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Patent No. 5277148

Wearable Pet Enclosure

An enclosure for small animals which is wearable on the front or back of an animate being.

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Class 89/7 - Explosive charge


Subclass of Class 89 - Ordnance
Definition: Guns in which the compression of the propelling-gas is secured
No. of patents: 181
Last issue date: 09/13/2011


1          
NumberTitleIssue Date
8015907Projectile launcher
An apparatus for launching a projectile, such as a paintball. The apparatus uses energy generated from the combustion of fuel to propel a projectile out of the apparatus. ...
09/13/2011
8006602Combustion powered pneumatic augmented gun
A combustion powered, pneumatic augmented gun system is disclosed. The combustion powered, pneumatic augmented gun system may include a gun barrel, a combustion chamber, an augmentation air plenum in fluid communication with the combustion chamber, a trigger valve a...
08/30/2011
7954413Two-stage light gas gun
An improved two-stage light gas gun for launching projectiles at high speeds. The gun consists of three tubes: the expansion, pump, and launch tubes. The expansion tube contains a close-fitting expansion piston that is propelled by an explosive charge. The expansion...
06/07/2011
7926403Transient, high rate, closed system cryogenic injection
The new injection system provides rapid, high pressure, high density, and transient batch injection of cryogenic liquids. The system stores and maintains the temperature of liquids in vacuum jacketed tanks, increases pressures using pumps, and stores the high pressu...
04/19/2011
7770504Apparatus and method for firing a projectile
Apparatus for firing a projectile comprises a receiver, a barrel, a supply of combustible gas, a combustion chamber, a valve arrangement for controlling flow of combustible gas from the supply to the combustion chamber, an igniter, and a passageway for directing com...
08/10/2010
7739938Gas generator launcher for small unmanned aerial vehicles (UAVs)
The launching of an unmanned projectile includes pre-packaging a barrel with a projectile, a pusher cup, and a gas generator. The gas generator generates gas to propel the projectile out of the barrel. A pressure chamber increases a pressure of the gas in the barrel...
06/22/2010
7665396Projectile launcher
An apparatus for launching a projectile, such as a paintball. The apparatus includes a body defining a combustion chamber and a bore. A front bolt is provided that moves between a first position and a second position in which at least a portion of the front bolt is ...
02/23/2010
7337774Projectile firing device using liquified gas propellant
Rifle (1) comprises barrel (2) and loading means (15) for introducing a projectile from magazine (7) into breech (4). The projectile is propelled by a compressed gas propellant initially stored as a liquid in canister (10). ...
03/04/2008
7305912Chemically driven hydrogen gun
An electrothermal gun uses an apparatus for generating high gas pressure. The apparatus includes a receiver having a combustion chamber for holding a propellant which produces a gas component and a particle component when the propellant undergoes an exothermic chemi...
12/11/2007
7296504Pyrotechnic actuator of the variable-thrust-acting type
The technical field of the invention is that of pyrotechnic actuators comprising a piston, the basic function of which is to exert a thrust so as to displace an object by shooting out the piston. More particularly, the invention relates to a pyrotechnic actua...
11/20/2007
7293558System for launching lightweight elements during festive events
A system for projecting light elements in the air, including: a casing connected to a reservoir containing the light elements and including an opening extending along a determined direction; a slide capable of sliding in the opening along the determined direction; a...
11/13/2007
7293493Weapon sight
This invention, as a unit, is a training adjustable combination sight, primarily intended to be mounted on a vehicle of smaller vessel for close-in defence of these against air and ground attacks. In its entirety, aside from the required sight sensors (16-...
11/13/2007
7270044Plasma firing mechanism and method for firing ammunition
The invention comprises a device and method for firing firearm ammunition using a plasma torch generator. In a particular embodiment, the device relates to the control or management of the rate of fire and number of rounds fired in a burst firing mode for automatic ...
09/18/2007
7254914Hydrogen operated recreational launcher
A hydrogen operated gun for shooting projectiles such as a paint pellet. Hydrogen gas is supplied to a combustion chamber and is combusted by a trigger controlled piezo igniter. The hydrogen may be supplied by a hydrogen generator or by a hydrogen storage container ...
08/14/2007
7207252Determining cook-off time of weapon
Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such...
04/24/2007
7197843Electronic ignition system for a firearm
Electronic ignition systems which are designed for use with personal firearms utilizing black powder (or black powder substitutes) such as shotguns, rifles, and pistols. Generally, the firearms will be of the type classified as muzzleloaders. The electronic ignition...
04/03/2007
7194945Projectile firing apparatus
A barrel assembly with a barrel is provided. The barrel comprises a plurality of external chambers containing respective propellant charges, a plurality of projectiles stacked nose to tail within the barrel and comprising respective expansion spaces for propellant g...
03/27/2007
7174833Shotgun shell flight path indicator
A shotgun shell flight path indicator is described which in general includes a shell casing having a primer end having a primer, a propellant disposed within the interior of the casing proximate to the primer adapted for ignition by the primer, and a non-combustible...
02/13/2007
7171904Shotgun shell flight path indicator
A shotgun shell flight path indicator is described which in general includes a shell casing having propellant disposed within the interior of the casing proximate and a non-combustible indicator positioned within the casing. The indicator generally has a sufficient ...
02/06/2007
7165496Piston head cartridge for a firearm
A firearm cartridge is provided with a case body and a piston head. The piston head is movably engaged with a rearward end of the case body. The piston head seals the rearward end of the case body to contain propellant gases in the case body when the firearm cartrid...
01/23/2007
7150409Injection systems
The invention in general relates to various injection systems and devices that can be used, for example, in needleless injection systems for human, and for domestic and farm animals. In certain embodiments, the invention provides an injection device comprising: an i...
12/19/2006
7089697Trigger transition filter for a paintball marker
A method of preventing trigger bounce during the launching of a projectile by a projectile launcher includes the step of first providing a projectile launcher having a trigger capable of actuating between a full non-firing position and a full firing position. An amo...
08/15/2006
7083141Self-propelled projectile
A self-propelled projectile which will maintain a straight trajectory through air or water. ...
08/01/2006
7066072Determining cook-off time of weapon
Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such...
06/27/2006
7059249Transverse plasma injector ignitor
A plasma injector for use in munitions having a central axis. The plasma injector has a stub case, a tube, an anode, a cathode, and a conductive wire. The tube has a first end, a second end, and a central bore extending therethrough. The tube has at least one apertu...
06/13/2006
7047886Method and apparatus for removing obstructions in the mines
The present invention is directed to a system for fragmenting rock obstacles and obstructions in mines. The system uses a projectile having a flat or concave nose and a detonating device that has a safety pin to prevent a striker from prematurely igniting the primer...
05/23/2006
7036260Method and system to prevent firing live rounds of ammunition during miles exercises
A safety system for preventing a handheld firearm from discharging an inadvertently loaded live ammunition projectile or bullet during a training exercise or the like by safely venting through a series of substantially perpendicular vent holes in the barrel, the pre...
05/02/2006
6994011Firearm safety device
A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am...
02/07/2006
6968770Firearm safety device
A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am...
11/29/2005
6968811Power tool having a combustion chamber and method of cooling the combustion chamber
A power tool includes a combustion chamber (1; 54), a drive piston (8) adjoining the combustion chamber (1; 54) and displaceable upon combustion of fuel in the combustion chamber, an ignition device (52) for igniting the fuel in the combu...
11/29/2005
6945495Hydrogen powered toy rocket utilizing hydrogen from the electrolysis of water
A toy rocket assemblage including a chamber containing water and an anode and cathode and a power supply for the anode and cathode to generate oxygen and hydrogen in the chamber. A plenum chamber for collecting the oxygen and hydrogen gasses. A toy rocket on a launc...
09/20/2005
6922480Methods for encoding security documents
Line art on a banknote or other security document is slightly changed to effect the encoding of plural-bit digital data (i.e. the banknote is digitally watermarked). When such a banknote is thereafter scanned, the resulting image data can be recognized as correspond...
07/26/2005
6843178Electromagnetic pulse transmitting system and method
A plasma antenna generator includes an ionizable material, an explosive charge capable of projecting the ionizable material upon detonation, and a detonator coupled with the explosive charge. An electromagnetic pulse transmitting system includes an electromagnetic p...
01/18/2005
6595103Inertial breechblock gun system
A contained Davis gun system enables misfire and hang-fire handling for fire out of battery (also known as soft recoil). The gun system decreases structural dynamic activity of the gun barrel during launch with resulting increases in system accuracy. The ...
07/22/2003
6374717Device for provoking an avalanche
The invention concerns a device (10) for provoking an avalanche comprising a gas gun (12) the end of which is fixed to a seat (13) solidly anchored to the mountain and the downstream end of which is born by at least one leg (14) such that the mouth of the...
04/23/2002
6223642Cannon for axially fed rounds with breeched round sealing breech chamber
A projectile firing weapon for firing rounds of the type having a projectile and an associated bore seal which is radially expanded by relative axial displacement between the projectile and the bore seal. The weapon includes a barrel assembly having a bar...
05/01/2001
6212988Self sustained detonation apparatus
A detonation coating apparatus that coats a substrate with a coating powder which is propelled by the products of a detonation. The present invention increases the rate at which the coating is applied by increasing the detonation rate of the combustible g...
04/10/2001
6192612Propulsion device
A propulsion device including a fuel chamber and barrel constructed with off-the-shelf parts for propelling biodegradable objects. The fuel chamber includes a fuel nozzle actuator for receiving fuel from a pressurized gaseous container. The fuel chamber a...
02/27/2001
6142056Variable thrust cartridge
The present invention is a variable thrust cartridge comprising a water-molten aluminum reaction chamber from which a slug is propelled. The cartridge comprises a firing system that initiates a controlled explosion from the reaction chamber. The explosive...
11/07/2000
6125834Free-piston cutting machine
A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas un...
10/03/2000
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