillery pieces, though preferably in the higher calibres, is disclosed wherein projectile range upon launching by the gun is considerably extended by means of a propellant rocket motor in combination therewith which motor is characterized by containing in its combustion chamber a flowable propellant charge in the form of a fluidizable, shapeable propellant charge composition which under the high radial acceleration forces imparted to the projectile when fired from a rifled gun barrel, flows and shapes itself into the shape of a hollow cylinder and, when ignited in flight, burns in the manner of a solid propellant grain of the same shape to aid in propelling the projectile a greater distance than is possible with the gun alone.

Abstract: A manually operated, hand-held, rechargeable, liquid spraying device having a non-pressurized, refillable or non-refillable container, is disclosed. The sprayer, a completely contained device, comprises a charging mechanism whereby, upon rotation of one part relative to another part, a movable piston is displaced vacating a charge chamber which, simultaneously, is charged with liquid. Displacement of the piston compresses a responsor or spring which, in turn, causes the piston to exert a hydraulic pressure on the liquid now in the chamber vacated by the piston. Hydraulic pressure on the charge chamber liquid is maintained by the closing of a one-way, elastomeric resilient valve in the entrance in the chamber, which closing occurs when the piston halts in its movement.