Safety cap
AssigneeHalliburton Energy Services, Inc.
InventorsDale Eugene Jamison, Kenneth Heidt Matthews
Life of this patent
Estimating the term…
Abstract
A cell cap including a base, a top, a connector, one or more wings between the base and the top, and a lock. The top may engage the base and be moveable relative to the base. The connector may be moveable relative to only one of the base and the top. Each wing may have a first portion engaging the connector and a second portion engaging the cell. When pressure within the cell exceeds pressure outside the cell, the lock may lie in a first position, preventing relative movement between the base and the top. When pressure within the cell does not exceed pressure outside the cell, the lock may lie in a second position, allowing relative movement between the base and the top to cause the connector to move the first portion of the wing, thereby causing the second portion of the wing to move.
Claims10
A cap for a cell, comprising:
- a base;
- a top engaging the base and moveable relative to the base;
- a connector arranged between the base and the top and moveable relative to one of the base and the top;
- one or more wings movably disposed between the base and the top, each wing having a first portion engaging the connector and a second portion engageable with the cell, wherein the one or more wings comprise a fulcrum between the first portion and the second portion;
- and
- a lock lying in a first position when pressure within the cell exceeds pressure outside the cell to prevent relative movement between the base and the top, and lying in a second position when pressure within the cell does not exceed pressure outside the cell to allow relative movement between the base and the top,
- wherein relative movement between the base and the top causes the connector to move the first portion of each wing, thereby causing the second portion of each wing to move, and wherein relative movement between the base and the top causes the first portion of the one or more wings to rotate about the fulcrum in a first direction, which, in turn, causes the second portion of the wing to also rotate about the fulcrum.
Dependencies are inferred from the claim text.