Method and valve for preventing unauthorized access

A valve system for controlling fluid flow, comprising:

• a valve having a valve housing and a flow control element which, in a first state, prevents fluid flow through said valve housing in a specified direction, and which, in a second state allows fluid flow through said valve housing in the specified direction;
• a dedicated actuator means sealed within said valve housing and adapted to control operation of said flow control element only in response to a signal peculiarly dedicated to said dedicated actuator means;
• and
• an external control means that provides said signal from an outside of the valve housing to operate said flow control element to be reversibly switched to the second state.

A method for preventing unauthorized filling access to the interior of a fluid container having an inlet port, while allowing authorized filling access thereto, the method comprising:

• sealing said port with a device provided by,
• providing a valve housing;
• providing a flow control element which, in a first state, prevents fluid flow through said valve housing in a specified direction, and which, in a second state, allows fluid flow through said valve housing in said specified direction;
• and
• sealing dedicated actuator means within one of the valve housing and the container to which said valve housing is attached, the dedicated actuator means selectively moves said flow control element from the first state to the second state only in response to a signal peculiarly dedicated to said dedicated actuator means,
• wherein said dedicated actuator means is operated by,
• providing said signal from an outside of the one of the valve housing and the container.

A check valve for controlling fluid flow therethrough, comprising:

• a valve housing;
• a flow control element which, in a first state, allows flow through said valve housing in one direction but not in an opposite direction;
• a dedicated actuator means sealed within the valve housing and adapted to cause the flow control element to be reversibly switched to a second state thereby allowing fluid flow through said valve housing in said opposite direction only in response to a signal peculiarly dedicated to said dedicated actuator means;
• and
• a dedicated external control device that provides said signal to control said dedicated actuator device from an outside of said valve housing to switch said flow control element to the second state by operating said dedicated actuator device.

A valve for controlling fluid flow therethrough into a container, comprising,

• a valve housing;
• a flow control element which, in a first state, prevents fluid flow through said valve housing in a specified direction, and which, in a second state, allows fluid flow through said valve housing in said specified direction;
• and
• dedicated actuator means sealed within one of the valve housing and the container to which said valve housing is attached, the dedicated actuator means selectively moves said flow control element from the first state to the second state only in response to a signal peculiarly dedicated to said dedicated actuator means.

A valve for controlling fluid flow therethrough into a container, comprising,

• a valve housing;
• a flow control element which, in a first state, prevents fluid flow through said valve housing in a specified direction, and which, in a second state, allows fluid flow through said valve housing in said specified direction;
• dedicated actuator means sealed within one of the valve housing and the container to which said valve housing is attached, the dedicated actuator means having a motor that selectively moves said flow control element from the first state to the second state only in response to a signal peculiarly dedicated to said dedicated actuator means;
• and
• external control means that provides said signal to operate said motor from an outside of the one of the valve housing and the container.