| 摘要 |
1,110,513. Coffee filter, Internally ribbed filter funnel. BUNN-O-MATIC CORPORATlON. 31 Oct., 1966 [1 Feb., 1966], No. 48692/66. Headings B1D and B1X. [Also in division A4] A one-piece thermoplastic frusto-conical funnel, 10, has a bottom, 16, inclined to a central discharge aperture, 18, and ribs, 17, integral with the upper side of said bottom and extending radially from the discharge apperture for underlying the filter paper, 12, and spacing it from the bottom, the conical sides of the funnel being stepped (see 27) so as to limit contact with the filter paper. The ribs may be of varying lengths and the central discharge aperture may be provided with an integral annular drip lip. |
