Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1978-08-25
1980-02-26
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
2924352, 292835, 29788, 113121R, B21D 3900, B23P 1102
Patent
active
041898249
ABSTRACT:
Disclosed are a closure construction for a container, such as a steel drum, embodying a flange member having an internally threaded opening adapted to be closed by an externally threaded cap, the flange member having an integral flange portion that is firmly secured in an offset portion of the container wall by means of spaced protuberances at the outer edge of the flange portion that are tightly engaged by the offset portion of the container wall, the protuberances being formed in the flange portion while the container wall adjacent the flange portion is secured against deformation, so that formation of the protuberances causes deformations of the container wall at and around the protuberances which firmly lock the flange member in place by engagement with the protuberances. Also disclosed are a method of making the closure construction, and apparatus for making it.
REFERENCES:
patent: 1947425 (1934-02-01), Rieke
patent: 2144701 (1939-01-01), Campbell et al.
patent: 3506286 (1970-04-01), Defauw
patent: 3791021 (1974-02-01), Bauman
patent: 3894331 (1975-07-01), Ragettli
patent: 4000708 (1977-01-01), Hardt
Dillon Glenn W.
Lindell Albert H.
Moon Charlie T.
Stock Equipment Company
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