Pneumatic gun
Patent 4974277 Issued on December 4, 1990. Estimated Expiration Date: 
September 14, 2009. 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.
September 14, 2009. 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 Device for final cleaning of tubes Patent #: 4467488 InventorAssigneeApplicationNo. 406904 filed on 09/14/1989US Classes:15/3.5, With means to pass a solid cleaning agent and a fluid carrier through tubular work15/104.062, Cleaner plug insertion or removal device406/38AMBULANT OR PORTABLEExaminersPrimary: Roberts, Edward L.Attorney, Agent or FirmInternational ClassB08B 009/04AbstractA hand held pneumatic gun having an airway that is coupled to a source of compressed air, the airway communicating with an air chamber via a trigger valve. The gun includes a detachable breech that is supported in sealed engagement against the air chamber by a support ring pivotally secured to the body of the gun. The breech incorporates a nozzle that is secured to one end of a piece of 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 tube. | |
