Pipe thread cleaning apparatus
Patent 5157802 Issued on October 27, 1992. Estimated Expiration Date: 
October 21, 2011. 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.
October 21, 2011. 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 3436783 Cleaner for tubular pin and box ends Thread cleaner with rotatable and adjustably supported brushes Pipe thread cleaner Power pipe thread cleaner Patent #: 4433448 InventorsApplicationNo. 779866 filed on 10/21/1991US Classes:15/88, Wire, rod, and tube cleaners15/104.04, Outside15/104.05, Inside15/104.095Power source outside tube endExaminersPrimary: Roberts, Edward L.Attorney, Agent or FirmInternational ClassB08B 009/02AbstractA pipe thread cleaner has cleaning heads with rotated thread brushes driven by motors on the heads. Separate heads for box and pin ends have splash shrouds with gaskets to bear on pipe surfaces. Cleaning fluids under pressure are supplied, selectively, to the heads. The heads have a scavenger system plumbed to a vacuum collector tank. The heads have pipe bore plugs on brush spindle extensions that seal the bore and squeegee the inner pipe surfaces when the heads are removed from the pipe. Optionally, compressed air replaces cleaning fluid to jets in the heads to finally blow dry the cleaned threads. Further options include jets that spin with the brushes and a centrifuge to recover reusable cleaning fluids from the effluent fluids from the cleaning heads. | |
