Cartridge assembly for valve
AssigneeBS&B Safety Systems, Inc.
InventorsGeof Brazier, Arthur Dubbeldam, Peter Dubbeldam
Life of this patent
Estimating the term…
Abstract
A cartridge assembly for a valve is disclosed. The cartridge assembly includes a cartridge containing an activation component. The cartridge and activation component are configured to be replaceable as a unit. The activation component prevents the valve from either opening or closing until either a predetermined pressure is exerted on the valve or a predetermined temperature is experienced by the activation component. The cartridge may include any of a variety of activation component types, such as buckling pins, tensile pins, shear pins, springs, or fusible alloys, either individually or in combination to control the valve opening or closing.
Claims82
A pressure relief device for a system containing a pressurized fluid, comprising:
- a rotatable plug engageable with the system to expose the plug to the pressurized fluid, the fluid acting on the plug to rotate the plug from a closed position to an open position;
- an activation component operatively connectible to the plug, the activation component configured to prevent the plug from rotating until a predetermined pressure is exerted on the plug;
- a cartridge having a hollow body with a first and second end, the hollow body substantially enclosing the activation component so that the cartridge and the activation component are replaceable without any contact with the activation component and without replacing the plug;
- and
- a support member configured to receive the cartridge to operatively connect the activation component with the plug.
A cartridge assembly for a valve containing a member movable between a first position and a second position, comprising:
- an activation component operatively connectible with the valve to prevent the member from moving from the first position to the second position until a predetermined pressure is exerted on the valve;
- a cartridge having a hollow body with a first and second end, the hollow body substantially enclosing the activation component so that the cartridge and the activation component are replaceable as a unit without any contact with the activation component and without replacing the member;
- and
- a support structure engageable with the cartridge to operatively connect the activation component with the valve.
A cartridge for a valve operable between a first configuration and a second configuration, comprising:
- an activation component operatively connectible with the valve to maintain the valve in the first configuration until a predetermined pressure is exerted on the valve to force the valve toward the second configuration;
- and
- a hollow body having a first and second end, the hollow body substantially enclosing the activation component so that the cartridge is replaceable without any contact with the activation component and without replacing a movable valve component,
- wherein the activation component is a buckling pin configured to buckle when the predetermined pressure is exerted on the valve.
Dependencies are inferred from the claim text.