Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8161881 | Ring booster for fuze A fuse and a fusing method comprising initiating detonation of a first booster comprising a circular shaped charge and thereby causing detonation of a second booster. ... | 04/24/2012 |
| 8069790 | Methods and apparatus for attachment adapter for a projectile Methods and apparatus for mounting a secondary system on a projectile according to various aspects of the present invention operate in conjunction with a collar. The collar is adapted to at least partially receive a fuze assembly or other projectile structure within... | 12/06/2011 |
| 7971533 | Methods and apparatus for weapon fuze Methods and apparatus for a weapon according to various aspects of the present invention comprise and/or operate in conjunction with a warhead case and a fuze system. The fuze system may comprise a fuze housing including a flange configured to be secured to the weap... | 07/05/2011 |
| 7930976 | Slow burning, gasless heating elements A structure includes a substrate of a first material and a second material coating at least a portion of the substrate, where the second material is different from the first material, where the first and second materials, upon being thermally energized, react with e... | 04/26/2011 |
| 7814834 | Fuze mounting for a penetrator and method thereof A fuze mounting assembly for a penetrating weapon configured as a projectable device, the fuze mounting assembly having fasteners, a fuze well and a fuze. The fuze includes an integral bolt flange for securing to the fuze well with the fasteners, wherein an amplific... | 10/19/2010 |
| 7802518 | Fuze mounting assemblies for penetrator weapons A fuze mounting assembly for a penetrating, the fuze mounting assembly includes a fuze well and a fuze. The fuze includes an integral flange for securing to the fuze well. ... | 09/28/2010 |
| 7552682 | Accelerometer mounting for a penetrator and method thereof A fuze for a weapon configured as a projectable device is provided to reduce the mechanical amplification of impact and penetration shock to a fuze-mounted accelerometer when a projectable device including the fuze encounters a target. The fuze includes a fuze housi... | 06/30/2009 |
| 7549374 | Fuze mounting for a penetrator and method thereof A fuze mounting assembly for a penetrating weapon configured as a projectable device, the fuze mounting assembly having fasteners, a fuze well and a fuze. The fuze includes an integral bolt flange for securing to the fuze well with the fasteners, wherein an amplific... | 06/23/2009 |
| 7246558 | Rapid deflagration cord (RDC) ordnance transfer lines A novel transfer ordnance line and novel end fittings for the transfer line for use in space vehicles, aircraft, missile systems and other military applications. The transfer line is a Rapid Deflagration Cord (RDC) hermetically encapsulated in a metal tubing. The me... | 07/24/2007 |
| 7188566 | Non-electric detonator A detonator (10) has a constant-diameter shell (12) which has a significantly higher shell length-to-diameter (outside diameter) ratio than prior art detonators. The shell (12) is configured to hold an explosive output charge (18) which i... | 03/13/2007 |
| 7100511 | Dual redundancy system for electronic detonators A detonator assembly (10) comprising a housing (12) disclosed and claimed. The assembly comprises an main circuit (11) comprising an electrically operable fuse (16) located in the housing. The assembly further comprises at least a first r... | 09/05/2006 |
| 6880465 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cut-off barrier provided by, e.g., a separating rib (46) be... | 04/19/2005 |
| 6834594 | Tubular gas generator A gas generator comprises a tubular housing of a pressure-resistant material and a propellant strand which is incorporated in the housing and provided with an envelope. At least one channel is provided between the envelope and the propellant strand so as to extend i... | 12/28/2004 |
| 6601516 | Low energy fuse Low energy fuse for use in transmitting shock waves. The fuse consists of a hollow plastic tube fabricated of an ethylene-chlorotrifluoroethylene terpolymer, with a coating of reactive powder on an inner wall of the tube. The terpolymer contains a third p... | 08/05/2003 |
| 6561101 | Explosive delay assembly An explosive delay assembly including a housing, the housing includes a continuous elongated sidewall surrounding a region bounded at one end by a top surface, the top surface including an aperture configured for accepting an end booster where the end boo... | 05/13/2003 |
| 6513437 | Blast initiation device A detonator device and assembly for the initiating a plurality of signal transmission lines with a pressure impulse. The detonator device comprising a detonator casing having a signal receiving end and a firing end. The firing end of the detonator device ... | 02/04/2003 |
| 6508176 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cutoff barrier provided by, e.g., a separating rib (46) between adjacent win... | 01/21/2003 |
| 6431074 | Blasting apparatus, blasting method and retainer member used for the blasting method Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance 10 expands in volume, so that the evaporative expansion force re... | 08/13/2002 |
| 6347566 | Method of making a signal transmission fuse A signal transmission fuse is made of a tube (36) which encases a support tape (14) having a reactive coating (18') which is adhered to one side of the tape by a binder. A method of making the signal transmission fuse includes depositing on the support ta... | 02/19/2002 |
| 6247410 | High-output insensitive munition detonating cord A detonating cord has a core of highly brisant PBXN-8 explosive surrounded by an inner braided layer of polyamide yarn, a flexible sealing sleeve of silicone rubber coated with glue, and an outer braided layer of polyamide yarn adhered to the sealing slee... | 06/19/2001 |
| 6170398 | Signal transmission fuse A signal transmission fuse is made of a tube (36) which encases a support tape (14) having a reactive coating (18') which is adhered to one side of the tape by a binder. A method of making the signal transmission fuse includes depositing on the support ta... | 01/09/2001 |
| 6006671 | Hybrid shock tube/LEDC system for initiating explosives In a non-electric system for initiating explosives, a shock tube is initiated by the detonation of a low-energy detonating cord (LEDC) whose wall has been placed adjacent to an initiation-sensitive region of a thin membrane in the shock tube, or in a capp... | 12/28/1999 |
| 5945627 | Detonators comprising a high energy pyrotechnic In-hole and surface detonators are provided which are essentially free from primary explosives. The detonators utilize a high energy pyrotechnic mixture of a fuel and an oxidizer for initiation of a base charge enclosed in the detonator, or for the initia... | 08/31/1999 |
| 5864084 | Glow in the dark fuse and method for making same A glow in the dark firework device and a method for making same is disclosed. The firework device (10) includes a body (12) having an outer body surface (14), and a glow in the dark fuse (18) passing from the inner body surface (7) of body (12) to the out... | 01/26/1999 |
| 5747722 | Detonators having multiple-line input leads A detonator (10) is equipped with an input lead (29) having multiple signal transmission lines (30, 31) which provide redundant initiation signals to the target charge (14) of a detonator (10, 10') thereby increasing the reliability of initiation. The mul... | 05/05/1998 |
| 5721392 | Pyrotechnic ignition device The pyrotechnic ignition device of this invention comprises a hollow tubular coiled charge of pyrotechnic sheet material defining an ignition initiation position, the internal diameter of the charge decreasing and the wall thickness increasing over at lea... | 02/24/1998 |
| 5710390 | Shock tube initiating system for display fireworks A system for initiating shock tube which has a low cost of manufacture, is relatively impervious to moisture, and initiates the shock tube reliably is described. The initiating system comprises a thermal input initiator device, a thermal enhancing output ... | 01/20/1998 |
| 5629493 | Low energy fuse having improved properties in both axial and radial directions A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer clos... | 05/13/1997 |
| 5597973 | Signal transmission fuse A signal transmission fuse (10, 20) such as shock tube has an outside diameter (OD) not greater than about 2.380 mm (0.0937 inch), for example, a tube outside diameter (OD) of from about 0.397 to 2.380 mm (about 0.0156 to 0.0937 inch), and the ratio of th... | 01/28/1997 |
| 5540155 | Fuse and a method of manufacturing it An elongate flexible fuse is provided, preferably by an extrusion process, which consists of an oxidizing agent and a fuel present in quantities which will permit a rate of burning of from 10 seconds/meter to 250 seconds/meter. The oxidizing agent is pref... | 07/30/1996 |
| 5259315 | Non-electrical detonator A non-electrical detonator including an elongate sleeve with a main charge, an initial charge, a delay composition and a gas chamber therein, a subassembly for firing the delay composition including a percussion cap engageable by a double ended striking p... | 11/09/1993 |
| 5162606 | Modular blasting system Modular components including donor units (20), relay units (30), and detonator units (50) create a variety of blasting systems. A donor unit (20) is formed from a signal transmission tube (22) having donor mini-caps (24) attached to each end thereof. A re... | 11/10/1992 |
| 5050503 | Selectively aimable warhead initiation system A system for aiming a selectively aimable warhead (SAW) at a target by exsively deforming the warhead into a shape desirable for directionality. Twenty-four explosive forming charges are located around the circumference of the warhead and run the entire ... | 09/24/1991 |
| 5046425 | Manufacture of explosive circuits using silk screening techniques and explosive inks A method for manufacturing explosive logic circuit trails using conventio silk screening techniques. Silk screening is used to build up both the explosive trail, as well as the inert substrate. This is accomplished one layer at a time onto a circuit base... | 09/10/1991 |
| 5022326 | Asynchronous explosive logic safing device An asynchronous explosive logic safing device which is mappable as a network on a single surface to perform the safe/arming function for an explosive device or warhead. The safing device uses explosive logic AND gates and AND/OR gates in conjunction with ... | 06/11/1991 |
| 5009162 | Explosive logic resolver network An explosive logic resolver network for determining which detonator in a rality of detonators is the first to detonate. The resolver network is interposed between a plurality of detonators and the explosive logic clock of a safe/arming network. Each deto... | 04/23/1991 |
| 4998963 | Explosive logic clock An explosive network forming an explosive logic clock for opening a time window during which a set of theoretically identical detonators must fire. The explosive logic clock also examines the first detonation to determine whether or not it is premature be... | 03/12/1991 |
| 4989516 | Safe/arm explosive delay path A safe/arm explosive delay path for detonating an explosive device and prnting detonation of the explosive device by extraneous factors present in the internal environment. The delay path comprises a detonator and first explosive trail leading to a delay... | 02/05/1991 |
| 4974514 | Explosive safety junction An explosive safety junction which can meet the high reliability and safety standards of conventional or nuclear weapon safing devices. The safety junction is an explosive logic device having an inlet trail which diverges into one or more tiers of safety ... | 12/04/1990 |
| 4917017 | Multi-strand ignition systems Linear ignition tube suitable for the ignition of long propellant beds. The tube comprises an elongated tubular member having a ratio of interior diameter to wall thickness of at least 4. The ignition tube is provided with a plurality of ignition strands ... | 04/17/1990 |