US3795969A - Method of manufacturing a ball point pen - Google Patents

Method of manufacturing a ball point pen Download PDF

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Publication number
US3795969A
US3795969A US00301200A US3795969DA US3795969A US 3795969 A US3795969 A US 3795969A US 00301200 A US00301200 A US 00301200A US 3795969D A US3795969D A US 3795969DA US 3795969 A US3795969 A US 3795969A
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Prior art keywords
reservoir
ink
open end
ball point
recessed
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Expired - Lifetime
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US00301200A
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English (en)
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N Tsunoda
T Saito
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/001—Joining in special atmospheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K15/00—Assembling, finishing, or repairing pens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/02—Ink reservoirs; Ink cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Definitions

  • FIG] FIGZ METHOD OF MANUFACTURING A BALL POINT PEN This is a divisional of our earlier application 193,020 filed Oct. 27, 1971.
  • This invention relates to a ball point pen which accomodates a compressed air chamber adapted to facilitate the smooth discharge of the writing ink and a method of manufacturing such pressure ball point pen.
  • the pressure ball point pen of this type heretofore used has an intricate construction including for example means for receiving the chemical substances adapted to generate a high pressure gas which usually require an expensive manufacturing cost.
  • an elongated ink reservoir having at its one end a ball point means is filled with the writing ink from the opposite end thereof which is then sealed in an airtight manner by a closing plug means to form a compressed air chamber between the ink surface and the closing plug means.
  • An object of the present invention is to provide a pressure ball point pen which comprises an elongated ink reservoir containing the writing ink, a ball point means secured to one end of said elongated ink reser voir and an end closure means forced into an opposite end of said elongated ink reservoir in an air-tight manner to provide a compressed air chamber between the ink surface and said end closure means.
  • an inner ink reservoir having at its one end a ball point means is filled with the writing ink and from the opposite end thereof sheathed in an air-tight manner by an outer sleeve through an elastic ring encircling the said inner ink reservoir to provide a pressed air chamber for compressing the ink under the desired pressure for the purpose of continuous smooth writing.
  • Another object of the invention is to provide a pressure ball point pen which comprises an elongated inner ink reservoir, a ball point means secured to one end of said inner ink reservoir, an elastic ring means encircling said inner ink reservoir and a bottomed outer sleeve sheathing in an air-tight relation said inner ink reservoir from an opposite end thereof to provide a compressed air chamber in abutment with the ink.
  • an ink reservoir having at its one end a ball point means is filled with the writing ink and the opposite open end of the ink reservoir is closed in an air-tight manner by a sealing plug having vertical groove for a compressed air inlet and adapted to be welded to the open end of the ink reservoir to provide a compressed air chamber between the ink surface and the sealing plug.
  • a further object of the invention is to provide a pressure ball point pen which comprises an elongated ink reservoir, 21 ball point means secured to one end of said ink reservoir and an end closure means having a vertical groove for compressed air inlet and inserted into the opposite end of said ink reservoir in a welding manner to provide a compressed air chamber between the ink and the end closure means.
  • a pressure ball point pen of the above third embodiment may be prepared by an apparatus in accordance with the invention in such a way that an open end of the ink reservoir containing the writing ink and having a ball point means at its opposite end is inserted into a high pressure gas chamber of the apparatus and closed by a closing plug of heat fusible material having a vertical groove for air inlet and then compressed air is supplied into the high pressure gas chamber from the supply source and subsequently into the space formed between the ink and the closing plug through the air inlet groove provided in the plug and finally the ultrasonic oscillation is transmitted through an oscillator to the plug for thermal welding with the open end of the ink reservoir thereby to provide a compressed air chamber between the ink and the end closure plug.
  • Still a further object of the invention is to provide a method of manufacturing a pressure ball point pen which comprises filling an elongated ink reservoir having at its one end a ball point means with the writing ink, closing an opposite open end of said ink reservoir by an end closure member of heat fusible material, subjecting the end closure member to an ultrasonic oscillation for welding attachment with the open end of the ink reservoir thereby to provide a compresed air chamber between the ink surface and the end closure member.
  • Yet a further object of the invention is to provide an apparatus for manufacturing a pressure ball point pen which comprises a base body, an elastic holding mass member accomodated in the base body and provided with an aperture for supporting an open end portion of elongated ink reservoir and a high pressure gas chamber, an ultrasonic oscillation means disposed in the base body in alignment with the aperture for transmitting an ultrasonic oscillation to an end closure member inserted into the open end of the ink reservoir and a path disposed above the ultrasonic oscillation means and communicating into the high pressure gas chamber.
  • FIG. 1 is a vertical view partially in sectioned of the ball point pen in accordance with the invention
  • FIG. 2 is a pictorial elevation of an end closure member before being inserted into an open end of the ink reservoir;
  • FIG. 3 is a longitudinally sectioned view of another embodiment of the ball point pen in accordance with the present invention.
  • FIG. 4 is a pictorial elevation of the ball point pen of FIG. 3 showing an outer sleeve before air-tight engagement with an inner ink reservoir;
  • FIG. 5 is a front eievation in partially sectioned of a further embodiment of the ball point pen in accordance with the present invention.
  • FIG. 6 is a cross-sectonal view of an apparatus for manufacturing the ball point pen of FIG. 5;
  • FIG. 7 is a fragmentarily enlarged lateral view in partially sectioned of an end closure means in engagement with an ultrasonic oscillator.
  • FIG. 1 logitudinally sectioned view an elongated writing ink reservoir tube of the ball point pen 10 made of steel,
  • the airtight plug 16 comprises a support arm 20 provided at its one end with a sealing member 22 of rubber and other suitable material having a diameter of approximately from 0.5 to 1mm greater than the inner diameter of the ink reservoir and at its opposite end with a closing member 24 with a head rim 26.
  • Outer circumferential surfaces of the sealing member 22 and the closing member 24 may be applied with grease or putty to minimize a friction with an inner circumferential wall of the ink reservoir on insertion and to prevent any leakage of the compressed air from the chamber 18.
  • Thesupport arm 16 and the airtight seal member 22 may be fixed to the inner circumferential wall of the reservoir tube 10 by a suitable bond when desired.
  • a movable plug 30 having approximately 0.2mm smaller diameter than the inner diameter of the reservoir tube 10 and less specific gravity than the writing ink in the reservoir may be floated on the ink surface to check the counter flow of the ink.
  • an elongated inner ink reservoir 32 made of steel or other suitable synthetic material is provided with a ball point 34 at its one end and the opposite end thereof is left in open.
  • the inner ink reservoir tube 32 at its proper circumferential portion is somewhat depressed inwardly to form an annular channel 36 along which an elastic annular ring 38 is encircled as best shown in FIG. 3.
  • the elastic annular ring 38 is preferably made of rubber or synthetic resin.
  • the elongated inner ink reservoir 32 is filled with the writing ink leaving the upper portion in vacant to provide a pressure chamber 40 as hereinafter described.
  • the open end of the inner ink reservoir 32 is inserted into an outer sleeve 42 of somewhat larger diameter than the outer diameter of the reservoir and having a closed bottom end and when the annular ring 38 is forced into the outer sleeve 42, an air flow from the reservoir tube is completely confined and the pressure in the pressure chamber 40 is raised to approximately two atms by sliding the inner reservoir upwardly. It will be appreciated that the annular ring 38 should be properly positioned to keep the pressure in the pressure chamber 40 at approximately two atms.
  • an open end of the outer sleeve 42 is somewhat bent inwardly to make a fixed engagement with a shoulder portion 44 of the ink reservoir.
  • the open end of the outer sleeve 42 may be provided with a threaded portion or other suitable fixing elements so that the inner reservoir 32 after the ink therein worn out may be replaced by a fresh reservoir containing the ink.
  • FIG. 5 shows another embodiment of the ball point pen according to the invention, wherein an open end of the ink reservoir 46 is closed by an airtight plug 48 of heat fusible material such as vinyl chloride and the details of closing operation will be described hereinafter.
  • the airtight plug 48 comprises a head rim 50 integrated with a stem 52 and an extended leg 54 and provided with one or more vertical groove 55 which extends from the tip of the leg 54 to the position at least across the stem 52.
  • the open end of the ink reservoir tube 46 is interiorly provided with a stopped portion 56 adapted to receive the stem 52.
  • an apparatus for manufacturing the ball point pen illustrated in FIG. 5 is constructed of a base body 58 which accomodates an elastic support member 60 having an aperture 62 for supporting an open end portion of the ink reservoir tube 46.
  • the elastic member 60 is further provided with-a recess 64 which provides a high pressure chamber 66 when the elastic member 60 is united with the base body 58.
  • the base body 58 further accomodates an ultrasonic oscillator 68 disposed in alignment with the aperture 62 and one end of the ultrasonic oscillator 68 is exposed into the high pressure gas chamber 66 in opposite relation with the head rim 50 of the air-tight plug 48.
  • a pressurized air path 70 communicating at its one end into the high pressure gas chamber 66 and communicated at its opposite end with a pipe 72 connected in turn to a solenoid valve 74 and a pressure gauge 76.
  • the open end of the ink reservoir tube containing the writing ink is mounted in the aperture of the elastic support member and then the airtight plug is inserted into the open end portion so that the head rim of the airtight plug confronts with the end of the oscillator.
  • the solenoid valve is opened to supply the dehydrated air or other suitable inert gas at a suitable pressure into the high pressure gas chamber.
  • the gas is further supplied into the space formed between the ink surface and the closing plug through the vertical groove provided in the closing plug.
  • the oscillator is moved toward the head rim of the plug for compression and simultaneously an oscillation is applied thereto to transmit the oscillation to the contacting portions between the plug and the open end of the ink reservoir so that the heat is generated therebetween with fusing of the plug member.
  • the fused material is penetrated into the vertical groove of the airtight plug resulting with an intimate fixation of the closing plug with the open end of the ink reservoir thereby to provide the compressed air chamber at the end portion of the ink reservoir.
  • a compressed air of desired pressure may be sealed into the ink reservoir in a simple and effective manner for the purposes of smooth and extended writing by the user without following any leakage of the ink.
  • a method of manufacturing a ball point pen comprising filling with ink an elongated ink reservoir having a writing end and an opposite open end, the ink being filled to a level below the open end thereby leaving an air space chamber between the ink surface and the open end of the reservoir, feeding the open end portion of the reservoir through an elongated passage of and terminating in a recessed end portion of a support member until said open end projects through the passage into the recessed portion, initially positioning a fusible closure member having a grooved stem and a cap portion with the grooved stem portion partially within said open end of the reservoir and with the cap portion spaced therefrom such that the groove defines an opening which permits communication between the air space chamber in the reservoir and the external atmosphere, fitting the recessed end of the support member within a recessed base body to define between inner walls of said recessed end portion of the support member and the inner limiting wall of the recessed base body a second chamber, supplying a fluid under pressure from an external source into said second chamber and into said reservoir through said opening, and moving the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US00301200A 1971-06-21 1972-10-26 Method of manufacturing a ball point pen Expired - Lifetime US3795969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46043960A JPS5243132B1 (enrdf_load_stackoverflow) 1971-06-21 1971-06-21

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US3795969A true US3795969A (en) 1974-03-12

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US00301200A Expired - Lifetime US3795969A (en) 1971-06-21 1972-10-26 Method of manufacturing a ball point pen

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JP (1) JPS5243132B1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600927A (en) * 1984-03-30 1986-07-15 Canon Kabushiki Kaisha Method of preserving ink jet recording head
US6027272A (en) * 1998-06-19 2000-02-22 The Gillette Company Fluid delivery system
WO2002016516A1 (en) * 2000-08-24 2002-02-28 Bic Corporation Solvent-based non-fluorescent inks for writing instruments based upon pigment dispersions in non-aqueous solvents

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871824A (en) * 1956-10-03 1959-02-03 Scripto Inc Leakproof ink tube for ball point pen
US3130711A (en) * 1961-11-22 1964-04-28 Samuel Sklar Positive pressure ball pen feed
US3425779A (en) * 1966-09-01 1969-02-04 Paul C Fisher Pressurized marking instrument
US3429028A (en) * 1965-06-28 1969-02-25 Sonobond Corp Vibratory welding apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871824A (en) * 1956-10-03 1959-02-03 Scripto Inc Leakproof ink tube for ball point pen
US3130711A (en) * 1961-11-22 1964-04-28 Samuel Sklar Positive pressure ball pen feed
US3429028A (en) * 1965-06-28 1969-02-25 Sonobond Corp Vibratory welding apparatus and method
US3425779A (en) * 1966-09-01 1969-02-04 Paul C Fisher Pressurized marking instrument
US3425779B1 (enrdf_load_stackoverflow) * 1966-09-01 1984-12-25

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600927A (en) * 1984-03-30 1986-07-15 Canon Kabushiki Kaisha Method of preserving ink jet recording head
US6027272A (en) * 1998-06-19 2000-02-22 The Gillette Company Fluid delivery system
US6402411B2 (en) 1998-06-19 2002-06-11 Berol Corporation Fluid delivery system
WO2002016516A1 (en) * 2000-08-24 2002-02-28 Bic Corporation Solvent-based non-fluorescent inks for writing instruments based upon pigment dispersions in non-aqueous solvents

Also Published As

Publication number Publication date
JPS5243132B1 (enrdf_load_stackoverflow) 1977-10-28

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