초록 ▼

A filtration apparatus for brewing coffee, tea or the like therein and allowing a user to directly drink the brewed liquid from the same filtration apparatus. The apparatus comprises a vessel, such as a container or cup, and a double filter assembly installed within the vessel. The double filter ass

A filtration apparatus for brewing coffee, tea or the like therein and allowing a user to directly drink the brewed liquid from the same filtration apparatus. The apparatus comprises a vessel, such as a container or cup, and a double filter assembly installed within the vessel. The double filter assembly comprises a lower filter, an upper filter, and an alignment rod connecting the lower and upper filters together for facilitating the installation of the double filter assembly into the container. The lower and upper filters engage the interior periphery surface of the container for preventing the contents, such as ground coffee beans or tea leaves, in the container from being consumed by the user but allowing the brewed liquid to pass therethrough.

대표청구항 ▼

[ What is claimed is:] [1.] A filtration apparatus for brewing contents therein when hot water is added into the apparatus and allowing a user to directly drink a brewed liquid from the contents, the apparatus comprising:a. a generally cylindrical shaped vessel having a bottom, an upwardly extending

[ What is claimed is:] [1.] A filtration apparatus for brewing contents therein when hot water is added into the apparatus and allowing a user to directly drink a brewed liquid from the contents, the apparatus comprising:a. a generally cylindrical shaped vessel having a bottom, an upwardly extending circumferential sidewall and an upper rim at the top of its circumferential sidewall, the circumferential sidewall having an interior surface and an exterior surface;b. a handle member affixed to said exterior surface of said circumferential sidewall of said cylindrical shaped vessel;c. a double filter assembly including a lower filter unit, an upper filter unit, and an elongated vertical alignment rod connecting the lower and upper filter units in a spaced apart relationship;d. said lower filter unit having a bottom support plate, a lower retaining plate, a lower flexible mesh screen sandwiched between the support and retaining plates, and a circular shaped coil spring wrapped around the outer periphery of the retaining plate, the support plate having a central upwardly protruding hub with inner threads, the support plate also having at least one open section for allowing the brewed liquid to pass through, the retaining plate having a central aperture and a plurality of small apertures surrounding the central aperture for allowing the brewed liquid to pass through, the flexible mesh screen having a central aperture and an outer periphery sidewall extending upwardly, the upwardly protruding hub inserted through the central apertures of the flexible mesh screen and the retaining plate;e. said upper filter unit having an upper flexible mesh screen, an upper retaining plate, and a circular shaped coil spring sandwiched between the mesh screen and the retaining plate, the flexible mesh screen having a central aperture and an outer periphery sidewall extending upwardly, the retaining plate having a central aperture and a plurality of small opening surrounding the central aperture;f. said vertical alignment rod having an upper portion with an upper end and outer screw threads, and a lower portion with a lower end and outer screw threads;g. a lower cylindrical sleeve having inner screw threads threadedly engaged with said outer screw threads on said lower portion of said vertical alignment rod;h. an upper cylindrical sleeve having inner screw threads threadedly engaged with said outer screw threads on said upper portion of said vertical alignment rod;i. said lower end of said vertical rod inserted into said central protruding hub of said support plate of said lower filter unit such that said outer screw threads thereof are further threadedly engaged with said inner screw threads of said protruding hub of said lower support plate, where said lower cylindrical sleeve abuts against said retaining plate of said lower filter unit for securing said retaining plate and said mesh screen to said support plate of said lower filter unit;j. said upper end of said vertical rod inserted through said central apertures of said flexible mesh screen and said retaining plate of said upper filter unit such that said upper cylindrical sleeve abuts against the lower surface of said mesh screen;k. an upper retaining screw nut having inner screw threads threadedly engaged with said outer screw threads on said upper portion of said vertical rod for retaining together said retaining plate, said coil spring and said mesh screen of said upper filter unit; andl. said double filter assembly inserted into said cylindrical shaped vessel such that said lower filter unit is located adjacent to the lowermost portion of said cylindrical shaped vessel and said upper filter unit is located adjacent to the uppermost portion of said cylindrical shaped vessel, where said outer periphery sidewalls of said mesh screens of said lower and upper filter units engage with said interior surface of said circumferential sidewall of said cylindrical shaped vessel and said coil springs expand against said outer periphery sidewalls of said mesh screens to engage said interior surface of said sidewall of said cylindrical shaped vessel for preventing said contents from escaping therebetween;m. whereby said contents is brewed within said vessel and said lower and upper filter units provide double protection to prevent said contents from being consumed by said user.