Two-way pipe switch
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United States of America Patent
Stats
-
Mar 20, 1990
Grant Date -
N/A
app pub date -
Apr 13, 1989
filing date -
Apr 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-way pipe switch for bulk material includes a housing with an inlet port, a coaxial first outlet port connectable to the inlet port to define a first flow path and a second outlet port connectable to the inlet port to define a second flow path which rectangularly branches off the first flow path. Accommodated in the housing is a cock which is rotatable by about 120.degree. from a first position into a second position for selectively connecting the inlet port with the first and second outlet ports. The housing has a cylindrical inner wall which between the inlet port and the first outlet port defines a first area and between the inlet port and the second outlet port defines a second area, with each area being provided with a pocket-like recess facing the respective outlet port and including edges which cooperate with the respective end face of the cross piece in such a manner that bulk material particles are prevented from penetrating the respective sealing gaps. A third area of the inner housing wall extending between the first and second outlet ports is provided with bores through which compressed air is introduced for preventing penetration of bulk material particles also in this area.
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