US3474703A - Capillary devices - Google Patents

Capillary devices Download PDF

Info

Publication number
US3474703A
US3474703A US548870A US3474703DA US3474703A US 3474703 A US3474703 A US 3474703A US 548870 A US548870 A US 548870A US 3474703D A US3474703D A US 3474703DA US 3474703 A US3474703 A US 3474703A
Authority
US
United States
Prior art keywords
filaments
braid
capillary
comprised
bonding
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
US548870A
Other languages
English (en)
Inventor
William J Davis
Richard O Church
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.)
Arthur D Little Inc
Original Assignee
Arthur D Little Inc
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 Arthur D Little Inc filed Critical Arthur D Little Inc
Application granted granted Critical
Publication of US3474703A publication Critical patent/US3474703A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/12—Writing-points comprising fibres; Felt pads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06Q—DECORATING TEXTILES
    • D06Q1/00—Decorating textiles
    • D06Q1/04—Decorating textiles by metallising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/12—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. by wicks
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]

Definitions

  • This invention relates to capillary devices adapted for use in the transmission of fluids and, more particularly, to those capillary devices that are comprised of a plurality of filaments, and methods for their manufacture.
  • filaments can be bundled together in such a manner as to form small capillary spaces between the various filaments. These have been and continue to be used in many successful applications, such as for wicks and the like. Recently, it has proved especially desirable to prepare such capillary devices from filaments made from the various synthetic resinous materials that are readily available in fibrous form.
  • the polyamides, polyesters, polyacetals, polyolefins, polyvinyl chlorides, and the polycarbonates may be mentioned. Fibers prepared from these resins are particularly advantageous in forming capillary devices since they are relatively inert in common environments; they have good strength; they wear well; they can be prepared in given and uniform diameters; and they can be bonded together with facility. By and large, these advantages are not obtained when natural organic filaments, such as prepared from cotton or wool, are used.
  • capillary conduits In the preparation of capillary conduits from filaments, it is conventional to arrange a plurality of them in spaced relationship to each other to form capillary openings for conducting fluids between the several filaments.
  • one simple type of capillary device of this sort can be prepared by axially orienting a bundle of filaments and bonding the various filaments to each other at their points of tangency. The bonding can be accomplished by any conventional means, such as by gluing; by fusing, either using heat or solvents; or various combinations thereof.
  • the manner and degree to which the various filaments are bonded to each other assumes considerable importance and may affect to a significant degree the properties of the capillary device. Not only does the bonding secure the filaments in spaced relationship to each other to establish the capillary spaces, but also the degree of bonding affects the stiffness and strength of the bundle and the flow characteristics of fluids through the bundle.
  • capillary devices The physical and mechanical properties of these capillary devices are especially important when the capillary device not only serves as a conduit for the transmission of fluids, but also, one of its ends is used to apply and 3,474,703 Patented Oct. 28, 1969 distribute fluids over a surface. Lubricating wicks and pen points are common illustrations of these.
  • the capillary device In these applications, in addition to providing for an adequate flow of fluid, the capillary device must have good mechanical properties and a firm, non-wearing applicator tip. Since this type of utilization is the most critical and has the most stringent requirements, the following description of the invention is particularly directed to the preparation of capillaries for use in these applications.
  • these devices may also find utility for many other purposes, such as in transmitting lubricating fluids, both as a permanent lubrication line leading from a sump to a bearing and as a line for intermittent use as with an oil can; as transmission lines for feeding various liquid fuels; for transmitting and applying medicinal and cosmetic products; for transmitting water, such as in humidifying devices; and multivarious other purposes that will readily occur to those skilled in the art.
  • a further restriction upon the performance of these capillary devices lies in the fact that since the filaments are axially oriented and bonded at their lines of tangency, only axial flow of fluids can take place and radial flow is substantially excluded. This may be of consequence both at the feed end and at the applicator end of the capillary device.
  • Another object of this invention is to provide methods and means for bonding filaments together to form a strong capillary device while not unduly restricting the capillary spaces between the various filaments.
  • Yet another object of this invention is to prepare a capillary conduit for the transmission of fluids which communicates with a source of fluid at one end and serves to apply and distribute the fluid onto a desired surface at the other end.
  • Still another object of this invention is to provide capillary devices having high feed rates that are comprised of a plurality of filaments securely bonded together to provide good mechanical properties of strength, stiffness and wear.
  • Still another object of this invention is to provide novel means for securing filaments together in the form of improved capillary devices that have high strength and stiffness, good characteristics of wear, good characteristics of fluid transmission, and strong, longwearing applicator points.
  • Yet another object of this invention is to provide fine, long-wearing tips for writing instruments.
  • Yet another object of this invention is to provide capillary devices comprised of bonded filaments that will enable fluids to pass in both radial and axial directions therethrough.
  • these and other objects of this invention are achieved by weaving filaments into a braid and then adhering adjacent filaments of the braid to each other as by the use of heat, solvents, adhesives, or the like. If the filaments are adhered to each other in a proper manner, as described in detail below, it has been discovered that a capillary device combining properties of good fluid flow and high strength can be produced.
  • FIG. 1 is a side view of the capillary device of this in vention.
  • FIG. 2 is a view taken through line 22 of FIG. 1.
  • FIG. 1 there is shown a braided capillary device 1 suitable for the transmission and application of fluids.
  • One end of the device 1 has been reduced in diameter and given a rounded tip as would be desirable, for example, if the device 1 is to be used as a writing in strument.
  • FIG. 2 illustrates the construction of the device of FIG. 1 in which the braided device 1 is comprised of an outer braid 2 braided around an inner braid 3.
  • capillary devices In preparing capillary devices in accordance with this invention, it may be found useful to use a plurality of concentric braids. By this means, small diameter filaments may be utilized to provide a small diameter braid, and by braiding concentric layers over the initial braided structure, a capillary device of the desired diameter can be built up.
  • the filaments can be braided around a core piece which, after the braid has been bonded, can be removed from the center of the braid.
  • a fine filament that will be unaffected by the bonding agent can be used as the core piece and pulled out of the center of the braid after the braid has been bonded.
  • a soluble filament can be enclosed in the central portion r of the braid and removed by a dissolution process.
  • the braided construction can be bonded together to form a strong mechanical structure
  • the flow through the capillary device will also depend upon the diameter of the filaments used in preparing the braid. It can be appreciated that the larger the diameter, the larger will be the open areas between the various filaments of the braid and, accordingly, the greater will be the rate of flow. Also, some control over the open areas can be obtained by using filaments having differing diameters or filaments having non-circular cross sections (multi-lobal). In both cases, the geometry of the cross section of the capillary will be affected. The desired fineness of the tip of the capillary must also be considered when selecting the diameter of the filaments.
  • the braided filaments of this invention may be comprised of many different materials.
  • these filaments may be made of synthetic resinous materials, metals and metal alloys, ceramics, silicates, and the like. It can be appreciated that by selecting the appropriate material, the physical and chemical characteristics of the bonded braid can be varied through a whole spectrum of properties. As different techniques are often required in bonding the filamenis of the braid together when different classes of materials are used, some of the preferred methods for utilizing the major classes of these materials are discussed separately below.
  • Synthetic resinous filaments If synthetic resinous materials are to be used as the filaments of the braid, they should be selected with regard to the desired physical and chemical properties of the capillary device. For example, if high strength, long wear and chemical resistance are required, filaments comprised of polyamides, polyacetals and polycarbonates may prove most useful. On the other hand, if the primary requisite is a low coeificient of friction, filaments prepared from polyolefins or polytetrafluoroethylene advantageously may be selected.
  • filaments comprised of different resins are included within the braid.
  • a major portion of the filaments in the braid can be comprised of a polyamide to provide for strength and long wear, while a minor portion of the fibers can be comprised of polyethylene to provide for a low coeflicient of friction.
  • the lubricity of polyethylene can be enjoyed without significantly sacrificing the mechanical properties of a polyamide.
  • the braid may be comprised in part of soluble filaments such as those comprised of polyvinyl alcohol. Since the polyvinyl alcohol filaments may be leached out of the braid by means of a water bath, the number and size of the capillary openings within the capillary device can be adjusted by the number of leachable filaments used in preparing the braid.
  • the braid may include filaments, either natural or synthetic, that will be unaffected by the bonding operation.
  • the braid may be comprised of a mixture of polyamide and cotton filaments. This braid may then be subjected to an intensive bonding operation by placing the braid in a solvent for the polyamide, such as resorcinol.
  • a solvent for the polyamide such as resorcinol.
  • the filament After a suitable filament has been selected and braided, the filament must be bonded together, as noted above, to obtain the desired mechanical properties. While it is possible to achieve a bond between the filaments by means of adhesives or by heat, it has been found that finer control can generally be exercised over the bonding operation by using solvents to fuse the resinous fibers together.
  • the bonding is restricted only to the points of contact at the intersection of the various filaments. It has been found that this ideal condition can be approached most readily if a solvent is caused to be effective in a relatively short period of time and rapidly absorbed into the filaments. Accordingly, it has been found useful, after the braided structure has been contacted with a solvent, to expose the braid to high temperatures to effect solvation as rapidly as possible. To be effective, these temperatures will frequently approach the melting point of the resinous filaments. After the solvent has been absorbed into the filaments and the bonds have been established, the braid can be immersed in another fluid to remove any excess solvent from the braided structure.
  • the rapidity with which the solvation takes place will also be affected by the solubility of the filaments in the solvent. As mentioned above, it is generally preferable to cause the solvation to take place as rapidly as possible, and a solvent that has a ready aflinity for the resinous materials should usually be selected.
  • the penetration of the solvent into the braid will be affected by the viscosity of the solvent. It can be appreciated that a low viscosity solvent or solvent solution will penetrate the interstices of the braid with much greater rapidity than a high viscosity solvent. Thus, it may be useful to adjust the viscosity of the solvent by means of any compatible thixotrope to control the depth of solvation into the braid. For a like reason, the use of a surface active agent to alter surface tension may be desirable.
  • Another interesting and useful technique by which the degree of open area of the capillaries may be controlled is through the use of interfering materials added to the bonding agent.
  • interfering materials added to the bonding agent.
  • the soluble materials may be removed after the filaments have been bonded together. By so leaching out the soluble materials, a certain amount of open area will result that otherwise might have been blinded by the action of the solvent or adhesive.
  • the interfering materials are porous themselves, it may not be necessary to remove them from the interstices of the braid after the bonding operation has been completed.
  • the following example is given as a suitable method of preparing a capillary device from synthetic resinous materials in accordance with this invention, which device is especially adapted for use as a pen tip.
  • This use requires not only that the capillary device feed an adequate amount of writing fluid, but also that it have sufficeint mechanical strength and wear resistance to perform as a writing tip.
  • Example I A capillary structure comprised of four concentric braids was prepared from fifteen denier nylon fibers and immersed for thirty seconds in a solution of 112 parts by weight of resorcinol, 137 /2 parts by weight water, and 200 parts by weight of sugar.
  • the resorcinol is a good solvent for nylon and sugar probably acts as an interfering material as discussed above.
  • the saturated braid was then removed from the resorcinol solution and twisted to squeeze out excess solution which was then wiped off of the surface of the braid.
  • the braid was then released from the twist and stretched under about twenty pounds tension and placed in an oven at 400 F. for two minutes.
  • the braid was removed from the oven and quenched in a Water bath and held there for a sufficient length of time to leach out any excess resorcinol and the sugar.
  • the braid was then removed from the water bath, dried, and cut into one inch lengths. One end of the braid was sharpened to a fine point and the other end of the. braid was connected to a reservoir of writing fluid contained in a pen-like structure.
  • the capillary structure prepared in this manner provided an excellent point for the pen, as it Wrote well, provided an adequate flow of ink from the reservoir to the writing surface, did not fray or brush out, and was found to have had only negligible wear after prolonged usage.
  • Metallic filaments Where the primary requisite of the capillary device is extreme strength, it is particularly useful to weave the braid from metallic filaments. As discussed above with respect to braids made of synthetic resinous filaments, it is here also desirable to bond adjacent filaments to each other primarily at their points of intersection so that the capillary openings within and between the braids will not become blinded. Numerous methods can be utilized to bond these metallic filaments together, and the following are given as being representative.
  • One of the simpler methods for bonding metallic filaments together is by the use of heat. If the braid is raised to a temperature approaching or slightly exceeding the melting point of the metallic filaments, the filaments will sinter or melt together at their points of contact.
  • the method by which these high temperatures are obtained is not critical, and either an oven can be used or electrical heating methods such as resistance heating or induction heating. When either induction or resistance heating methods are used, it may be preferable to utilize high frequency currents. It is thought unnecessary to give specific temperatures that will accomplish the melting or sintering of metal filaments, as these will vary with each different metal, and it is well within the skill of the art to determine the proper temperature with respect to any given metal.
  • the braid When induction heating is used, the braid may be subjected to the influence of an energized induction coil while the braid is submerged in a water bath. Since the water will fill the capillary spaces of the braid, the filaments will be cooled where they are not in contact with each other, but not at those points where they touch and water is partially excluded. This will facilitate securing a bond by melting or sintering at the points of contact of the metallic filaments while reducing the danger of overheating the rest of the braid and blinding the capillary spaces.
  • metallic filaments can be bonded together by means of adhesive.
  • an adhesive can be applied to the filaments prior to the braiding operation.
  • the braid may first be woven and then contacted with the adhesive.
  • adhesives that can be applied from solution so that careful control over the thickness of the coating and/or the penetration of the adhesive into the braid can be obtained.
  • One particularly useful class of adhesives are the heat reactive resinous materials such as epoxies and phenolics.
  • Yet another method whereby the filaments of the braid may be bonded together at their intersections is by means of electrolytic deposition of metals from solutions onto the braid.
  • electrolytic deposition By controlling the thickness of the deposition, both the strength of the braid and the size of the capillary spaces may be controlled. This enables, for example, the use of a comparatively open braid since the capillaries of the braid can be filled in to any desired extent by controlling the rate and time of the metallic deposition process.
  • These metallic deposition processes may also be utilized to bond non-metallic filaments if a conductive surface is first provided over the filaments.
  • coatings of graphite or conductive polymeric materials may be applied from solution or coatings of metals may be applied as by vacuum metalization of vapor phase deposition.
  • the degree of bonding can be improved by subjecting the braided filaments to heat sintering temperatures after an electrolytic deposition step.
  • these braids are desirable since they can be ground to form smooth tips as would be required in preparing writing instruments.
  • Cold drawing techniques may also be used to bond the filaments of a metal braid together.
  • the metal braid is drawn through a reducing die that will reduce the diameter of the braid and simultaneously cause the filaments of the braid to flow and bond together at their points of contact due to the heat and pressure that is developed.
  • Glass filaments The versatility of the braids of this invention is further illustrated by the use of glass filaments to form the braid.
  • a rigid capillary device is produced that can be polished at its end to produce a smooth tip such as may serve as the tip of a writing instrument.
  • the braided structure may be immersed in a high concentration salt bath and then dried. The salt that is so deposited within the capillaries of the braid may be readily removed after the grinding operation as by leaching in hot water. Also, it may be desirable to form a smooth tip on the end of a glass braid by utilizing flame polishing techniques.
  • siloxanes, colloidal silica, diisocyanates and organic titanates are of this general type.
  • fiberglass filaments are usually coated with sizings and the like. Ordinarily, this is required to enable braiding or otherwise working with the filaments without cracking them.
  • sizings depending upon their composition, may adversely affect the bonding of the filaments together either by heat or with adhesives, and it may be necessary to remove them before the bonding operation.
  • etch polishing is another technique that may be utilized in forming a smooth tip, which is applicable to glass, resinous or metallic filaments. After a tip has been roughly formed, it may be inserted in a reagent that is effective to dissolve the material of which the braid is comprised. As is well known, etch polishing will cause the comparatively small irregular portions to be dissolved away first, thus leaving a comparatively smooth tip free of irregular surface projections.
  • Example II A capillary device suitable for use as a writing tip was prepared in the following manner. A braid comprised of glass filaments and having four concentric layers was woven. The braided structure was then immersed in an epoxy solution comprised of the following:
  • Epoxy resin 2O Hardener 20 Methyl ethyl ketone 60 The epoxy and epoxy hardener that were used were purchased in the marketplace under the trade name Duro- Epox-E which is a two component, room curing epoxy cement.
  • the concentric braided fiberglass structure was immersed in this resin solution and gently squeezed to insure penetration of the solution into the interstices of the braid. It was then removed from the solution, stretched, and the outside of the braid wiped free from excess solution.
  • the impregnated braid was then placed in an oven at 350 F. for about one hour and removed.
  • a tip was formed by cutting the braid with a razor blade and polishing the tip lightly with emery cloth. The tip was then immersed momentarily in the same solution and cured once more in the oven for about 15 minutes at 450 F.
  • the tip was removed from the oven, it was lightly polished again with emery cloth and then inserted in a pen holder with the pointed end protruding from the holder and the other end in contact with a reservoir of ink contained within the holder. This produced a very rigid, yet well flowing marking device that wrote quite well with a solid line.
  • the tip was sufficiently stiff so that five or six legible carbon copies could be made at one time.
  • braids that are comprised of filaments of synthetic resinous materials, metals or glass. It should be understood that it is within the scope of this invention to use other materials that are available in the form of filaments that are capable of being braided together and that can be bonded together at their intersections as described above.
  • a few strands of metal may be included within a braid comprised substantially of synthetic resinous filaments.
  • the metal filaments will add strength to the plastic filaments while the smoothness and lubricity of the resinous filaments will be preserved. Bonding can be accomplished by utilizing a heat sensitive adhesive or primer that is applied to the metal filaments that will enable, upon activation of the adhesive, bonding the various filaments to each other at points of contact.
  • the metal filaments may be comprised of high strength metals such as stainless steel
  • the plastic filaments may be comprised of polyethylene or polytetrafiuoroethylene.
  • mixed braids comprised of metal and glass, plastics and glass, and even plastic, glass and metal.
  • filaments is not restricted to monofilaments. Rather, it is intended that this term also include bundles of smaller filaments such as staple and thread.
  • a capillary device of the class described comprising filaments woven into a braided structure, which filaments are bonded to each other primarily at the points where they intersect adjacent filaments to form a rigid structure whereby the device is capable of feeding liquids in both an axial and radial direction.
  • a capillary device in which said braided structure is comprised of a plurality of concentric braids.
  • a capillary device in which said filaments are selected from a class consisting of metals, glass, ceramics, synthetic resins, and combinations thereof.
  • a capillary device in which said synthetic resin is a polyamide.
  • a capillary device in which one of said ends thereof communicates with a liquid reservoir.
  • a capillary device in which the other one of said ends is adapted to apply liquids to a surface.
  • a capillary device according to claim 1 in which said filaments are of cross sections other than circular.
  • a capillary device according to claim 7 in which said filaments are multi-lobal.
  • a method for the preparation of a capillary device comprising the steps of weaving a plurality of filaments together into a braid and bonding adjacent filaments in said braid to each other primarily at their points of intersection to produce a device capable of feeding liquids in both an axial and radial direction.
  • a method for preparing a capillary device comprising the steps of braiding a plurality of polyamide filaments into a plurality of concentric braids; bonding said braided polyamide filaments to adjacent filaments primarily at their points of intersection by contacting said braided structure with a solvent for said polyamide and exposing said braid to elevated temperatures approaching the melting point of the polyamide in order to cause said solvent to be absorbed, at least in part, into said polyamide filaments to produce a device capable of feeding liquids in both an axial and radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US548870A 1965-07-30 1966-05-10 Capillary devices Expired - Lifetime US3474703A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47617765A 1965-07-30 1965-07-30
US54887066A 1966-05-10 1966-05-10

Publications (1)

Publication Number Publication Date
US3474703A true US3474703A (en) 1969-10-28

Family

ID=27045102

Family Applications (1)

Application Number Title Priority Date Filing Date
US548870A Expired - Lifetime US3474703A (en) 1965-07-30 1966-05-10 Capillary devices

Country Status (6)

Country Link
US (1) US3474703A (enrdf_load_stackoverflow)
BE (1) BE684816A (enrdf_load_stackoverflow)
DE (1) DE1529013A1 (enrdf_load_stackoverflow)
FR (1) FR1486918A (enrdf_load_stackoverflow)
GB (1) GB1163433A (enrdf_load_stackoverflow)
NL (1) NL6610553A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951174A (en) * 1970-01-16 1976-04-20 Conant James E Tube orifice for pressure dispensing container
US3966336A (en) * 1974-05-20 1976-06-29 The Gillette Company Ball type marker construction which eliminates stick-slip phenomena
US3986331A (en) * 1973-01-09 1976-10-19 Ingrip Fasteners Inc. Net-like composite filaments
US4297835A (en) * 1979-11-23 1981-11-03 Mituo Shimizu Synthetic strings
US4310259A (en) * 1973-11-19 1982-01-12 Pilot Man-Nen-Hitsu Kabushiki Kaisha Capillary nibs for inscribing instruments
WO1984004494A1 (en) * 1983-05-06 1984-11-22 Gillette Co Improvements in or relating to writing instruments
US4838723A (en) * 1981-06-30 1989-06-13 Aubex Corporation Flexible pen nib for writing purposes
US5094139A (en) * 1990-02-26 1992-03-10 Solder Removal Company Desoldering braid
US6797948B1 (en) 2000-08-10 2004-09-28 Bruker Daltonics, Inc. Multipole ion guide
US20050125035A1 (en) * 2003-12-04 2005-06-09 Cichocki Frank R.Jr. Active suture for the delivery of therapeutic fluids
US20060030883A1 (en) * 2003-12-04 2006-02-09 Cichocki Frank R Jr Device for creating and maintaining infusion passages in tissue
US20060085036A1 (en) * 2004-10-18 2006-04-20 Viola Frank J Adhesive suture structure and methods of using the same
CN103305991A (zh) * 2013-07-05 2013-09-18 浙江金元亚麻有限公司 一种亚麻湿纺中空纱
US9597426B2 (en) 2013-01-25 2017-03-21 Covidien Lp Hydrogel filled barbed suture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461766A1 (fr) 1979-07-16 1981-02-06 Michelin & Cie Electrodes avec sorties de courant
EP0193636A1 (de) * 1985-03-08 1986-09-10 Konrad Hornschuch Aktiengesellschaft Reflektierende Textilbahn, Verfahren zu ihrer Herstellung und ihre Verwendung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US409721A (en) * 1889-08-27 Fibrous lubricator
US1122037A (en) * 1912-01-31 1914-12-22 George P Simmons Wick or feeder for lubricators.
US2284728A (en) * 1941-01-09 1942-06-02 Dreyfus Camille Braid
US2466785A (en) * 1944-12-09 1949-04-12 Edward P Schreyer Cosmetic applicator
US2504584A (en) * 1947-04-02 1950-04-18 Pedro S Ramos Composite wick
US2608901A (en) * 1950-12-22 1952-09-02 Barnhardt Mfg Company Cylindrical absorptive fibrous body and the manufacture thereof
US2686451A (en) * 1953-06-23 1954-08-17 Continental Wire Corp Braided silica elements and process of producing the same
US2688380A (en) * 1951-07-13 1954-09-07 American Viscose Corp Filter cartridge
US3080600A (en) * 1962-05-22 1963-03-12 Felters Company Felt-tipped marking pen with composite ink reservoir
US3111702A (en) * 1963-06-24 1963-11-26 United States Filter Corp Products formed from continuous filamentary tows
US3257702A (en) * 1965-03-10 1966-06-28 Sutures Inc Method of fabricating pliable braided polyfilamentous threads

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US409721A (en) * 1889-08-27 Fibrous lubricator
US1122037A (en) * 1912-01-31 1914-12-22 George P Simmons Wick or feeder for lubricators.
US2284728A (en) * 1941-01-09 1942-06-02 Dreyfus Camille Braid
US2466785A (en) * 1944-12-09 1949-04-12 Edward P Schreyer Cosmetic applicator
US2504584A (en) * 1947-04-02 1950-04-18 Pedro S Ramos Composite wick
US2608901A (en) * 1950-12-22 1952-09-02 Barnhardt Mfg Company Cylindrical absorptive fibrous body and the manufacture thereof
US2688380A (en) * 1951-07-13 1954-09-07 American Viscose Corp Filter cartridge
US2686451A (en) * 1953-06-23 1954-08-17 Continental Wire Corp Braided silica elements and process of producing the same
US3080600A (en) * 1962-05-22 1963-03-12 Felters Company Felt-tipped marking pen with composite ink reservoir
US3111702A (en) * 1963-06-24 1963-11-26 United States Filter Corp Products formed from continuous filamentary tows
US3257702A (en) * 1965-03-10 1966-06-28 Sutures Inc Method of fabricating pliable braided polyfilamentous threads

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951174A (en) * 1970-01-16 1976-04-20 Conant James E Tube orifice for pressure dispensing container
US3986331A (en) * 1973-01-09 1976-10-19 Ingrip Fasteners Inc. Net-like composite filaments
US4310259A (en) * 1973-11-19 1982-01-12 Pilot Man-Nen-Hitsu Kabushiki Kaisha Capillary nibs for inscribing instruments
US4410384A (en) * 1973-11-19 1983-10-18 Pilot Man-Nen-Hitsu Kabushiki Kaisha Method for producing capillary nibs for inscribing instruments
US4547244A (en) * 1973-11-19 1985-10-15 Pilot Man-Nen-Hitsu Kabushiki Kaisha Method for producing capillary nibs for inscribing instruments
US3966336A (en) * 1974-05-20 1976-06-29 The Gillette Company Ball type marker construction which eliminates stick-slip phenomena
US4297835A (en) * 1979-11-23 1981-11-03 Mituo Shimizu Synthetic strings
US4838723A (en) * 1981-06-30 1989-06-13 Aubex Corporation Flexible pen nib for writing purposes
WO1984004494A1 (en) * 1983-05-06 1984-11-22 Gillette Co Improvements in or relating to writing instruments
AU571875B2 (en) * 1983-05-06 1988-04-28 Gillette Company, The Nib for reservoir pen
US5094139A (en) * 1990-02-26 1992-03-10 Solder Removal Company Desoldering braid
US6797948B1 (en) 2000-08-10 2004-09-28 Bruker Daltonics, Inc. Multipole ion guide
US20050125035A1 (en) * 2003-12-04 2005-06-09 Cichocki Frank R.Jr. Active suture for the delivery of therapeutic fluids
US8128656B2 (en) 2003-12-04 2012-03-06 Ethicon, Inc. Device for creating and maintaining infusion passages in tissue
US20060030883A1 (en) * 2003-12-04 2006-02-09 Cichocki Frank R Jr Device for creating and maintaining infusion passages in tissue
US8257393B2 (en) * 2003-12-04 2012-09-04 Ethicon, Inc. Active suture for the delivery of therapeutic fluids
US7875055B2 (en) * 2003-12-04 2011-01-25 Ethicon, Inc. Active suture for the delivery of therapeutic fluids
US20050125034A1 (en) * 2003-12-04 2005-06-09 Cichocki Frank R.Jr. Active suture for the delivery of therapeutic fluids
US8142475B2 (en) * 2004-10-18 2012-03-27 Tyco Healthcare Group Lp Adhesive suture structure and methods of using the same
US20110139853A1 (en) * 2004-10-18 2011-06-16 Tyco Healthcare Group Lp Adhesive suture structure and methods of using the same
US8211130B2 (en) 2004-10-18 2012-07-03 Tyco Healthcare Group Lp Adhesive suture structure and methods of using the same
US20060085036A1 (en) * 2004-10-18 2006-04-20 Viola Frank J Adhesive suture structure and methods of using the same
US8709026B2 (en) 2004-10-18 2014-04-29 Covidien Lp Methods of using wound treatment infused sutures
US9358012B2 (en) 2004-10-18 2016-06-07 Covidien Lp Methods of using wound treatment infused sutures
US9597426B2 (en) 2013-01-25 2017-03-21 Covidien Lp Hydrogel filled barbed suture
CN103305991A (zh) * 2013-07-05 2013-09-18 浙江金元亚麻有限公司 一种亚麻湿纺中空纱

Also Published As

Publication number Publication date
GB1163433A (en) 1969-09-04
BE684816A (enrdf_load_stackoverflow) 1967-01-03
FR1486918A (fr) 1967-06-30
NL6610553A (enrdf_load_stackoverflow) 1967-01-31
DE1529013A1 (de) 1969-10-16

Similar Documents

Publication Publication Date Title
US3474703A (en) Capillary devices
US3442739A (en) Fibrous wick
US3864183A (en) Method for producing pen core from filament tows
US2928395A (en) Sutures
US3558392A (en) Process for the continuous manufacture of porous writing tips
US5288354A (en) Method of bonding self-lubricating fibers to an external surface of a substratum
US3594049A (en) Bearing liner
US3828934A (en) Media for wound filter elements
US5431500A (en) Bearing with bearing surface of integrally bonded self-lubricating material
US3767520A (en) Extruded fibrous liquid reservoir and method of making same
SE433826B (sv) Filterduk och sett att framstella dylik
US4367189A (en) Bearing
US3639070A (en) Marking-pen-type writing instrument
KR830003911A (ko) 라케트용 줄
US12064989B2 (en) Writing instruments and associated methods
US3458374A (en) Method of making a braided tubular bearing having a polytetrafluoroethylene liner
AU2004247511A1 (en) Stretched polytetrafluoroethylene formed article, method for production thereof, and composite article
EP3189124B1 (en) Composite bearing with enhanced wear and machinability
US3714314A (en) Method for manufacturing porous point tip
JPS5911687B2 (ja) 摩擦ロ−タ
JP2000135887A (ja) 筆記具用ペン先及びその製造方法
US3544229A (en) Marking pen
US2806333A (en) Tool for cleaning and burnishing commutators
KR102340572B1 (ko) 연삭 공구 및 이러한 유형의 연삭 공구를 제조하기 위한 방법
JPS61220808A (ja) プリプレグの製造方法