Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
  • B43M11/00—Hand or desk devices of the office or personal type for applying liquid, other than ink, by contact to surfaces, e.g. for applying adhesive
  • B43M11/06—Hand-held devices
• • 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
  • B43K27/04—Combinations of pencils
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K1/00—Nibs; Writing-points
  • B43K1/006—Porous nibs
• • 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
• • 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
  • B43K23/126—Protecting means, e.g. caps for pens with clips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
  • B43K24/10—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
  • B43K24/14—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by turning means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
  • B43K24/10—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
  • B43K24/16—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by push-buttons
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
  • B43K25/02—Clips
  • B43K25/022—Clips attached to a pen cap
• • 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
  • B43K27/02—Combinations of pens and pencils
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K29/00—Combinations of writing implements with other articles
  • B43K29/05—Combinations of writing implements with other articles with applicators for eradicating- or correcting-liquid
• • 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
  • B43K5/005—Pen barrels
• • 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
  • B43K5/02—Ink reservoirs
  • B43K5/14—Exchangeable ink cartridges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K7/00—Ball-point pens
  • B43K7/005—Pen barrels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K8/00—Pens with writing-points other than nibs or balls
  • B43K8/003—Pen barrels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K8/00—Pens with writing-points other than nibs or balls
  • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K8/00—Pens with writing-points other than nibs or balls
  • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
  • B43K8/03—Ink reservoirs; Ink cartridges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
  • B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
  • B43L19/0018—Erasers, rubbers, or erasing devices; Holders therefor with fluids
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
  • B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
  • B43L19/0056—Holders for erasers
  • B43L19/0068—Hand-held holders
  • B43L19/0075—Hand-held holders of the pencil type
  • B43L19/0081—Hand-held holders of the pencil type of the mechanical pencil type

Definitions

• the present invention relates to a writing instrument and, in particular, a writing instrument having at least two writing elements that are axially moveable with respect to one another, and more particularly, with one writing element being disposed within the other writing element.
• the present invention also relates to improvements to filler- type writing instmments.
• Writing instments having multiple writing elements are well known in the art. For the most part, these writing instments have a plurality of writing elements disposed adjacent (side-by-side) to one another within a pen barrel. Prior art writing instments have combined a variety of types of writing elements, including ball point pens, highlighters, and markers, in various combinations (e.g., all the same type, one of each, or more than one of more than one type). A drive mechanism is actuated to displace the writing tip of one of the writing elements to a position outside the barrel. In some cases, one writing instrument is already in a fixed position outside the barrel and the second. writing element is moveable.
• the moveable writing element In order for the moveable writing element to be used for writing, it must be projected out of the barrel past the distal-most portion of the fixed writing element. In other known writing instruments, the distal-most portion of the moveable writing element — when fully projected - is in the same plane as the distal-most portion of the fixed writing element. Therefore, the two writing elements can produce two lines, or a line with a thickness greater than either writing element individually. Also, if the writing elements are supplied by two different writing mediums, two different lines can be produced. [0005]
• the disadvantage of side-by-side construction is that the diameter of the pen barrel housing the writing elements must be greater than the diameter of a standard pen having only one writing element. To create a more compact writing implement, prior art devices have mounted the writmg elements coaxially (i.e., one writing element disposed within another writing element), whereby the inner writing element is moveable relative to the outer writing element.
• At least one writing element is connected to a driving mechanism.
• the driving mechanism causes axial movement of one writing element with respect to the other writing element.
• one writing element may be fixed so that at least a portion of its writing tip remains outside the bareel, allowing the writing instrument to be used to mark a writing surface.
• the other writing element is axially moveable.
• the moveable writing element is extended from the bareel so that its distal-most portion extends beyond the distal-most portion of the fixed writing element. Now, the moveable writing element can be used to mark a writing surface.
• a writing instrument is provided with a replaceable filler-type writing element having a filler-type writing medium reservoir and a porous nib.
• a fluid-impervious sleeve preferably covers at least a portion of the porous nib and/or the filler-type writing medium reservoir of the writing element. The sleeve enables the user to handle the filler-type writing medium reservoir and the porous nib without getting writing medium on his her hands and/or fingers.
• the outer barrel of the writing instmment is designed to permit access to the writing element.
• FIG. 2 is a perspective view of two writing elements that may be used in a writing instrument formed in accordance with the principles of the present invention, the writing elements being shown in isolation with one writing element inserted over the other writing element;
• FIG.3 is an exploded view of a writing instmment as in FIG. 1;
• FIG. 6 is another longitudinal cross-sectional view of an exemplary porous nib for an outer writing element in accordance with the principles of the present invention.
• FIG.9 is an exploded view of an embodiment of a front barrel engaging an exemplary driving mechanism of a writing instmment formed in accordance with the principles of the present invention
• FIG. 10 is a perspective view of another embodiment of a front bareel engaging a second exemplary driving mechanism of a writing instmment formed in accordance with the principles of the present invention
• FIG. 11 is an exploded alternative view of components making up a third embodiment of a driving mechanism of a writing instmment
• FIG. 14 is an exploded view of an exemplary cap that may be used on a writing instrument formed in accordance with the principles of the present invention
• FIG. 15 is an exploded view of another exemplary cap that may be used on a writing instrument formed in accordance with the principles of the present invention.
• FIG. 16 is an exploded view of the components of an exemplary replacement mechanism.
• FIG. 17 is a perspective view of an exemplary refill set.
• front barrel 14 can be made of ABS (acrylonitrile butadiene styrene) and back barrel 16 can be made of polypropylene.
• ABS acrylonitrile butadiene styrene
• back barrel 16 can be made of polypropylene.
• Various factors such as strength, ease of manufacturing, and ability to be decorated/painted (e.g., ability to receive mbberized paint to form a grip) may be considered in selecting the material that may be used for front barrel 14.
• various factors such as resistance to vapor transmission or air-tightness (i.e., material chosen does not allow vapor/air to flow in or out of writing instmment 10), cost, ease of manufacturing, and lubricity (i.e., smoothness; minimal to no friction for ease of moving front and back barrels 14, 16 relative to each other) may be considered when selecting material that may be used for back barrel 16.
• inner writing element 20 can be a pencil, stylus, chalk, charcoal, lead, or any other type of writing element using a solid-type writing medium.
• inner writing element 20 may be selected to have as small an outer diameter as possible. In such case, inner writing element 20 would generally not have a filler-type writing medium reservoir, as such reservoirs tend to occupy more space than a tube-type writing medium reservoir to hold a given amount of writing medium.
• any writing element utilizing a tubular reservoir for holding writing medium, or any solid-type writing medium may be used to keep the overall diameter of writing instmment 10 as close to that of a standard single-writing-element writing instmment.
• First writing medium reservoir 28 can be a writing medium tube or ink tube
• the writing medium tube has no filler material for holding writing medium.
• the first writing medium reservoir 28 can also be a filler-type writing medium reservoir (not shown) - e.g., filler material saturated with marking medium.
• Second writing medium reservoir 34 may, however, also be filler-less - similar to a writing medium tube, hi one embodiment, the outer writing element can be a highlighter or marker. But, other writing elements may be used instead.
• second writing tip 32 may be a porous nib.
• a porous nib As used herein, a
• porous nib is a deflection-resistant porous application tip that is typically rod-shaped, with a pointed or chiseled free end, and that delivers writing medium from a reservoir to a surface (e.g., paper), typically by capillary action.
• the porous nib may be formed from any desired porous material, such as polymers (natural or synthetic) or ceramics, using conventional forming processes such as sintering, blow molding, extmsion, fiber bundling, or the like.
• various factors such as cost, strength, rigidity, density, porosity, chemical stability (e.g., resistance to corrosion or break-down of writing medium or components in contact with writing medium), amount of time for the nib material to dry out, and ease of manufacturing may be considered when selecting materials that may be used for the porous nib.
• distal porous nib portion 33 may have different profiles.
• distal porous nib portion 33 can be angular or straight.
• the angle 35 between a writing surface (not shown) and distal porous nib portion 33 is known as the angle of the chisel, which can be any angle typically approximately more than 0° or typically approximately less than 90° (0° forming a straight distal porous nib portion 33, as illustrated in FIG. 5, and 90° forming a flat distal porous nib portion (not shown)).
• a preferred exemplary angle of distal porous nib portion 33 is approximately 30°.
• second writing tip 32 may have a cross-section that is round, square, conical, fmstroconical, etc.
• distal porous nib portion 33 is shaped and configured (e.g., by selecting an appropriate angle and thickness) to permit uniform marking without a "railroad" effect such as two lines with no marking therebetween.
• reservoirs 28, 34 can contain different writing mediums or exhibit different characteristics, such as different colors.
• first and second writing medium reservoirs 28, 34 may be selected to have a writing capacity not significantly lower than that of a writing instmment with a single writing element having the same type of writing medium reservoir.
• inner writing element 20 is a ball point pen and outer writing element 22 is a highlighter
• inner writing element 20 and outer writing element 22 preferably have the same writing capacity as a standard ball-point and a standard highlighter, respectively.
• a ballpoint pen according to current industry standards can draw a line approximately 1800 meters in length; a highlighter according to current industry standards can draw a line approximately 120 meters in length.
• outer writing element 22 loses valuable space to inner axial passage 24, such a requirement affects the maximum desirable outer diameter of outer writing element 22, and consequently, the maximum desirable outer diameter of writing instmment 10.
• the writing capacity may be optimized while keeping the reservoirs within the desired size limitations by manipulating various factors, such as the combination of materials making up the outer writing element, the wall thicknesses of the elements, and overall dimensions of the pen. Based on average usage of ball point pen and highlighters, a writing capacity ratio of approximately 10:1 is desirable ⁇ i.e., preferably, writing instmment 10 provides approximately 10 meters of ball point pen line for every approximately 1 meter of highlighter line. It will be appreciated that the desired reservoir capacity may be affected by the desired outer diameter and/or length of the finished writing instmment, and other such factors appreciated by those of skill in the art.
• Driving mechanism 60 includes two driving components ⁇ a mobile, female cam 62 and an axially stationary male cam 64. It will be appreciated that interactions of various components of driving mechanism 60 with respect to components of writing instmment 10 are applicable to other driving mechanism embodiments described herein.
• Mobile cam 62 can be made of polyamide (e.g., Nylon) or polyacetal (e.g., Delrin), and male cam 64 can be made of polyacetal (e.g., Delrin).
• other materials can be used to make mobile cam 62 and male cam 64.
• Various factors such as strength, rigidity, and lubricity (i.e., smoothness) may be considered when selecting materials that may be used for cams 62 and 64.
• driving mechanism 60 operates to move outer writing element 22 with respect to inner writing element 20.
• Inner writing element 20 may be fixed with respect to outer barrel 12, or may be arranged for axial movement as well.
• outer writing element 22 can be operatively coupled to mobile cam 62 and inner writing element 20 may be coupled to male cam 64 or outer barrel 12.
• Outer writing element 22 can be held by longitudinal ribs (not shown) in mobile cam 62.
• the longitudinal ribs can cut into the filler-type writing medium reservoir and/or filler material.
• inner writing element 20 can be inserted into a bore (not shown) in male cam 64 or may be coupled to outer barrel 12 in another manner to permit axial movement with respect to outer writing element 22.
• Inner writing element 20 may be arranged in male cam 64 so that proximal end 73 of inner writing element 20 does not extend past male cam 64.
• an optional biasing element such as a coil spring 61 (FIG. 3), can be positioned around second writing tip 32 between shoulder 37 (FIGS. 3, 5 and 6) of second writing tip 32 and front nose cone 23.
• spring 61 when outer writing element 22 is extended into a writing or marking position, spring 61 is compressed. When compressed, spring 61 essentially functions as an outer tubular support for second writing tip 32. The provision of a spring thus adds structural stability to second writing tip 32, and thereby further addresses the desire to assure that a hollow writing tip 32 is sufficiently structurally stable to write or mark effectively.
• male cam 64 may be fixed to back bareel 16 so that rotation of back barrel 16 causes rotation of male cam 64 (preferably generally corresponding to the rotation of back barrel 16) without causing axial movement of male cam 64.
• male cam 64 can be fixed to back barrel 16 in numerous ways, in the embodiment of FIG. 9, insertion member 70 can be press-fitted into inner receiving member 29 (FIG. 4).
• Engaging flats 169 may be provided on male cam 64 to engage back barrel receiving flats 69 (FIG. 4).
• FIG. 16 illustrates another embodiment in which a male cam 364 is fixed to back barrel 316 by engaging protmsions 385 in notches 386, and by engaging flats 369 in back barrel receiving flats 391.
• Mobile cam 62, 362 is free to move with respect to back bareel 16, 316.
• Mobile cam 62, 362 is also free to move axially, but not rotationally, with respect to front barrel 14 to extend or to retract a writing element 20, 22.
• mobile cam 62 may have a single prong engaging a single prong receiving structure (not shown) of front barrel 14.
• front barrel 14 may have a single prong engaging a single prong receiving stmcture (not shown) of mobile cam 62.
• any means of attaching mobile cam 62 to front barrel 14 may be used.
• the configuration of the driving mechanism at least allows movement of mobile cam 62 along the axis of front barrel 14.
• prongs 173, 174 on mobile cam 62 can be provided with guides 177, 178, respectively.
• Rail members 179, 180 are provided on front barrel 14, such as on barrel prongs 175, 176.
• protmsions 277 disengage first group of receiving members 278 and, once mobile cam 162 has moved axially to extend one of writing elements 20, 22, protmsions 277 engage second group of receiving members 279. Such engagement stops further extension of the at least one writing element 20, 22 beyond the other writing element 20, 22. It will be appreciated that configurations of engaging elements other than those illustrated, but formed to effect movement of mobile cam 162, are within the scope of the present invention.
• driving mechanism 260 may be moveably coupled to front barrel 14.
• non-circular cross-section 50 e.g., oval
• Cross-section 50 would allow for axial, but not rotational movement of mobile cam 262 and outer writing element 22 in an embodiment where the inner surface of front barrel 12 has a non-circular cross-section as well. It should be noted, however, that any other manner of preventing rotation of mobile cam 262 with respect to front barrel 14 may be implemented as well.
• front barrel proximal portion 21 may be coupled to back bareel distal portion 18 so as to permit relative rotational movement of barrels 14, 16, while inhibiting relative axial movement.
• front barrel 14 may have external circumferential ribs 15.
• back barrel 16 may have internal circumferential ribs 17. It is desirable that ribs 15, 17 are positioned to prevent axial movement of barrels 14, 16, with respect to each other, while still allowing for rotational movement of barrels 14, 16 with respect to each other.
• each external circumferential rib 15 may be positioned adjacent to an internal circumferential rib 17.
• at least one external rib 15 can be positioned between two internal ribs 17.
• at least one internal rib 17 can be positioned between two external ribs 15.
• Such a configuration prevents front barrel 14 and back barrel 16 from moving apart.
• an O-ring (not shown) may be positioned inside back barrel distal portion 18 (other locations are also contemplated).
• An O-ring can provide smooth movement of barrels 14, 16 relative to each other and help prevent evaporation of writing medium (i.e., prevent writing elements 20, 22 from drying out).
• back bareel 16 can have a pair of internal circumferential ribs 17 with an O-ring or one circumferential rib 17 with an O-ring.
• the O-ring may be made of silicon rubber or any other suitable material.
• Various factors ⁇ for example, ability to provide a good seal and smooth movement between front and back barrel 14, 16 — can be considered when selecting a suitable material to be used for the O-ring.
• rib 19 (FIG. 3) may be provided on front barrel proximal portion 21 to abut back barrel distal portion 18 and thus to inhibit excessive distal movement of back barrel 16.
• a writing instmment cover for example, cap 90 or 290 shown in FIG. 14 and 15, respectively, and described in further detail below
• Exemplary driving mechanism 60, 160, 260, 460, 560 may be located at proximal end 43 or distal end 41 of writing instrument 10 (FIG. 1), or anywhere in between.
• the driving mechanism 60, 160, 260, 460, 560 is located at proximal end 43 of writing instnce 10 so as not to interfere with the components and arrangement of writing elements 20, 22.
• Driving mechanism 60, 160, 260, 460, 560 or components thereof, may be directly accessible for actuation, for example, either by an opening in outer bareel 12 or by driving mechanism 60, 160, 260, 460, 560 not being covered by an outer barrel 12 at all.
• outer writing element 22 in order to allow for axial movement of writing elements 20, 22 with respect to each other, outer writing element 22 has an inner axial passage 24 (FIG. 2) that is larger than the outer diameter of inner writing element 20.
• inner axial passage 24 FOG. 2
• rigidity of inner writing element 20 and the support provided by outer writing element 22 thus are preferably selected to minimize wobbling. While inner writing element 20 may obtain some support from inner axial passage 24 of outer writing element 22, outer writing element 22 may provide only minimal stabilization to counter wobbling. Therefore, it is generally desirable to exhibit care in selecting the rigidity of writing elements 20, 22.
• the minimum thickness can be approximately 0.05 mm.
• the maximum thickness is generally dictated by the maximum thickness of writing instmment 10 and may be approximately 0.5 mm.
• Another benefit of a heat-shrinkable sleeve over an injection molded sleeve is that a heat-shrinkable sleeve facilitates assembly.
• cartridge case 418 formed of a material that prevents seepage of writing medium therethrough - may be provided over the filler-type outer writing element 22 instead of a sleeve 80.
• protmsions 385 slide into notches 386 in back bareel 316.
• end button 380 is screwed further onto external thread 381, tapered surface 389 is drawn into back barrel 316, creating a preferably air-tight fit between back barrel 316, male cam 364, and end button 380.
• Rotation of end button 380 onto male cam 364 stops when end button engagement surface 387 contacts back bareel engagement surface 388.
• male cam 364 may further include a sealing ring 390 to create an air-tight seal between male cam 364 and back bareel 316, thereby preventing the writing medium of writing elements 20, 22 from evaporating. Such an air-tight seal is particularly important when one or both of the writing elements carries a volatile writing medium.
• FIG. 17 illustrates one example of a refill set 400, which may include writing elements 20, 22; mobile cam 362; and male cam 364. It should be noted that mobile cam 362 and/or male cam 364 can be reused while only writing elements 20, 22 are replaced.
• cap 290 as illustrated in FIG. 15 may be used.
• Cap 290 can be made of ABS or polypropylene (but other materials are also envisioned). Similar to cap 90, various factors such as ability to be welded or painted/decorated, resistance to vapor transmission or air-tightness, cost, and ease of manufacturing can be considered in selecting material to be used for cap 290.
• Cap opening 294 can be placed over distal end 41 of writing instmment 10 and may be fixed thereto by engaging rib 19 on front barrel 14 (FIG. 3).
• a vapor seal 292 may also be provided within cap 290 to prevent evaporation of the writing medium.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Pens And Brushes (AREA)
• Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Related Child Applications (1)

Publications (1)

Family

ID=34595367

Family Applications (1)

Country Status (8)

Families Citing this family (10)

Family Cites Families (5)

• 2004
  • 2004-11-09 AR ARP040104135A patent/AR047562A1/es unknown
  • 2004-11-10 AU AU2004288817A patent/AU2004288817A1/en not_active Abandoned
  • 2004-11-10 WO PCT/US2004/037664 patent/WO2005047016A2/en not_active Ceased
  • 2004-11-10 BR BRPI0416456-3A patent/BRPI0416456A/pt not_active IP Right Cessation
  • 2004-11-10 RU RU2006120401/12A patent/RU2350475C2/ru not_active IP Right Cessation
  • 2004-11-10 KR KR1020067011301A patent/KR20060108708A/ko not_active Ceased
  • 2004-11-10 EP EP04810763A patent/EP1684992A2/en not_active Withdrawn
  • 2004-11-10 CA CA002545449A patent/CA2545449A1/en not_active Abandoned

Non-Patent Citations (1)

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