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US 6,296,016 B1Granted
Double obturator valve
AssigneeBTR plc
InventorsChristopher Jack Parker, Peter Alfred Gorman
Life of this patent
Estimating the term…
Abstract
A valve, for example a tapered plug valve, having two obturators each rotatable between open and closed positions. The angle between the rotational axes is at least about 90° and may be 180°. The handles used to rotate the obturators are preferably on the same side of the valve.
Claims18
A valve comprising:
- a valve body having two standard parallel flanges for attachment to pipework and a passageway therethrough for flow of medium, said valve body including two tapered bores intercepting said passageway, the axes of the bores extending transversely of the passageway;
- two obturators comprising tapered plugs being located one in each of the bores, each plug being rotatable about the restive axis of the bore between a closed position wherein said passageway is blocked and an open position wherein said passageway is unblocked;
- wherein the axis of one of said two obturators and associated bore is arranged at an angle of at least about 90° with respect to the axis of the other of said two obturators and associated bore;
- wherein the flanges are spaced apart by a longitudinal distance which is the same as a standard distance for a valve comprising one obturator and associated bore;
- and
- wherein the relative orientations of said two obturators and associated bore allows said two obturators and associated bore to occupy a more compact volume than if said axes of said two obturators and associated bore were oriented at the same angle.
3 more elements
A valve comprising:
- a) a valve body including:
- a passageway therethrough for flow of medium;
- first and second tapered bores intercepting said passageway, said first and second bores having first and second bore axes, respectively, each of said first and second bore axes extending transversely of the passageway;
- b) first and second tapered plugs disposed in said first and second bores, respectively, each of said plugs including a port defined therein, a narrow end and a wide end opposite said narrow end, wherein each of said first and second plugs is rotatable about a respective said bore axis between a closed position wherein said passageway is blocked and an open position wherein said passageway is unblocked;
- c) first and second handles coupled with and operable to rotate said first and second plugs, respectively;
- d) wherein said first bore axis is arranged at an angle of at least about 90° with respect to said second bore axis;
- and
- e) wherein said first and second handles are located on the same side of said valve body.
5 more elements
Dependencies are inferred from the claim text.