Class / Patent application number | Description | Number of patent applications / Date published |
042100140 | UNDERWATER TYPE | 6 |
20090320345 | Underwater Gun Comprising a Valve-Type Barrel-Seal - 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. | 12-31-2009 |
20100251589 | UNDERWATER GUN COMPRISING A TURBINE-BASED BARREL SEAL - 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. | 10-07-2010 |
20100281728 | Underwater Gun Comprising a Barrel Adapter including a Barrel Seal - 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. | 11-11-2010 |
20100281729 | Underwater Gun Comprising a Plate-Type Barrel Seal - 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. | 11-11-2010 |
20100281730 | Underwater Gun Comprising a Passive Fluidic Barrel Seal - 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. | 11-11-2010 |
20140013639 | DEVICE FOR UNDERWATER FIRING FROM A FIREARM - This invention generally relates to firearms or more precisely—to devices providing underwater firing firearms from within the dry environment. | 01-16-2014 |