Connector for square or rectangular structural tubing
Patent 5904437 Issued on May 18, 1999. Estimated Expiration Date: 
July 10, 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.
July 10, 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 3313199 3701553 3901613 Robot-friendly connector Joint for truss structure Tubing connector Connecting mechanism for tubular frame members Patent #: 5605410 InventorApplicationNo. 891256 filed on 07/10/1997US Classes:403/170, Three or more radiating members403/171, Polyhedral403/217, THREE OR MORE MEMBERS CONNECTED AT SINGLE LOCUS403/297Expansible sectionExaminersPrimary: Kim, Harry C.Foreign Patent References
International ClassF16B 2/0/4AbstractA connector for square or rectangular tubing. The connector consists of a cubic or otherwise appropriately shaped block with projecting sections in each direction where tubing is intended to be connected. The projecting sections fit loosely inside the tubing. Each projection has an internal cam that is rotated in place to drive radial pins outward to engage the inner surface of the tubing. Cam rotation is accomplished by screw means that are mounted transverse to the axis of the tube and engage the cam tangentially. In some embodiments, additional screw means engage the cam to cause contrary rotation to disassemble the connection. | |
