Joint coupling
Patent 5439309 Issued on August 8, 1995. Estimated Expiration Date: 
April 20, 2013. 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.
April 20, 2013. 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 ReferencesInventorApplicationNo. 048897 filed on 04/20/1993US Classes:403/316, Blocker for assembled joint retainer403/317, Blocker keeper403/340Mirror imagesExaminersPrimary: Bertsch, Richard A.Assistant: Richman, Howard R. Attorney, Agent or FirmForeign Patent References
International ClassG08B 023/00AbstractA joint coupling for axially connecting together a first joint and a second joint, which includes first and second joints each having a complementary member sized and shaped so that, when the joints are properly aligned, the complementary members form an overlap structure which is effectively a continuation of the first joint or the second joint, and a sleeve which is slidable over the overlap structure to secure the joint coupling. The inside surfaces of the sleeve are tapered, as are the outside surfaces of the overlap structure such that when the sleeve is slid completely over the overlap structure, the inside surfaces of the sleeve make full contact with the outside surfaces of the overlap structure to firmly secure the joint coupling. Two or more joints may be joined at any desired relative orientation by use of a hub which has complementary elements which can accommodate the complementary members of the joints. The joint couplings can be readily used to create complicated structures of virtually any desired shape. | |
