Air pump
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United States of America Patent
Stats
-
Oct 31, 2006
Grant Date -
Jun 29, 2006
app pub date -
Dec 29, 2004
filing date -
Dec 29, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An air pump has a casing, a motor assembly, a fan assembly, a faceplate and a sliding valve assembly. The motor assembly is mounted in the casing and has a motor. The fan assembly has a fan housing, an inlet manifold, an inlet plate and a centrifugal impeller. The centrifugal impeller is mounted rotatably in the fan housing and connects to the motor. The sliding valve assembly is hollow, is mounted slidably between the faceplate and the motor assembly and has a rear, a partition and an air passage. The partition extends into the sliding valve assembly. The air passage is formed between the partition and the rear. The air pump inflates when the air passage aligns with in the inlet manifold. The air pump deflates when the air passage aligns with the fan housing.
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