Flexible replacement section for irrigation and water pipe
Patent 5778935 Issued on July 14, 1998. Estimated Expiration Date: 
March 18, 2016. 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 18, 2016. 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 3502356 3588148 3612580 3773087 3826521 3837685 Push-type coupling and conduit pipe assembly Pipeline repair kit Coupling hose assembly Hose repair connector apparatus InventorApplicationNo. 617094 filed on 03/18/1996US Classes:138/97, REPAIRING138/109, With end structure138/120Joined sectionsExaminersPrimary: Ferensic, Denise L.Assistant: Hook, James Attorney, Agent or FirmInternational ClassF16L 055/18AbstractFor connecting the spaced ends of underground irrigation or water pipe, a flexible replacement section with a rigid tubular coupling at each end is employed. Each coupling has an inner diameter equal to the outer diameter of the pipe being connected and is adapted to receive a pipe end therein. After one coupling is aligned with and mounted on one of the pipe ends, the replacement section is flexed so that the other coupling can be aligned with and mounted on the other pipe end as the flexed section is straightened. | |
