发明名称 |
UNION FOR FLOW & RETURN PIPES OF PANEL RADIATORS |
摘要 |
A method of producing a union for panel radiators comprises upsetting an elongated tubular member (10, Figures 3, 4) so as to form a spherical hollow-body part merging into a neck part. The opening (20b) in the hollow-body part is closed by a metal round (3) being welded to it. One side of the hollow-body part is formed with a facet 5 which will subsequently be operative for the engagement of a welding electrode for press welding. The neck part (21) is formed with an internal screwthread 6, and that side of the spherical hollow-body part which is opposite the facet 5 is drilled to provide an opening 7 for connection of the radiator. <IMAGE> |
申请公布号 |
GB8526747(D0) |
申请公布日期 |
1985.12.04 |
申请号 |
GB19850026747 |
申请日期 |
1985.10.30 |
申请人 |
BERG VERWALTUNGSGES MBH & CO KG, HANS |
发明人 |
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分类号 |
B21D53/02;B23P15/00;B23P15/26;F24H9/12;F28F9/26;(IPC1-7):F28F/ |
主分类号 |
B21D53/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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