Method of making an interlocking pipe ball joint

Details Method of making an interlocking pipe ball joint Method of making an interlocking pipe ball joint

1977-10-07

1979-05-01

Gilden, Leon

Metal working

Method of mechanical manufacture

Assembling or joining

29523, 2853825, B23P 1100

Patent

active

041516320

ABSTRACT:
A ball joint for connecting lengths of pipe particularly for use in automotive exhaust systems. One end of a first pipe is enlarged to an increased diameter to form a female portion into which one end of a second pipe is received. A tubular sleeve is inserted into said first pipe and connected thereto as by welding. The sleeve and the female portion together define an annular, axially elongated and radially narrow passage receiving said one end of said second pipe. The first and second pipes and the sleeve are together placed in a die, and the overlapping ends are spun radially outwardly by an internal, expansible arbor or the like to form a generally spherical, interlocking pipe ball joint.

REFERENCES:
patent: 604863 (1898-05-01), Hoyer
patent: 2479702 (1949-08-01), Rood
patent: 2949319 (1960-08-01), Hutchins
patent: 3002269 (1961-10-01), Hopkins
patent: 3434194 (1969-03-01), Whittalden et al.
patent: 3555831 (1970-01-01), Pogonowski

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