A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 7335270 | Gas generating composition and gas generator A stable, low-temperature ignition gas generating composition has a heating starting temperature of 170 to 220° C. The gas generating composition includes ammonium perchlorate, a chlorine scavenger, and microcrystalline carbon powder. The chlorine scavenger is sodi... | 02/26/2008 |
| 7256398 | Security markers for determining composition of a medium A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The c... | 08/14/2007 |
| 7241629 | Detectable labels, methods of manufacture and use Labels, methods of making labels and methods of using labels are disclosed. The labels can be manufactured using fiber drawing techniques or by shutter masking. The labels can be used for detecting the presence of an analyte in a sample and for detecting interaction... | 07/10/2007 |
| 7148066 | Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous ammonia and provide for leak detection in storage vessels. The dye will ... | 12/12/2006 |
| 7094487 | Solid composition, hydrogen generating method, and proton exchange membrane fuel cell The invention relates to a solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, this composition being characterized in that it compr... | 08/22/2006 |
| 7067024 | Reduced sensitivity, melt-pourable TNT replacements This melt-pourable explosive composition shares explosive properties comparable to those of trinitrotoluene and is melt-pourable and castable under conditions comparable to those of trinitrotoluene, but experiences equal or less impact, shock, and thermal sensitivit... | 06/27/2006 |
| 7056401 | Priming mixture for cartridge primers for small firearms A priming mixture comprises aluminium silicate as the sensitizer, advantageously in a percentage higher than 10%, not exceeding 30% and preferably included between 15% and 25%. Combined with said sensitizer, the-mixture may further comprises a potassium compound, pr... | 06/06/2006 |
| 6969433 | Granulated gas charges The invention relates to granulated gas charges and their use. Said granulated gas charges, whose combustion fumes are nitrogen-free and low in carbon monoxide, contain a) between 5 and 50% by weight binders; b) between 0 and 90% by weight oxidizing agents; and/or c... | 11/29/2005 |
| 6964714 | Reduced sensitivity, melt-pourable tritonal replacements This melt-pourable explosive composition shares explosive properties comparable to those of Tritonal and is melt-pourable and castable under conditions comparable to those of Tritonal, but experiences equal or less impact, shock, and thermal sensitivity and avoids t... | 11/15/2005 |
| 6932878 | Explosive compositions A plastic mouldable explosive composition comprises a gelled binder and a particulate explosive filler contained in the binder, wherein the binder comprises a blend of polyethylene wax polymer together with a tackifying resin comprising a polyisobutene polymer. Desi... | 08/23/2005 |
| 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 |
| 6902637 | Process for preparing free-flowing particulate phase stabilized ammonium nitrate A process for preparing free-flowing, phase-stabilized ammonium nitrate comprises the following steps. A solution of ammonium nitrate (12), a surfactant (13), a phase stabilizer (26), and an inert liquid (20) is prepared. The solution is ... | 06/07/2005 |
| 6880326 | High regression rate hybrid rocket propellants and method of selecting This invention comprises a new process for developing high regression rate propellants for application to hybrid rockets and solid fuel ramjets. The process involves the use of a criterion to identify propellants which form an unstable liquid layer on the melting su... | 04/19/2005 |
| 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 |
| 6692655 | Method of making multi-base propellants from pelletized nitrocellulose In this method for making multi-base propellants, pelletized nitrocellulose is coated with an electrostatically insensitive liquid elastomer precursor or non-plasticizer while wetted in a non-solvent diluent, preferably in the absence of plasticizers. The... | 02/17/2004 |
| 6684624 | High regression rate hybrid rocket propellants This invention comprises a new process for developing high regression rate propellants for application to hybrid rockets and solid fuel ramjets. The process involves the use of a criterion to identify propellants which form an unstable liquid layer on the... | 02/03/2004 |
| 6679960 | Energy dense explosives The present invention is directed to EDE (Energy Dense Explosives), wherein particles of a reducing metal and a metal oxide are dispersed throughout a conventional high explosive. When the resulting EDE is detonated, the reducing metal and the metal oxide... | 01/20/2004 |
| 6648998 | Reduced sensitivity melt-cast explosives This melt-cast explosive shares comparable explosive properties to those of COMP B explosives and is melt-pourable and castable under conditions comparable to those of COMP B explosives, but experiences less impact, shock, and thermal sensitivity and avoi... | 11/18/2003 |
| 6641683 | Plasticized, wax-based binder system for melt castable explosives A melt-castable explosive composition not based on TNT consisting essentially of about 10 to 20 weight percent of a matrix material having a melting temperature of about 80° to 100° C., about 1 to 5 weight percent of a plasticizer, up to about 20 weight... | 11/04/2003 |
| 6562159 | Insensitive melt cast explosive compositions containing energetic thermoplastic elastomers An insensitive melt cast explosive composition obtained by dissolving an energetic copolyurethane thermoplastic elastomer ("ETPE") in melted trinitrotoluene ("TNT") is disclosed. The resulting ETPE-TNT solution is easy to mix with other ingredients such a... | 05/13/2003 |
| 6554927 | Method of explosive bonding, composition therefor and product thereof An improved method of explosively bonding a first metal to a second metal with an explosive composition comprising a base explosive in admixture with an inert particulate material, the improvement wherein the diluent comprises an inert material having a m... | 04/29/2003 |
| 6485586 | Lower burning rate, reduced hazard, high temperature incendiary A low burning rate, high temperature incendiary composition having a reactive material of titanium, a second reactive material of boron, an oxidizer of polytetrafluoroethylene in an amount of from about 20 weight percent or greater of the composition and ... | 11/26/2002 |
| 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 |
| 6436210 | Smoke-generating composition based on colophony derivatives A smoke-generating redox composition contains one or more esters of colophony or of hydrogenated colophony with an alcohol. Applications include use in a deterrent device.... | 08/20/2002 |
| 6358339 | Use of 3,3'-diamino-4,4'-azoxyfurazan and 3,3'-diamino-4,4'-azofurazan as insensitive high explosive materials A method of preparing 3,3'-diamino-4,4'-azofurazan is provided together with a composition of matter including a mixture of 3,3'-diamino-4,4'-azofurazan and 1,3,5-triamino-2,4,6-trinitrobenzene.... | 03/19/2002 |
| 6270836 | Gel-coated microcapsules The invention relates to gel-coated microcapsules which have improved mechanical stress- and flame-resistance. A method for making the gel coated microcapsules is also provided. Phase change materials can be included in the microcapsules to provide therma... | 08/07/2001 |
| 6230624 | Igniter having a hot melt ignition droplet An electrically actuatable igniter (24) comprises a body (60), a pair of electrodes (40) and (42) associated with the body (60), a heating element (44) electrically connected between the electrodes (40) and (42), and an ignition droplet (46) covering and ... | 05/15/2001 |
| 6231701 | Vehicle occupant protection device and solid solution gas generating composition therefor An apparatus (12) for inflating an inflatable vehicle occupant protection device (20) comprises a gas generating material (16) which when ignited produces gas to inflate the inflatable vehicle occupant protection device (20). The gas generating material (... | 05/15/2001 |
| 5949016 | Energetic melt cast explosives A melt cast explosive containing bis(2,2-dinitropropyl)fumarate or 2,2-diropropyl-4,4-dinitropentanoate and a metal fuel such as aluminum, magnesium, boron, hafnium, zirconium or alloys or mixtures thereof. An inert thermoplastic elastomer diluent may be... | 09/07/1999 |
| 5910638 | High density tungsten-loaded castable explosive A castable explosive composition consisting essentially of about 50 to 90 weight percent tungsten powder, about 3 to 40 weight percent of a high energy explosive, about 3 to 16 weight percent of an energetic binder, and about 2 to 10 weight percent alumin... | 06/08/1999 |
| 5854442 | Gas generator compositions A composition for generating a non-toxic, non-flammable, odorless gas is disclosed wherein the propellant of said composition is a mixture of about 30% by weight to about 45% by weight KClO4 with about 55% by weight to 706 by weight of guanidin... | 12/29/1998 |
| 5831207 | Autoignition composition for an airbag inflator An autoigniting composition comprising lead thiocyanate Pb(SCN)2 as the fuel, a chlorate as the oxidizer and optionally, a binder and/or a flow agent/thickener are disclosed for use in a vehicle occupant restraint system. The autoignition compo... | 11/03/1998 |
| 5831208 | Lead-free centerfire primer with DDNP and barium nitrate oxidizer A lead-free centerfire primer which, when fired, is devoid of serious toxic effects, and is characterized by the use of 5-20%, by weight, of barium nitrate as its oxidizer, in combination with 24-40% by weight of a primary explosive, 4-10% by weight of a ... | 11/03/1998 |
| 5811724 | Infrared tracer for ammunition A pyrotechnic composition that emits essentially only infrared radiation upon combustion contains at least one peroxide component, an oxidizer that is more energetic than the peroxide component, a coolant, a binder and silicon. In one embodiment, the pero... | 09/22/1998 |
| 5717158 | High energy melt cast explosives A high energy propellant comprising 1,3,3-Trinitroazetidine or TNAZ, admi with up to about five percent of cellulose acetate butyrate or CAB by adding the CAB at a temperature slightly above the melting point of the TNAZ. A preferred amount of CAB is fro... | 02/10/1998 |
| 5716557 | Method of making high energy explosives and propellants A method of formulating high energy explosives and propellants, including e steps of melting the explosive at a temperature just above its melting temperature, admixing and dissolving or plasticizing a binder, and extruding or casting the resultant soluti... | 02/10/1998 |
| 5682014 | Bitetrazoleamine gas generant compositions A solid composition for generating a nitrogen containing gas is provided. The composition includes an oxidizer and a non-azide fuel selected from a bitetrazoleamine or a derivative or a salt or complex thereof and mixtures thereof. The preferred bitetrazo... | 10/28/1997 |
| 5589660 | Enhanced performance blasting agent An improved blasting composition comprising from about 13 to 15 weight percent unrefined petroleum wax, from about 15 to 20 weight percent aluminum powder, from about 10 to 52 weight percent sodium perchlorate and from about 10 to 52 weight percent ammoni... | 12/31/1996 |
| 5538567 | Gas generating propellant There is provided a gas generating propellant mix consisting essentially of guanidine nitrate, an oxidizer selected from the group consisting of potassium perchlorate and ammonium perchlorate, a flow enhancer and a binder. When ignited, the propellant mix... | 07/23/1996 |
| 5520826 | Flame extinguishing pyrotechnic and explosive composition A flame extinguishing pyrotechnic which flamelessly deflagrates to produce rimarily nitrogen, carbon dioxide, and a fluoroolefin. The flame extinguishing characteristic is achieved by reducing the content of oxygen proximate the deflagration as well as thr... | 05/28/1996 |