Inflator

An inflator, comprising:

• an inflator housing accommodating a pressurized medium;
• a diffuser portion attached to an opening of the inflator housing and provided with at least one gas discharging port, formed in a peripheral wall of the diffuser portion, for discharging the pressurized medium upon actuation of the inflator, the diffuser portion defining, therein, a flow path that allows the pressurized medium to flow from the inflator housing to the at least one gas discharging port and a space in constant fluid communication with an outside of the diffuser portion through the at least one gas discharging port prior to and subsequent to the actuation of the inflator;
• a filter that covers the at least one gas discharging port, such that the pressurized medium is discharged from the at least one gas discharging port through the filter;
• a rupturable plate that seals the flow-path, a peripheral portion of the rupturable plate being attached to the diffuser portion and an entire remaining portion of the rupturable plate being apart from any of elements of the inflator;
• and
• rupturing means provided inside the space and directly opposing the rupturable plate for rupturing the rupturable plate,
• wherein the pressurized medium is discharged through the diffuser portion without being heated.

An inflator, comprising:

• an inflator housing accommodating a pressurized medium and defining an opening;
• a diffuser portion that covers the opening and is provided with at least one gas discharging port, formed in a peripheral wall of the diffuser portion, for discharging the pressurized medium upon actuation of the inflator, such that pressure inside the diffuser portion is at an atmospheric pressure prior to an activation of the inflator, the diffuser portion defining therein a flow-path that allows the pressurized medium to flow from the inflator housing to the at least one gas discharging port;
• a rupturable plate that seals the flow-path, a peripheral portion of the rupturable plate being attached to the diffuser portion and an entire remaining portion of the rupturable plate being apart from any of elements of the inflator;
• rupturing means, that directly opposes the rupturable plate, for rupturing the rupturable plate;
• and
• a filter that covers the at least one gas discharging port, such that the pressurized medium is discharged from the at least one gas discharging port through the filter,
• wherein the pressurized medium is discharged through the diffuser portion without being heated.