Storage tank isolation system
OwnerJeff Ray Schunkinventor
Life of this patent
Estimating the term…
Abstract
A storage tank isolation system for a storage tank includes a vertical riser attached to a top of the storage tank and having a cover with an aperture and a connecting member extending from a side of the vertical riser. A distal end of the connecting member is parallel to the top of the storage tank and attached to a storage hatch. The storage tank isolation system includes a valve assembly, which includes a stem extending through the aperture in the cover, a valve plate attached to the stem, and a valve seat sealed to the vertical riser at a position below a connection to the connecting member. The valve plate is moves with the stem from an open position in which the valve plate is held within the vertical riser at a position equal to or above the connection to the connecting member and a closed position.
Claims20
A storage tank isolation system for a storage tank, comprising:
- a vertical riser attached to a top of the storage tank and having a cover with an aperture;
- a connecting member extending from a side of the vertical riser, a distal end of the connecting member being parallel to the top of the storage tank, the distal end attached to a storage hatch;
- a valve assembly, comprising:
- a stem extending through the aperture in the cover;
- a valve plate attached to the stem;
- and
- a valve seat sealed to the vertical riser at a position below a connection to the connecting member,
- wherein the valve plate is configured to be moved with the stem from an open position in which the valve plate is held within the vertical riser at a position equal to or above the connection to the connecting member, and a closed position in which the valve plate is on the valve seat to isolate the storage tank.
A storage tank isolation valve assembly configured to isolate a storage hatch from a storage tank, the storage tank isolation valve assembly comprising:
- a vertical riser configured to be attached to a top of the storage tank and having a cover with an aperture;
- a connecting member extending from a side of the vertical riser, a distal end of the connecting member configured to be parallel to the top of the storage tank, the distal end configured to be attached to a storage hatch;
- a valve assembly, comprising:
- a stem extending through the aperture in the cover;
- a valve plate attached to a proximate end of the stem;
- and
- a valve seat sealed to the vertical riser at a position below a connection to the connecting member,
- a lever assembly fixed around the stem on a position above the valve seat and configured to move the stem from an open position in which the valve plate is held within the vertical riser at a position above the connection to the connecting member, and a closed position in which the valve plate is on the valve seat to isolate the storage tank.
A storage tank isolation system for a storage tank, comprising:
- a vertical riser attached to a top of the storage tank and having a cover with an aperture;
- a connecting member extending from a side of the vertical riser, a distal end of the connecting member being parallel to the top of the storage tank, the distal end attached to a storage hatch;
- a valve assembly, comprising:
- a stem extending through the aperture in the cover;
- a valve plate attached to the stem;
- a valve seat sealed to the vertical riser at a position below a connection to the connecting member;
- a fixed portion sealed to the vertical riser at a position above the connection to the connection member;
- and
- a check plate rotatably connected to the fixed portion and configured to be openable so that the stem is passable through the fixed portion,
- wherein the valve plate is configured to be moved with the stem from an open position in which the valve plate is held at a position above the fixed portion and the check plate, and a closed position in which the valve plate is on the valve seat to isolate the storage tank.
Dependencies are inferred from the claim text.