Abstract: It is a common experience to open a container of carbonated beverage. Upon use the opened beverage will quickly lose to carboration and become "flat". This device is for filling a container of carbonated beverage with a gas, under pressure, so as to preserve the carbonation of the beverage before or after use of the carbonated beverage.

Abstract: A filter used in conjunction with a motor driven fan is mounted on the cage which covers the fan blades. The filter has a configuration similar to that of the cage and has a slot extending from its outer periphery to its central area to permit the filter to be slipped over the motor. Drawstrings are sewn into the filter about its outer periphery and are used to secure the filter to the cage. One end of each drawstring is rigidly connected to one of the corners of the slot and the other end of each drawstring has a hook which is hooked onto a bar of the cage to hold the drawstring taut. The cage and filter are disposed on the intake side of the fan so that the air is filtered before it impinges on the fan blades. This prevents the accumulation of dust and dirt on the fan.