Pipe joint
Patent 5127758 Issued on July 7, 1992. Estimated Expiration Date: 
May 10, 2010. 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.
May 10, 2010. 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 3356394 Steel tube scaffold Knot joint for network structures Patent #: 4669908 InventorApplicationNo. 490692 filed on 05/10/1990US Classes:403/171, Polyhedral403/174, Coplanar403/176PolyhedralExaminersPrimary: Kundrat, Andrew V.Attorney, Agent or FirmForeign Patent References
International ClassF16D 001/00AbstractA pipe joint for joining several pipes used in a pipe grid structure such as a scaffold. Each pipe (3) is connected, by way of a connecting member (17) inserted into its interior from the end of the pipe and by way of a clamping device (16) composed of two opposing clamping jaws (21, 22) held together by a screw connection (20), with the continuous or discontinuous peripheral extension (9) of a connecting element (1). | |
