Underwater Type Patents (Class 42/1.14)
  • Patent number: 8919020
    Abstract: This invention generally relates to firearms or more precisely—to devices providing underwater firing firearms from within the dry environment. The device for underwater firing for a firearm comprises: a weapon with ammunition, a fire control tool and a controllable muzzle valve with a passage opening intended for passing of the projectile in the course of the underwater shot. Moreover, the device comprises an outer housing having inside it at least a weapon and ammunition. The fire control tool has at least one pyrotechnical charge intended to produce inside the housing before firing the excessive pressure exceeding the exterior water pressure. Moreover, the fire control tool is connected with the muzzle valve that provides firing after opening of the muzzle valve in the result of increasing pressure of the pyrotechnical gas inside the housing and ceasing firing after closing of the muzzle valve.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: December 30, 2014
    Inventors: Andrey Albertovich Polovnev, Liliyana Borisovna Polovneva
  • Publication number: 20140013639
    Abstract: This invention generally relates to firearms or more precisely—to devices providing underwater firing firearms from within the dry environment. The device for underwater firing for a firearm comprises: a weapon with ammunition, a fire control tool and a controllable muzzle valve with a passage opening intended for passing of the projectile in the course of the underwater shot. Moreover, the device comprises an outer housing having inside it at least a weapon and ammunition. The fire control tool has at least one pyrotechnical charge intended to produce inside the housing before firing the excessive pressure exceeding the exterior water pressure. Moreover, the fire control tool is connected with the muzzle valve that provides firing after opening of the muzzle valve in the result of increasing pressure of the pyrotechnical gas inside the housing and ceasing firing after closing of the muzzle valve.
    Type: Application
    Filed: March 6, 2012
    Publication date: January 16, 2014
    Inventors: Andrey Albertovich Polovnev, Liliyana Borisovna Polovneva
  • Patent number: 8371204
    Abstract: Embodiments of a bubble weapon system and methods for inhibiting movement and disrupting operations of vessels are generally described herein. In some embodiments, a bubble weapon is configured to generate a plume of bubbles in water. The plume reduces buoyancy of the water to inhibit movement of a vessel or disrupt operations of the vessel. In some embodiments, the bubble weapon includes a configurable diffuser section that may be configured in a thrust-neutral configuration or a thrust-engaged configuration.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: February 12, 2013
    Assignee: Raytheon Company
    Inventors: Steven J. Elder, James H. Dupont
  • Patent number: 8046947
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus clears the barrel and/or prevents water from entering the barrel based on pressure variations.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 1, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Patent number: 8042295
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises an adapter that attaches to the barrel and includes a physical adaptation that is capable of sealing the barrel. In some embodiments, the physical adaptation is actuated to un-seal the barrel via combustion gases from firing of a round.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 25, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Patent number: 8024966
    Abstract: A test system that is capable of evaluating the effectiveness of a weapons system designed to defeat an incoming, fast-moving, underwater munition is disclosed. In the illustrative embodiment, an extremely large tubular sheath is inflated underwater. The sheath is maintained at a depth and inclination that is appropriate for an incoming torpedo. An inert projectile is launched or flown inside the sheath at a speed that is consistent with the speed of munition that the weapons system is intended to defeat.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: September 27, 2011
    Assignee: Lockheed Martin Corporation
    Inventor: Jyun-Horng Fu
  • Patent number: 7984581
    Abstract: An unguided projectile-accelerator system includes an enclosure, first and second charges, first and second projectiles, and a recoil-absorbing mechanism. The enclosure has an open first end and a closed second end, and the first and second charges are disposed within the enclosure. The first projectile is disposed within the enclosure between the first charge and the first end and is operable to exit the enclosure via the first end and to generate a first recoil in response to detonation of the first charge. The second projectile is disposed within the enclosure between the first charge and the second charge and is operable to exit the enclosure via the first end and to generate a second recoil in response to detonation of the second charge. The recoil-absorbing mechanism is disposed adjacent to the enclosure and is operable to absorb at least a respective portion of each of the first and second recoil.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: July 26, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: John W. Rapp, Robert J. Howard
  • Patent number: 7874091
    Abstract: An apparatus for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a magnetically-attractable water-impermeable disk. Via operation of a drive system, the disk is movable between a sealing position, wherein it prevents water from entering the barrel by moving into alignment with the first bore, and a firing position, wherein the first water-impermeable disk moves out of alignment with the first bore.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 25, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Jyun-Horng Fu, Robert James Howard, John W. Rapp, Antonio Paulic
  • Patent number: 7832134
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a turbine that is disposed at the outlet of the muzzle of the gun. The turbine draws in water and, in various embodiments, either (a) vaporizes it, forming a vapor barrier along the spin axis that keeps water out of the barrel, (b) expels it radially, thereby re-directing it so that it does not enter the barrel, or (c) generates water jets that prevent water from entering the barrel.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 16, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Publication number: 20100281729
    Abstract: An apparatus for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a magnetically-attractable water-impermeable disk. Via operation of a drive system, the disk is movable between a sealing position, wherein it prevents water from entering the barrel by moving into alignment with the first bore, and a firing position, wherein the first water-impermeable disk moves out of alignment with the first bore.
    Type: Application
    Filed: June 30, 2008
    Publication date: November 11, 2010
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Jyun-Horng Fu, Robert James Howard, John W. Rapp, Antonio Paulic
  • Publication number: 20100281730
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus clears the barrel and/or prevents water from entering the barrel based on pressure variations.
    Type: Application
    Filed: June 30, 2008
    Publication date: November 11, 2010
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Publication number: 20100281728
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises an adapter that attaches to the barrel and includes a physical adaptation that is capable of sealing the barrel. In some embodiments, the physical adaptation is actuated to un-seal the barrel via combustion gases from firing of a round.
    Type: Application
    Filed: June 30, 2008
    Publication date: November 11, 2010
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Publication number: 20100251589
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a turbine that is disposed at the outlet of the muzzle of the gun. The turbine draws in water and, in various embodiments, either (a) vaporizes it, forming a vapor barrier along the spin axis that keeps water out of the barrel, (b) expels it radially, thereby re-directing it so that it does not enter the barrel, or (c) generates water jets that prevent water from entering the barrel.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 7, 2010
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Patent number: 7681352
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a valve that is moved between a sealing and non-sealing state by a valve-actuator. In some embodiments, the valve actuator is driven by gases that result when a round is fired.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: March 23, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Publication number: 20090320345
    Abstract: An apparatus and method for sealing the barrel of an underwater gun between firings is disclosed. The apparatus comprises a valve that is moved between a sealing and non-sealing state by a valve-actuator. In some embodiments, the valve actuator is driven by gases that result when a round is fired.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Jyun-Horng Fu, Robert James Howard, Antonio Paulic, John W. Rapp
  • Patent number: 7392733
    Abstract: A projectile based targeting system for underwater objects includes a trainable gun terminal mounted in a waterproof housing. The gun terminal includes plural gun barrels terminating in waterproof breeches. Noise generating projectiles are launched from the gun barrels, and a fire control system selectively fires the projectiles from each of the plural gun barrels in a noise pattern. A host controller detects and processes noise generated by a launched pattern of the noise generating projectiles to give information about the objects. The projectiles each include a void region connected to an outer surface of the projectile by a hole formed in a neck of the projectile. Launching of the projectile creates a vaporous cavity around the projectile and thus the hole, thereby causing the void region to resonate at a noise generating frequency.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: July 1, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert Kuklinski, Thomas J. Gieseke
  • Patent number: 7331108
    Abstract: A knife includes a handle, a blade and a trigger. The handle has an internal cavity containing a compressed gas source and the blade is affixed to the handle. The blade has an internal bore running along a longitudinal axis from the handle to a point proximate a tip. The blade further has an aperture extending from a first edge to the internal bore at an angle relative to the longitudinal axis of between 15° and 75°. The trigger has a depressed position and a not depressed position. When in the depressed position, the internal bore communicates with the compressed gas source and when in said not depressed position, the internal bore is blocked from the compressed gas source. When a creature is pierced with the knife, the trigger is depressed injecting compressed gas into the creature greatly enhancing the incapacitating effect of the knife.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: February 19, 2008
    Inventor: Gregory T. Rondinone
  • Patent number: 7313881
    Abstract: A pneumatic launcher has a plenum chamber section, an intermediate chamber section and a launch tube section connected together in a generally linear arrangement. The plenum chamber section defines a plenum chamber that has a closed end and an open end. The intermediate chamber section has aft and forward rupture disks consecutively arranged to define an intermediate chamber. The plenum chamber is pressurized with a pressurized gas to a design plenum pressure and the intermediate chamber is pressurized with a pressurized gas to pressure that is about one-half the design plenum pressure. The intermediate chamber is then depressurizing to produce a pressure imbalance between the plenum and intermediate chambers that causes said aft and forward rupture disks to rupture. As a result, pressure equilibrium occurs between the plenum chamber and launch tube thereby discharging the fluid and projectile from the interior of the launch tube.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: January 1, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas J. Gieseke, Nicholas Bitsakis, Benoit G. Gauthier, Robert Kuklinski
  • Patent number: 7237353
    Abstract: A muzzle break for a gun comprising a baffle, a series of slots in the housing of the muzzle break in which the slots exhaust gas of a pressure wave deflected by the baffle during firing of the gun. A membrane seals the slots for underwater use and is separable by the deflected exhaust gas. Another membrane seals a sabot separation chamber of the muzzle break adjacent to the baffle and in a projectile path from the baffle. The membrane for the separation chamber is detachable by a projectile fired from the gun.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 3, 2007
    Assignee: The United States of America represented by the Secretary of the Navy
    Inventors: Charles H. Beauchamp, Thomas J. Gieseke, William H. Nedderman, Jr.
  • Patent number: 7043864
    Abstract: A spear gun sight assembly includes a rear sight with a first plate having a generally perpendicular bend therein such that a vertically orientated lower portion and a horizontally orientated upper portion are defined. A peep sight is attached to and extends upwardly from a top side of the upper portion. The peep sight has a peephole extending therethrough. A first coupler is adapted for releasably securing the rear sight to a spear gun. A front sight includes a second plate that has an inner side and an outer side. A loop is attached to the second plate so that the loop extends away from the inner side. A sight pin is attached to the second plate and extends into the loop. A second coupler is adapted for releasably securing the front sight to the spear gun so that the peephole is aligned with the sight pin.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: May 16, 2006
    Inventor: Mark A. Reed
  • Patent number: 6923105
    Abstract: A device for countermeasuring an underwater target is provided. The device generally comprises a module having inflatable buoyancy chambers that allow the module to hover at a desired water depth, at least one acoustic array to detect the underwater target, a propulsor system for orienting the module with respect to the underwater target, and a gun for firing one or more projectiles at the underwater target.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: August 2, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas J. Gieseke, Robert Kuklinski
  • Patent number: 6170477
    Abstract: A pneumatic spear gun (11) comprising a barrel (27) having an open end (33) through which a shaft (15) of a spear (13) can be received. A first piston (35) is slidingly and sealingly received in the barrel (27) for movement towards and away from a retracted position. A retaining means (41) is provided for releasably retaining the piston (35) in the retracted position. A source of compressible fluid such as air is contained in a reservoir (59) and is arranged to undergo compression upon movement of the piston (35) into the retracted position and to propel the piston along the barrel (27) from the retracted position upon release of the piston thereby to propel the spear (13). A control means is provided for selectively increasing the pressure of the compressible fluid for varying the propulsive force applied to the piston (35). The control means includes a cylinder (43) forming part of the resevoir (59) and having a second piston (45) slidingly and sealingly mounted therein.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: January 9, 2001
    Inventor: Nicolas James Horlock