| Patent Number |
Title Of Patent |
Date Issued |
| 5188807 |
Apparatus for producing high yield sodium hydrosulfite |
February 23, 1993 |
| An improved high yield apparatus for producing sodium hydrosulfite is disclosed wherein sodium borohydride, sulfur dioxide, sodium hydroxide and sodium bisulfite are reacted. Improved results are obtained according to the invention by a novel feed system that requires the introduction of |
| 5129987 |
Process for bleaching mechanical wood pulp with sodium hydrosulfite and sodium hydroxide in a re |
July 14, 1992 |
| A paper pulp refining and bleaching process wherein the pulp is treated in one or more refiners with a sodium hydrosulfite bleach liquor in the presence of a strong alkali such as NaOH, whereby the bleaching solution has an alkaline pH, preferably 10 to 12, and the pulp is discharged fro |
| 5007236 |
Removable rocket motor igniter |
April 16, 1991 |
| An igniter which is removably insertable in a rocket motor nozzle throat. The igniter includes a sleeve which has a body portion and a plurality of flexible and frangible tab members extending axially from one end of the body portion and spaced circumferentially thereabout and which have |
| 4976794 |
Thermoplastic elastomer-based low vulnerability ammunition gun propellants |
December 11, 1990 |
| LOVA gun propellants are formed from a thermoplastic elastomer and particulates of high-energy oxidizers, e.g., RDX and HMX. |
| 4961808 |
High lamination speed automatic laminator |
October 9, 1990 |
| An automatic laminator for laminating film on a board includes a control unit, input and output roller tables, and a control cabinet. The control unit includes a tacking system, film supply rolls, takeup rolls, lamination rolls, a cutting system and a vacuum system. The control unit |
| 4959110 |
Method for lining the inner surface of a cylindrical or domed cylindrical member with an elastom |
September 25, 1990 |
| A method for lining the inner surface of a generally cylindrical member or domed cylindrical member with an elastomeric material. A let-off head is provided within the member for applying a continuous strip of tacky elastomeric material to the inner surface thereof as it rotates. The hea |
| 4956971 |
Solid propellant canister loaded multiple pulsed or staged rocket motor |
September 18, 1990 |
| A multi-pulse or multi-stage canister loaded solid propellant rocket motor. The canisters are prepared separately and loaded with solid propellant whereby the scrap rate may be reduced after which they are installed in a monolithic case which affords stiffness continuity over the length |
| 4943513 |
Photoimageable composition with reduced cold flow due to salt-bridging by metal ions and dry fil |
July 24, 1990 |
| A photoimageable composition of the negative acting type which includes a binder polymer which contains carboxyl groups is provided with a metal chelate in which the coordination number of the metal is 2 or higher. When the photoimageable composition is coated as a layer on a dry film, t |
| 4943511 |
High sensitivity mid and deep UV resist |
July 24, 1990 |
| Positive photoresist compositions are provided which contain (a) a mixture of mono-, di-, and triesters of 2,3,4-trihydroxybenzophenone and 1,2-naphthoquinone-2-diazo-4-sulfonic acid and (b) a novolak resin selected from resins prepared from a phenolic component having a high p-creso |
| 4943086 |
Gas bag inflator with a two welded joint housing |
July 24, 1990 |
| A vehicle inflatable crash protection bag inflator. The inflator housing comprises two structural components which are welded together by only two welded joints to define an inner or combustion chamber containing gas generant material and an outer or diffuser chamber. An igniter tube is |
| 4941678 |
Lightweight reaction can for passenger inflators |
July 17, 1990 |
| A lightweight can assembly for housing and protecting the gas generator and inflatable bag of a passenger side restraint system includes a tether in the bag flush with the mouth of the can and at its center which retains the spreading forces at the mouth of the can upon bag deployment. T |
| 4937121 |
Process for preparing polymeric materials for application to printed circuits |
June 26, 1990 |
| A process for preparing curable, aqueous strippable, polymeric materials for application, in succession, as masks, to a specific area of each of a plurality of printed circuit boards that is to be protected from the stripping and plating processes associated with gold finger plating, |
| 4933011 |
Antimicrobial solution |
June 12, 1990 |
| An antimicrobial solution of a microbiologically active organo sulfonyl ethylene, isoindole dicarboximide or zinc hydroxypyridine thionate dissolved in an organo phosphorus compound selected from the group consisting of organophosphites and organophosphonates. |
| 4930541 |
Variable orifice diverter valve |
June 5, 1990 |
| The functions of a diverter valve and a variable orifice valve are combined in a single valve including an elongated magnetic member that is pivoted at a first end with a portion of the second end being positioned between opposed restrictors, a coil assembly for producing a magnetic fiel |
| 4927481 |
Method of making continuous reinforcement for flexible bearing laminate |
May 22, 1990 |
| A method for simplifying the fabrication of flexible bearings and reducing the production costs thereof includes preparing reinforcement material for the laminate in the form of a continuous helical arrangement, placing a first end ring in the bottom of a mold with a laminate engaging su |
| 4920028 |
High contrast high thermal stability positive photoresists with mixed cresol and hydroxybenzalde |
April 24, 1990 |
| Novolak resins are provided which are the condensation product of (a) a phenol, phenol derivative, or mixtures thereof, and (b) a mixture of formaldehyde or a formaldehyde precursor and an aromatic aldehyde. When the aromatic aldehyde is a monohydroxy aromatic aldehyde, the novolak r |
| 4919737 |
Thermoplastic elastomer-based low vulnerability ammunition gun propellants |
April 24, 1990 |
| LOVA gun propellants are formed from a thermoplastic elastomer and particulates of high-energy oxidizers, e.g., RDX and HMX. |
| 4915883 |
Method of and apparatus for purging an annular bayonet |
April 10, 1990 |
| An annular bayonet vacuum cup allows a vacuum to be pulled on an annular bayonet and the bayonet to be filled with propellant that is devoid of air. The vacuum cup is transparent/translucent and allows the propellant to be seen as it leaves the exit end of the bayonet. This alerts an |
| 4915754 |
High solids ratio solid rocket motor propelant grains and method of construction thereof |
April 10, 1990 |
| A high acceleration high performance solid rocket motor grain such as for a ballistic defense missile or rocket assisted projectile comprises a propellant material which includes a highly plasticized binder so that the grain has a solids ratio equal to at least about 95 percent. In order |
| 4911795 |
Method of preserving a composite material cased solid propellant rocket motor |
March 27, 1990 |
| A solid propellant rocket motor casing fabricated from strong filament in a matrix of curable polymer known in the trade as a composite motor casing is protected against permeation therethrough over long periods of time of water vapor from the atmosphere by a thin, lightweight, metal foi |
| 4901642 |
Consumable wafer igniter |
February 20, 1990 |
| An igniter for high-performance rocket motors having a full head-end web of propellant in the forward end of the motor includes a shallow cup-shaped fiberglass reinforced urethane container, dual rubber orifice arrangement in a plurality (12) of peripherally spaced exhaust ports, a shear |
| 4895877 |
Microbiocidal compositions comprising an aryl alkanol and a microbiocidal compound dissolved the |
January 23, 1990 |
| Provided are microbiocidal solutions comprising an aryl alkanol solvent, a microbiocidal compound dissolved therein and a polymer processing aid. The solutions may be used to impart microbiocidal properties to polymer compositions. |
| 4894314 |
Photoinitiator composition containing bis ketocoumarin dialkylamino benzoate, camphorquinone and |
January 16, 1990 |
| Photoinitiator compositions are disclosed which contain 3,3'-carbonyl bis(7-diethylaminocoumarin); an alkyl ester of a p-dialkylamino benzoic acid; and either camphorquinone or a 2,4,5-triphenylimidazolyl dimer. Photoinitiators are also provided which contain 3,3'-carbonyl bis(7-diet |
| 4891391 |
Compositions containing antimicrobial agents in combination with stabilizers |
January 2, 1990 |
| Composition of an antimicrobial agent and an antioxidant having improved antimicrobial activity compared to the antimicrobial agent alone. The preferred environment of the invention is a composition of a thermoplastic resin, an antioxidant, and an antimicrobial agent, the latter two bein |
| 4890860 |
Wafer grain gas generator |
January 2, 1990 |
| A gas generator for automobile gas bags and the like includes a grain wherein a plurality of wafers of combustible gas generating material is arranged in a side by side array and a plurality of meshed cushion members is disposed in alternating relation between the wafers and compressed |
| 4889790 |
Method of forming a conformable mask on a printed circuit board |
December 26, 1989 |
| A dry film for forming a solder mask includes a cover sheet, a photoimageable composition layer which is curable to form a solder mask and a top coat interposed between the cover sheet and the photoimageable composition layer which is selectively adherent to the photoimageable compos |
| 4889571 |
High-energy compositions having castable thermoplastic binders |
December 26, 1989 |
| A propellant formulation includes energetic particulate solids dispersed in a binder system of high molecular weight 1,2 syndiotactic butadiene and a plasticizer. The propellant is prepared by mixing above the melting temperature of the butadiene and without the use of solvents. The |
| 4881998 |
Radiation gathering reflector and method of manufacture |
November 21, 1989 |
| A radiation gathering reflector and a method of making a radiation gathering reflector. Resin impregnated fibrous material is wound onto a mandrel which has a pair of opposing surfaces of revolution each of which has a shape corresponding to a predetermined shape of the inner reflector |
| 4878968 |
Oxidizing salts of cubyl amines |
November 7, 1989 |
| A compound having the following formula: ##STR1## wherein R.sup.1 is --N.sup.+ H.sub.3 as found in claim 1 and R.sup.2 is either the same as F.sup.1 or hydrogen. "A" is an oxidizing anion, and X is selected to provide a neutral charge balance for the compound. A method of making |
| 4878690 |
Light weight vehicle restraint bag inflator |
November 7, 1989 |
| A lightweight and inexpensive inflator for a vehicle passenger side restraint bag. The inflator includes a thin igniter housing member and also includes a thin arcuate barrier member which defines a combustion chamber for holding gas generant material for combustion thereof. The infl |
| 4873274 |
In-mold coating powders with two initiators or 1,1-di(t-butylperoxy)-3,3,5-trimethylcyclohexane |
October 10, 1989 |
| Unsaturated polyester resin coating powder composition consisting essentially of at least one unsaturated polyester resin; at least one copolymerizable second resin; and an initiator which comprises 1,1'-di(t-butylperoxy)-3,3,5-trimethylcyclohexane (AE), or which contains a small pro |
| 4873005 |
Extrusion lubricant comprising a hydrocarbon wax, fatty acid salt and an organic mercaptan |
October 10, 1989 |
| Extrusion lubricants for poly (vinyl halide) resins are provided which comprise a mixture of:(a) hydrocarbon wax; and(b) Group II metal or lead salt of a fatty acid in relative amounts sufficient to produce a composition having a viscosity in excess of about 10,000 cps at 125.degree. C.; |
| 4872612 |
Rocket motor extendible nozzle exit cone |
October 10, 1989 |
| A membrane of refractory material having opposed arcuate edges one of which is longer than the other, having opposed straight edges which when welded together in edge-to-edge relationship form the frustum of cone, is deformed by brake or die press means over a portion adjacent the longer |
| 4867393 |
Reduced fin span thrust vector controlled pulsed tactical missile |
September 19, 1989 |
| A tactical pulsed missile with a movable nozzle for thrust vector control and movable aerofins to provide greater maneuverability and flexibility. The first pulse is fired at launch and the later pulses are fired as needed whereby steerage may be provided by thrust vector control during |
| 4866930 |
Membrane seal for application to pulsed rocket motors |
September 19, 1989 |
| A thin membrane of high strength but ductile material is placed over a perforated structural support, thus allowing high pressure on the membrane side of the support to separate one chamber from another. Upon application of pressure through the perforated structural supporting structure, |
| 4864817 |
Membrane seal for application to pulsed rocket motor |
September 12, 1989 |
| A thin membrane of high strength but ductile material is placed over a perforated structural support, thus allowing high pressure on the membrane side of the support to separate one chamber from another. Upon application of pressure through the perforated structural supporting structure, |
| 4863367 |
Continuous reinforcement method for flexible bearing laminate |
September 5, 1989 |
| A method for simplifying the fabrication of flexible bearings and reducing the production costs thereof includes preparing reinforcement material for the laminate in the form of a continuous helical arrangement, placing a first end ring in the bottom of a mold with a laminate engaging su |
| 4859458 |
Hair conditioning polymers containing alkoxylated nitrogen salts of sulfonic acid |
August 22, 1989 |
| Polymers containing alkoxylated nitrogen salts of sulfonic acid are useful for imparting good conditioning properties such as combability, feel, manageability, and curl retention to hair. The polymers may also comprise neutral, anionic, and/or cationic monomers. |
| 4859447 |
Process for the production of sodium hydrosulfite |
August 22, 1989 |
| An improved high yield process and apparatus for producing sodium hydrosulfite by reacting sodium borohydride, sulfur dioxide, sodium hydroxide and sodium bisulfite is disclosed. A continuously recirculating split process stream may be used along with control of pH, temperatures, and |
| 4857362 |
Powder coatable epoxy composition and post-tensioning cable coated therewith |
August 15, 1989 |
| Thermosetting powder coatings are provided which comprise a high epoxide equivalent weight epoxy resin or mixture of epoxy resins, a cure catalyst for the epoxy resin, an acrylic resin and a polyamide resin. These powder coatings are useful for forming corrosion resistant, essentially |
| 4856276 |
Variable mass flow rate solid propellant grain |
August 15, 1989 |
| A solid propellant grain for a gas generator such as a missile canister erection actuator. The grain provides a sustain phase followed by a boost phase which may then be followed by another sustain phase. The aft portion of the grain may have the configuration of an end burner to provide |
| 4855358 |
Powder coating containing an epoxy resin, acrylic resin and polyamide |
August 8, 1989 |
| Thermosetting powder coatings are provided which comprise a high epoxide equivalent weight epoxy resin or mixture of epoxy resins, a cure catalyst for the epoxy resin, an acrylic resin and a polyamide resin. These powder coatings are useful for forming corrosion resistant, essentially |
| 4853051 |
Propellant binder prepared from a PCP/HTPB block polymer |
August 1, 1989 |
| Binders for propellants for the like comprise elastomers which are based on block copolymers in which a pair of poly(caprolactone) blocks flank a central hydroxyl-terminated poly(butadiene) block. The block polymers are cured with isocyanates through the OH termini of the poly(caprolacto |
| 4847399 |
Process for preparing or purifying Group III-A organometallic compounds |
July 11, 1989 |
| Methods for forming or purifying organometallic compounds of elements of Group III-A of the Periodic Table. An intermediate compound is formed which is an adduct of the desired organometallic compound and a Group I-A or Group II-A compound. The adduct is nonvolatile, so volatile impuriti |
| 4846911 |
Preloaded composite electromagnetic barrel and process for fabricating same |
July 11, 1989 |
| A composite electromagnetic barrel is preloaded to minimize rail separation by jacking the rails radially outwardly away from each other and wedging a pair of insulating members between the rails to retain the preload. The jacking force is then released. |
| 4840024 |
Multiple propellant solid rocket motor |
June 20, 1989 |
| An integrated stage rocket motor arrangement provides boost and repeated throttling post boost operations, on demand, and includes an attitude control system. The rocket motor includes a plurality of casings for enclosing an initial boost motor, a post boost motor, and gas generator |
| 4839409 |
Stabilizers for rigid halogen-containing organic polymers comprising a primary heat stabilizer a |
June 13, 1989 |
| Compositions for stabilizing rigid (unplasticized) halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering comprise organotin or non-tin metal salt primary heat stabilizers in combination with esters of polyhydrocarbyl ether glycol |
| 4836961 |
Method of and apparatus for casting solid propellant rocket motors |
June 6, 1989 |
| A method of and apparatus for casting uncured solid propellant in solid propellant rocket motors includes a casting bayonet having annular slits formed in the exit end thereof that improve the fluidity and self-leveling behavior of the uncured propellant. Both of these effects eliminate |
| 4836255 |
Azide gas generant formulations |
June 6, 1989 |
| A gas generant composition especially adapted for inflating automotive airbags in the event of a vehicle collision to protect the occupants of the vehicle from injury. The composition consists essentially of 65-74% alkali metal azide; 10-28% ferric oxide; 6-16% sodium nitrate; 0.1-2% |
| 4834821 |
Process for preparing polymeric materials for application to printed circuits |
May 30, 1989 |
| A process for preparing curable, aqueous strippable, polymeric materials for application, in succession, as masks, to a specific area of each of a plurality of printed circuit boards that is to be protected from the stripping and plating processes associated with gold finger plating, |
