Means for interlocking overlapping sheet material

Details Means for interlocking overlapping sheet material Means for interlocking overlapping sheet material

1983-11-18

1986-08-26

Moon, Charlie T.

Metal working

Means for forming clench-tongue

29432, 29509, 29521, 29715, 292435, B23P 1700

Patent

active

046074180

ABSTRACT:
A device for fastening superimposed sheets of metal or the like together by punching corresponding portions of the sheets into displaced positions relative to the adjacent areas of the sheets, then spreading one displaced portion of one sheet, under pressure, into interlocking engagement with the adjacent areas of the other sheet while retaining the corresponding displaced portion of the other sheet from spreading under the same pressure.

REFERENCES:
patent: 3022687 (1962-02-01), Richards
patent: 3934327 (1976-01-01), Hafner
patent: 4173815 (1979-11-01), Lux et al.
patent: 4184396 (1980-01-01), Hafner

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