Spherical pipe switch with single channel or double channel cock
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United States of America Patent
Stats
-
Dec 14, 1993
Grant Date -
N/A
app pub date -
May 4, 1992
filing date -
May 7, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe switch includes a housing with a cock having at least one straight passageway for selectively connecting cylindrical conduits. In order to avoid a geometric joint in both rotational directions without requiring complicated refinishing processes while yet keeping the cross section of the passageway constant, the circumferential surface of the cock and the housing inner surface are designed as coextensive freely-shaped surfaces with such a curvature that the ports of the passageway and the housing conduits are at least essentially coincidental plane sectional surfaces in both rotational positions of the cock.
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