in Valves
OwnerToby Priestlyinventor
Life of this patent
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Abstract
This invention relates to a valve comprising a housing having first and second apertures for the ingress and egress of fluid into/from a passageway located within the housing extending indirectly from the first to the second aperture. The passageway forms an air-lock. The valve further comprises at least one bleed valve for allowing fluid out of the passageway at a rate slower than fluid is able to enter one of the apertures. A liquid entering one of the apertures is prohibited from passing along the passageway to the other of the apertures until substantially all air within the valve has bled out of the bleed valve.
Claims23
A valve, said valve comprising:
- a housing having first and second apertures for the ingress and egress of fluid into/from a passageway located within the housing, said passageways extending indirectly from the first to the second aperture and comprising means for creating an air-lock;
- the valve further comprising at least one bleed means for allowing fluid to bleed out of the passageway at a rate slower than fluid is able to enter one of the apertures;
- and
- wherein a liquid entering one of the apertures is prohibited from passing along the passageway to the other of the apertures until substantially all air within the valve has bled out of the bleed means.
A valve, said comprising a spring biased stopper normally biased into a sealing position and a buoyant actuator attached to the stopper, such that when the valve is submerged the actuator rises moving the stopper out of the sealing position.
A valve, said valve comprising a chamber within which is a buoyant ball normally seated in a sealing position with an aperture, wherein when the valve is submerged the ball floats within the chamber out of the sealing position.
Dependencies are inferred from the claim text.