Device for over-pressure protection for a storage tank
AssigneeChart Industries, Inc.
InventorsThomas K. Drube, Brian P. Bostrom, Kristy M. Malecha, Matthew D. Sasse
Life of this patent
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Abstract
A device for over-pressure protection of a tank has a main body defining a main passage with an inlet and an outlet. The main body also defines a release passage branched from the main passage. A shut-off mechanism is movably disposed within the main passage and defines an open position for allowing a liquid to flow from the inlet to the outlet and a closed position for at least partially blocking the flow. Additionally, a plunger is movably disposed within the main body and connects to the shut-off mechanism. The plunger has a weight sufficient to maintain the shut-off mechanism in the open position until pressure in the release passage exceeds a predetermined value.
Claims10
A device for over-pressure protection of a tank during filling with a liquid, comprising:
- a main body defining a main passage with an inlet and an outlet, and defining a release passage branched from said main passage;
- a shut-off mechanism movably disposed within said main passage and defining an open position for allowing said liquid to flow from said inlet to said outlet and a closed position for at least partially blocking said flow, said shut-off mechanism including a paddle rotatably mounted within said main passage;
- and
- a plunger movably disposed within said release passage and connected to said shut-off mechanism for rotating said paddle between said open and closed positions, said plunger having a weight sufficient to maintain said paddle in said open position until pressure in said passage exceeds a predetermined value.
A device for over-pressure protection of a tank during filling with a liquid, comprising:
- a main body defining a main passage with an inlet and an outlet and defining a release passage branched from said main passage;
- and
- a shut-off mechanism having a paddle rotatably mounted within said main passage and being rotatable from an open position that permits liquid flow from said inlet to said outlet and a closed position that blocks most, but not all, of said flow entering said inlet from reaching said outlet while simultaneously directing a portion of said liquid flow from said outlet to said release passage.
Dependencies are inferred from the claim text.