Metal working – Method of mechanical manufacture – Gas and water specific plumbing component making
Patent
1991-04-12
1992-09-29
Cuda, Irene
Metal working
Method of mechanical manufacture
Gas and water specific plumbing component making
29407, 29517, 29705, B23P 1100
Patent
active
051505193
ABSTRACT:
A process apparatus for the manufacture of a permanent, tight pipe joint between a smooth pipe end and a press fitting surrounding it, includes the latter being pressed positively and non-positively onto the inserted pipe end by means of a pressing tool applied to it. The process is characterized by the fact that, after the application of the pressing tool, the pipe already inserted into the press fitting, or the press fitting pushed onto the end of the pipe, is exposed to an adjustable axial force by means of an apparatus located on the pressing tool, and the closing movement of the jaws for the pressing of the press fitting can only be triggered when this force has reached a value which is greater than a specified adjustable response level.
REFERENCES:
patent: 3114566 (1963-12-01), Coberly et al.
patent: 3343252 (1967-09-01), Reesor
patent: 3404906 (1968-10-01), Hutton
patent: 3916502 (1975-11-01), Bagnulo
patent: 4026006 (1977-05-01), Moebius
patent: 4142744 (1979-03-01), Bennynck
patent: 4524505 (1985-06-01), Conner
patent: 4850096 (1989-07-01), Gotoh et al.
Brochure published by Mannesmann Edelstahlrohr GmbH, 1988 Edition, entitled, "Mannesmann Pressfitting-System/Heizung".
Cuda Irene
Mannesmann Aktiengesellschaft
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