Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B9/00—Arrangements of the bristles in the brush body
  • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
  • A46B9/04—Arranged like in or for toothbrushes
• • 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
  • A46B2200/1033—Brush for applying or spreading shaving foam or soap
• • 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

• the present invention is directed to a brush, either manual or powered, which used to hold and apply various substances, for example toothpaste.
• a head of a conventional brush or a toothbrush usually has a flat or slightly altered surface to which a plurality of stand up elements is attached.
• the stand up elements are natural bristles or strands of plastic materials(s) formed into tufts bundles, or other groupings.
• the stand up elements are attached to the head either before or after forming the brush.
• U.S. Patent No. 2,083,217 issued Jun. 8, 1937 to E.I. Brothers, et al. discloses two or three circular brush sections which are arranged within cups 5 and 5 * that may be screwed into mating receptacles in the tooth brush handle so that they can be removed and replaced as needed (page 2, lines 52 70).
• Each brush section contains stiff cleaning elements and is spaced from the other along longitudinal axis of the handle at a distance less than the thickness of a tooth so that the brush operates on both the lingual (inside) and facial (outside) surfaces of the teeth (page 2, column 1, line 71 to column 2, line 9).
• 5,604,951 describes a toothbrush with a head containing a flexible, rubber-like prophylaxis polishing cup or "prophy cup” similar to that used by dental personnel to professionally dine teeth.
• This prophy cup is loaded with toothpaste by the user and applied to the teeth.
• the "soft rubber-like prophy cup device follows the contours of teeth more effectively than bristles.”
• This patent also discloses a ring of cleaning elements ("bristle tufts") placed about the periphery of the toothbrush head which co-act with the prophy cups to clean the user's teeth and gums.
• a brush in one aspect, including a handle and a head attached to the handle.
• the head has an upper surface and at least one protuberance positioned to the upper surface of the head.
• a plurality of the bristle elements extend from the upper surface of the head and are positioned around the protuberance such that bristle elements positioned closest to the protuberance define a cup-shaped clearance space around the protuberance.
• Figure 1 is a side cross sectional view of the first embodiment of the brush device in accordance with the present invention.
• Figure 2 is a top view of the embodiment of the brush device shown in Figure 1 ;
• Figure 3 is a side cross-sectional view of the second embodiment of the brush device in accordance with the present invention.
• Figure 4 is a top view of the embodiment of the brush device shown in Figure 3;
• Figure 5 is a side cross-sectional view of the third embodiment of the brush device in accordance with the present invention.
• Figure 6 is a top view of the embodiment of the brush device shown in Figure 5;
• Figure 7 is a side cross-sectional view of the alternative embodiment of the brush device in accordance with the present invention.
• Figure 8 is a top view of the embodiment of the brush device shown in Figure 7.
• a brush device 1 is provided with a head 2 and a handle 3.
• this embodiment is illustrated using a toothbrush, it should be understood by a person skilled in the art that the invention, as claimed, may be applied to any type of brushed or similar devices having stand up bristle elements, for example, paint brushes, shaving brushes, etc.
• head 2 includes at least one protuberance 6 formed on its upper surface 8.
• the remainder of the upper surface 8 is preferably flat.
• protuberance 6 is shown as having oval shape, any other shape, for example, circular, semi-circular, diamond, figure- eight, rectangular, triangular or any other, may be used.
• a plurality of stand up bristle elements 10 is attached to the upper surface 8 surrounding the protuberance 6 such that bristle elements 10 closest to the protuberance form a cup-shaped structure 11 around the protuberance. Further, bristle elements 10 closest to protuberance 6 are preferably more densely allocated on the upper surface 8 than the bristle elements positioned on the remainder of the upper surface.
• the height H of the protuberance 6 is preferably selected such that the top surface 12 of the protuberance is raised above the surface 8 of the brush device but is positioned below an upper plane 14 of the cup- shaped structure 11 of the bristle elements closest to the protuberance.
• Top surface 12 preferably has a convex shape. However, the top surface may be formed flat.
• FIG. 7 and 8 An alternative embodiment of the brush device is shown in Figures 7 and 8 showing a shaving cream brush, where like elements are designated with the same numerals as in Figures 1-6.
• Bristle elements 10 may be positioned perpendicularly to the upper surface 8 of the brush or may be inclined at an angle with respect to this upper surface. A combination of both perpendicular and inclined bristle elements is also possible. Further, in the preferred embodiment shown in Figure 1 , all bristle elements 10 have the same height. However, the height of the bristle elements may be different. For example, in one preferred embodiment, the height of the bristle elements increases outwardly from the bristle elements forming the cup-shaped structure 11 toward outer bounds of the upper surface 8 of the head. Accordingly, top surfaces of the bristle elements 10, in this embodiment, form a concave surface. An embodiment where a portion of the bristle elements have a gradually increasing height and a portion has the same height is also possible.
• handle 3 is formed with an interior hollow space 20 which is preferably filled up with the substance 21 to be applied by the brush.
• At least one vertical channel 22 is formed in the protuberance 6 opening at the top surface 12.
• Vertical channel 22 is preferably perpendicular to the upper surface 8.
• Hollow space 20 is connected to the vertical channel 22 via a plurality of connecting channels 24.
• Connecting channels 24 preferably include a horizontal channel 18, positioned, in proximity to the bottom surface 16 of the head and formed in parallel to the upper surface 8, an elbow-shaped channel 28.
• the elbow-shaped channel connects the hollow space 20 to the horizontal channel 18, which is in turn connected to the vertical channel 22.
• This multichannel construction allows the substance 21 to flow smoothly from the hollow space 20 onto the top surface 12 of the protuberance 6 through the vertical channel 22.
• a plunging mechanism 26 is provided within the hollow space 20 to push the substance 21 from the hollow space 20 into the connecting channels 24, then into the vertical channel 22 and then onto the top surface 12 of the protrusion 6.
• Plunging mechanism 26 may be realized as any known plunging structure. For example, a conventionally known bolt or pump mechanism may be utilized. Further, plunging mechanism may be actuated mechanically, for example using a turning wheel 32 located at the distal end of the handle, or electrically, as conventionally known.
• FIG. 5 An alternative embodiment of the connection between the hollow space 20 and the vertical space 18 is shown in Figures 5 and 6.
• a straight horizontal channel 34 connects the hollow space 20 directly to the vertical channel 18.
• An accumulation space 36 is provided below the intersection of the straight horizontal channel 34 with the vertical channel 18.
• Accumulation space 36 has an outside opening 38 covered entirely with a deformable push button 40.
• plunging mechanism 26 pushes substance 21 from the hollow space 20 into the straight horizontal channel 34 and into the vertical channel 18, the accumulation space 36 fills up with the substance 21 , creating a substance reserve. If necessary, this reserve may be utilized by depressing the push button such that the push button deforms inside the accumulation space 36 forcing the substance 21 from the accumulation space into the vertical channel 18.
• the cup-shaped structure prevents the substance 21 from excessively spilling over the top of the bristle elements (this wasting the applied substance), and the convex shape of the protrusion 6 enables an even distribution of the substance to all bristle elements.

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• Brushes (AREA)

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Cited By (1)

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Citations (4)

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• 2007
  • 2007-11-07 US US11/936,679 patent/US20090113648A1/en not_active Abandoned
• 2008
  • 2008-11-04 WO PCT/US2008/012463 patent/WO2009061398A1/en active Application Filing
  • 2008-11-04 RU RU2009141891/12A patent/RU2412634C1/ru active

Patent Citations (4)

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