Interlocking multipurpose airtool
Patent 5974611 Issued on November 2, 1999. Estimated Expiration Date: 
August 15, 2017. 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.
August 15, 2017. 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 3056395 Fluid ejected and retracted tube clearance tester Device for final cleaning of tubes Pneumatic gun Patent #: 4974277 InventorAssigneeApplicationNo. 849957 filed on 08/15/1997US Classes:15/3.52, By attached line15/3.5, With means to pass a solid cleaning agent and a fluid carrier through tubular work124/56, FLUID PRESSURE173/169, Motive fluid control valve in handle passage254/134.4By fluid pressure differential in conduit (e.g., parachute sucked through conduit)ExaminersPrimary: Spisich, MarkAttorney, Agent or FirmForeign Patent References
International ClassB08B 009/04Foreign Application Priority Data1994-12-16 AUAbstractA multipurpose air tool (1) having a handle (2) to which a head (3) can be removably attached is disclosed. The head (3) has attached thereto various such tools as a face plate (4) and replaceable nozzles (5). The head (3) is interlocked to the handle (2) by a spigot (19) and bayonet connection (21, 23, 34). A safety interlock (16) prevents operation of the trigger (15) and valve (12) unless the head (3) is correctly positioned on the handle.Field of SearchWith means to pass a solid cleaning agent and a fluid carrier through tubular workWith conservation or recovery of the cleaning agent By attached line FLUID PRESSURE Having common supply to plural projector barrels Provided by surge of pressure into evacuated projector barrel Applied to intermediate projectile-engaging member With check valve permitting recharge, and control valve for discharge, of fluid pressure With control for discharge of fluid pressure PASSAGE IN MANIPULATING HANDLE FOR DRIVE MOTOR MOTIVE FLUID Motive fluid control valve in handle passage DRIVE CONTROL OPERABLE BY HAND ENGAGING MANIPULATING HANDLE METHOD OR APPARATUS FOR PLACEMENT OF CONDUCTIVE WIRE Conduit snakes By fluid pressure differential in conduit (e.g., parachute sucked through conduit) | |
