发明名称 Ink writing implement
摘要 An ink writing implement comprises a retainer for a floating weight arranged in the axial bore of a retaining box and having an annular planar surface facing a planar shoulder therein. A venting groove and capillary grooves pierce the surface and the retainer includes a spiral ink flow path along the circumference thereof. A floating weight is guided for axial movement in the axial bore of the retainer and the planar shoulder forms an abutment for a front end of the floating weight. The retainer bore is long enough to accommodate the axial movement of the floating weight and this weight defines an axially extending venting channel with the retainer. A front retainer end is cylindrically recessed and comprises a surface defining an ink flow control path in the axial bore of the retaining box, which connects the venting groove and channel with the spiral ink flow path. Because of the length of the retainer in the retaining box, the height of the ink column in the box is considerably shortened so that the capillary forces required for the control of the ink flow may be relatively small.
申请公布号 US4461591(A) 申请公布日期 1984.07.24
申请号 US19820346621 申请日期 1982.02.08
申请人 MUTSCHLER, OTTO 发明人 MUTSCHLER, OTTO
分类号 B43K5/00;B43K8/18;(IPC1-7):B43K5/16;B43K1/06;B43K1/10 主分类号 B43K5/00
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