US3570284A - Writing pen lock - Google Patents

Writing pen lock Download PDF

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Publication number
US3570284A
US3570284A US3570284DA US3570284A US 3570284 A US3570284 A US 3570284A US 3570284D A US3570284D A US 3570284DA US 3570284 A US3570284 A US 3570284A
Authority
US
United States
Prior art keywords
barrel member
barrel
bore
lock
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
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English (en)
Inventor
Grover E Hendricks
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.)
ROLAMECH COMPANY Inc
Original Assignee
Rolamech Patents 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 Rolamech Patents Ltd filed Critical Rolamech Patents Ltd
Application granted granted Critical
Publication of US3570284A publication Critical patent/US3570284A/en
Assigned to ROLAMECH COMPANY, INC. reassignment ROLAMECH COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROLAMECH PATENTS, LTD., AN IL. CORP.
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
    • B43K31/00—Writing implement receptacles functioning as, or combined with, writing implements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5009—For portable articles

Definitions

  • a writing pen having locking first and second barrel members which house an ink cartridge.
  • the first barrel member has a longitudinal bore therein and the second barrel member includes an insert part slidably disposed within the longitudinal bore of the first barrel member.
  • An interlock member is slidably received within the insert part of the second barrel member and serves to cam a detent which is seated in a lateral bore in the insert part of the second barrel member into a recess in the first barrel member and thereby lock the barrel members together.
  • This invention relates to a writing pen having locking barrel parts which house an ink cartridge.
  • Writing pens such as ball point pens
  • Many of these pens are taken or otherwise disappear when in use and must be replaced at additional expense.
  • To reduce the incidence of pen loss it is customary to anchor the pens to desks or pen holders by means of light-weight chains. But, even with this loss-preventive measure being taken, it is not uncommon to find pens which have been disassembled and parts thereof taken.
  • This invention concerns a writing pen which is uniquely constructed so that it cannot be disassembled by the ordinary user.
  • This invention relates to a writing pen having locked barrel members which house an ink cartridge and which cannot be disassembled or separated by the ordinary user of the pen.
  • the writing pen of this invention includes first and second engaging barrel members and a lock member slidably disposed within the barrel members.
  • the lock member serves to cam an internally positioned detent into interlocking engagement with the first and second barrel members and thereby prevent their separation.
  • the lock member can be shifted within the barrel members of the pen by means of a special tool so as to cause the detent to be freed from its interlocking engagement with the barrel members and thereby allow the barrel members to be separated.
  • the pen can be attached to one end of a chain or cable which has its opposite end secured to a writing desk, pen holder, or similar anchoring means and is so designed that its interlocking parts are concealed from the pen user so as to provide no hint as to how its barrel members can be separated.
  • Still another object of this invention is to provide a writing pen which is of economical construction and which ice.
  • FIG. 1 is a perspective view of the writing pen of this invention in use and attached by cable to a pen holder.
  • FIG. 2 is an enlarged perspective view of the writing pen of FIG. 1.
  • FIG. 3 is an enlarged fragmentary axial sectional view of the writing pen of FIG. 1.
  • FIG. 4 is an enlarged fragmentary axial sectional view of the writing pen of FIG. 1 illustrating the use of a special tool to disassemble the pen.
  • FIG. 5 is an exploded view of the writing pen of FIG. 1.
  • FIG. 6 is a fragmentary axial sectional view of the writing pen of FIG. 1 in modified form.
  • FIG. 7 is a fragmentary axial sectional view of the writing pen of FIG. 1 in modified form.
  • FIG. 8 is a cross-sectional View taken along line 8-8 of FIG. 7.
  • FIGS. 1-5 The embodiment of the pen of this invention illustrated in FIGS. 1-5 includes a first barrel member 10 and an engaging head or second barrel member 12 which cooperate to house an ink cartridge 14.
  • First barrel member 10 is preferably tubular and has a longitudinal bore 16 which is defined in part by a rear end wall 18 and a tubular wall 19.
  • the inner surface of wall 19 is preferably interrupted by a circumferential recess or groove 24 formed adjacent to but spaced inwardly from forward end face 20.
  • Second barrel member 12 includes an outer part 26 and a coaxial insert part 34.
  • Outer part 26 preferably has a rear end face 28, a straight portion 30 which extends forwardly from end face 28 and which has an outer diameter substantially equal to the outer diameter of first barrel member 10' at front end face 20 thereof, and a frustoconical portion 32 which tapers forwardly from straight portion 30 and which terminates in a forward tip 31.
  • Insert part 34 of barrel member 12 extends rearwardly from end face 28 of outer part 26 and terminates in a rear end face 46.
  • Insert part 34 preferably has an outer diameter which is slightly less than the inner diameter of longitudinal bore 16 of first barrel member 10 at its front end face 20 and is slidably received within bore 16.
  • Barrel member 12 has a coaxial bore 38 therethrough which preferably includes a forward section 38a of one substantially uniform diameter and a rear coaxial section 38b of a larger substantially uniform diameter.
  • Section 38a preferably extends through outer part 26 of barrel member 12
  • section 38b preferably extends through insert part 34 of barrel member 12 and is separated from section 3801 by an annular shoulder 39.
  • a lateral bore 36 is formed in the side wall of insert part 34 and is so spaced relative to rear end face 28 of outer part 26 thereof that it registers with groove 24 in barrel member 10 when rear end face 28 abuts front end face 20- of barrel member 10.
  • a lock member 40 is slidably disposed within bore 38 of barrel member 12 and preferably includes a rear part 42, which is positioned within enlarged section 3812 of bore 38 and which has a front face 44 and a rear face 45, and a coaxial forward end part 48, which projects forwardly from front face 44 of rear part 42 and which is received within section 38a of bore 38.
  • the outer diameter of rear part 42 is preferably slightly less than the diameter of section 38b of bore 38 in barrel member 12.
  • a recess or circumferential groove 50 is formed in the outer surface of rear part 42 of the lock member adjacent front face 44 thereof so as to be positioned forwardly of lateral bore 36 in barrel member 12 when face 44 of the lock member abuts face 28 of the barrel member 12 as shown in FIG. 3.
  • forward end part 48 of the lock member preferably extends forwardly within bore 38 in the barrel member and has its fowardmost end 52 terminating within bore 38 preferably just slightly inwardly of the forward tip 31 of the barrel member.
  • Lock member 40 has an axial bore 49 therethrough.
  • a detent 54 is disposed within lateral bore 36 in barrel member 12.
  • Detent 54 is preferably spherical, although it may be of some other configuration, such as cylindrical, and preferably has a diameter which is approximately twice the thickness of the side wall of barrel member insert part 34.
  • the depth of groove 24 in barrel member and groove 50 in lock member 40 is preferably approximately one half of the diameter of detent 54.
  • Ink cartridge 14 which is housed within the barrel members 10 and 12, is of a construction well known in the art and includes an ink-containing body part 56 which is positioned within longitudinal bore 16 of barrel member 10 and an elongated coaxial reduced forward head part 58 which terminates in a writing tip 60 and which projects through bore 49 of lock member 40.
  • Barrel member 10 also preferably has an axial bore 64 which extends from rear end face 22 to face 65 of end wall 18. Bore 64 is preferably of smaller diameter than bore 16 of barrel member 10 and receives one end 67 of a flexible attachment means, such as a cable 66. End 67 of cable 66 protrudes just inwardly beyond face 65 of end wall 18 into bore 16. A spherical stop 68 preferably is secured, as by crimping, to end 67 of cable 66 and serves to prevent cable end 67 from being withdrawn from barrel member 10. The opposite end of cable '66 is preferably attached to a pen holder 70 which has an inclined bore 72 formed therein for the receipt of the pen when it is not in use. Pen holder 70 may be bolted or otherwise anchored to a writing desk.
  • a biasing means such as a helical spring 62, is positioned to the rear of ink cartridge 14 within bore 16 in barrel member 10.
  • Spring 62 has one end engaging rear end face 63 of the ink cartridge 14 and its opposite end preferably engaging stop 68 as shown in FIGS. 3 and 4 and serves to urge ink cartridge 14 forwardly within bore 16 and against rear face 45 of lock member 40 which, in turn, is caused to abut barrel member 12 as illustrated in FIG. 3.
  • End part 78 of tool 74 is fitted over writing tip 60 of the ink cartridge and is inserted into bore section 38a of barrel member 12 where it abuts end 52 of lock member 40 and causes the lock member to be pushed or shifted inwardly into bore section 38a until groove 50 of the lock member is brought into registry with lateral bore 36 in the barrel member.
  • end part 78 of tool 74 is inserted into barrel member 12.
  • Lock member 40 is received within bore 38 of barrel member 12 with groove 50 of the lock member registering with lateral bore 36 in barrel member 12 and with detent 54 received within lateral bore 36 and seated in groove 50.
  • Insert part 34 of barrel member 12 is then inserted into longitudinal bore 16 of barrel member 10 until end face 20 of barrel member 10 abuts end face 28 of barrel member 12.
  • Tool 74 is then withdrawn from barrel member 12 to permit spring 66 in barrel member 10 to urge ink cartridge 14 and lock member 40 forwardly and thereby cause detent 54 to be cammed into groove 24 in barrel member 10.
  • FIG. 6 Another embodiment of this invention is illustrated in FIG. 6.
  • the heretofore described embodiment of FIGS. l-S is modified to the extent that an indentation or recess 82 for receiving detent 54 is substituted for circumferential groove 24.
  • barrel members 10 and 12 prevented from being separated but one barrel member cannot be rotated relative to the other barrel member when detent 54 is received within indentation 82.
  • FIGS. 7 and 8 Another embodiment of this invention is illustrated in FIGS. 7 and 8.
  • the embodiment illustrated in FIGS. 1-5 is modified to the extent that an indentation 82 is substituted for circumferential groove 24 and an aperture 84 is formed in tubular wall 19 of barrel member 10.
  • Aperture '84 has its axis lying in the same transverse plane as the center of indentation 82 and is angularly spaced from indentation 82.
  • Barrel members and 12 are separated with the aid of tool 74 in the same manner as that previously described for the embodiment illustrated in FIGS. 1-5.
  • end part 78 of tool 74 is inserted into barrel member 12.
  • Lock member 40 is fitted into bore 38 of barrel member 12 with groove 50 of the lock member registering with lateral bore 36.
  • Insert part 34 of barrel member 12 is then inserted into bore 16 of barrel member 10 until end face 20 of barrel member 10 abuts end face 28 of barrel member 12.
  • Detent 54 is then inserted through aperture 84 in barrel member 10 and into registering bore 36 where it seats in groove 50'.
  • Tool 74 is then withdrawn from barrel member 12.
  • Barrel member 12 is then rotated relative to barrel member 10 until lateral bore '36 in barrel member 12 registers with indentation 82 in barrel member 10 and the detent is cammed into indentation 82 by the spring urged forward movement of lock member 40.
  • first and second barrel members which house an ink cartridge
  • said first barrel member having a longitudinal bore therein defined by a tubular wall and an end wall, the inner surface of said tubular wall having a recess therein
  • said second barrel member having a longitudinal bore therethrough and including an insert part slidably received within the longitudinal bore in said first barrel member, said insert part having a lateral bore therein which communicates with the longitudinal bore in said second barrel member and which registers with the recess in said first barrel member
  • a lock member slidably received within the longitudinal bore in said second barrel member, said lock member having a recess therein and being shiftable between a lock position wherein its said recess is spaced from said lateral bore and a release position wherein its said recess is positioned in registry with said lateral bore
  • a detent disposed within said lateral bore and engaging said insert part, said detent having a portion which projects into the recess in said first barrel member when said lock member is positioned in its lock position, said ink cartridge
  • said lock member includes a rear end part engaged by said ink cartridge and a front end part having a reduced outer diameter, said second barrel member having a forward tip, the longitudinal bore in said second barrel member having a minimum diameter at said forward tip, the front end part of said lock member being adapted for engagement by a tool means which longitudinally shifts said lock member from its lock position to its release position.
  • said stop is substantially spherical and said biasing means engaging said ink cartridge is a helical spring disposed within the longitudinal bore of said first barrel member, said spring having one end engaging said stop and the other end engaging an end face of said ink cartridge.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
US3570284D 1969-01-09 1969-01-09 Writing pen lock Expired - Lifetime US3570284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79002569A 1969-01-09 1969-01-09

Publications (1)

Publication Number Publication Date
US3570284A true US3570284A (en) 1971-03-16

Family

ID=25149413

Family Applications (1)

Application Number Title Priority Date Filing Date
US3570284D Expired - Lifetime US3570284A (en) 1969-01-09 1969-01-09 Writing pen lock

Country Status (4)

Country Link
US (1) US3570284A (enrdf_load_stackoverflow)
JP (1) JPS4913054B1 (enrdf_load_stackoverflow)
DE (1) DE2000811A1 (enrdf_load_stackoverflow)
GB (1) GB1257819A (enrdf_load_stackoverflow)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094610A (en) * 1977-02-03 1978-06-13 Larson Wesley H Pen lock apparatus
USRE30718E (en) * 1978-12-14 1981-08-25 Rockwell International Corporation Saddle lockup for flexible printing plate
US4699536A (en) * 1986-05-29 1987-10-13 James Berman Pen and penholder combination
US4958952A (en) * 1989-09-27 1990-09-25 Willett Lance G Cable securing device
US5358348A (en) * 1992-02-03 1994-10-25 Kennedy Guy W Writing implement and holder assembly
USD352959S (en) 1993-05-13 1994-11-29 Wolff Stephen H Combined pen and holder thereof
US6167596B1 (en) * 1999-08-06 2001-01-02 James Berman Secured pen and holder
USD449857S1 (en) 2001-01-24 2001-10-30 Advance Watch Company, Ltd. Writing instrument with attachment
USD468770S1 (en) 2001-01-24 2003-01-14 Advance Watch Company, Ltd. Writing instrument
USD469122S1 (en) 2001-09-04 2003-01-21 Advance Watch Company, Ltd. Writing instrument
USD482394S1 (en) 2002-12-16 2003-11-18 Andy Chiu Writing pen with a base
US20040005187A1 (en) * 2002-02-19 2004-01-08 Bertothy Lori Renee Food basting device
US6735825B1 (en) 2002-11-18 2004-05-18 James Berman Secured pen and holder
US6773188B1 (en) 2003-06-30 2004-08-10 Pia Tamaye Flower pot pens
WO2005095121A1 (en) * 2004-03-30 2005-10-13 Spiteri, Ronald Charles Phone pen
US7150575B1 (en) 2003-10-15 2006-12-19 John Joseph Minehart Freestanding penholder
US7461989B1 (en) * 2007-11-14 2008-12-09 International Business Machines Corporation Pen retention apparatus
US20090016802A1 (en) * 2007-06-28 2009-01-15 Castoro Michael A Tethered writing pen with combination lock for un-tethering or ink refill access
USD619580S1 (en) * 2009-09-15 2010-07-13 Seiko Epson Corporation Interactive pen
USD624964S1 (en) * 2009-01-28 2010-10-05 Gustav Widstrom Pen
USD752147S1 (en) * 2014-05-27 2016-03-22 Shanghai Lees Manufacturing Co., Ltd. Pen and stylus
USD765027S1 (en) * 2014-06-03 2016-08-30 Jmtek, Llc Portable battery charger with stylus
USD819737S1 (en) * 2016-12-26 2018-06-05 Shenzhen Huion Animation Technology Co. Ltd. Pen with pen holder
USD841737S1 (en) * 2017-09-25 2019-02-26 Dell Products L.P. Pen
CN109403726A (zh) * 2019-01-04 2019-03-01 谢林轩 一种笔锁
USD857796S1 (en) * 2017-10-30 2019-08-27 Carlo A. Pisapia Pen
USD857798S1 (en) * 2017-11-03 2019-08-27 Carlo A. Pisapia Pen
USD857797S1 (en) * 2017-10-30 2019-08-27 Carlo A. Pisapia Pen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717074C2 (de) * 1997-04-23 2000-10-26 Maul Jakob Gmbh Halter für Schreibstifte

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094610A (en) * 1977-02-03 1978-06-13 Larson Wesley H Pen lock apparatus
USRE30718E (en) * 1978-12-14 1981-08-25 Rockwell International Corporation Saddle lockup for flexible printing plate
US4699536A (en) * 1986-05-29 1987-10-13 James Berman Pen and penholder combination
US4958952A (en) * 1989-09-27 1990-09-25 Willett Lance G Cable securing device
US5358348A (en) * 1992-02-03 1994-10-25 Kennedy Guy W Writing implement and holder assembly
USD352959S (en) 1993-05-13 1994-11-29 Wolff Stephen H Combined pen and holder thereof
US6167596B1 (en) * 1999-08-06 2001-01-02 James Berman Secured pen and holder
USD449857S1 (en) 2001-01-24 2001-10-30 Advance Watch Company, Ltd. Writing instrument with attachment
USD468770S1 (en) 2001-01-24 2003-01-14 Advance Watch Company, Ltd. Writing instrument
USD469122S1 (en) 2001-09-04 2003-01-21 Advance Watch Company, Ltd. Writing instrument
US20040005187A1 (en) * 2002-02-19 2004-01-08 Bertothy Lori Renee Food basting device
US6735825B1 (en) 2002-11-18 2004-05-18 James Berman Secured pen and holder
USD482394S1 (en) 2002-12-16 2003-11-18 Andy Chiu Writing pen with a base
US6773188B1 (en) 2003-06-30 2004-08-10 Pia Tamaye Flower pot pens
US7150575B1 (en) 2003-10-15 2006-12-19 John Joseph Minehart Freestanding penholder
WO2005095121A1 (en) * 2004-03-30 2005-10-13 Spiteri, Ronald Charles Phone pen
US20090016802A1 (en) * 2007-06-28 2009-01-15 Castoro Michael A Tethered writing pen with combination lock for un-tethering or ink refill access
US7461989B1 (en) * 2007-11-14 2008-12-09 International Business Machines Corporation Pen retention apparatus
USD624964S1 (en) * 2009-01-28 2010-10-05 Gustav Widstrom Pen
USD619580S1 (en) * 2009-09-15 2010-07-13 Seiko Epson Corporation Interactive pen
USD752147S1 (en) * 2014-05-27 2016-03-22 Shanghai Lees Manufacturing Co., Ltd. Pen and stylus
USD765027S1 (en) * 2014-06-03 2016-08-30 Jmtek, Llc Portable battery charger with stylus
USD819737S1 (en) * 2016-12-26 2018-06-05 Shenzhen Huion Animation Technology Co. Ltd. Pen with pen holder
USD841737S1 (en) * 2017-09-25 2019-02-26 Dell Products L.P. Pen
USD857796S1 (en) * 2017-10-30 2019-08-27 Carlo A. Pisapia Pen
USD857797S1 (en) * 2017-10-30 2019-08-27 Carlo A. Pisapia Pen
USD857798S1 (en) * 2017-11-03 2019-08-27 Carlo A. Pisapia Pen
CN109403726A (zh) * 2019-01-04 2019-03-01 谢林轩 一种笔锁

Also Published As

Publication number Publication date
GB1257819A (enrdf_load_stackoverflow) 1971-12-22
JPS4913054B1 (enrdf_load_stackoverflow) 1974-03-28
DE2000811A1 (de) 1970-08-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ROLAMECH COMPANY, INC., WISCONSIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROLAMECH PATENTS, LTD., AN IL. CORP.;REEL/FRAME:003790/0502

Effective date: 19800730