A mechanical valve assembly for the control of a gas flow to a gas appliance, the mechanical valve assembly comprising: a housing; a gas inlet port associated with the housing; a gas outlet port associated with the housing; a timer-controlled valve operable to open and close a gas flow between the inlet port and outlet port; and a manually-operated emergency shut-off valve positioned between the inlet port and the outlet port, ahead of the timer-controlled valve relative to a direction of the gas flow through the mechanical valve assembly.

This disclosure describes an apparatus for extinguishing a flame of a candle in a candle container. The apparatus includes a base and a retractable lid positioned around an opening of the container. The lid may include two halves that are moved between open and closed positions. Control arms cause the retractable lid to close. A mechanical timer controls opening of the lid and a countdown such that, after expiration of a predetermined time period, the lid is closed. A manual over-ride causes the lid to close manually, independent of the timer. Impact sensors are configured to cause the control arms to release and close the lid responsive to a detection of impact or disturbance. The sensors may be positioned around the base such that when an impact is sensed by one sensor, each of the sensors is activated to release the lid and enclose the opening to extinguish the flame.

This disclosure describes an apparatus for extinguishing a flame of a candle in a candle container. The apparatus includes a base and a retractable lid positioned around an opening of the container. The lid may include two halves that are moved between open and closed positions. Control arms cause the retractable lid to close. A mechanical timer controls opening of the lid and a countdown such that, after expiration of a predetermined time period, the lid is closed. A manual over-ride causes the lid to close manually, independent of the timer. Impact sensors are configured to cause the control arms to release and close the lid responsive to a detection of impact or disturbance. The sensors may be positioned around the base such that when an impact is sensed by one sensor, each of the sensors is activated to release the lid and enclose the opening to extinguish the flame.

This disclosure describes an apparatus for extinguishing a flame of a candle in a candle container. The apparatus includes a base and a retractable lid positioned around an opening of the container. The lid may include two halves that are moved between open and closed positions. Control arms cause the retractable lid to close. A mechanical timer controls opening of the lid and a countdown such that, after expiration of a predetermined time period, the lid is closed. A manual over-ride causes the lid to close manually, independent of the timer. Impact sensors are configured to cause the control arms to release and close the lid responsive to a detection of impact or disturbance. The sensors may be positioned around the base such that when an impact is sensed by one sensor, each of the sensors is activated to release the lid and enclose the opening to extinguish the flame.

This disclosure describes an apparatus for extinguishing a flame of a candle in a candle container. The apparatus includes a base and a retractable lid positioned around an opening of the container. The lid may include two halves that are moved between open and closed positions. Control arms cause the retractable lid to close. A mechanical timer controls opening of the lid and a countdown such that, after expiration of a predetermined time period, the lid is closed. A manual over-ride causes the lid to close manually, independent of the timer. Impact sensors are configured to cause the control arms to release and close the lid responsive to a detection of impact or disturbance. The sensors may be positioned around the base such that when an impact is sensed by one sensor, each of the sensors is activated to release the lid and enclose the opening to extinguish the flame.