Joint for truss structure
Patent 5310273 Issued on May 10, 1994. Estimated Expiration Date: 
July 9, 2012. 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 9, 2012. 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 3864049 Connecting apparatus for frame members Underwater trusses for breakwater structure Structural connection Pipe-and-ball truss array Concrete structure, block for making such structure and method of making such structure Collet lock joint for space station truss Pinned type connector means for lattice space structures Patent #: 5088852 InventorAssigneeApplicationNo. 910241 filed on 07/09/1992US Classes:403/171, Polyhedral403/45, Having operating mechanism403/170, Three or more radiating members403/176, Polyhedral403/217THREE OR MORE MEMBERS CONNECTED AT SINGLE LOCUSExaminersPrimary: Reese, Randolph A.Assistant: Knight, Anthony Attorney, Agent or FirmForeign Patent References
International ClassE02D 029/00Foreign Application Priority Data1991-07-09 JPAbstractA joint structure for removably attaching a ball member to an end of a bar member to form a truss structure is disclosed having an engagement member attached to the ball member, which engagement member has an exterior portion extending outwardly of the outer surface of the ball member, and an attachment device associated with the end of the bar member which removably engages the exterior portion of the engagement member. The joint structure according to the present invention may be utilized with bar members with or without tension rods extending through the bar member. The ball structure may be a spherical shell made of metal or fiber reinforced plastic which is located within a hollow concrete sphere. The spherical shell is not removed from the interior of the concrete sphere, but, instead, is used to increase the tensile force resistance of the ball member. The spherical shell may be imbedded in the ball member at the time of forming the concrete ball and can be used as a molding core.Field of SearchPolyhedralThree or more radiating members BRANCHED Polyhedral Having tool-engaging means or operating handle Having operating mechanism ROTARILY CONNECTED, DIFFERENTIALLY TRANSLATABLE MEMBERS, E.G., TURN-BUCKLE, ETC. Externally threaded actuator THREE OR MORE MEMBERS CONNECTED AT SINGLE LOCUS Spheroidal Having specific connector, etc. Having an underlying grid frame Three-dimensional space-defining | |
