초록 ▼

A disposable vacuum assisted filter funnel for filtering fluids into bottles. The bottle top filter forms a vacuum dependent seal with the mouth of the bottle. When fluid is introduced into the bottle top filter, the evacuated bottle draws the fluid through the filter into the bottle. The bottle top

A disposable vacuum assisted filter funnel for filtering fluids into bottles. The bottle top filter forms a vacuum dependent seal with the mouth of the bottle. When fluid is introduced into the bottle top filter, the evacuated bottle draws the fluid through the filter into the bottle. The bottle top filter lacks a vacuum plenum between the vacuum source and the bottle. The bottle top filter may be manufactured from one molded piece.

대표청구항 ▼

A bottle top filter employing a vacuum source for filtering a fluid and passing the fluid into a bottle, the bottle top filter comprising: a funnel including a receptacle and a tube, the receptacle of said funnel for catching the fluid and directing the fluid into the tube, the tube connected to the

A bottle top filter employing a vacuum source for filtering a fluid and passing the fluid into a bottle, the bottle top filter comprising: a funnel including a receptacle and a tube, the receptacle of said funnel for catching the fluid and directing the fluid into the tube, the tube connected to the receptacle and insertable into the bottle for channeling the fluid from the receptacle into the bottle, a filter support nested within the receptacle, a filter fitted into the receptacle over said filter support and supported by said filter support for filtering the fluid channeled from the receptacle into the tube, a gasket attached to the receptacle for sealing the receptacle to the bottle, said gasket defining a perimeter and a hole, the tube extending through the hole for inserting into the bottle, and a means for providing a direct vacuum conduit for conducting air directly from the bottle to the vacuum source, said direct vacuum conduit lacking a vacuum plenum and incorporated directly into the receptacle, said direct vacuum conduit including an egress port and an ingress port, the egress port positioned outside the perimeter of said gasket for connecting said direct vacuum conduit to the vacuum source, the ingress port positioned inside the hole of said gasket for drawing off air from the bottle, said funnel and said direct vacuum conduit forming a single seamless molded piece, so arranged to provide means for connecting the vacuum source to said direct vacuum conduit and sealing said funnel to the bottle by means of said gasket for causing air to be drawn from the bottle directly into the vacuum source through the direct vacuum conduit, and, further, after introducing the fluid into said funnel, for causing the fluid to be drawn across said filter through the tube and into the bottle.