US2891512A - Fountain pens - Google Patents

Fountain pens Download PDF

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Publication number
US2891512A
US2891512A US586552A US58655256A US2891512A US 2891512 A US2891512 A US 2891512A US 586552 A US586552 A US 586552A US 58655256 A US58655256 A US 58655256A US 2891512 A US2891512 A US 2891512A
Authority
US
United States
Prior art keywords
nozzle
nipple
bore
ink
fountain pen
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
US586552A
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English (en)
Inventor
Kovacs Theodor
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2891512A publication Critical patent/US2891512A/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
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/16—Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element
    • B43K8/18—Arrangements for feeding the ink to the writing-points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/16—Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element

Definitions

  • the present invention relates in general to fountain pens and more particularly to fountain pens having removable nozzles.
  • the rear bore of the nozzle of the fountain pen is fitted on the conical or cylindrically shaped nipple of the fountain pen.
  • the connection between the nozzle and nipple usually is so tight that a suction effect is produced when the nozzle is attached to the nipple. Therefore, when the nozzle is removed from the nipple, ink flows out of the pen into the rear bore of the nozzle. As a result of this ow of ink due to suction the nipple, bore and other parts of the fountain pen are dirtied.
  • the ink on the nipple and in the bore eventually dries and encrustations of ink are formed on the nipple and in the bore.
  • a further more specific object of the present invention is to provide such a fountain pen structure with a withdrawable cleaning wire.
  • Fig. 1 is a longitudinal section of the front portion of a fountain pen with a nozzle for drawing lines
  • Fig. -Z is a longitudinal section of the rear portion thereof. 1 l
  • Fig. 3 isV a cross section on the line IIl--lll of Fig. 1.
  • Fig. 4 is a longitudinal section of the tip portion of a nozzle for stencil writing.
  • the hollow barrel of the pen is the hollow barrel of the pen.
  • the rear portion of the bore of the barrel is narrower and forms the ink reservoir 2.
  • a hollow stem 3 screwthreaded at its rear end, the front portion 4 of which fits in the bore of the barrel.
  • the middle portion of the hollow stem is so tapered that, between its outer surface 5 and the inner surface of the barrel, a capillary intervening space 6 of annular cross section, adapted to receive and to yieldup excess ink, is provided, which in front is in communication with the ⁇ atmosphere by an air-inlet opening 7.
  • the hollow stem 3 is provided with a collar 8, which is furnished with a gap 8'.
  • the hollow stem 3 is provided behind and adjoining its front portion 4 with an annular groove 10.
  • the hollow stem 3 is provided at its front end with a screwthreaded neck 12 and an adjoining nipple 13.
  • the screwthreaded neck is formed with a groove 14.
  • a sleeve 15 which has an external diameter about 0.1 rnm. smaller than the internal diameter of the bore of the hollow stern, whereby between the sleeve 15 and the surface of the bore, a highly capillary intervening space 16 of annular cross section is provided.
  • the sleeve 15 has at its rear end an integral nose 17, which on screwing the hollow stem 3 into the barrel, is clamped between the former and a shoulder in the bore of the barrel, and serves as an abutment for the sleeve.
  • the sleeve extends so far into the bore of the hollow stem, that, between its front conical end face and the conical base of the hollow stem, a highly capillary interspace arises, which forms a continuation of the highly capillary interspace 16.
  • a casing 18 which clamps a packing device 19 inserted in the bore of the barrel.
  • a bush 20 withdrawable rearwardly up to a stop 18'.
  • Such bush is provided with a grip piece 21.
  • a plunger 22 is arranged, which is secured against falling-out and bears against a rod 24, extending to the front portion of the barrel and under the influence of a compression spring 23.
  • a flexible cleaning wire 25 is secured.
  • a nozzle 26, serving for drawing lines, is screwed on to the screwthreaded neck 12.
  • the nipple 13 meets with its front end the base of the hollow head of the nozzle, whereby a reliable, huid-tight connection is effected between the narrow axial bore of the nipple and the narrow axial bore of the nozzle.
  • the internal diameter of the hollow head of the nozzle is considerably greater than the external diameter of the nipple.
  • a wide intervening space 27 is thus provided.
  • the side wall of the hollow head of the nozzle is perforated by wide transverse bores 28.
  • Two tongues 29, 30 are set in the front portion of the nozzle 26.
  • the tongues resiliently bearing ⁇ against each other, provide a channel extending almost to the tip of the tongues, in continuation of the narrow axial bore of the nozzle.
  • the cleaning wire 25 extends almost to the front end of the channel and forms in the narrow bore of the nipple and of the nozzle and in the channel, -a' highly capillary ink conduit 31, 32, 33.
  • Fig. 4 shows the front end of a nozzle 26 for stencil writing with an angularlyv bent writing ⁇ tube 34.
  • the flexible cleaning wire 25 conforms to the curvature of the writing tube and forms within the writing tube a highly capillary ink conduit 35.
  • the ink flows through the highly capillary intervening space 16, through its continuation and through the ink conduit 31, 32, 33, to the Writing tip.
  • the axial bore 15' in the base of the sleeve 15 is so narrow that with the cleaning wire 2,5 passed therethrough, it does not permit ink to flow even along the cleaning wire, as a result of which the uniformity of the ink iiow cannot be ydisturbed by movements ⁇ of the rod 24.
  • the replacement air penetrates through the air-inlet opening '7 into the overflow chamber 6 and, after consumption of overflow ink contained therein, through the gap 8 and the air passage 9 into the reservoir.
  • the annular groove 1G of the hollow stem 3 prevents the closure of the air-inlet opening 7 by the overflow of ink and permits the venting of the overow chamber by the longitudinal grooves 11.
  • the intermediate space 27 in the head of the nozzle surrounding the nipple 13 does not permit ascent of ink in the head of the nozzle.
  • the nozzles therefore can be exchanged without dirtying the neck 12 and nipple 13.
  • the transverse bores 28 prevent any suction arising on unscrewing the nozzle.
  • the longitudinal groove 14 of the screwthreaded neck 12 serves for removing dried ink residues, which may remain in the screwthreads from filling.
  • the screwthread on the screwthreaded neck of the hollow stern 3 and the internal screwthread in the heads of the nozzles are so proportioned, that the air passage 9 constantly assumes the same position relatively to the writing surface, when the fountain pen is applied to the work.
  • a fountain pen structure furnished at the front end with a neck portion, said neck portion having a nipple provided with an axial bore in capillary communication with the ink reservoir, and with a tip carrying nozzle mounted on said neck portion, said nozzle having a wide rear bore and a narrow bore extending therefrom to the tip of the nozzle in continuation of the axial nipple bore, in which the internal diameter of the wide rear bore of the nozzle is considerably ⁇ larger than the eX- ternal diameter of the nipple, the nipple contacting only with its end face the mounted nozzle with a wide annular space intervening between the nipple and the surface of the rear bore of the nozzle.
  • a fountain pen structure as claimed in claim l wherein the nozzle carries a writing tube.
  • a fountain pen structure as claimed in claim .9 wherein a hollow stem is arranged in thefront part of the casing, a sleeve inserted in said hollow stem, forming with its outer surface Aan ink conduit, within said hollow stem, said ink conduit extending to the axial bore of the nipple, the inner surface of said ⁇ sleeve serving as a guide for the front end of said rod to Vwhich the cleaning wire is connected.

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  • Pens And Brushes (AREA)
US586552A 1955-05-25 1956-05-22 Fountain pens Expired - Lifetime US2891512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK25894A DE1010415B (de) 1955-05-25 1955-05-25 Fuellhalter mit auswechselbaren Schreib- und Zeichenduesen

Publications (1)

Publication Number Publication Date
US2891512A true US2891512A (en) 1959-06-23

Family

ID=7217447

Family Applications (1)

Application Number Title Priority Date Filing Date
US586552A Expired - Lifetime US2891512A (en) 1955-05-25 1956-05-22 Fountain pens

Country Status (6)

Country Link
US (1) US2891512A (fr)
BE (1) BE548110A (fr)
CH (1) CH343260A (fr)
DE (1) DE1010415B (fr)
FR (1) FR1149886A (fr)
GB (1) GB784388A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134363A (en) * 1960-09-23 1964-05-26 Kovacs Theodor Fountain pen
US3424538A (en) * 1965-09-16 1969-01-28 Pelikan Werke Wagner Guenther Pen
US3442597A (en) * 1965-08-12 1969-05-06 Heinrich Hebborn Fountain pen
US3459486A (en) * 1966-08-05 1969-08-05 Staedtler J S Kg Writing utensil
US3467477A (en) * 1966-07-15 1969-09-16 Pelikan Werke Wagner Guenther Marking device
US3503693A (en) * 1968-09-26 1970-03-31 Dike Inc Drafting pen
US3535048A (en) * 1968-10-24 1970-10-20 Dike Inc Drafting pen with magnetically reciprocated cleaning wire
US3535049A (en) * 1969-02-05 1970-10-20 Dike Inc Extendible-retractible pen having interior vent and capillary passage cleaning means
US3901608A (en) * 1972-01-27 1975-08-26 Phillip Phillips Writing instrument
US4390299A (en) * 1980-10-02 1983-06-28 Otto Mutschler India ink drawing implement
US4753546A (en) * 1978-02-14 1988-06-28 Koh-I-Noor Rapidograph, Inc. Pressure balanced stylographic pen
US20130078025A1 (en) * 2010-03-31 2013-03-28 Carmit Turgeman Refill system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7810290A (nl) * 1978-10-12 1980-04-15 Bok Edward Pen met een verbeterd inktinjectie- systeem.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705613A (fr) * 1951-05-01
DE238294C (fr) *
DE99102C (fr) *

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE273638C (fr) *
DE349408C (de) * 1922-03-02 Theodor Kovacs Rohrfeder fuer Fuellfederhalter
DE351930C (de) * 1922-04-19 Theodor Kovacs Fuellfederhalter mit Schreibspitze
DE249042C (fr) *
DE349548C (fr) *
CH81788A (de) * 1918-10-25 1919-12-01 Hermann Burkhardt Füllschreibstifthalter
AT85902B (de) * 1919-10-31 1921-10-25 Josef Mueller Füllfederhalter.
FR517248A (fr) * 1920-06-16 1921-05-02 Berchtold & Kunz Tire-ligne à réservoir
CH107012A (de) * 1924-01-12 1925-02-16 Roggen Arnold Füllhalter für verschiedene Zwecke.
BE337528A (fr) * 1925-10-26
DE832559C (de) * 1949-05-10 1952-02-25 Johannes Michaeel Van Arnoldus Schreibgeraet mit konvergierenden Federspitzen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE238294C (fr) *
DE99102C (fr) *
GB705613A (fr) * 1951-05-01

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134363A (en) * 1960-09-23 1964-05-26 Kovacs Theodor Fountain pen
US3442597A (en) * 1965-08-12 1969-05-06 Heinrich Hebborn Fountain pen
US3424538A (en) * 1965-09-16 1969-01-28 Pelikan Werke Wagner Guenther Pen
US3467477A (en) * 1966-07-15 1969-09-16 Pelikan Werke Wagner Guenther Marking device
US3459486A (en) * 1966-08-05 1969-08-05 Staedtler J S Kg Writing utensil
US3503693A (en) * 1968-09-26 1970-03-31 Dike Inc Drafting pen
US3535048A (en) * 1968-10-24 1970-10-20 Dike Inc Drafting pen with magnetically reciprocated cleaning wire
US3535049A (en) * 1969-02-05 1970-10-20 Dike Inc Extendible-retractible pen having interior vent and capillary passage cleaning means
US3901608A (en) * 1972-01-27 1975-08-26 Phillip Phillips Writing instrument
US4753546A (en) * 1978-02-14 1988-06-28 Koh-I-Noor Rapidograph, Inc. Pressure balanced stylographic pen
US4390299A (en) * 1980-10-02 1983-06-28 Otto Mutschler India ink drawing implement
US20130078025A1 (en) * 2010-03-31 2013-03-28 Carmit Turgeman Refill system and method

Also Published As

Publication number Publication date
DE1010415B (de) 1957-06-13
BE548110A (fr)
GB784388A (en) 1957-10-09
CH343260A (de) 1959-12-15
FR1149886A (fr) 1958-01-02

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