US3459485A - Fountain-pen closing device by means of a cap - Google Patents

Fountain-pen closing device by means of a cap Download PDF

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Publication number
US3459485A
US3459485A US610292A US3459485DA US3459485A US 3459485 A US3459485 A US 3459485A US 610292 A US610292 A US 610292A US 3459485D A US3459485D A US 3459485DA US 3459485 A US3459485 A US 3459485A
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US
United States
Prior art keywords
cap
fountain
pen
cylindrical
projections
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
US610292A
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English (en)
Inventor
Guy Frederic Rigondaud
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.)
LE FOYER ET CIE SOC
Original Assignee
LE FOYER ET CIE SOC
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 LE FOYER ET CIE SOC filed Critical LE FOYER ET CIE SOC
Application granted granted Critical
Publication of US3459485A publication Critical patent/US3459485A/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
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens

Definitions

  • the cylindrical surface furthest from the tip has a greater diameter than that of the other cylindrical surface
  • the cap has a plurality of internal part-spherical projections defining a cylindrical interior opening which is smaller than the diameter of the smaller cylindrical surface whereby when the body is inserted into the cap, the latter is resiliently deformed, and when the projections reach the groove they are urged thereinto by the elastic action of the cap, the degree of penetration of the body into the cap being limited by the contact of the lower edge of the cap with the shoulder at the larger cylindrical surface.
  • the present invention relates to a closing device for fountain-pen by means of a cap.
  • a number of closing devices for fountain-pens by means of a cap are known, the oldest of which is no doubt the one resorting to a cap adapted to be screwed on the fountain-pen body, to achieve the desired closing thereof.
  • the invention has more particularly for its object to provide a device whereby a user will find it practically impossible not to reach the effective closure position, thus establishing for the cap memberat any timeits required tightness.
  • FIGURE 1 is a view with parts broken away of a portion of the fountain-pen fitted with the closing device according to the invention.
  • FIGURE 2 is a longitudinal cross-sectional view of a portion of the cap member according to the invention, adjacent the orifice thereof.
  • FIGURE 3 is a view of a fountain-pen body at its portion adapted to cooperate with the cap member.
  • FIGURE 4 is a cross-sectional view of the fountainpen cap taken along line 44 of FIGURE 2.
  • FIGURE 5 is a longitudinal cross-sectional view of part of the cap member cooperating with the fountain-pen body, in a position slightly preceding the closure.
  • FIGURE 6 is a view similar to that of FIGURE 5, but in a position directly preceding the closure.
  • FIGURE 7 is a view similar to that in FIGURES 5 and 6, corresponding to the closed position.
  • the section 10 of the fountain-pen (FIGURE 1) comprises at the rear end thereof a cylindrical outer surface 11 (FIGURE 3) leading at its back end portion into a groove 12 of a rectangular profile.
  • the groove is formed with a cylindrical bottom 13, a front shoulder 14 and a back shoulder 15.
  • the front shoulder forms part of section 10.
  • the back shoulder 15 constitutes the front section of the tubular body 16 of the fountainpen, connected to section 10 by a threaded engagement.
  • Metal cap 20 (FIGURE 2) is substantially cylindrical in portion 21 adjacent its orifice 22. Close to said orifice, there are provided along a transversal section perpendicular to the longitudinal axis of the cap member, three inner, uniformly distributed projections 23 23 23 (FIG- URE 4. These projections may be obtained by driving balls into the outer portion of the cap member, thus assuming the shape of portions of a sphere.
  • the apexes 24 24 24 of said spherical portions are located along a circle the diameter of which is very slightly smaller than that of the outer cylindrical surface 11 of the section.
  • a lining or packing which may be of plastic material, for instance polyethylene.
  • This lining is in the form of a tube open at one end, which comprises a cylindrical body 31 extending towards the bottom of the cap member through a truncated-conical portion 32 connecting to a plane bottom 33.
  • body 31 On the side facing said frusto-conical portion 32, body 31 has a thickened part 34, forming an outer cylindrical bearing v35 and beyond part 34, body 31 continuing as a thinned cylindrical portion or lip 36, the edge 37 of which limits the orifice of the lining.
  • the inner surface 38 of the lining is cylindrical from edge 37 up to the truncated-conical portion 32.
  • Body 30 is secured in the metal cap member 20, for instance by simply pushing it into the latter.
  • the device operates as follows:
  • the closure In the closed position, the outer edge 27 of the shoulder 14 cooperates with edge 28 of the spherical projections 23, and thus ensures said closed position. Consequently, and in contradistinction to previously known devices, the closure is not preceded by the occurrence of a resistance to penetration, but on the contrary, in the immediate neighborhood of the closure position, this resistance to insertion disappears, leaving the stresses created in the cap member to develop resilient forces adapted to unavoidably bring the cap member in its closure position, for which the tightness of the chamber inside the cap member is assured.
  • the closure device applies not only to the fountain-pens proper, but also to any kind of writing instruments.
  • a closing device for a writing instrument comprising a body, and a resilient cap which is removably securable on said body, said body including a tapered front section with a rear part having a first cylindrical surface,
  • said cap having a lower edge with an opening thereat for receiving said tapered front section and including a plurality of internal part-spherical projections defining a cylindrical interior opening which is smaller than the diameter of said first cylindrical surface whereby when the body is inserted into the cap, the latter is resiliently deformed, said projections being spaced from said edge of the cap such that with the body inserted into the cap said projections can engage in said groove while said lower edge of the cap contacts the shoulder formed by said second cylindrical surface which thereby forms an abutment for said cap, said projections having an axial length of such dimension that with said lower edge of the cap in contact with said corresponding shoulder the projection contacts the other shoulder, the spherical projections each having a radius such that when a portion thereof furthest remote from said edge of the
  • a device as claimed in claim 1 wherein said cap comprises a metallic element and a resilient lining in said element which sealingly engages said body at the surface of the tapered section in the position in which the cap is secured on said body.
  • a device as claimed in claim 2 wherein said lining comprises a thin resilient lip facing said tapered section of said body to form a seal therewith upon contact of the lip and said body.

Landscapes

  • Pens And Brushes (AREA)
  • Toys (AREA)
US610292A 1966-01-21 1967-01-19 Fountain-pen closing device by means of a cap Expired - Lifetime US3459485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46685A FR1471266A (fr) 1966-01-21 1966-01-21 Dispositif de fermeture de stylographe par capuchon

Publications (1)

Publication Number Publication Date
US3459485A true US3459485A (en) 1969-08-05

Family

ID=8599330

Family Applications (1)

Application Number Title Priority Date Filing Date
US610292A Expired - Lifetime US3459485A (en) 1966-01-21 1967-01-19 Fountain-pen closing device by means of a cap

Country Status (6)

Country Link
US (1) US3459485A (de)
CH (1) CH466084A (de)
DE (2) DE1561823A1 (de)
FR (1) FR1471266A (de)
GB (1) GB1142659A (de)
NL (1) NL6700393A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451114A (en) * 1992-03-02 1995-09-19 Kabushiki Kaisha Sakura Kurepasu Liquid applicator and a cap thereof
US5648035A (en) * 1993-05-05 1997-07-15 Toray Industries, Inc. Process for producing film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5254424Y1 (de) * 1975-04-18 1977-12-09
GB2322598B (en) * 1997-02-26 2001-11-07 Pioneer Ind Corp Writing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191022077A (en) * 1910-09-23 1911-05-25 Henry George Read Improvements in Fountain Pens.
US1583579A (en) * 1923-03-24 1926-05-04 Carter S Ink Co Fountain-pen cap
US2274470A (en) * 1941-02-26 1942-02-24 Sheaffer W A Pen Co Fountain pen
US3171196A (en) * 1960-06-28 1965-03-02 Fagard A J & Cie Method of producing a clip action bearing portion on a male element for assembly of said male element with a female tubular element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191022077A (en) * 1910-09-23 1911-05-25 Henry George Read Improvements in Fountain Pens.
US1583579A (en) * 1923-03-24 1926-05-04 Carter S Ink Co Fountain-pen cap
US2274470A (en) * 1941-02-26 1942-02-24 Sheaffer W A Pen Co Fountain pen
US3171196A (en) * 1960-06-28 1965-03-02 Fagard A J & Cie Method of producing a clip action bearing portion on a male element for assembly of said male element with a female tubular element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451114A (en) * 1992-03-02 1995-09-19 Kabushiki Kaisha Sakura Kurepasu Liquid applicator and a cap thereof
US5648035A (en) * 1993-05-05 1997-07-15 Toray Industries, Inc. Process for producing film

Also Published As

Publication number Publication date
CH466084A (fr) 1968-11-30
FR1471266A (fr) 1967-03-03
GB1142659A (en) 1969-02-12
DE1561823A1 (de) 1970-07-23
NL6700393A (de) 1967-07-24
DE6601790U (de) 1969-03-20

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