Pneumatic gun and projectiles therefor
Patent 5329660 Issued on July 19, 1994. Estimated Expiration Date: 
March 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1806270 1867751 3631555 Mechanism for purging a plural component mixing and dispensing gun Cleaning member for cleaning the interior of heat exchanger tubes Pipeline spheres Device for final cleaning of tubes Pneumatic gun Patent #: 4974277 InventorAssigneeApplicationNo. 983849 filed on 03/03/1993US Classes:15/3.5, With means to pass a solid cleaning agent and a fluid carrier through tubular work15/104.061, Fluid current operated15/104.062, Cleaner plug insertion or removal device406/38AMBULANT OR PORTABLEExaminersPrimary: Roberts, Edward L.Attorney, Agent or FirmInternational ClassB08B 009/04Foreign Application Priority Data1990-08-10 AUAbstractA hand held pneumatic gun has an airway arranged to be coupled to a source of compressed air, the airway communicating with an air chamber via a trigger valve assembly. The gun includes a detachable breech that is supported in a sealed position against the air chamber by a support ring pivotally secured to the body of the gun. An interlocking assembly is arranged to interlock with the trigger valve assembly if the breech is not supported in its sealed position, so that actuation of the trigger valve assembly is inhibited unless the breech is sealed against the air chamber. The breech incorporates a nozzle that can be secured to an end of a hose or tube and a polymer projectile is placed into the breech to be forced by the air pressure through the hose or tube to clean the interior of the hose or to remove contaminate matter therefrom. | |
