Tubular body with a lap side seam

Details Tubular body with a lap side seam Tubular body with a lap side seam

1973-03-28

1977-07-05

Van Horn, Charles E.

Receptacles

Outlet or junction box type

Sectional receptacle

138156, 138170, 220 81R, 156218, B65D 116

Patent

active

040334740

ABSTRACT:
The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the body blank, bending the other parallel marginal edge portion of the blank to form a crease thereon, rolling the blank into tubular form to place the adhesively-coated marginal edge portion and the creased marginal edge portion in an overlapping, facing position, and imbedding the creased marginal edge portion into a portion of the adhesive on the one marginal edge portion to bury the raw metal edge, the imbedding being achieved by compressing the overlapped marginal edge portions together to assemble the lap side seam of the tubular body.

REFERENCES:
patent: 1332932 (1920-03-01), Sussman
patent: 2120007 (1938-06-01), Tear
patent: 3066063 (1962-11-01), Ecklund et al.
patent: 3411542 (1968-11-01), Walsh et al.
patent: 3411690 (1968-11-01), Walsh et al.
patent: 3419183 (1968-12-01), Khoury
patent: 3437063 (1969-04-01), Battersby
patent: 3452694 (1969-07-01), Ratzer
patent: 3700513 (1972-10-01), Haberhauer et al.

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