US3306267A - Ink writing implement - Google Patents

Ink writing implement Download PDF

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Publication number
US3306267A
US3306267A US477897A US47789765A US3306267A US 3306267 A US3306267 A US 3306267A US 477897 A US477897 A US 477897A US 47789765 A US47789765 A US 47789765A US 3306267 A US3306267 A US 3306267A
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US
United States
Prior art keywords
ink
pen
point
central passage
writing implement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US477897A
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English (en)
Inventor
Matsumoto Hiroyuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nihon Bungu Co Ltd
Original Assignee
Dai Nihon Bungu Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nihon Bungu Co Ltd filed Critical Dai Nihon Bungu Co Ltd
Application granted granted Critical
Publication of US3306267A publication Critical patent/US3306267A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/003—Capillary nibs

Definitions

  • FIG.8 FIG.10
  • the present invention relates to an improved ink writing implement. This implement con-sists of a conical plastic pen point fitted to a pen core. f
  • a replaceable conical plastic pen point is fitted to a pen core and receives ink from an ink chamber through a capillary ink flow control passage within the pen core.
  • the pen core has a finned accumulator to retain any excess ink which may llow through the passage.
  • ink is available to the pen point from both the capillary passage and the finned accumulator.
  • FIGURE 1 is an elevational view, showing the Writing implement in section to expose the interior of the embodiment of the present invention
  • FIGURE 2 is an enlarged elevational view of the section designated A-A in FIG. l;
  • FIGURE 3 is a view of the section designated B-B in FIGURE 2;
  • FIGURE 4 is an enlarged view of the section designated C-C in FIG. 2;
  • FIGURES 5 yand 6 are enlarged elevational cut-away and sectional views, respectively, of another embodiment of the pen point of the present invention.
  • FIGURES 7 and 8 are enlarged elevational cut-away and sectional views, respectively, of a third embodiment of the pen point of the ⁇ present invention.
  • FIGURES 9 and 10 are enlarged elevational cut-away and sectional views, respectively, of a fourth embodiment of the pen point of the present invention.
  • pen core 1 has a central passage 21 and fins 12.
  • the fins 12 receive excess ink from the central passage 21 through slots 22.
  • the slots 22 and the fins 12 serve as an accumulator for excess ink.
  • Conical pen point 2 is preferably made of a plastic such as nylon Delrin (T M. of Du Pont), or the like. This point 2 is fitted to the pen core 1 by means of Va tubular projection 4 which mates with a receptacle 3 in the pen core 1, see FIG. 3.
  • a central passage 5 in point 2 communicates with .a plurality of holes y6 in the point which supply ink to a circular circumferential channel 7 on the surface of the point.
  • the circular channel 7 connects with a plurality of longitudinal ink channels 8 which supply ink to the writing tip of the point.
  • Ink is stored in a reservoir or cartridge 9 on one end of the pen core 1.
  • a core rod 10 having a capillary channel 11 is located in the central passage 21 of the pen ICC core 1.
  • Outer jacket parts 29 and 30 are screwed onto threaded portions of the pen core.
  • ink from the reservoir 9 flows through the capillary channel 11 in the core rod 10 and through the passage 21 of the pen core 1 to the central passage 5 of the conical pen point 2. From the central passage 5 the ink flows through holes 6 to the circular channel 7 and thence down longitudinal channels 8 to the Writing tip of the coni-cal point.
  • Controlled ink ow is achieved by means of the capillary channel 11 in the core rod 10. Excess ink is retained by the fins 12 to provide point 2 with a constant supply of ink irrespective of the quantity of ink in the reservoir 9, Thus, ink is instantly available to the point at the proper flow rate without danger of blotting or skipping.
  • the pen point 2 and the cores 1 are preferably separately injection molded from plastic in large quantities.
  • a centra-l passage 13 communicates with a plurality of slots 14 arranged in a star-shaped pattern.
  • the slots 14 terminate at a solid tip 23 which holds the point together.
  • a sheath 15 of closely fitted material preferably a plastic, directs the ink through the slots 14 to the exposed writing tip 23.
  • a passage 24 communicates with radial holes 25 which supply surface channels 26.
  • a sheath 16 of plastic is closely fitted to the point to direct ink down the surface channels 26 to the exposed writing tip 27.
  • a central passage 17 communicates with a plurality of radial holes 18 which supply surface channels 19 which extend circumferentially a-s well as longitudinally.
  • a sheath 20 of plastic is tightly fitted to the point to direct ink through the surface channels 19 to the exposed writing tip 28.
  • the sheath serves to point.
  • An ink writing implement including a tubular pen core with a central passage, an ink reservoirfitted to one end of the pen core and in communication with the cent-ral passage, and a pen point entirely of molded plastic fitted to the other end of the pen core, said pen point having a plurality of surface ink channels and a plurality of internal passages which connect the central passage of the pen core with the surface ink channels wherein said central passage contains a core rod having a capi-llary ink flow control channel.
  • ink writing implement as claimed in claim 1 wherein the ink channels of the pen point are a plurality of slots which radiate from a central passage within the point to the surface of the pen point, said pen point havprevent ink from drying on the ing a closely fitted thin outer sheath which leaves exposed the writing tip of the pen point.

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  • Pens And Brushes (AREA)
US477897A 1964-08-13 1965-08-06 Ink writing implement Expired - Lifetime US3306267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1964063524U JPS4212348Y1 (zh) 1964-08-13 1964-08-13

Publications (1)

Publication Number Publication Date
US3306267A true US3306267A (en) 1967-02-28

Family

ID=31796714

Family Applications (1)

Application Number Title Priority Date Filing Date
US477897A Expired - Lifetime US3306267A (en) 1964-08-13 1965-08-06 Ink writing implement

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US (1) US3306267A (zh)
JP (1) JPS4212348Y1 (zh)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507600A (en) * 1968-01-18 1970-04-21 Parker Pen Co Solid plastic nib
US3518019A (en) * 1967-03-28 1970-06-30 Kinichi Nakamura Synthetic resin penpoint
US3614248A (en) * 1967-07-25 1971-10-19 Katsumi Otsuka Pen wick made of synthetic resin
US3977798A (en) * 1973-12-22 1976-08-31 Koh-I-Noor Rapidograph, Inc. Tubular writing pen
FR2307667A1 (fr) * 1975-04-14 1976-11-12 Parker Pen Co Instrument pour ecrire a structure modulaire
US4019243A (en) * 1974-12-20 1977-04-26 Koh-I-Noor Rapidograph, Inc. Method for forming a tubular writing pen
US4207012A (en) * 1975-09-25 1980-06-10 Koh-I-Noor Rapidograph, Inc. Ink compensating chamber for scriber
US4531853A (en) * 1981-11-02 1985-07-30 Shachihata Industry Co., Ltd. Writing instrument with a metal wire point
FR2570650A1 (fr) * 1984-09-27 1986-03-28 Pentel Kk Embout d'ecriture pour un instrument d'ecriture
US20050269371A1 (en) * 2004-05-10 2005-12-08 Chia-Lung Kuo Probe for providing micro liquid drops

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5098937U (zh) * 1974-01-21 1975-08-16
JPS52131130U (zh) * 1976-04-01 1977-10-05
JPS5742712Y2 (zh) * 1979-07-02 1982-09-20
JPS59136294A (ja) * 1983-01-27 1984-08-04 ぺんてる株式会社 セラミツク製ペン先の製造方法
JP5429681B2 (ja) * 2008-07-23 2014-02-26 東洋製罐株式会社 塗布具付き容器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE253406C (zh) *
FR57926E (fr) * 1948-01-06 1953-09-18 Perfectionnements aux stylographes
US2872899A (en) * 1957-12-02 1959-02-10 Trespalacios Basilio Writing instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE253406C (zh) *
FR57926E (fr) * 1948-01-06 1953-09-18 Perfectionnements aux stylographes
US2872899A (en) * 1957-12-02 1959-02-10 Trespalacios Basilio Writing instrument

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518019A (en) * 1967-03-28 1970-06-30 Kinichi Nakamura Synthetic resin penpoint
US3614248A (en) * 1967-07-25 1971-10-19 Katsumi Otsuka Pen wick made of synthetic resin
US3507600A (en) * 1968-01-18 1970-04-21 Parker Pen Co Solid plastic nib
US3977798A (en) * 1973-12-22 1976-08-31 Koh-I-Noor Rapidograph, Inc. Tubular writing pen
US4019243A (en) * 1974-12-20 1977-04-26 Koh-I-Noor Rapidograph, Inc. Method for forming a tubular writing pen
FR2307667A1 (fr) * 1975-04-14 1976-11-12 Parker Pen Co Instrument pour ecrire a structure modulaire
US4207012A (en) * 1975-09-25 1980-06-10 Koh-I-Noor Rapidograph, Inc. Ink compensating chamber for scriber
US4531853A (en) * 1981-11-02 1985-07-30 Shachihata Industry Co., Ltd. Writing instrument with a metal wire point
FR2570650A1 (fr) * 1984-09-27 1986-03-28 Pentel Kk Embout d'ecriture pour un instrument d'ecriture
US20050269371A1 (en) * 2004-05-10 2005-12-08 Chia-Lung Kuo Probe for providing micro liquid drops
US7279135B2 (en) * 2004-05-10 2007-10-09 Taiwan Micro System Co., Ltd. Probe for providing micro liquid drops

Also Published As

Publication number Publication date
JPS4212348Y1 (zh) 1967-07-12

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