US2756722A - Fountain pen structure - Google Patents

Fountain pen structure Download PDF

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Publication number
US2756722A
US2756722A US351899A US35189953A US2756722A US 2756722 A US2756722 A US 2756722A US 351899 A US351899 A US 351899A US 35189953 A US35189953 A US 35189953A US 2756722 A US2756722 A US 2756722A
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United States
Prior art keywords
air
duct
capillary
feeder means
fountain pen
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Expired - Lifetime
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US351899A
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English (en)
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Lamy Carl Josef
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs

Definitions

  • the present invention relates to fountain pens, and more particularly to the arrangement of equalizing capillary channels in a fountain pen.
  • a fountain pen comprising, in combination, an elongated barrel front end portion formed with an axial bore and with capillary equalizing channels opening, into said bore and an elongated feeder portion located in. the bore of the barrel and being formed with a feed duct. Transversely extending capillary conduits connect the feed duct with the equalizing channel.
  • the. present invention mainly consists in a fountain pen structurecomprising, in combination, a barrel having a threaded front end; an elongated hood threadedly connected to. thevbarrel front end, and formed with an axial bore bounded by a cylindrical inner surface having at the forward end thereof an inner shoulder, the inner surface being formed with, a plurality of capillary channels extending in longitudinal direction, elongated feeder means located in the boreand clamped between the barrel front end and the inner shoulder of the cap, the feedervmeans having a longitudinally extending outer. surface portion fluid-tightly engaging an elongated portionof the inner surface and being formed with.
  • the feeder means being at least one longitudinally extending feedduct composedof a wider outer .air duct closedat the frontend thereof, andan inner capillary ink duct extending in forward direction beyond theclosed vend of the duct, the feeder means being. also formed with a longitudinally extendingair duct open. at the front endthereof for communication with:the outside air, the air duct being located diametricallyspacedfrom the feed.duct,,the feeder means appended claims.
  • said capillary channels are deeper atthe rear end thereof.
  • Fig. l is a longitudinal sectional view through the front end portion of a fountain pen
  • Fig. 2 is a cross sectional view on line 11-11 in Fig. 1;
  • Fig. 3. is a front View of the feeder means according to the present invention.
  • Fig. 5 is a front view of the feeder means according to a: modifiedemhodiment of the present invention.
  • Fig. ,6 is a side viewvof. the feeder means shown in Fig. 5;
  • Fig..7. is a cross. sectional view on line VlIVl.l in 6;
  • Fig. 8- is a cross sectional view on line VIII-VIII in Fig. 6;
  • Fig. 9 is across sectional view on line IXIX in Fig. 6;
  • Fig. 10' is a crosssectional view on line XX in Fig.v 1.
  • the barrel front end'portion of a fountain pen according to one. embodiment of the present invention consists of the threaded front end 1 of the barrel main portion and of a hood dwhich is threadedly connected to the barrel frontvend 1.
  • the entire front endportion is formedwith a bore 2 .which partly extends in the barrel portion 1 and partly in the hood 6.
  • Peeler means 3 is located, in the bore 2 and provided with an annular shoulder 41;, abutting against a resilient sealing ring .5 which isclamped between the members 1 and 6.
  • the feeder means 3 is clamped to the sealing ring 5 and the barrel front-endrl by. means of the inner shoulder 7 of the hood 6.
  • the resilient sealing and compensating ring 5 assures a reliable attachment of the: feeder means 3 as well as a tight andfiush' engagement of the annular rear face 6 of the hood 6 with a corresponding shoulder at the front end of. the barrel 1 regardless of slight dimensional inaccurac ies.
  • Feeder means 3 is provided with a feed duct 8. 9- which is composed of one or two ink ducts 8 which extend longitudinally from the rear end portion of feeder means 3 to adjacent the'front end thereof which supports the nib 26'.
  • Nib 20 is inserted into an arcuate depressed portion14of the bore 2 in the hood 6, and has longitudinal side edges '20 engaging inner shoulders 21 inthe hood 6, as can be best seen from Fig. 10.
  • the shoulders 21 prevent turning'of'the-nib 24) relative to the hood 6 and to the feeder means
  • the air duct 9 is provided in a longitudinally extending surface portion 3 of the feeder means which fluid tightly engages a portion 2 of the cylindrical surface of the bore 2. This surface portion 2' is not provided with equalizing capillary channels 12.
  • capillary peripheral conduits 13 which are preferably located in the front end portion of feeder means 3.
  • the equalizing channels 12 are deeper at the rear end thereof, so as to have a stronger action when the fountain pen is in writing position with the front end pointed downwardly.
  • any undesirable surplus of ink which might collect in the feed duct, particularly in the air duct 9, will be drawn through the transverse peripheral capillary conduit 13 into the equalizing channels 12 which are provided with air through the transversely extending conduit 11, which communicates through air duct 10 and bore portion 14 with the outside. It should be noted that the only connection between the equalizing channels 12 and the feed duct 8, 9 is established by the capillary conduit 13. The deeper rear ends of the capillary channels 12 are connected by the air conduit 11, 11a.
  • a deflecting plate 15 is arranged on feed means 3a forwardly of the open end of the air duct means Ilia.
  • the deflecting plate 15 closes a major part of the bore 2 forcing the air entering through the bore portion 14 to pass through the cut outs 16 shown in Fig. 9 in transverse direction, then rearwardly through the cut outs 17 shown in Fig. 8, and then transversely again through the air space 18 shown in Fig. 7 to enter the forward end of the air duct Mia.
  • the deflecting or shielding plate 15 prevents leaking or squirting of ink out of the fountain pen, and also considerably reduces the formation of condensate in the rear portion of the fountain pen. Ink leaking down in forward direction through the air duct means a is prevented from entering the bore portion 14 of hood 6 in which this embodiment of feeder means is insertable in the same way as the previously described embodiment by the shielding plate which blocks direct passage of ink, while permitting the deflected air to pass into the pen. Also, the shielding plate 15 prevents undesirable drying of ink in the capillary channels 12 in the event that the fountain pen is not used for a considerable time.
  • the foremost portion 3" or 3a" of the feeder means 3 or 3a respectively which has a reduced cross section as shown in Fig. 10, is provided with a transverse groove 19 or 1%, see Figs. 3, 5 and 6 which not only improves the uniform distribution of ink over the point of the nib 20, but also facilitates drawing of ink into the fountain pen when the same is filled.
  • groove 19 or 19a assures a tight abutment between the nib 20 and the feeder portion 3" or 3a" since it permits a slight yielding of the point of the feeder portion 3" which is particularly advantageous if the point of the nib is slightly bent.
  • connection between the capillary channels 12a and the feed duct 8a, 9a is established by capillary peripheral conduits 13a which are preferably located in the front end portion of feeder means 3a.
  • a fountain pen in combination, an elongated barrel front end portion formed with an axial bore bounded by a cylindrical inner surface, said inner surface being formed with a plurality of capillary channels extending in longitudinal direction; and elongated feeder means located in said bore and having a longitudinally extending outer surface portion fluid-tightly engaging an elongated portion of said inner surface and being formed with at least one longitudinally extending feed duct composed of a wider outer air duct closed at the front end thereof and an inner capillary ink duct extending in forward direction beyond said closed end of said air duct, said feeder means being also formed with a wide longitudinally extending air passage open at the front end thereof for communication with the outside air, said air passage being located peripherally spaced from said feed duct, said feeder means having a portion formed with a peripheral capillary conduit means connecting said front end of said air duct with said air passage and with said capillary channel, said feeder means having a rear end portion formed with a peripheral air conduit connecting said air passage with said ca
  • a fountain pen in combination, an elongated barrel front end portion formed with an axial bore bounded by a cylindrical inner surface, said inner surface being formed with a plurality of capillary channels extending in longitudinal direction, said capillary channels being deeper at the rear end thereof; and elongated feeder means located in said bore and having a longitudinally extending outer surface portion fluid-tightly engaging an elongated portion of said inner surface and being formed with at least one longitudinally extending feed duct composed of a wider outer air duct closed at the front end thereof and an inner capillary ink duct extending in forward direction beyond said closed end of said air duct, said feeder means being also formed with a wide longitudinally extending air passage open at the front end thereof for communication with the outside air, said air passage being located diametrically spaced from said feed duct, said feeder means having a portion formed with peripheral capillary conduits connecting said front end of said air duct with said air passage and with said capillary channels, said feeder means having a rear end portion formed with
  • an elongated barrel front end portion formed with an axial bore bounded by a cylindrical inner surface, said inner surface being formed with a plurality of capillary channels extending in longitudinal direction; elongated feeder means located in said bore and having a longitudinally extending outer surface portion fluid-tightly engaging an elongated portion of said inner surface and being formed with at least one longitudinally extending feed duct composed of a wider outer air duct closed at the front end thereof and an inner capillary ink duct extending in forward direction beyond said closed end of said air duct, said feeder means being also formed with a wide longitudinally extending air passage open at the front end thereof for communication with the outside air, said air passage being located diametrically spaced from said feed duct, said feeder means having a portion formed with peripheral capillary conduits connecting said front end of said air duct with said air passage and with said capillary channels, said feeder means having a rear end portion formed with a peripheral air conduit connecting said air passage with said capillary channels
  • a hollow barrel having a threaded front end; an elongated hood threadedly connected to said barrel front end, and being formed with an axial bore bounded by a cylindrical inner surface having at the forward end thereof an inner shoulder, said inner surface being formed with a plurality of capillary channels extending in longitudinal direction; elongated feeder means located in said bore and clamped between said barrel front end and said inner shoulder of said hood, said feeder means having a longitudinally extending outer surface portion fluid-tightly engaging an elongated portion of said inner surface and being formed with at least one longitudinally extending feed duct composed of a wider outer air duct closed at the front end thereof and an inner capillary ink duct extending in forward direction beyond said closed end of said air duct, said feeder means being also formed with a wide longitudinally extending air passage open at the front end thereof for communication with the outside air, said air passage being located diametrically spaced from said feed duct, said feeder means having a portion formed with
  • a fountain pen in combination, an elongated barrel front end portion formed with an axial bore bounded by a cylindrical inner surface, said inner surface being formed with a plurality of peripherally spaced longitudinally extending capillary channels; elongated feeder means located in said bore and having an outer surface portion fluid-tightly engaging a portion of said inner surface and being formed with at least one longitudinally extending feed duct composed of a wider outer air duct closed at the front end thereof and of an inner capillary ink duct having a forwardly located ink duct end portion extending in forward direction beyond said closed end of said air duct, said outer surface of said feeder means being also formed with a Wide longitudinally extending air passage open at the front end thereof and being located peripherally spaced from said feed duct, said feeder means being formed with a peripheral capillary conduit connecting said front end of said air duct with said air passage and with the forward ends of said capillary channels, said feeder means having a rear end portion formed with a peripheral air conduit in said outer surface thereof connecting said
  • a fountain pen as claimed in claim 7 wherein said nib has a pair of longitudinal side edges, and wherein said barrel front end portion has a pair of longitudinally extending shoulders in said bore engaging said side edges of said nib.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US351899A 1952-05-08 1953-04-29 Fountain pen structure Expired - Lifetime US2756722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE312235X 1952-05-08

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US2756722A true US2756722A (en) 1956-07-31

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US (1) US2756722A (de)
CH (1) CH312235A (de)
GB (1) GB739284A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289640A (en) * 1956-12-22 1966-12-06 Montblanc Simplo Gmbh Ink conductor for fountain pens
US3532436A (en) * 1966-12-10 1970-10-06 Montblanc Simplo Gmbh Feed bar for fountain pens
WO2018130076A1 (zh) * 2017-01-13 2018-07-19 北京赛特超润界面科技有限公司 一种钢笔式导液浸润装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254506B (de) * 1957-11-12 1967-11-16 Faber Castell A W Fuellfederhalter mit verdecktem, vom rueckwaertigen Ende her in den Schaftvorderteileinsetzbarem Tintenleiter
JPH0230311Y2 (de) * 1985-02-20 1990-08-15

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706923A (en) * 1927-03-07 1929-03-26 William A Hartline Feeder bar
US2129134A (en) * 1936-07-21 1938-09-06 Mentmore Mfg Co Ltd Fountain pen
US2396919A (en) * 1944-11-09 1946-03-19 American Lead Pencil Co Fountain pen
FR932339A (fr) * 1946-08-14 1948-03-18 Stylomine Ets Perfectionnements aux stylographes
US2489983A (en) * 1944-02-14 1949-11-29 Scripto Inc Fountain pen
DE820253C (de) * 1950-03-23 1951-11-08 Soennecken Fa F Fuellfederhalter, bei dem die Feder zwischen der Innenwand des Halterschaftes und des Tintenleiters festgeklemmt ist
DE828966C (de) * 1950-02-02 1952-01-21 Theodor Kovacs Tintenleiter fuer Fuellfederhalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706923A (en) * 1927-03-07 1929-03-26 William A Hartline Feeder bar
US2129134A (en) * 1936-07-21 1938-09-06 Mentmore Mfg Co Ltd Fountain pen
US2489983A (en) * 1944-02-14 1949-11-29 Scripto Inc Fountain pen
US2396919A (en) * 1944-11-09 1946-03-19 American Lead Pencil Co Fountain pen
FR932339A (fr) * 1946-08-14 1948-03-18 Stylomine Ets Perfectionnements aux stylographes
DE828966C (de) * 1950-02-02 1952-01-21 Theodor Kovacs Tintenleiter fuer Fuellfederhalter
DE820253C (de) * 1950-03-23 1951-11-08 Soennecken Fa F Fuellfederhalter, bei dem die Feder zwischen der Innenwand des Halterschaftes und des Tintenleiters festgeklemmt ist

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289640A (en) * 1956-12-22 1966-12-06 Montblanc Simplo Gmbh Ink conductor for fountain pens
US3532436A (en) * 1966-12-10 1970-10-06 Montblanc Simplo Gmbh Feed bar for fountain pens
WO2018130076A1 (zh) * 2017-01-13 2018-07-19 北京赛特超润界面科技有限公司 一种钢笔式导液浸润装置

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Publication number Publication date
GB739284A (en) 1955-10-26
CH312235A (de) 1955-12-31

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