Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7367631 | Method of and apparatus for breaking rock Apparatus for breaking rock includes a cartridge with a base and a wall which extends from the base, the base and the wall forming an enclosure, a propellant inside the enclosure and means for igniting the propellant, and wherein at least the wall is made from a mal... | 05/06/2008 |
| 7340025 | Plasma antenna generator and method of using same A plasma antenna generator includes a ceramic portion including an ionizable material, an explosive charge adapted to project at least part of the ceramic portion upon detonation at a velocity sufficient to ionize the ionizable material, and a detonator coupled with... | 03/04/2008 |
| 7325495 | Hot gas deployment devices A hot gas deployment device for safely deploying a “hot” tear-gas canister to flush out barricaded law-resisters. The device includes an internal chamber for inserting the tear-gas canister therein, securing means to secure the canister in place during deploymen... | 02/05/2008 |
| 7200977 | Heat-shrinkable multilayer packaging film comprising inner layer comprising a polyester A heat-shrinkable multilayer film comprises (A) a first layer, which is an outer layer, and which comprises polyolefin; (B) a second layer comprising at least one member selected from the group consisting of polyolefin, polystyrene, and polyurethane; (C) a third lay... | 04/10/2007 |
| 6941871 | Faceted expansion relief perforating device The present invention is an improvement in the design of a perforating gun to perforate the casing in oil and gas wells. Perforating guns have a cylindrical body member with explosive charges at specified intervals designed to shoot outwardly through the body member... | 09/13/2005 |
| 6926086 | Method for removing a tool from a well A method of treating a subterranean formation surrounding a wellbore, according to which a tool inserted into the wellbore for performing a function in the wellbore is fabricated of a material that breaks up upon detonation of an explosive mounted on the tool, thus ... | 08/09/2005 |
| 6684791 | Shaped charge detonation system and method Encapsulated shaped charge for efficient initiation of hydrodynamic velocity detonation of explosives column. A water tight capsule with angled sides containing sufficient quantities of explosive and a detonator means where the capsule substantially occup... | 02/03/2004 |
| 6631684 | Rock blasting method using air bladders embedded in loading layers Disclosed herein is a rock blasting method using air bladders embedded in explosives. The rock blasting method includes the step of drilling a plurality of loading holes into a rock to predetermined depths in a predetermined arrangement. Thereafter, the l... | 10/14/2003 |
| 6536349 | Explosive system for casing damage repair An explosive system is disclosed which may be used in repair of damaged casing. In a described embodiment, an explosive system includes a flexible elongated tubular container with a liquid explosive disposed within the container. As an alternative, the li... | 03/25/2003 |
| 6520089 | Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith A method for setting and igniting a charge of explosives for geological investigations, comprising the following steps: a hole (14) is drilled in the ground (12) which is to be investigated; an explosion chamber (22) is hollowed out, whereby said explosio... | 02/18/2003 |
| 6453818 | Method of controlled blasting The invention of the present application provides a method of controlled blasting comprising dispersing an explosive (9) within a blasthole (1) to form a dispersed explosive having a lower average bulk density than said explosive (9) prior to dispersion a... | 09/24/2002 |
| 6397753 | Water-based apparatus to mitigate damage and injuries from a fully or partially confined explosion A water-based apparatus for mitigating the gas pressure loading and associated damage and injuries from a fully or partially confined explosion. The water-based apparatus comprises a water-blanket which rests on each pallet of ordnance to mitigate the gas... | 06/04/2002 |
| 6354222 | Projectile for the destruction of large explosive targets A projectile and method for the destruction of normally explosive targets and includes a projectile shell body containing a pyrogenically activated intermetallic reactive payload in the forward section of the shell and an amount of tracer material aft of ... | 03/12/2002 |
| 6302026 | Explosion-suppressing structure An explosion-suppressing structure comprises an explosion-suppressing barrier, such as a wall of liquid-filled tanks or blocks, and rupturable explosion-suppressing roof members 23 such as hollow rigid bodies containing liquid-filled bags 24 and supportin... | 10/16/2001 |
| 6302027 | Packaged explosive product and packaging process therefor A packaged product has an explosive article packaged in a film. Although the film can comprise any one or more of a wide variety of polymers, the film is non-crosslaminated and is sealed to itself, and has a total free shrink at 185° F. of less than abou... | 10/16/2001 |
| 6283032 | Projectile with controlled decomposition and integrated charge in the area of the effective mass A smoke-generating projectile has a decomposable effective mass, the mass including a quick-burning deception component for generating spontaneous smoke, and a slow-burning concealment component for generating persistent smoke. The projectile includes an ... | 09/04/2001 |
| 6220370 | Circulating gun system A tubing conveyed perforating apparatus is shown which includes a tubular firing section which carries a plurality of explosive charges. The explosive charges are initially aligned with regions of reduced wall area provided in a tubular firing section whi... | 04/24/2001 |
| 5798477 | Explosive cartridge assembly for presplitting rock The present invention includes a small diameter explosive cartridge and a two-stage large diameter explosive cartridge apparatus for presplitting rock can be axially detonated by detonating cord through a central detonation passageway in the explosive car... | 08/25/1998 |
| 5495807 | Gas-generating module for an airbag utilized in motor vehicles A gas-generating module for an airbag utilized in motor vehicles, which includes a gas-generating composition and an igniting composition arranged within a container. The gas-generating composition is presently in the shape of a foil-like layer or coating... | 03/05/1996 |
| 5435250 | Explosive packaging system A packaging system for explosives having a thin walled water resistent tube containing a low-sensitivity explosive therein. A first cap is fitted about one end of the tube and has a re-entrant portion that projects into the tube about which the explosive ... | 07/25/1995 |
| 5331896 | Process for visualization of a detonation wave Steps of a process for visualization of a detonation wave involve examini measuring, and confirming a fuel-air explosion by using a ground-based fuel bottle oriented horizontally whereby the explosive dissemination creates a fuel-air cloud with its diame... | 07/26/1994 |
| 5259316 | Method and apparatus for wet/dry, small bore hole explosive device A wet/dry explosive assembly for use with small diameter bore holes is disclosed. The device utilizes a small diameter watertight inner containment vessel to house a predetermined amount of blasting agent, such as ammonium nitrate with fuel oil (AN/FO). A... | 11/09/1993 |
| 5231245 | Explosives The invention relates to a new method of using explosives. In the past it was the practice to use the shock wave front or the pressure pulse, or both, generated by a detonated explosive mass to directly affect a target or to deform and drive a solids element a... | 07/27/1993 |
| 5212343 | Water reactive method with delayed explosion Devices and methods are disclosed for contacting a hot reaction mass with water to initiate an explosive reaction. The reaction mass comprises a ceramic or intermetallic material that is produced by exothermically reacting a mixture of reactive elements. ... | 05/18/1993 |
| 5192819 | Bulk explosive charger There is disclosed, according to the present invention, an apparatus and method for loading explosives exhibiting little water resistance into water filled blast holes without contamination of the explosives by water. A pressure charger vessel, capable of... | 03/09/1993 |
| 5092245 | Explosive stemming device An explosive stemming device for dispensing granular material into a boree containing an explosive charge therein is disclosed as including a cylindrical member having a flexible sleeve-like liner adapted to conform to the interior thereof when filled wi... | 03/03/1992 |
| 5024159 | Plane-wave forming sheet explosive An explosive sheet which is formed by a layer of explosive material, a layer of foil, and an inert space forming material. These three layers are repeated to number, n, times to form a composite plane-wave forming explosive sheet.... | 06/18/1991 |
| 5024160 | Rapid burning propellant charge for automobile air bag inflators, rocket motors, and igniters therefor A rapid burning propellant charge for applications including igniters, launch eject motor, and gas generators for automobile air bags. The propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of s... | 06/18/1991 |
| 4976201 | Non-lethal distraction device A distraction device is comprised of a hollow container that is divided into a first chamber and a second chamber. An explosive charge capable of producing a loud sound and a brilliant flash of light fills the second chamber. A standard M201 hand grenade ... | 12/11/1990 |
| 4920852 | Portable, self-contained explosives system The present invention relates to a system for forming an explosive and more particularly to a system that is portable, self-contained and is capable of mixing essentially non-explosive ingredients from separate containers or separate compartments within a... | 05/01/1990 |
| 4873928 | Nuclear-sized explosions without radiation A method for producing a high yield explosion without radioactive fallout comprising filling an expendible structure with an explosive mixture of a combustible gas (e.g. methane) and an oxidizer gas (e.g. oxygen) and then detonating said mixture.... | 10/17/1989 |
| 4813358 | Inflatable wand for loading a mining borehole An inflatable wand for positioning within an upward oriented, mining borehole and near a lower collar opening thereof wherein the wand provides a conduit for introducing and retaining liquid explosive materials within the borehole. The wand includes a fle... | 03/21/1989 |
| 4787316 | Expandable, self-tamping explosive bag A package for blasting agents including an outer bag of a first diameter formed of a multilayer rupturable paper material and an inner waterproof bag of a second diameter larger than the diameter of the outer bag such that, upon being dropped into a blast... | 11/29/1988 |
| 4757863 | Well cleaning method and apparatus An improved, simplified and less expensive apparatus and method for cleaning wells embodies an elongated tube of combustible material, sealed at its ends, that is ignited at one end to generate a pressure wave that travels along the length of the tube. Ou... | 07/19/1988 |
| 4718346 | Explosive charge for the explosive welding of large diameter pipes, and a method for its manufacture The disclosure relates to an explosive charge intended for the explosive jointing of, primarily, large-diameter pipes, such as pipeline pipes. The charge according to the invention is intended to be delivered as a unit ready to be applied immediately on s... | 01/12/1988 |
| 4640192 | Means for securing tubes to a tube sheet A device for mechanically welding a tube to a tube sheet having holes into which the tube is placed. A detonator is provided for detonating explosives for generating gas at a high pressure. A barrel having a perforated section is attached to the detonator... | 02/03/1987 |
| 4572075 | Methods and apparatus for loading a borehole with explosives A method and apparatus for delivering an explosive to the bottom of a borehole containing water without allowing a detrimental amount of mixing between the explosive and the water. More particularly, the present invention allows an ammonium nitrate rich b... | 02/25/1986 |
| 4537133 | Non-incendive rock-breaking explosive charge Non-incendive explosive charge for use in flammable atmospheres includes a layer of damp salt as quenching material surrounding a charge enclosed in an inner housing. An outer housing is strong and pliable, being formed of reinforced rubbery material, to ... | 08/27/1985 |
| 4492165 | Expandable explosive and stemming cartridge An explosive or stemming package is provided which is self-retaining in vertical or inclined up-holes in stable rock. The package containing a flowable material, for example, slurry explosives, consists of a thin-walled cylindrical bag having at least one... | 01/08/1985 |
| 4432268 | Detonation cut-off device A passive detonation cut-off device for a solid line of explosives operates by directionally controlling the detonation pressure of an accidental detonation wave of an explosives line and by using this directionally controlled detonation pressure to sever... | 02/21/1984 |
