Including Floating Follower In Reservoir Patents (Class 401/141)
  • Patent number: 9510668
    Abstract: An oral care implement having a visual indicator of depletion. In one aspect, the oral care implement comprises a body having a reservoir containing a composition including an oral care fluid and an indicator fluid, the oral care fluid being a different color than the indicator fluid and immiscible with respect to the indicator fluid; a delivery member formed of a capillary material; and the oral care fluid and the indicator fluid arranged within the reservoir so that upon the oral care fluid within the reservoir being substantially depleted, the indicator fluid is delivered to a visible portion of the delivery member by capillary action.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: December 6, 2016
    Assignee: COLGATE-PALMOLIVE COMPANY
    Inventors: Madhusudan Patel, Suman Chopra, Thomas J. Boyd
  • Patent number: 8764333
    Abstract: A water based ink composition for a ballpoint pen containing ?-carrageenan in addition to a dye, water and a water-soluble organic solvent. When used in the ball point pen, the ink composition satisfies an ink drooling prevention and a drying resistance which are mutually incompatible functions and is excellent in writing performance regardless of containing a dye as a coloring agent. The ink composition (c) is used, for example, by accommodating a refill (12) whose ink accommodating tube (18) is filled with the ink composition and which is further loaded with an ink backflow-preventing member (20) in the ballpoint pen (10) whose writing edge is retracted and extruded from a front end opening of a barrel (21).
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: July 1, 2014
    Assignee: The Pilot Ink Co., Ltd.
    Inventor: Hideaki Asami
  • Publication number: 20100272497
    Abstract: A fluid applicator includes a tubular container having a top open end and a bottom open end, a floating stopper mounted in the tubular container for sealing the bottom open end of the tubular container, a fluid filled in between the top open end and bottom open end of the tubular container, and a plug for closing the top open end of the tubular container. When the plug is opened from the top open end of the tubular container for allow the atmospheric pressure to enter the tubular container, the floating stopper is forced to adhere to the peripheral wall of the tubular container for allowing the fluid to flow out of the fluid container. When the plug seals the top open end of the tubular container, the atmospheric pressure is prohibited from entering the tubular container, and the floating stopper stops the bottom open end of the tubular container again.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Inventor: Kun-Liang Hong
  • Patent number: 7776941
    Abstract: An oil-based ink composition for writing instruments is provided that is capable of improving storage stability of an ink, while maintaining a leveling property even when a soluble gelling agent is used. The oil-based ink composition for writing instruments comprises a colorant, a resin, an organic solvent and a gelling agent, wherein said organic solvent(s) is (are) hydrocarbons solvent(s), and in particular, at least one species of the solvent selected from the group of aliphatic hydrocarbons solvent(s), alicyclic hydrocarbons solvent(s), aromatic hydrocarbons solvent(s), and halogenetad hydrocarbons solvent(s), said gelling agent(s) comprises (comprise) soluble gelling agent(s) soluble to the above organic solvent(s) and insoluble gelling agent(s) insoluble to the above organic solvent(s), and the above insoluble gelling agent(s) is (are) urea-modified thixotropic agent(s).
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: August 17, 2010
    Assignee: Sakura Color Products Corporation
    Inventors: Shigeki Yoneda, Takeshi Omatsu
  • Publication number: 20090320226
    Abstract: An oral care implement includes a handle, a head mounted to one end of the handle that includes a first face having plurality of tooth cleaning elements extending therefrom and a second face, a store of dentifrice retained at the head, and a film matrix retained at the head containing at least one rapidly releasable agent. A soft tissue cleaner can be included on the second face. The at least one rapidly releasable agent can be provided to the first and/or second faces during use from the film matrix. In addition, dentifrice can be provided to the first and/or second faces during use from the store of dentifrice. The at least one rapidly releasable agent can include, for example, a flavoring agent, a dentifrice, or a therapeutic agent. The toothbrush can be small in size and lightweight so as to be readily portable for use away from the home.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Applicant: COLGATE-PALMOLIVE
    Inventors: Richard Scott Robinson, Guofeng Xu, Douglas Hohlbein, Alan Sorrentino
  • Patent number: 7637680
    Abstract: A coating tool that includes an ink containment tube, an oily ink and a backflow inhibiting material. The ink is in contact with the inhibiting material. The ink containment tube has a boundary which is in contact with the oily ink and the backflow inhibiting material. The boundary contains polyvinyl alcohol and fluorine-based surfactants, the oily ink contains a colorant, a resin, an organic solvent, and a gelling agent, and the backflow inhibiting material consists of base material components and a gelling agent which contains polyacrylic acid, the polyacrylic acid being present in an amount of 0.1 to 3 wt % with respect to the total amount of said backflow inhibiting material.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: December 29, 2009
    Assignee: Sakura Color Products Corporation
    Inventors: Shigeki Yoneda, Takeshi Omatsu
  • Patent number: 7441976
    Abstract: A water-based ink composition for ballpoint pen, which comprises at least a colorant, water, a shear-thinning tackifier and a thickening inhibitor, wherein a ratio (x) of a viscosity after evaporation of 40 wt % of water from the total ink amount to an initial ink viscosity (as measured by EMD viscometer at 1 rpm and 20° C.) is 2 or less; and a ballpoint pen comprising the same.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: October 28, 2008
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Nobuyuki Kitaoka, Yoshiaki Ono
  • Patent number: 7311459
    Abstract: A follower for a nonaqueous ballpoint pen, comprising at least one poly-?-olefin which is a synthetic oil having a viscosity of 200 mPa·s or more at 40° C., wherein the total amount of poly-?-olefins is 80 mass % or more of all components, the viscosity at 40° C. is from 1,000 to 30,000 mPa·s, and the shear-thinning index at a shear rate of 1 to 10/s is 0.95 or more. A follower for a nonaqueous ballpoint pen can be used also for a nonaqueous ballpoint pen using a solvent having a high vapor pressure and causes no problem even when the follower is mounted in an ink reservoir tube with strong tube resistance having an inner diameter of 2.8 mm or less.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: December 25, 2007
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Takayuki Ikai, Shuji Ichikawa
  • Patent number: 7179006
    Abstract: An ink follower which has stable followability regardless of a pen body specification, a flow rate for writing and a writing speed and does not cause back leaking of the ink originating in shortage in the ink follower in the middle of writing and scattering of the ink follower by impact applied to the pen body and which does not flow out from the ink reservoir in storing the pen body at a high temperature and provides a stable flow rate for writing. An ink follower is also provided which prevents the ink from volatilizing by shutting off the ink from the outside air (volatilization preventing property) and which prevents the ink from leaking in writing with the pen turned upward. The ink follower, for example, contains a non-volatile or slightly volatile organic solvent and a non-styrene base thermoplastic elastomer which is soluble or swollen in the organic solvent and showing viscoelasticity which is predominant in elastic response.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: February 20, 2007
    Assignee: Mitsubishi Pencil Co., Ltd.
    Inventors: Masaru Miyamoto, Yoji Takeuchi, Kenji Sato
  • Patent number: 7179005
    Abstract: An ink follower for a ballpoint pen using a water-based ink in which a value of the test for oil separation (60° C., 24 hours) according to JIS K 2220-5.7-1993 is 0.5 to 12% and which has a viscoelasticity predominant in an elastic response or a value of tan ? of 0.1 to 1.5 at a temperature of 25° C. and in the full frequency range of an angular frequency of 0.1 to 630 rad/sec, and it contains as a base oil, a non-water-soluble organic solvent having a viscosity of 5 Pas·sec or less at a temperature of 25° C. and a shearing speed of 1 to 400 sec?1. Polybutene, mineral oil and silicone oil can be used as the base oil.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: February 20, 2007
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Masaru Miyamoto, Yoji Takeuchi
  • Patent number: 7056052
    Abstract: In order to provide an ink reservoir for a writing instrument which has satisfactory permeation resistance and moisture-absorption resistance against permeation of a solvent and absorption of moisture and which is excellent in a storing property of the ink with the passage of time, an ink reservoir for a writing instrument in which an ink for a writing instrument is stored is constituted of at least one selected from the group consisting of a cyclic olefin resin, a fluorine base resin and a high molecular weight olefin resin or the ink reservoir for a writing instrument described above is constituted of a laminated structure which is formed by extrusion molding of two or more kinds of thermoplastic resins.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: June 6, 2006
    Assignee: Mitsubishi Pencil Co., Ltd.
    Inventors: Shuji Ichikawa, Kazuhiko Furukawa, Takeshi Kobayashi
  • Patent number: 7037019
    Abstract: An ink-storing member for a writing instrument which can inhibit deterioration in the ink caused by permeation of oxygen and nitrogen contained in air, inhibit leaking of the ink and generation of bubbles, enhance discharge stability of the ink, improve fragrance retention of a perfume-containing ink, prevent inferior writing brought about by reduction in an internal pressure of an ink-storing vessel in a pressure type writing instrument and prevent deterioration in the ink due to vaporization of moisture of a water-based ink and deterioration in the ink caused y moisture absorption in an oil-based ink. Such ink-storing member includes, for example, an ink-storing member for a writing instrument which is constituted of a multilayer structure having an organic high molecular compound layer constituted of an organic high molecular compound an inorganic compound layer constituted of an inorganic compound.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: May 2, 2006
    Assignee: Mitsubishi Pencil Co., Ltd.
    Inventors: Masaru Miyamoto, Kenji Sato
  • Patent number: 6837640
    Abstract: An applicator comprising: a reservoir for holding therein an application liquid; a valve assembly disposed in a distal region of the reservoir; a tip disposed in front of the valve assembly; the valve assembly comprising: a valve chamber having a forward opening; a valve body held in the chamber and movable fore and aft; and a biasing member for urging the valve body to be pressed against a circular rim around the opening so as to close it, the valve body having a distal portion in contact with a rear end of the tip, wherein the application liquid stored in the reservoir has a viscosity of 100 mPa·s or less, and the applicator further comprises a follower disposed in the reservoir and in rear of a column of the liquid so as to control flow rate of the liquid flowing out through the opening of the valve chamber, with the follower serving also as a back-flow inhibitor for the application liquid, and wherein a viscous material forming the follower shows the value of at highest ‘2’ as the ratio of viscosity at
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: January 4, 2005
    Assignee: Sakura Color Products Corp.
    Inventor: Nobuaki Kobayashi
  • Publication number: 20040161286
    Abstract: An oily ink for writing instruments comprising
    Type: Application
    Filed: October 23, 2003
    Publication date: August 19, 2004
    Inventors: Takeshi Omatsu, Hiroshi Inoue
  • Patent number: 6729787
    Abstract: An applicator has a tubular body containing a liquid to be dispensed. A non-return device is movably disposed in the tubular body rearwardly of and in contact with the liquid for preventing backflow of the liquid. A manually-displaceable piston member is displaceable in the tubular body in a forward direction for pressurizing air admitted into a chamber located in front of the piston member, and a normally closed valve communicates with the chamber and is openable by the force of the pressurized air to apply the pressurized air to the non-return device to urge the non-return device forwardly to thereby pressurize the liquid. A resilient member normally urges the piston member rearwardly to a rear stop position. An air passage communicates the chamber with the exterior of the applicator when the piston member is in the rear stop position, and the air passage is blocked by the piston member during displacement of the piston member in the forward direction.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: May 4, 2004
    Assignee: Pentel Kabushiki Kaisha
    Inventors: Hideyuki Usami, Katsuhiro Ueda, Kazuma Noguchi, Takashi Yamaya
  • Patent number: 6655867
    Abstract: A writing instrument has an ink containment tube and a pen tip equipped at one end of the ink containment tube with an oily ink contained in the ink containment tube. The oily ink shows pseudo-plasticity fluidity and comprises a colorant, a resin, an organic solvent and a gelling agent.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: December 2, 2003
    Assignee: Sakura Color Products Corp.
    Inventors: Takeshi Omatsu, Hiroshi Inoue
  • Publication number: 20030086744
    Abstract: An oily ink for writing instruments comprising
    Type: Application
    Filed: April 26, 2002
    Publication date: May 8, 2003
    Inventors: Takeshi Omatsu, Hiroshi Inoue
  • Patent number: 6554521
    Abstract: An applicator comprising: a reservoir for holding therein an application liquid; a valve assembly disposed in a distal region of the reservoir; a tip disposed in front of the valve assembly; the valve assembly comprising: a valve chamber having a forward opening; a valve body held in the chamber and movable fore and aft; and a biasing member for urging the valve body to be pressed against a circular rim around the opening so as to close it, the valve body having a distal portion in contact with a rear end of the tip, wherein the application liquid stored in the reservoir has a viscosity of 100 mPa·s or less, and the applicator further comprises a follower disposed in the reservoir and in rear of a column of the liquid so as to control flow rate of the liquid flowing out through the opening of the valve chamber, with the follower serving also as a back-flow inhibitor for the application liquid, and wherein a viscous material forming the follower shows the value of at highest ‘2’ as
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: April 29, 2003
    Assignee: Sakura Color Products Corporation
    Inventor: Nobuaki Kobayashi
  • Patent number: 6530708
    Abstract: An ink follower composition for oil-based ballpoint pens, comprising at least one organic solvent selected from the group consisting of a sparingly volatile organic solvent and a non-volatile organic solvent, a gelling agent comprising inorganic fine particles, and from 10 to 60% by weight of a resin soluble in the organic solvent used.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: March 11, 2003
    Assignee: Mitsubishi Pencil Co., Ltd.
    Inventor: Shuuji Ichikawa
  • Patent number: 6518329
    Abstract: A non-erasable liquid ink for a marking instrument including a colorant and a solvent and having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps. Also disclosed is a marking instrument filled with an ink of such a viscosity or lower in its reservoir.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 11, 2003
    Assignee: Berol Corporation
    Inventors: Nan-Jae Lin, Andrew R. Klassman, Roy Nicoll, Charles Christopher Packham, Vliet Hulse, John Thompson
  • Patent number: 6478496
    Abstract: An ink follower for a writing tool arranged in close contact with an ink surface of a terminal portion of an ink reservoir opposite to a writing tip portion comprises a swollen gel formed from an oil-absorbable resin, a base oil of polybutene, and an alkyl-modified silicone oil compatible with the polybutene. The ink follower exhibits improved impact resistance without causing insufficient ink following and oil separation.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: November 12, 2002
    Assignee: Kabushiki Kaisha Pilot
    Inventors: Kazuhiro Yoshii, Seishi Izumi, Teruaki Fukasawa
  • Publication number: 20020159821
    Abstract: An ink follower composition for oil-based ballpoint pens, comprising at least one organic solvent selected from the group consisting of a sparingly volatile organic solvent and a non-volatile organic solvent, a gelling agent comprising inorganic fine particles, and from 10 to 60% by weight of a resin soluble in the organic solvent used.
    Type: Application
    Filed: February 5, 2002
    Publication date: October 31, 2002
    Applicant: MITSUBISHI PENCIL CO., LTD.
    Inventor: Shuuji Ichikawa
  • Patent number: 6454481
    Abstract: An ink follower for a writing tool comprises a swollen gel formed from an oil-absorbable resin and a base oil, i.e., a hardly volatile liquid and/or a nonvolatile liquid. The ink follower is arranged in contact with the ink surface of a writing tool such as a pen. A writing tool using the ink follower has excellent impact resistance without causing insufficient following and oil separation with the passage of time and with no occurrence of inconvenience in writing.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: September 24, 2002
    Assignee: Kabushiki Kaisha Pilot
    Inventor: Seishi Izumi
  • Patent number: 6443647
    Abstract: A follower piston for a ball-point pen, the piston including an element in the form of a stable gel whose hardness measured by cone penetration lies in the range 100×10−1 mm to 400×10−1 mm, and a method for manufacturing the element in situ.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: September 3, 2002
    Assignee: Société BIC
    Inventors: Jean-Philippe Lerch, José Duez, Frédéric Bocquenet
  • Patent number: 6406204
    Abstract: An oily ink for writing instruments comprising e. colorant, f. resin, g. an organic solvent and h. a gelling agent, wherein the said gelling agent comprises a soluble gelling agent with the solubility of from about 0.1 to about 20% by weight at a temperature of 20° C. to the said organic solvent, and the viscosity of the ink is not less than 700 mPa·s when the rate of shear is 0.1 (1/s) and not greater than 500 mPa·s when the rate of shear is 100 (1/s).
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: June 18, 2002
    Assignee: Sakura Color Products Corporation
    Inventors: Takeshi Omatsu, Hiroshi Inoue
  • Patent number: 6267523
    Abstract: An ink pen refill consists of a single writing point connected to an elongated barrel in which gel ink is stored in distinctly colored layers. At the proximal end of the barrel, just behind the most proximal color band of ink, a quantity of grease is inserted in the barrel to seal the ink within the barrel. In manufacturing the ink pen refill, after installing the elongated barrel on the proximal end of the writing point, a quantity of gel ink of a first particular color is inserted within the barrel just proximal of the writing point using a filling pipe. When the desired quantity of ink has been so inserted, the elongated barrel with the writing point is placed in a centrifuge and is centrifuged to remove any air bubbles contained within the ink. Next, the next color of gel ink is dispensed into the barrel just proximal of the first layer of ink. The entire refill is again centrifuged to remove any bubbles from the newest layer of ink.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: July 31, 2001
    Assignee: Raymond Geddes & Company, Inc.
    Inventors: Edward John Poels, Sin-Hwa Huang
  • Patent number: 6132124
    Abstract: The present invention provides an ink follower for an aqueous ballpoint pen having an ink reservoir for directly preserving an ink, and this ink follower comprises at least a gel-like material having a predominantly viscous response and comprising a less volatile solvent having a viscosity of 5 Pa.multidot.sec or less and a hydrophobic thickening agent, and a solid piece having a specific gravity of 0.80 to 1.10. In addition, the present invention provides a ballpoint pen using this ink follower.The ink follower of the present invention is characterized by using the gel-like material having a high flowability and the solid piece for dispersing and absorbing impact. This ink follower has a strong drop impact resistance, in contrast to a conventional gel-like ink control plug. The aqueous ballpoint pen using this ink follower does not lose its function, even when it is dropped from a shelf at a height of 1.5 m.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: October 17, 2000
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Norio Ogura, Kazuhiko Furukawa, Katsuhiko Shiraishi
  • Patent number: 6075070
    Abstract: A marking instrument includes a non-erasable ink including a colorant and a solvent having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: June 13, 2000
    Assignee: The Gillette Company
    Inventors: Nan-Jae Lin, Andrew R. Klassman, Roy Nicoll, Charles Christopher Packham, Vliet Hulse, John Thompson
  • Patent number: 6068422
    Abstract: A refill is provided that is packaged in a recyclable assembly of recyclable plastic and recyclable paper or cardboard. The refill is further constructed from recyclable plastic and uses soy resins for the ink. On a barrel of the ink refill is a graduated scale indicative of the amount of writeout of ink remaining in the pen. In addition, a follower, such as a floating ball or chemical chaser, clearly identifies the level of ink remaining in the refill. The assembly may further include a scale corresponding to the scale on the refill and may further include information relating to the recyclability utilization of the assembly and refill.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: May 30, 2000
    Assignee: Eversharp Pen Co.
    Inventor: Paul A. Smith
  • Patent number: 5709493
    Abstract: A ballpoint pen for use with ink having thixotropic (shear viscosity decreasing properties) and a joint for regulating the flow of the ink to the pen's tip through an entrance in the tip. The joint includes a valve chamber which is disposed in an approximately middle portion of the joint with respect to the axial direction thereof for holding a ball therein with play and has a ball seat in the rear part thereof, a cavity in front of the valve chamber and a conduit communicating with an ink reservoir.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: January 20, 1998
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Seiichi Kobayashi, Kazuhiko Furukawa
  • Patent number: 5346324
    Abstract: A dentifrice dispensing toothbrush is described which utilizes a compressible elastic button to pump a controlled quantity of dentifrice material from a replaceable cartridge to the brush head. The toothbrush locks itself to prevent further pumping of dentifrice material when its replaceable cartridge is nearly empty. The self locking mechanism eliminates the formation of voids in the dentifrice material and consequent pump failure when the spent cartridge is replaced. In one embodiment, a cover is provided which protects the brush head, bristles, pumping mechanism and other parts of the toothbrush. The cover also seals the conduit which supplies dentifrice material to the brush head to prevent it from becoming clogged with dried dentifrice material during periods of non use and to prevent accidental compression of the button.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: September 13, 1994
    Inventor: Youti Kuo
  • Patent number: 5249875
    Abstract: A marker including a cylindrical ink reservoir formed in a body, a slide plug inserted into the ink reservoir, a pen element slidably installed at the end of the body in the axial direction, and an elastic sealing member for pressuring ink and sending it to the pen element. For writing, ink is supplied to the pen element by the elastic sealing member and adequate ink is constantly contained in the pen element.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: October 5, 1993
    Assignee: Jiro Hori
    Inventors: Jiro Hori, Katsumi Hori
  • Patent number: 5222824
    Abstract: A reservoir pen includes a valve operated by the pen nib (4) to allow ink to pass to the nib, the ink flow rate being controlled by a flow restricting device (8) located between a primary ink reservoir chamber (2) enclosed within the pen barrel (1) and a secondary ink reservoir chamber (6) of much smaller capacity from which an ink channel (10) leads to the valve. The device (8) is a length of an extruded rod of microporous plastics. The nib is pressed towards the feed bar (3) by one spring element (21) and the valve member (12) which cooperates with a seat defined by the feed bar is urged to its closed position by another spring element (28). The rear end of the primary ink chamber (2) is closed by a grease plug comprising a mass of grease and a skeletal reinforcing frame.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: June 29, 1993
    Assignee: The Gillette Company
    Inventors: Roy Nicoll, Charles Diossy
  • Patent number: 5087143
    Abstract: A filling toothbrush having a hollow handle providing a supply space for toothpaste. A toothpaste dischage aperture is provided on the outer end of the handle beneath the bristles. A conduit inside the handle connects the aperture to the supply space at the inner end of the handle where a pump forces toothpaste through the conduit. The supply space has a cross-section increasing toward the pump in two stages provided by a first cylinder and a second cylinder within the handle. A piston within said first cylinder moves downwardly to push toothpaste toward the pump at the inner end of the handle. The second cylinder has a piston in the form of a ring having a width sufficient to span the difference in diameters of the first and second cylinders. An inwardly projecting flange on the ring piston is engaged by the first piston as it moves toward the pump and the two pistons then move in unison to expel toothpaste from the second cylinder.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: February 11, 1992
    Inventor: Michael Hertrampf
  • Patent number: 5026192
    Abstract: A liquid container comprising a main member, a cylinder and a container body. The main member has a barrel, a head fitted in an upper portion of the barrel, a discharge section provided at an upper end of the head, a passage cylinder communicating with the discharge section and extended downwardly into the upper portion of the barrel, a cylindrical piston formed at a lower end of the passage cylinder, and a resilient discharge valve in the passage cylinder. The cylinder is movably inserted into the barrel to be elevationally movably engaged with an outer surface of the lower portion of the passage cylinder and to be resiliently urged downwardly. The cylinder has a suction valve at a its lower end thereof. The container body is movably inserted into the barrel.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: June 25, 1991
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Toshiaki Kiuchi, Shigeo Iizuka
  • Patent number: 5020930
    Abstract: A dispenser for viscous material, such as shoe polish, comprising a substantially cylindrical reservoir having near one reservoir end a filling discharge passage terminating in a distribution channel extending through a porous applicator. At least a part of the dispenser wall is deformable for pressing the filling out of the reservoir through the filling discharge passage into the distribution channel. The dispenser is characterized in that at the other end of the reservoir (16,24), there is provided a follower piston (6,28) which, while confining the filling at the discharge end of the reservoir, under the influence of a force exerted axially on the piston body (6,24), is movable stepwise in the direction of the filling discharge passage (9,29). The dispenser is further provided with pumping means operative upon deformation of the deformable portion (3,34) of the dispenser wall (2,25), which portion is resilient.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: June 4, 1991
    Assignee: Sara Lee/DE N.V.
    Inventor: Peter H. A. N. Kuhn
  • Patent number: 4984922
    Abstract: The present invention relates to a toilet implement in which a shaft is rotated with respect to a piston member provided between the shaft and a liquid supply means whereby a cylinder is moved up and down to supply a liquid from a container body within a lower portion of the shaft into the liquid supply means. A leakage of liquid caused by the inadvertent advancement of a bottom of the container body which has been a disadvantage encountered in conventional toilet implements can be prevented.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: January 15, 1991
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Shigeo Iizuka
  • Patent number: 4976563
    Abstract: A container type toilet implement has a container, and a bottom cover provided liquidtightly and elevationally movable at the lower portion of the container, the bottom cover having air escape grooves. A cylinder is erected upward from a neck of the container. A suction is mounted in the lower portion of the cylinder. A piston is engaged at the lower portion thereof with the upper inside of the cylinder and disposed slidably telescopically in the cylinder. A spring member is disposed between the cylinder and the piston for urging the cylinder downwardly. An exhaust valve member has two elastic plates extending downwardly at a predetermined interval from an upper end cylindrical portion formed in the piston, the elastic plate having opposed bent parts in a ring shape substantially at the intermediate thereof. A rod valve is disposed below the exhaust valve member, and an exhaust valve body is formed at the lower portion of the elastic plate of the exhaust valve member.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: December 11, 1990
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Shigeo Iizuka, Tadao Saito
  • Patent number: 4973180
    Abstract: A tool for applying a liquid to a predetermined portion is disclosed. The tool has a main ink reservoir and a sub-ink reservoir. The sub-ink reservoir communicates with a pen body. The main ink reservoir communicates with the sub-ink reservoir through a valve mechanism. When ink inside the sub-ink reservoir is depleted upon writing, and a pressure inside the sub-ink reservoir is reduced, the valve mechanism is opened.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: November 27, 1990
    Inventor: Jiro Hori
  • Patent number: 4954002
    Abstract: In a writing instrument including an ink reservoir and an air hole, the air hole is spanned by a barrier formed as a porous non-absorbent ink repellent membrane of substantially uniform pore size. The barrier is non-porously sealed, for example by direct heating or ultrasonic welding, along its entire periphery to the wall of the air hole, the barrier allowing air to pass freely therethrough in both directions, but preventing escape of ink therethrough and therearound. The barrier is preferably formed of polytetrafluoroethylene with a pore radius of not more than 10 .mu.m and a thickness of not more than 200 .mu.m. The ink for use in the writing instrument preferably has a surface tension of not less than 30 mN m.sup.-1, a viscosity of not more than 10 cp and a wetting angle with the barrier of not less than 100.degree..
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: September 4, 1990
    Assignee: Parker Pen (Benelux) B.V.
    Inventors: Philip Wallis, Robert E. Burkhalter, Thomas D. Hall
  • Patent number: 4787765
    Abstract: A dentifrice dispensing toothbrush is described which stores dentifrice material in its handle and deposits a controlled quantity of the stored material directly onto the top of the brush surface. The toothbrush comprises (1) a housing which includes a handle, (2) a reservoir situated within the housing for storing dentifrice material, (3) a brush having bristles which are attached to and supported by a brush head member, and (4) a pump which causes a controlled quantity of dentifrice material to be pumped from the reservoir through a channel and a movable applicator and thereafter, to be deposited onto the brush surface. The applicator can be positioned in either a depositing or non-depositing relationship with the brush surface. No dentifrice can be pumped from the reservoir when the applicator is in a non-depositing relationship with the brush surface thus preventing the accidental discharge of dentifrice.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: November 29, 1988
    Inventor: Youti Kuo
  • Patent number: 4708267
    Abstract: A dispenser for pasty compositions (M) having a housing (1) in which there is arranged a piston (2) which is displaceable only in the emptying direction. An outer actuating handle is provided on a wall (10) of the head piece (K). The wall can be pressed in the direction towards the piston, the head piece having a dispenser outlet opening (7) which lies at the outer end (9") of a tube (9) whose end section (9') forms an inner open mouth end the end section over its entire length protruding inwards beyond the wall into the pasty composition. In order to obtain a structural shape which is simple to manufacture and a self-regulation of the delivery which is free of loss the actuating handle is formed as a dome-shaped cap (6) and is seated on a collar (12) which lies concentric to the tube (9) and which collar protrudes outwardly beyond the wall (10). A removable closure lid has a stopper which extends into the dispenser outlet opening.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: November 24, 1987
    Assignee: Bramlage Gesellschaft mit beschrankter Haftung
    Inventors: Werner Sieverding, Herbert Mettenbrink, Gunter Pohlmann, Ludger Hackmann
  • Patent number: 4695177
    Abstract: A dentifrice dispensing toothbrush is described which stores dentifrice material in its handle and deposits a controlled portion of the stored material directly onto the top of the brush surface. The toothbrush comprises (1) a housing which includes a handle, (2) a reservoir situated within the housing for storing dentifrice material, (3) a brush having bristles which are attached to and supported by a head member, (4) an applicator which is attached to the housing and which is used to deposit portions of the material directly onto the top of the brush surface, (5) a valve which controls the flow of dentifrice material from the reservoir to the applicator and (6) a pumping means for applying pressure to the stored dentifrice material so as to cause it to flow from the reservoir to the applicator. The dentrifrice material is stored either directly in the reservoir or in a removable cartridge which is inserted in the reservoir.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: September 22, 1987
    Inventor: Youti Kuo
  • Patent number: 4692047
    Abstract: A brush for applying liquid or emulsion material such as toothpaste, hair-dye, cleaning material, etc., has a handle, a rod having bristles, sponge, etc. at its head and a pumping mechanism accommodated in the handle. The rod is slidably held, at its rear end, by the main body of the handle. When the rod is pushed rearward and thereafter released, the pumping mechanism is operated so as to such the material from a container forming a part of the handle and feed the sucked material to the head of the rod.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: September 8, 1987
    Inventor: Sasuke Endo
  • Patent number: 4568214
    Abstract: A make-up brush comprises a tapered hollow body made of a porous material restorable in shape when deformed, having a surface for oozing a make-up liquid, a make-up liquid guiding core covered by the hollow body and tightly inserted through a head seat fixed to one end of a liquid cylinder, a head cylinder through which the tapered hollow body extends, the head cylinder being secured to one end of a shaft cylinder to fix the tapered hollow body thereat, and a viscous substance filled in the liquid cylinder after the make-up liquid is filled in the liquid cylinder on a side of the head seat, thereby causing the make-up liquid to smoothly flow out of the make-up brush.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: February 4, 1986
    Assignees: Osawa Chemical Industries, Ltd., Tombow Pencil Co., Ltd.
    Inventors: Katsunori Abe, Toshio Inoue
  • Patent number: 4498797
    Abstract: A writing instrument cartridge contains a loose fitting ball follower disposed within the cartridge between an end of a column of paste like ink exhibiting a yield value, and compressed gas contained in a sealed end of the cartridge. The ball follower is adapted to help peel the ink from the tube walls without contact and to prevent the gas from channeling through the ink and escaping from the cartridge past a ball point or nib during writing.
    Type: Grant
    Filed: January 22, 1980
    Date of Patent: February 12, 1985
    Assignee: The Gillette Company
    Inventors: Henry Peper, Thomas E. Eaton, Edward J. Ferguson