EP0409594A1 - Toothbrush with toothpaste dispenser - Google Patents

Toothbrush with toothpaste dispenser Download PDF

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Publication number
EP0409594A1
EP0409594A1 EP90307854A EP90307854A EP0409594A1 EP 0409594 A1 EP0409594 A1 EP 0409594A1 EP 90307854 A EP90307854 A EP 90307854A EP 90307854 A EP90307854 A EP 90307854A EP 0409594 A1 EP0409594 A1 EP 0409594A1
Authority
EP
European Patent Office
Prior art keywords
cavity
toothpaste
toothbrush
dispensing
post
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.)
Withdrawn
Application number
EP90307854A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lim Seng Hock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0409594A1 publication Critical patent/EP0409594A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A46B11/0034—Means comprising a rachet mechanism or equivalent for advancing the piston stepwise
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • This invention relates to a toothbrush with a toothpaste dispenser.
  • GB 1470269 a toothbrush with a toothpaste dispenser is described.
  • the toothbrush has a hollow handle into which a cartridge containing toothpaste may be inserted.
  • toothpaste is forced from the cartridge through a piston passage to a capillary tube and thence to the head of the toothbrush.
  • a spring provided in the handle which abuts the face of the cartridge, forces the cartridge back to its original position once the cartridge is released.
  • GB-1470269 does not provide means which ensures that all the toothpaste contained in the cartridge will be dispensed. It is also necessary for the whole cartridge to move relative to the handle when depressed.
  • the present invention provides a toothbrush having a toothbrush head and toothpaste dispensing means for dispensing toothpaste from a toothpaste cavity to the toothbrush head, the dispensing means comprising: a ridged component arranged lengthwise of the cavity; a dispensing component which acts with the ridged component and with means providing an internal sealing surface to retain toothpaste within the cavity and which is movable along the cavity to dispense toothpaste therefrom, the dispensing component cooperating with said ridged component (a) to securely engage said ridged component when it is urged in a first direction so that the dispensing component moves with said ridged component relative to the sealing surface to dispense toothpaste from the cavity and (b) to release the ridged component for movement in the opposite direction, whereby the dispensing component remains in its displaced position.
  • the ridged component is an elongate ridged post or rod extending axially of the cavity and said means providing an internal sealing surface is the wall of said cavity.
  • the post is preferably ridged to provide a continuous screwthread.
  • the dispensing component preferably comprises a relatively rigid portion which sealingly engages with the sealing surface to form a false floor within the cavity, the resilient element being secured centrally of said rigid portion to cooperate with the ridged post.
  • the resilient element has several circumferentially spaced inwardly projecting fingers of resilient material.
  • the dispensing means further comprises a button connected to the ridged post such that on depression of the button, the ridged post is caused to move in said first direction.
  • these fingers On movement of the ridged post in said first direction, these fingers bear against a particular ridge on the ridged post to engage it secure that the rigid portion moves with the ridged post in said first direction relative to the cavity and on movement of the ridged post in said opposite direction these fingers spring away from the ridges on said ridged post so as to allow it to move in said opposite direction, while the dispensing component remains in its displaced position relative to the cavity.
  • a toothbrush 1 has three sections: a head section 2, a middle section 3 and an end cap 4.
  • the head section 2 has a flat upper surface to which bristles 5 are attached to form a brush.
  • Dispensing tubes 6 are also provided in the head section 2, the ends of the dispensing tubes 6 projecting beyond the upper surface of the head section 2 among the bristles 5 to provide toothpaste thereto.
  • the dispensing tubes 6 are in fluid communication with a common conduit 7.
  • the middle section 3 is fixedly attached at one end to the head section 2 and has an inner elongate cavity 8 for holding toothpaste or some other form of dentifrice paste.
  • the cavity 8 is fluidly connected to the conduit 7 in the head section 2 which is in turn fluidly connected to the toothpaste dispensing tubes 6.
  • the end of the middle section 3 remote from the head section 2 is closed with an annular holding member having a central opening 9a.
  • the outer surface of the holding member 9 tightly engages the inner wall of the cavity 8 at the end of the middle section 3.
  • a peripheral ridge 10 on the outer surface of the holding member 9 abuts against the end of the cavity 8 so that axial movement of the holding member 9 is prevented.
  • the holding member 9 extends into an annular projection 11 which projects away from the edge of the middle section 3 for engagement with the end cap 4.
  • the end cap 4 is in the form of a button having a peripherally depending rim 12 which snugly but slideably engages the outer wall of the annular projection 11 of the holding member 9.
  • the cap 4 also has a central stalk 13 which projects into the central opening of the annular holding member 9.
  • the central stalk 13 fits snugly into the central opening 9a of the holding member 9 but is capable of movement axially through that central opening.
  • a spring 14 is situated around the central stalk 13 and is in compression between the holding member 9 and the inner surface of the cap 4.
  • a ridged elongate component in the form of a rigid axially extending post 15 is attached at one end to the central stalk 13 of the cap 4.
  • the central stalk 13 is hollowed to receive one end of this post 15.
  • the end of the post 15 opposite to the end attached to the central stalk 13 is free and lies within the cavity 8.
  • the post 15 is screwthreaded to provide a circumferentially extending ridge.
  • the dispensing component 16 comprises a spindle valve having a rigid portion 17 and a holding component 18 in the form of a resilient element. As seen in Figures 1 and 2 the rigid portion 17 has an external circumferentially disposed surface 19 which sealingly engages the inner wall of the cavity 8 to prevent toothpaste exiting between the external surface 19 and the wall of the cavity 8.
  • the resilient element 18 is attached to the rigid portion 17 and is disposed on the face of the rigid portion 17 facing the holding member 9.
  • the resilient element 18 is made of resilient material and as may be seen in the embodiment of both Figures 4a and 4b has four circumferentially spaced inwardly projecting fingers 20. Although both Figures 4a and 4b show four fingers any number of fingers may be used as long as the fingers are sufficiently resilient to allow the ridged post to move relative to the dispensing component 16 in one direction axially without causing axial movement of the dispensing component, as described hereinafter.
  • the resilient element is arranged as can be seen in Figure 3 (exaggerated for clarity) so that the fingers 20 bear against a particular ridge on the post 15 thereby to securely engage the post and prevent axial movement of the post 15 relative to the dispensing component.
  • movement of the post 15 in a first axial direction causes the dispensing component 16 to move with the post 15 axially along the cavity.
  • the post 15 is able to move in the opposite axial direction relative to the dispensing component without causing movement of the dispensing component 16 relative to the cavity 8 as the fingers 20 spring away from the ridges on the post 15.
  • toothpaste is provided in the cavity 8 and fills the cavity 8 as far as the dispensing component 16. There is no toothpaste between the dispensing component 16 and the holding member 9.
  • the cap 4 is depressed and moves towards the holding member 9, compressing the spring 14. Depression of the cap 4 causes the central stalk 13 to move axially into the cavity 8 and to push the post 15 along the cavity 8. At this point the fingers 20 of the element 18 engage the post 15 and so the dispensing component moves along the cavity 8 with the post 15. Movement of the dispensing component 15 urges toothpaste in the cavity 8 out of the cavity 8 into the conduit 7, and hence to the toothbrush head.
  • the spring 14 forces the cap 4 back to its original position thus pulling the post 15 back to its original position.
  • the resilient fingers of the resilient element 18 momentarily spring away from the post to allow the ridges to pass through the dispensing component 18 without dislodging it from its displaced position in the cavity 8.
  • the cap 4 can be repeatedly depressed and released. In the process the dispensing component 16 advances along the cavity 8 so forcing toothpaste through the cavity 8 to the dispensing tubes 6 via the conduit 7. Each time the cap 4 is released, the dispensing component retains its new position.

Landscapes

  • Closures For Containers (AREA)
  • Brushes (AREA)
EP90307854A 1989-07-21 1990-07-18 Toothbrush with toothpaste dispenser Withdrawn EP0409594A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8916661A GB2234164A (en) 1989-07-21 1989-07-21 Toothbrush with toothpaste dispenser
GB8916661 1989-07-21

Publications (1)

Publication Number Publication Date
EP0409594A1 true EP0409594A1 (en) 1991-01-23

Family

ID=10660375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90307854A Withdrawn EP0409594A1 (en) 1989-07-21 1990-07-18 Toothbrush with toothpaste dispenser

Country Status (11)

Country Link
EP (1) EP0409594A1 (no)
CN (1) CN1048795A (no)
AU (1) AU4534089A (no)
CA (1) CA2002600A1 (no)
FI (1) FI901735A0 (no)
GB (1) GB2234164A (no)
HU (1) HU901639D0 (no)
IE (1) IE901294A1 (no)
NO (1) NO903249D0 (no)
PL (1) PL285596A1 (no)
PT (1) PT94079A (no)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997006712A1 (en) * 1995-08-12 1997-02-27 Hcare Limited A toothbrush
FR2772568A1 (fr) 1997-12-19 1999-06-25 Alain Savino Brosse a dents prete a l'emploi et jetable
US8365967B1 (en) 2012-03-06 2013-02-05 Dmitriy Danilov Pressure-activated valve
EP2674063A3 (en) * 2009-12-23 2015-04-29 Colgate-Palmolive Company Oral care system and method of using an oral care system
EP2674062A3 (en) * 2009-12-23 2015-04-29 Colgate-Palmolive Company Oral care system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286333A (en) * 1994-02-09 1995-08-16 Philip John Schatzberger Reservoir toothbrush
GB2290702A (en) * 1994-06-22 1996-01-10 Ian Wooldridge Reservoir toothbrush
GB2291799A (en) * 1994-08-04 1996-02-07 Vincent Robert James Moore Reservoir toothbrush
CN104203046B (zh) * 2012-02-13 2016-10-26 伊泽产品公司 具有自动牙膏分配机构的牙刷
WO2015094291A1 (en) * 2013-12-19 2015-06-25 Colgate-Palmolive Company Oral care dispenser and oral care system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB264733A (en) * 1926-07-13 1927-01-27 Thomas Seagrave Lord Improvements in and connected with fountain tooth brushes
US1921912A (en) * 1932-03-07 1933-08-08 Philipps Joseph De Reservoir applicator
US3227165A (en) * 1962-09-11 1966-01-04 Michael T Costanza Combined dispensing toothpaste holder and brush
FR2597734A1 (fr) * 1986-04-24 1987-10-30 Lelievre Thierry Distributeur doseur pour produits pateux, notamment dentifrice, ainsi que les brosses a dents equipees d'un tel distributeur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB264733A (en) * 1926-07-13 1927-01-27 Thomas Seagrave Lord Improvements in and connected with fountain tooth brushes
US1921912A (en) * 1932-03-07 1933-08-08 Philipps Joseph De Reservoir applicator
US3227165A (en) * 1962-09-11 1966-01-04 Michael T Costanza Combined dispensing toothpaste holder and brush
FR2597734A1 (fr) * 1986-04-24 1987-10-30 Lelievre Thierry Distributeur doseur pour produits pateux, notamment dentifrice, ainsi que les brosses a dents equipees d'un tel distributeur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997006712A1 (en) * 1995-08-12 1997-02-27 Hcare Limited A toothbrush
FR2772568A1 (fr) 1997-12-19 1999-06-25 Alain Savino Brosse a dents prete a l'emploi et jetable
EP2674063A3 (en) * 2009-12-23 2015-04-29 Colgate-Palmolive Company Oral care system and method of using an oral care system
EP2674062A3 (en) * 2009-12-23 2015-04-29 Colgate-Palmolive Company Oral care system
US8365967B1 (en) 2012-03-06 2013-02-05 Dmitriy Danilov Pressure-activated valve

Also Published As

Publication number Publication date
HU901639D0 (en) 1990-06-28
FI901735A0 (fi) 1990-04-05
CA2002600A1 (en) 1991-01-21
PT94079A (pt) 1991-03-20
IE901294A1 (en) 1991-06-19
GB2234164A (en) 1991-01-30
CN1048795A (zh) 1991-01-30
NO903249D0 (no) 1990-07-20
GB8916661D0 (en) 1989-09-06
PL285596A1 (en) 1991-12-02
AU4534089A (en) 1991-01-24

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Effective date: 19910723