Fluid handling – Line condition change responsive valves – Direct response valves
Reexamination Certificate
2011-07-19
2011-07-19
Rivell, John (Department: 3753)
Fluid handling
Line condition change responsive valves
Direct response valves
C137S540000, C137S543150
Reexamination Certificate
active
07980266
ABSTRACT:
A one-way soffit vent has an upstream valve seat and a downstream vented cover having a boss extending in the upstream direction. A valve disk is reciprocally mounted on the boss and biased against the valve seat.
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Brown Macade
Dundas Jafine Inc.
Rivell John
LandOfFree
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