Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4043850 | Polymeric-coated HMX crystals for use with propellant materials The adhesion of HMX crystals to the binder of a propellant material is sificantly improved by providing a polymeric polyurethane coating. The HMX crystals are tumbled in benzene to which is added a dilute solution of poly-aryl phenylisocyanate in methyle... | 08/23/1977 |
| 4038113 | Catalyst system for polyurethane propellants A two component catalyst system for use in promoting the cure of polyurethane propellants composed of zinc oxide as the first component and either acetylacetone, linoleic acid, -bromotetradecanoic acid or p-toluensulfonic acid as the second compone... | 07/26/1977 |
| 4038114 | Catalyst system for polyurethane propellant compositions A catalyst system for promoting the room temperature of isocyatic cured polyurethane based propellants. The system is composed of a metal catalyst; a chelating agent or an acid as a suppressor component; and zinc oxide as a scavenger component. The suppre... | 07/26/1977 |
| 4038115 | Composite modified double-base propellant with filler bonding agent Mechanical properties of composite modified double-base propellant are improved by coating fillers for the propellant with a crosslinked, binder insoluble coating having reactive surface isocyanate groups. The reactive isocyanate groups become chemically ... | 07/26/1977 |
| 4023994 | Solid propellant containing ferrocene plasticizer 1. A solid composite type propellant composition comprising as a base propellant an oxidizer, a metallic fuel and fuel binder and between 0.1 and 10% by weight of a ferrocene plasticizer that is selected from the group consisting of mono- and di-substitut... | 05/17/1977 |
| 4021514 | Method for the production of an inhibitor coating for a solid rocket propellent charge A method of producing an inhibitor coating for a solid propellent charge for protecting against undesired burning-off, the inhibitor coating containing an insulating layer composed of a binder and a filler, a protective- and adhesion layer located between... | 05/03/1977 |
| 4019933 | Pot life extension of isocyanate cured propellants by aziridine compounds The reaction products formed from tri-functional aziridinylphosphine oxides r their derivatives reacted with monofunctional carboxylic acids, the tri-aziridinyl derivatives of triazine, the tri-aziridinyl derivatives of benzenetriacyl, the aziridine compou... | 04/26/1977 |
| 4018636 | Soluble binder for plastic bonded explosives and propellants Explosive compositions utilizing binders which are soluble in water or wh hydrolyze under dilute acidic or basic conditions to yield non-toxic products are disclosed. The use of such binders permits one to readily remove the compositions from obsolete wa... | 04/19/1977 |
| 4012245 | Cast TNT explosive containing polyurethane elastomer which is free from oily exudation and voids and uniformly remeltable A castable explosive containing TNT, which in solidified form is essentia free from oil exudation and voids and can be remelted and reused without loss of homogeneity and explosive properties, is produced by incorporating in the molten TNT explosive a po... | 03/15/1977 |
| 4011114 | Cross-linked nitrocellulose propellant formulation 1. A propellant formulation comprising the following ingredients: Nitrocellulose Prepolymer of polyglycoladipate and 2,4-tolylene diisocyanate Nitroglycerin Cyclotetramethylenetetranitramine Aluminum 2-Nitrodiphenylamine. 6. A propellant composition consisting essential... | 03/08/1977 |
| 4002514 | Nitrocellulose propellant composition A solid double base propellant comprising from about 5 to about 60 per cent of a specific nitramine oxidizer, from about 5 to about 60 per cent of triaminoguanidinium azide, triaminoguanidinium hydrazinium diazide or mixtures thereof, and from about 35 to... | 01/11/1977 |
| 4000023 | Bonding agents for polyurethane This patent describes a novel solid rocket propellant comprising a polyurethane binder, a solid ammonium perchlorate oxidizing agent, and an effective bond improving amount of a bonding agent having the general formula: wherein n is an integer and can ass... | 12/28/1976 |
| 4000024 | Burning rate modifiers for solid propellants A solid propellant formulation which utilizes the addition of low levels of transition metal fluorides, such as cupric fluoride and ferric fluoride, as a modifying agent to increase the propellant burning rate while simultaneously decreasing its pressure ... | 12/28/1976 |
| 3986907 | Illuminating flare composition containing tetranitrocarbazole The burning rate of an illuminant composition adapted to be used in an illuminating flare and comprising magnesium granules, an inorganic oxidizer and an organic polymeric binder is increased by incorporating therein 0.1 to 5% by weight of tetranitrocarba... | 10/19/1976 |
| 3986906 | Ultrahigh burning rate propellants containing an organic perchlorate oxidizer A solid propellant composition that employs methyltricarboranylmethyl perorate as a replacement for some of the ammonium perchlorate and for all of the carboranyl plasticizer achieves both improved burning rate and improved mechanical properties. In addi... | 10/19/1976 |
| 3983818 | Incendiary tracer projectile Incendiary or flame projectile for use with conventional igniter-tracer sems and capable of being propelled over distances up to about 600 yards to ignite hard-to-ignite combustible materials such as wood or canvas, the projectile being operable and effi... | 10/05/1976 |
| 3976522 | Nitroplasticized amine perchlorate flexible explosives A sheet explosive employing a fine particle size filler in which a portion hereof is replaced by a plasticizer diluent providing castability at moderate temperatures while maintaining high rates of detonation. The material is crosslinked under mild conditi... | 08/24/1976 |
| 3974004 | Extension of pot life of HTPB composite propellants by phosphine oxides Trioctylphosphine oxide and tributylphosphine oxide are representative of e phosphine oxide compounds which are utilized in isocyanate curable composite propellant compositions to extend usable pot life required for mixing and processing of the specified ... | 08/10/1976 |
| 3969166 | Anti-erosive, solid rocket propellant compositions A means for reducing or eliminating the erosive burning which takes place ring the burning phase of solid propelled rocket motors which have a large length-to-diameter ratio and/or slow-burning propellants is disclosed. The means comprises incorporating i... | 07/13/1976 |
| 3960946 | Process for the manufacture of oxalyl dihydrazide and the use of same as a coolant in gas generating compositions 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 m... | 06/01/1976 |
| 3956890 | Solid propellant binder and propellant 1. A solid polyurethane propellant binder composition which comprises a polyurethane composition comprising the reaction product of nitrocellulose plasticized with a plasticizer selected from the group consisting of nitroglycerin and triethyleneglycol din... | 05/18/1976 |
| 3954528 | Solid gas generating and gun propellant composition containing triaminoguanidine nitrate and synthetic polymer binder Solid gas generating and gun propellant compositions employing triaminogudine nitrate as a propellant ingredient in admixture with an oxidant and a suitable compatible binder material.... | 05/04/1976 |
| 3953260 | Gossypol, an abundant, low-cost iron deactivator, pot-life extender, and processing aid for HTPB propellants In a method wherein propellant ingredients including a hydroxy terminated nder, an isocyanate curative therefor and transition metal compounds or traces thereof are mixed, worked into a suitable container and allowed to cure, gossypol is used to prolong t... | 04/27/1976 |
| 3951704 | Double-base propellants with combustion modifier Double-based propellant combustion catalysts such as lead stannatetolylene iisocyanate(reduced) are extremely effective in lowering the temperature dependency of burning rate with pressure of smokeless propellants irrespective of their crossed or uncrossed... | 04/20/1976 |
| 3932353 | Stabilizers for functionally terminated butadiene polymers This patent describes a novel composition comprising the polymer of a butadiene polymer or other olefinic polymer containing functional groups and complementary reactive cross-linking agent such as polyisocyanate, aziridine or epoxide, and a stabilizer mi... | 01/13/1976 |
| 3932240 | Burning rate modifying binder for propellant and method Solid rocket propellants which utilize hydroxy terminated polybutadiene as he binder and a reactive burn-rate catalyst selected from 4, 4-diferrocenyl-1-pentanol and 3, 3-diferrocenylbutyl isocyanate are disclosed. The burn-rate catalysts are chemically bo... | 01/13/1976 |
