Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7754036 | Thermobaric explosives and compositions, and articles of manufacture and methods regarding the same A pressable explosive composition is provided. The composition includes at least 40 weight percent of substantially uncoated fuel particles, a nitramine mechanically blended with the substantially uncoated fuel particles, and a binder coating the nitramine. The bind... | 07/13/2010 |
| 7727347 | Thermobaric explosives and compositions, and articles of manufacture and methods regarding the same A pressable explosive composition is provided. The composition includes at least 40 weight percent of substantially uncoated fuel particles, a nitramine mechanically blended with the substantially uncoated fuel particles, and a binder coating the nitramine. The bind... | 06/01/2010 |
| 7393423 | Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications A chemical reaction between molten aluminum and an oxygen carrier such as water to do useful work is disclosed, and in particular two chemical methods to obtain aluminum in its molten state. One is to detonate a HE/Al mixture with surplus Al in stoichiometry, and th... | 07/01/2008 |
| 7134492 | Mapping fracture dimensions Hydraulic fracture dimensions and, optionally, fracture closure pressure and time are determined by adding particulate matter that discharges to create an acoustic signal to the proppant, allowing the particulate matter to discharge, and detecting the acoustic signa... | 11/14/2006 |
| 6997998 | Lead-and barium-free propellant charges The subject of the present invention is lead- and barium-free propellant charges with primary explosives mixed with oxygen-supplying substances, characterized in that the primary explosives are selected from alkali metal and/or alkaline earth metal salts of dinitrob... | 02/14/2006 |
| 6913661 | Ammonium nitrate propellants and methods for preparing the same The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the ... | 07/05/2005 |
| 6786986 | Non-toxic composition for priming mixture for small caliber arms ammunition This disclosure considers the use of specifically-sized Nitrocellulose particles of 75 ml fineness, free of other chemicals, as a flame enhancer in a Diazodinitrophenol primer mixture that is free of heavy metal constituents. ... | 09/07/2004 |
| 6749702 | Low temperature autoignition composition The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The low temperature autoignition co... | 06/15/2004 |
| 6599379 | Low-smoke nitroguanidine and nitrocellulose based pyrotechnic compositions A low-smoke pyrotechnic composition comprising nitrocellulose; nitroguanidine; an oxidizing agent; and, at least one of a flame coloring agent and metal powder, and a method of processing the same is disclosed.... | 07/29/2003 |
| 6599380 | Guanidine-thermite igniter composition for use in gas generators The invention relates to an igniter composition for use in a gas generator for a safety means in vehicles. The igniter composition consists of a gas-generating composition in an amount of 15 to 70 wt-% and of a thermite composition in an amount of 30 to 8... | 07/29/2003 |
| 6592778 | Method for producing propellant compacts The invention relates to a method for producing propellant compacts for use in gas generators for safety devices in motor vehicles by extrusion, comprising the following steps: mixing the constituents of the propellant and stirring the mixture into a past... | 07/15/2003 |
| 6562160 | Airbag propellant The present invention is a propellant used to inflate an airbag in vehicle safety systems comprising from about 70 weight percent to about 82 weight percent Cyclotrimethylenetrinitramine (RDX), from about 10 weight percent to about 15 weight percent of a ... | 05/13/2003 |
| 6544363 | Non-toxic, heavy-metal-free shotshell primer mix A non-toxic heavy-metal-free priming mix and a method of forming same, designed especially for industrial shotshells and other shotshells having abnormally heavy charges of propellant in an effort to qualify for heavy duty assignments such as the need to ... | 04/08/2003 |
| 6478903 | Non-toxic primer mix A non-toxic primer mix including both bismuth sulfide and potassium nitrate as the pyrotechnic portion of the primer is disclosed. In a further embodiment, a non-toxic primer mix comprising zinc sulfide and aluminum nitrate as the pyrotechnic portion of t... | 11/12/2002 |
| 6453816 | Temperature fuse with lower detonation point A temperature fuse for gas-generating mixtures consists of substances or mixtures of substances that have lower detonation points or decomposition points than the gas-generating mixture. In particular, the temperature fuse contains substances or mixtures ... | 09/24/2002 |
| 6302979 | Gas generant composition A gas generant is provided which decreases toxic components, in particular carbon monoxide and nitrogen oxides, in generated gas to a concentration practical as an air bag system for automobile. A nitrogen-containing organic compound such as a compound contain... | 10/16/2001 |
| 6221187 | Method of safely initiating combustion of a gas generant composition using an autoignition composition The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The low temperature auto... | 04/24/2001 |
| 6136224 | Gas generant A gas generant for an air, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. And a molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a r... | 10/24/2000 |
| 6132480 | Gas forming igniter composition for a gas generant An igniter composition for a gas generant and related methods of gas generation are provided in which, in addition to a boron fuel component and an oxidizer component, the igniter composition additionally includes a gas-producing fuel component.... | 10/17/2000 |
| 6103029 | Triazole cross-linked polymers Polyethers containing pendant azide groups are cured without a catalyst by yclo-addition with diacetylenes to form triazole cross-linked, energetic binders having improved mechanical properties and stability. The polyethers typically have three hydroxy-ter... | 08/15/2000 |
| 6073962 | Gas generant The present invention is directed to an airbag system that includes a gas generant, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. A molecular compound comprising (a) a gas gen... | 06/13/2000 |
| 5962808 | Gas generant complex oxidizers Nonazide gas generant compositions, useful for inflating passenger restraint gas inflator bags, comprise a multimetallic coordination complex oxidizer selected from coordination complexes comprised of anionic nitro and nitrito ligands coordinated with a t... | 10/05/1999 |
| 5959242 | Autoignition composition The present invention relates to an autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The autoignition compositions of the in... | 09/28/1999 |
| 5684268 | Lead-free primer mix A lead-free primer mix based on diazodinitrophenol, tetrazene, nitrocellulose, barium nitrate and at least one of PETN, aluminum and antimony sulfide exhibits performance characteristics comparable to lead styphnate compositions.... | 11/04/1997 |
| 5677510 | Gas generating mixture A gas generating mixture comprises a high nitrogen and low carbon fuel from he group nitroguanidine (NIGU), tiraminoguanidine nitrate (TAGN), diguanidinium-5,5'-azotetrazolate (GZT) or 3-nitro-l,2,3-triazol-5-one (NTO), as well as copper diammine dinitrate... | 10/14/1997 |
| 5675119 | Granular ammonium nitrate explosive A granular explosive is obtained by mixing porous prill ammonium nitrate having an average particle size of 0.5 to 3.0 mm with a liquid aromatic dinitro compound and optionally a metal powder. Explosives having high sensitivity and power can be obtained b... | 10/07/1997 |
| 5652408 | Explosive projectile An explosive projectile has a splinter-generating body inside which is placed an explosive and/or incendiary load ignited by a primer. The projectile also contains an intermediate charge placed between the primer and the explosive load. The charge is comp... | 07/29/1997 |
| 5587552 | Infrared illuminating composition Infrared illuminant compositions are disclosed which produce significant quantities of infrared radiation when burned but which produce very little visible light. The infrared illuminant compositions provide specific illumination in the spectral range vis... | 12/24/1996 |
| 5565710 | Process for manufacturing granular igniter There is provided a process for manufacturing a granular igniter, which facilitates control of the igniter preparation, handling of the granule igniter and improvement in manufacturized yield. The present invention also provides a process for manufacturin... | 10/15/1996 |
| 5431756 | Method and composition for melt cast explosives, propellants and pyrotechnics The invention relates to melt cast explosives, propellants or pyrotechnics which contain a nitrated energetic material such as trinitrotoluene, a desensitizer such as wax or petroleum oil and an alkylated polyvinylpyrrolidone emulsifying agent.... | 07/11/1995 |
| 5404813 | Propellant formulation and process The present invention relates to metal filaments for use as fuel additives for rocket propellants, explosives, and other pyrotechnic devices. Preferred filaments are those such as zirconium, niobium and titanium (and alloys thereof) which have very high h... | 04/11/1995 |
| 5388518 | Propellant formulation and process The present invention relates to metal filaments for use as fuel additives for rocket propellants, explosives, and other pyrotechnic devices. Preferred filaments are those such as zirconium, niobium and titanium (and alloys thereof) which have very high h... | 02/14/1995 |
| 5380380 | Ignition compositions for inflator gas generators Autoigniting compositions containing a hydrazine salt of 3-nitro-1,2,4-triazole-5-one for the gas generator of a vehicle occupant restraint system result in rapid autoignition at temperatures from approximately 150° C. (302° F.) to 220° C. (428° ... | 01/10/1995 |
| 5320043 | Low-vulnerability explosive munitions element including a multicomposition explosive charge, and method for obtaining a blast and/or bubble effect The invention relates to a low-vulnerability explosive munitions element comprising a casing containing a multicomposition explosive charge, the innermost layer of which is a composite explosive comprising a filled polyurethane or polyester polymer matrix... | 06/14/1994 |
| 5192379 | Densifying and stabilizing ingredient Lead fluoride acts as a densifying and stabilizing ingredient for a propent.... | 03/09/1993 |
| 5189247 | Low-vulnerability explosive munitions element including a multi-composition explosive charge, and method for obtaining a blast and/or bubble effect The invention relates to a low-vulnerability explosive munitions element comprising a casing containing a multicomposition explosive charge, the innermost layer of which is a composite explosive comprising a filled polyurethane or polyester polymer matrix... | 02/23/1993 |
| 5084118 | Ignition composition for inflator gas generators An autoigniting composition for the gas generator of a vehicle occupant restraint system that is thermally stable at temperatures up to 110° C., will not autoignite at 150° C., but when heated to approximately 177° C. will undergo rapid autoignition.... | 01/28/1992 |
| 5071496 | Low level blasting composition A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferab... | 12/10/1991 |
| 4980000 | Nitrostarch emulsion explosives production process The present invention provides a method for producing a water-in-oil emulsion and the emulsion explosives therefrom containing nitrostarch by nitrating starch with an excess of a nitrating agent, treating the reaction mixture thereof with anhydrous ammoni... | 12/25/1990 |
| 4948438 | Intermolecular complex explosives A melt/cast explosive composition comprising about 20 to 100 wt. % of a binary complex of ammonium nitrate (AN) and methyl nitroguanidine (MeNQ) in a molar ratio of about 0.55:1 to 1.35:1. This binary complex may be used alone or it may be formulated with... | 08/14/1990 |
