Process for closing the evaporation chamber of an electrically h

Details Process for closing the evaporation chamber of an electrically h Process for closing the evaporation chamber of an electrically h

1991-02-12

1992-01-14

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

29243517, 29525, 38 88, 38 93, B23P 1100

Patent

active

050798235

ABSTRACT:
A process for closing an evaporation chamber of an electrically heated steam iron having a sole member, an evaporation chamber fixedly connected to the sole member and closable by a lid, said evaporation chamber having a vertical steam chamber wall with a top surface on which rivets with a substantially frustoconical rivet base are cast, and the lid having rivet holes associated with each rivet, the cross-section of each rivet hole being equal to or greater than the cross-section of the base of the rivet associated with the rivet hole, the process including the steps of: placing the lid on the top surface of the steam chamber wall, subjecting a rivet-hole edge portion of each rivet hole to pressure of a ring stamp, increasing the pressure of the ring stamp until the flow limit of the lid material is exceeded, this flow limit being lower than that of the material of the sole member, releasing the ring stamp after permanent deformation of the rivet-hole edge portion, clinching the rivet, and deforming the free end of each rivet to join the lid to the sole member.

REFERENCES:
patent: 1776947 (1930-09-01), Kocourek
patent: 2500091 (1950-03-01), Parr
patent: 3055528 (1962-09-01), Seifert
patent: 4658520 (1987-04-01), Henneberger et al.
patent: 4995177 (1991-02-01), Louison et al.

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