초록 ▼

The vacuum filtration device has a disposable filter funnel and a disposable filtrate receptacle. The funnel and receptacle are used with a reusable base that is connected to a vacuum source. When the receptacle and funnel are mounted on the base the vacuum is applied through a connecting passage to

The vacuum filtration device has a disposable filter funnel and a disposable filtrate receptacle. The funnel and receptacle are used with a reusable base that is connected to a vacuum source. When the receptacle and funnel are mounted on the base the vacuum is applied through a connecting passage to the receptacle to draw the filtrate from the funnel into the receptacle.

대표청구항 ▼

[ I claim:] [1.] A vacuum filtration device comprising:a disposable filtration receptacle for receiving filtrate,a disposable funnel having a first filter therein for receiving the liquid to be filtered,said funnel being disposed above said filtration receptacle and having openings below said first

[ I claim:] [1.] A vacuum filtration device comprising:a disposable filtration receptacle for receiving filtrate,a disposable funnel having a first filter therein for receiving the liquid to be filtered,said funnel being disposed above said filtration receptacle and having openings below said first filter for directing filtrate from said funnel to said filtration receptacle,a reusable base releasably supporting said filtration receptacle and having an opening through which a vacuum may be applied to said base,said base being disposed below said filtration receptacle and being operatively connected to the interior of said filtration receptacle so that the vacuum of said base may be applied to said filtration receptacle to draw liquid from said funnel through said filter into said filtration receptacle, andmeans for preventing the vacuum applied to said base from sucking the filtrate which enters said filtration receptacle into said base.