Pipe connection with a seal ring satisfying hygienic demands

Details Pipe connection with a seal ring satisfying hygienic demands Pipe connection with a seal ring satisfying hygienic demands

1983-03-15

1986-02-18

Scanlan, Jr., Richard J.

Pipe joints or couplings

Packed

Screw

285212, 285220, 285363, 2853322, 285368, F16L 2102

Patent

active

045709831

ABSTRACT:
The invention relates to pipe connections satisfying hygienic demands, comprising two members which can be screwed together and a seal ring of plastically or elastically deformable material lying therebetween, and the object of the invention is to prevent the seal ring from being carried along and being displaced during tightening resulting in formation of nooks that might give rise to bacterial growth, cleaning problems and risks of contamination. According to the invention this object is achieved in that a first member has a first bore and a larger diameter second bore connected thereby by a Z-shaped transition, while a second member has an oblique end surface, a cross-sectionally triangular interspace being formed between the oblique end surface and a shoulder of the transition to receive the seal ring and to be filled out practically completely by the seal ring when the members are screwed together, and the seal ring may even protrude to some extent into the through hole.

REFERENCES:
patent: 278800 (1883-06-01), Kline
patent: 448765 (1891-03-01), Kaiser
patent: 1137113 (1915-04-01), Bouchard
patent: 1325826 (1919-12-01), Baker et al.
patent: 1368196 (1921-02-01), Peck
patent: 1878195 (1932-09-01), Gisk
patent: 1936552 (1933-11-01), Goss
patent: 2070291 (1937-02-01), McHugh
patent: 2100615 (1937-11-01), Snell
patent: 2487241 (1949-11-01), Hilton

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