Pipe tapping bands
Patent 4158461 Issued on June 19, 1979. Estimated Expiration Date: 
June 19, 1996. 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.
June 19, 1996. 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 1459030 2643138 3134613 3360284 3362730 3471176 3489441 3840255 InventorApplicationNo. 05/619973 filed on 09/30/1975US Classes:285/111, C-shaped section285/197Saddle-type clampExaminersPrimary: Callaghan, Thomas F.Attorney, Agent or FirmInternational ClassesF16L 41/08 (20060101)F16L 41/12 (20060101) Foreign Application Priority Data1974-10-01 AUAbstractThis invention provides a pipe tapping band of the type formed in two halves adapted to be clamped about a pipe to be tapped, one band half having an internally threaded integral ferrule to receive conventional pipe tapping means, a recess in the inner surface of the tapping band around the ferrule aperture, said recess arranged to receive and locate an apertured resilient seal between the tapping band and the outer surface of the pipe about an aperture formed therein and with said seal having peripheral lips arranged to provide sealing engagement with the tapping band and the outer surface of the pipe about the aperture therein. | |
