Tube coupling
Patent 4111575 Issued on September 5, 1978. Estimated Expiration Date: 
January 10, 1997. 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.
January 10, 1997. 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 1309375 1836348 2327990 2710207 InventorApplicationNo. 05/758164 filed on 01/10/1977US Classes:403/104, Plural distinct positions248/413, Set screw actuated403/373, Clamped members403/377For telescoping membersExaminersPrimary: Kundrat, Andrew V.Attorney, Agent or FirmInternational ClassesF16B 7/14 (20060101)F16B 7/00 (20060101) Foreign Application Priority Data1976-06-11 JPAbstractTube coupling for coupling an inner and an outer tube, wherein the inner tube extends into the outer tube and projects out of the terminal end of the outer tube: a receiving member with one sleeve portion that receives the terminal end of the outer tube to be coupled and another sleeve portion around the inner tube; a split tightening ring is held inside the receiving member, is anchored in the receiving member against shifting around in it and is squeezable against the outside of the inner tube; the split tightening ring has tabs that are squeezed together to squeeze the ring against the inner tube. | |
