Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1978-01-05
1979-07-10
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29509, 29781, 72 50, 138150, B23P 1900, B23P 1904
Patent
active
041603125
ABSTRACT:
An apparatus and method for continuously forming multi-layer metal pipe from at least two elongated sheets of metal. One sheet is impressed with longitudinal corrugations in a rolling device and the second sheet, being uncorrugated, is then positioned contiguously upon the first, forming a multi-layer sheet. One or more removable modules is mounted in the rolling device to accurately align and guide the second sheet into position upon the first. Complementary portions of a single corrugation are then formed in the marginal edges of the multi-layer sheet and the sheet is spiralled into adjacent, helical convolutions in a pipe forming device, with the uncorrugated sheet forming the pipe interior. The adjacent convolutions are joined in a helical seam in the single corrugation by a seaming device located in the pipe forming device. In the primary embodiment of the invention, the seam is formed as a double lock seam along a neutral axis of the single corrugation.
REFERENCES:
patent: 3263321 (1966-08-01), Lombardi
patent: 3474514 (1969-10-01), Lombardi
patent: 3487537 (1970-01-01), Lombardi
patent: 3694892 (1972-10-01), Hale
LandOfFree
Method and apparatus for making multi-layer spiral pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for making multi-layer spiral pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making multi-layer spiral pipe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-735352