US2513201A - Twin fountain pens - Google Patents

Twin fountain pens Download PDF

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Publication number
US2513201A
US2513201A US56530A US5653048A US2513201A US 2513201 A US2513201 A US 2513201A US 56530 A US56530 A US 56530A US 5653048 A US5653048 A US 5653048A US 2513201 A US2513201 A US 2513201A
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US
United States
Prior art keywords
ink
twin
ink tubes
pistons
cylinder
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
US56530A
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English (en)
Inventor
Reddemann Werner Karl
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 US2513201A publication Critical patent/US2513201A/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
    • B43K27/00—Multiple-point writing implements, e.g. multicolour; Combinations of writing implements
    • B43K27/08—Combinations of pens

Definitions

  • Fig. l is a central sectional view of a twin fountain pen constructed in accordance with this invention.
  • Fig. 2 is a fragmentary enlarged detailed View of the central portion of Fig. 1, but illustrated with the spindles of the pistons separated.
  • Fig. 3 is a sectional view taken on the line 3--3 of Fig. 2.
  • the twin fountain pen in accordance with this invention, includes a middle stationary hollow cylinder I having end portions II.
  • This hollow cylinder I0 is formed from three sections, namely, a central annular section I2, and end sections I3 threadedly mounted in and extending from the ends of said central annular section I2.
  • An annular turnable member I is provided for each end portion I3, and is turnably mounted on said end portion coaxially of said cylinder IIl.
  • These turnable members I5 have reduced end portions I6 formed with external threads.
  • the end sections I3 are provided with flanges Il having bottom shoulders against which the ends of the turnable members I5 engage.
  • the bottom shoulders of the flanges I 'I are opposed by reduced end por- V1 Claim. (o1. 12o-4211) tions ofr the central annular section I2 ofthe cylinder I Il thus forming grooves into which portions'of theV turnablemembers I5 engage and by which the turnable members I5 are turnably supported.
  • An ink tube I3 is provided for jeach end portion I6 and is coaxially mounted thereon.
  • the ink tubes I8 ⁇ have-internal threads threadedly engaging the external threads of said reduced end portions I6.
  • the outer end of each ink tube I8 is provided with an end member I9 having an ink feed 20 and a pen point 2
  • a suction piston 23 is engaged in one of said ink tubes I8, and a suction piston 24 is engaged in the other of the ink tubes I8. These suction pistons 23 and 24 have tight fits in the ink tubes I8 in order to turn with the ink tubes when the latter are turned.
  • a spindle 25 is rigidly connected with the piston 23.
  • Aspindle 26 is rigidly connected with the piston 24. These spindles 25 and 26 extend coaxially through the ink tubes I8 and threadedly engage through the ends of the hollow -cylinder I 0 in order to be displaced inwardly and outwardly as the ink tubes I8 are turned in one direction and the other.
  • the spindle 26 is hollow and has an open end, and the spindle 25 is solid and telescopically engages into the open end of the spindle 26.
  • a cap 30 is removably engaged over the bottom pen point 2
  • This cap 36 has a central internal threaded portion 3l which threadedly engages external threads upon the bottom ink tube I 8.
  • the edge 32 of the cap 3D abuts the bottom turnable member I5.
  • a top cap 34 engages over the top pen point 2I and the top ink tube I8.
  • This cap 34 is made from two sections, namely, a tubular section 35 and an end section 36.
  • the end section 36 threadedly engages into the end of the tubular section 35. There is a small space 31 between these sections for an ordinary fountain pen clip.
  • the tubular section 35 is provided with an internal threaded portion 38 which threadedly engages external threads formed on the top ink tube I8.
  • the inner end of the tubular section 35 abuts the top turnable member I5.
  • the operation of the new twin fountain pen may be understood from the following:
  • the caps 30 and 34 may be removed at will to expose the twin ⁇ pen points 2
  • the hollow cylinder I0 is held stationary, while the turnable members I5 may be turned in one direction or the other in order to correspondingly turn the ink tubes I8. Since the suction pistons 23 and 24 are tight ts in the ink tubes I8, they will be turned with the ink tubes. Because the pistons 23 and 24 are turned, and spindles 25 and 26 will be correspondingly turned, and because said spindles are threadedly engaged in the ends of the stationary hollow cylinder l0, the spindles will be longitudinally displaced and will correspondingly displace the pistons 23 and 24. In this way ink may be drawn into or expelled from the ink tubes I8.
  • a middle stationary hollow cylinder having end portions, a turnable member turnably mounted on each end portion of said cylinder coaxially of said cylinder and having reduced portions coaxial of said cylinder, an ink tube coaxially mounted on each of said reduced portions, a suction piston for each Vof said ink tubes making a tight fit in each of said 4 ink tubes in order to turn when said ink tubes are turned, a spindle for each of said pistons xedly connected with each of said pistons, extending coaxially through said ink tubes, and threadedly engaging through the ends of said cylinder in order to be displaced as said ink tubes :are turned, said cylinder having coaxial external ⁇ peripheral grooves on its end portions and said turnable members being turnably mounted in said ⁇ grooves in order that said ink tubes merely turn in vrelation to saidmiddle stationary hollow cylinder without moving longitudinally of said middle stationary hollow cylinder when said pistons arezdisplaced.

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  • Pens And Brushes (AREA)
US56530A 1947-11-04 1948-10-26 Twin fountain pens Expired - Lifetime US2513201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1006039T 1947-11-04

Publications (1)

Publication Number Publication Date
US2513201A true US2513201A (en) 1950-06-27

Family

ID=9565374

Family Applications (1)

Application Number Title Priority Date Filing Date
US56530A Expired - Lifetime US2513201A (en) 1947-11-04 1948-10-26 Twin fountain pens

Country Status (2)

Country Link
US (1) US2513201A (fr)
FR (1) FR1006039A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221490A (en) * 1978-11-30 1980-09-09 The Gillette Company Two ended retractable writing instrument
US5306107A (en) * 1990-12-28 1994-04-26 Kotobuki & Co., Ltd. Twin-type stick-shaped material extending container
US20060165474A1 (en) * 2005-01-24 2006-07-27 Jun Zhang Cosmeticizing pen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827579A (en) * 1930-02-28 1931-10-13 Francis J Harris Coupling for pumping fire engines
US2148566A (en) * 1937-06-23 1939-02-28 Leon Frances Swivel joint hose coupling
US2457217A (en) * 1945-04-30 1948-12-28 Ernst Max Dual fountain pen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827579A (en) * 1930-02-28 1931-10-13 Francis J Harris Coupling for pumping fire engines
US2148566A (en) * 1937-06-23 1939-02-28 Leon Frances Swivel joint hose coupling
US2457217A (en) * 1945-04-30 1948-12-28 Ernst Max Dual fountain pen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221490A (en) * 1978-11-30 1980-09-09 The Gillette Company Two ended retractable writing instrument
US5306107A (en) * 1990-12-28 1994-04-26 Kotobuki & Co., Ltd. Twin-type stick-shaped material extending container
US20060165474A1 (en) * 2005-01-24 2006-07-27 Jun Zhang Cosmeticizing pen
US7175359B2 (en) * 2005-01-24 2007-02-13 Jun Zhang Cosmeticizing pen

Also Published As

Publication number Publication date
FR1006039A (fr) 1952-04-18

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