US3806262A - Dispensing apparatus - Google Patents

Dispensing apparatus Download PDF

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Publication number
US3806262A
US3806262A US00238326A US23832672A US3806262A US 3806262 A US3806262 A US 3806262A US 00238326 A US00238326 A US 00238326A US 23832672 A US23832672 A US 23832672A US 3806262 A US3806262 A US 3806262A
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US
United States
Prior art keywords
tubular member
barrel
resilient
translating
stick
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
US00238326A
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English (en)
Inventor
C Chaudoir
T Cousins
K Nagy
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
Priority to US00238326A priority Critical patent/US3806262A/en
Priority to FR7310803A priority patent/FR2178655A5/fr
Priority to US395137A priority patent/US3897160A/en
Application granted granted Critical
Publication of US3806262A publication Critical patent/US3806262A/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
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms

Definitions

  • ABSTRACT Apparatus for dispensing material from a tubular member may comprise a translating member disposed .within the tubular member responsive 'to forces applied to the exterior of the tubular member to axially advance, in one direction, through the tubular memher.
  • the translating member is mounted within a flexible tubular pencil barrel adjacent one end of a stick of writing material longitudinally disposed in the barrel. The translating member is responsive to deformation forces applied to the pencil
  • the present invention pertains to apparatus for dispensing material from a tubular member.
  • it concerns apparatus suitable for axially advancing a material through ,a tubular member for dispensing through one end thereof.
  • *th.e present invention pertains to simplified translating apparatus suitable for feeding a pencil lead out the end of a pencil barrel.
  • Mechanical pencils have beenknownfor many years. Such pencils eliminate the necessity of having to frequently sharpen the pencil as with the common wooden pencil: However, one disadvantage of the mechanical pencils heretofore developed is that they are relatively expensive in comparison with wooden pencils.
  • a simplified translating mechanism for dispensing material from a tubular member in which the translating member is disposed.
  • the translating member may comprise a central body portion from which a resilient portion projects radially for engagement with the intemal wallsof the tubular member.
  • the tubular member is deformable "on the application of external forces thereto to cause alternate deformation and restoration of the resilient por tion of the translating member.
  • the resilient portion can takelthe form of a frusto-conical skirt, a plurality of f ngers, or other shapes, slanting in a rearwardly dr rection relative to the direction of desired axial advance.
  • one object of the invention is to'pro vide a mechanical pencil which is simple to operate and very inexpensive to manufacture. Another object is to provide a pencil which is safer than other mechanical pencils.
  • FIG. 1 is a perspective view of a simplified mechanical pencil employing atranslating mechanism according to apreferredembodiment of the invention
  • FIG. 2 is across-sectional view of another variation of the translating mechanism" of the invention "shown in aflexible tubular member which has beenovaled or deformed by pressing on opposite sides thereof;
  • FIG. 3, taken along line 33 of FIG. 2, is a longitudinal section of the deformed tubular and translating members of FIG. 2, taken along'the minor diameter thereof; 7 I 5 FIG. 4, taken along line. 4-4 of FIG. 2, is a 'longitudi nal section similar to FIG. 3 except being taken along the majordiameter thereof; and
  • F IG. 5 is a perspective view of the portion of a tubular member in which is disposed a translating mechanism according to still another variation thereof.
  • FIG. 1 there is shown a tubular pencil barrel l0'inwhich is longitudinally disposed a writing stick or pencil lead 12.
  • the pencil barrel I0 is provided with a frusto-conicaltip I4 through the end of which is provided a cylindrical aperture :or passage 16.
  • the tip 14 canbe separately manufacturedof metal orany othersuitable material. Howevenit can be integrally formed with the T6St 0f the barrel 1 0.
  • Thebarrel 10 is preferably of a flexible material such as plastic and maybe formedby extruding.
  • Thepencilitip 14 can also be provided witha countersunk frusto-conical funnel or guide cone 18 to facilitate feeding of lead through the aperture 16.
  • the rearwardendof the lead stick '12 is affixed to a translating mechanism 20 which is longitudinally disposed within the barrel 10.
  • the translating mechanism 20 can take several forms.
  • the one shown in FIG. 1 has a cylindrical body portion 21 at the forward end of which is a frusto conical guide nose22and at the rearward end of which is a frusto-conical skirtportion 23.
  • the diameterofthe body portion 21 and the minor diameter of the frustoconical skirt 23 is less than the internal diameterof the barrel 10.
  • the major diameter. of the frusto conical skirt 23, inits free state, is greater than the internal diameter of barrel 10.
  • the translating member 20 is of a resilient material, such as rubber, and when it is insertedinto thepencil barrel 10 from the end opposite tip 14, the-skirt 23 is compressed or deformed by the walls of the barrel 10.
  • the rear end of translating member may be countersunk'or hollowed out such as shown at to make the lip 27 at the base of skirt 23 more flexible.
  • the barrel By grasping the pencil barrel 10 near the translating mechanism 20 and applying an external force thereto, by finger pressure, the barrel will be deformed so that its cross section at that point has an oval shape such as the barrel shown in FIG. 2.
  • a portion of the skirt member 23 is deformed or flexed inwardly.
  • the barrel is released, its circular cross section is restored.
  • the" deformed portion of the skirt 23 expands.
  • the skirt 23 flares rearwardly, it resists movement in the rearward direction.
  • the expansion of the skirt, or return to its initial position exerts a force in the forward axial direction, causing the body portion 21 and consequently lead stick 12 to be advanced a short distance. Forces can be alternately applied to and released from the barrel or the barrel can be rolled between the fingers to repeat the cycle. 1
  • FIGS. 2-4 another embodiment o the invention will be shown which will further illustrate the step by step advancing concept utilized in the invention.
  • the translating mechanism 40 of this particular embodiment is shown disposed in a flexible tubular member 30, such as the barrel 10 in FIG. 1. It also comprises a central body portion 41. However, instead of a frusto-conical skirt, such as 23 in FIG. 1, a plurality of resilient fingers 43 project radially therefrom for contact with the tubular body 30 in much the same manner as the frusto-conical skirt 23 of FIG. 1. In the illustration shown, there are two sets of four fingers each oriented at 90 to each other.
  • the translating mechanism 40 is placed inside the tubular body 30, which has a diameter slightly less than the diameter of a circle enclosing the tips of fingers 43 in their free standing position. Ovaling the body 30, around the translating member 40, increases the preload and grip of the fingers 43 on the minor axis' while relieving the preload on the major axis, allowing the fingers '43 on the major axis to. spring forward and outward, as shown in FIG. 4. Restoring the tube to its nondeformed shape, causes the extended fingers 43 to grip the body walls, preventing backward motion and pulling the other fingers 43 forward along the central body portion 40.
  • translating member is disposed can be of any axisymmetric configuration as long as it can be significantly deformed without permanent set. There are, of course, a number of translating member shapes which will also function. Conical frustums such as shown in FIG. 1 and angled fingers or wires such as shown in FIGS. 2-4 can be used individually or in many combinations. In FIG. 5 an alternate variation is shown having a central body portion 50 and a pair of frustoconical sections 51 and 52. Lips 54 and 55 at the base of each of the frusto-conical sections engagethe internal wall of a tubular member 60 in the same manner as the ends of fingers 43 in the embodiment of FIGS. 2-4 and the lip 27 of the skirt portion 23 of FIG. 1.
  • a pencil embodying the present invention can be much safer than other" mechanical pencils.
  • the material selected can be adequately stiff for normal handling and use yet soft enough to collapse if struck sharply (as with a child falling on the pencil). During the collapse of the barrel, the lead stick will break harmlessly within the barrel.
  • the unique translating mechanism disclosed herein can be used, of course, not only with pencils, but in any other application which requires the dispensing of a material from a tubular container.
  • it is ideally suited for dispensers for lubricants, adhesives, medicines, drugs, cosmetics, etc.
  • the common lipstick or lip balm would be ideally suited for such a mechanism.
  • Components of a pencil or dispenser may, according to the present invention, all be made from plastics which are amenable to mass production at very low unit cost. There are no close tolerance parts and the materials are not critical.
  • the tubular body can be a simple extrusion of elastic material such as plastic, metal, rubber, etc.
  • the translating mechanism or piston can be an injection molded part or machined from similar elastic material. The unique mechanism of themvention utilizes only two simple components. 2
  • Apparatus for dispensing material from a tubular member comprising resilient means disposed within said tubular member responsive to radial forces applied to the exterior of said tubular member, around said resilient means, to axially advance through said tubular member in one direction only.
  • Apparatus for dispensing material from a tubular member comprising resilient means disposed within said tubular member responsive to radial forcesapplied to the exterior of said tubular member, around said resilient means, to axially advance through said tubular member, said resilient means including a central body portion from which radially projects projection means for engagement with the internal walls of said tubular member, said projection means being deformable on alternate deformation and restoration of said tubular member caused by application of said external forces to advance said body portion through said tubular member.
  • said projection means comprises a plurality of. finger means projecting from said body portion in a rearward direction relative to said axial advance.
  • said finger means is of a resilient material bendable from a first position, in said rearward direction, to a second position on said deformation of said tubular member therearound and returnable to said first position on said restoration of said tubular member causing'said central portion to be advanced by an increment.
  • a pencil comprising: a flexible tubular barrel; a stick of writing material longitudinally disposed in said barrel; and resilient translating means engaging said stick within said barrel responsive to radial deformation forces applied to said barrel around said translating means to axially advance said stick and said translating means through said barrel in one direction only.
  • a pencil comprising: a flexible tubular barrel; a stick of writing material longitudinally disposed in said barrel; and resilient translating means engaging said stick within said barrel responsive to radial deformation forces applied to said barrel around said translating means to axially advance said stick through said barrel, said' translating means comprising'a central body portion from which radially projects resilient means for engagement with the interior of said barrel.
  • a pencil as set forth claim Sin which said resilient means comprises a frusto-conical skirt converging toward the direction of said axial advance, the major diameter of said skirt being greater than the internal diameter of said barrel.
  • a pencil as set forth in claim 9 in which said resilient means comprises a plurality of fingers slanting in a rearward direction relative to said axial advance.
  • Apparatus for dispensing material from a tubular member comprising resilient translating means disposed within said tubular member responsive to compressiveradial forces alternately applied around the periphery of said tubular member to axially advance through said tubular member, said translating means being provided with means engaging said tubular member allowing only uni-directional advancement of said translating means in response to said alternately applied radial force.
  • Apparatus as set forth in claim 12 in which said material to be dispensed comprises a stick of writing material disposed within said tubular member and engaging said translating means.

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  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
US00238326A 1972-03-27 1972-03-27 Dispensing apparatus Expired - Lifetime US3806262A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00238326A US3806262A (en) 1972-03-27 1972-03-27 Dispensing apparatus
FR7310803A FR2178655A5 (enrdf_load_stackoverflow) 1972-03-27 1973-03-26
US395137A US3897160A (en) 1972-03-27 1973-09-07 Pencil apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00238326A US3806262A (en) 1972-03-27 1972-03-27 Dispensing apparatus

Publications (1)

Publication Number Publication Date
US3806262A true US3806262A (en) 1974-04-23

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Application Number Title Priority Date Filing Date
US00238326A Expired - Lifetime US3806262A (en) 1972-03-27 1972-03-27 Dispensing apparatus

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US (1) US3806262A (enrdf_load_stackoverflow)
FR (1) FR2178655A5 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897160A (en) * 1972-03-27 1975-07-29 Berryhill Bill B Pencil apparatus
DE3040726A1 (de) * 1979-10-29 1981-05-07 Pentel K.K., Tokyo Schreiber-mechanik
US20100017993A1 (en) * 2008-07-22 2010-01-28 Lychwick Kurt P Rotational scratch-off card surface remover

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1647536A (en) * 1926-04-19 1927-11-01 Faultless Rubber Co Pencil holder
US2978722A (en) * 1957-08-14 1961-04-11 Kusakabe Hisao Tube container
GB908437A (en) * 1958-12-10 1962-10-17 Bromo Mint Company Improvements in or relating to paint sticks, crayons, or the like
US3521795A (en) * 1968-03-04 1970-07-28 Bahl Associates Full discharge dispensing container
US3576374A (en) * 1969-03-10 1971-04-27 Leila J Lile Pencil operating mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1647536A (en) * 1926-04-19 1927-11-01 Faultless Rubber Co Pencil holder
US2978722A (en) * 1957-08-14 1961-04-11 Kusakabe Hisao Tube container
GB908437A (en) * 1958-12-10 1962-10-17 Bromo Mint Company Improvements in or relating to paint sticks, crayons, or the like
US3521795A (en) * 1968-03-04 1970-07-28 Bahl Associates Full discharge dispensing container
US3576374A (en) * 1969-03-10 1971-04-27 Leila J Lile Pencil operating mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897160A (en) * 1972-03-27 1975-07-29 Berryhill Bill B Pencil apparatus
DE3040726A1 (de) * 1979-10-29 1981-05-07 Pentel K.K., Tokyo Schreiber-mechanik
US20100017993A1 (en) * 2008-07-22 2010-01-28 Lychwick Kurt P Rotational scratch-off card surface remover

Also Published As

Publication number Publication date
FR2178655A5 (enrdf_load_stackoverflow) 1973-11-09

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