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US 5,845,821 AGranted
Simplified unidirectional valve structure
AssigneeChin Ray Industrial Ltd.
InventorChiu-Sung Chou
Life of this patent
Estimating the term…
Abstract
A valve nozzle structure include a valve stem. On the valve stem is a collar flange and along both sides of collar flange is a series of tapered retainer lips. A passage is formed through the valve stem, a flexible valve sleeve is inserted on the tapered retainer lips on one side of the valve stem, and a slit is incised in the valve sleeve, with the slit normally in a sealed state of closure. The foregoing structure permits gas to flowing towards the valve sleeve to travel only in a single direction through the passage.
Claims1
A valve nozzle, comprising:
- a valve stem having a passage extending along an axis from a first end of the valve stem to a second end of the valve stem, and a collar flange formed thereon, the collar flange having a series of tapered retainer lips;
- and
- a flexible valve sleeve having one end positioned on the tapered retainer lips and a second end that extends over and seals the second end of the valve stem, said second end of said valve sleeve having a slit incised therein, said slit being normally in a sealed state of closure except to permit egress of gas flowing through said passage from said first end of the valve stem to the second end of the valve stem.
Dependencies are inferred from the claim text.