Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1981-05-14
1984-04-17
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29523, 2924352, 29520, B21D 3900, B23P 1102
Patent
active
044425864
ABSTRACT:
A joint is provided between one tube and another tube without the necessity of a heavy thick-walled metal coupling. The joint includes first and an optional second enlarged portions on a first tube with the second enlarged portion near an end of the second tube. A first shoulder is provided between the first enlarged portion and the main body of the first tube. A second annular shoulder is provided at the junction between the first and second enlarged portions. The end of the second tube slips into the first enlarged portion of the second tube and the second tube is then axially compressed so as to form an annular bead which acts against and is contained by the second enlarged portion of the first tube. This axial compression provides both a mechanical interconnection so that the tubes will not axially separate despite fluid pressure or mechanical force, and also provides a fluid tight seal at the annular bead and the second shoulder or second enlarged portion. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
REFERENCES:
patent: 1802538 (1931-04-01), Rych
patent: 2434080 (1948-01-01), Rosa
patent: 2477676 (1949-08-01), Woodling
patent: 2648123 (1953-08-01), Phillips
patent: 3210102 (1965-10-01), Joslin
patent: 3467414 (1969-09-01), Downing
patent: 3942825 (1976-03-01), Balon
patent: 4006524 (1977-02-01), Frank
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