|Publication number||US2172624 A|
|Publication date||Sep 12, 1939|
|Filing date||Aug 25, 1937|
|Priority date||Aug 25, 1937|
|Publication number||US 2172624 A, US 2172624A, US-A-2172624, US2172624 A, US2172624A|
|Inventors||Robert Gabriel Romani Y|
|Original Assignee||Robert Gabriel Romani Y|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (78), Classifications (11)|
|External Links: USPTO, USPTO Assignment, Espacenet|
G. ROMANI Y ROBERT 2,172,624
TOOTH BRUSH Sept. 12, 1939;
Filed Aug. 25, 1957 Patented Sept. 12, 1939 UNITED STATES PATENT OFFICE 1 Claim.
This invention relates to improvements in tooth brushes.
The prime object of the invention is to provide a mounting for the bristles in a manner, that as the brush is reciprocated when in use, the bristles will oscillate to afford a better cleaning action.
A further object of the invention is the provision of brush units which may at will be removed and/or replaced.
Another and broader object of the invention is the provision of means for mounting a. series of brush units, so arranged that they oscillate in the reciprocation of the brush when in use.
In the accompanying drawing:
Figure 1 is a plan view of my improved tooth brush.
Figure 2 is a central vertical section of the same.
' Figure 3 is a detail view of a brush unit holder.
Figure 4 is an end view of the brush holder. Figure 5 is a cross section. Figure 6 is a detail view of one of the brush units. Figure 7 is a sectional view partially in elevation of the brush units and holder.
Figure 8 is a perspective view of a slightly modified form of the invention.
Figure 9 is a detail view of a modified way of a mounting the brush units.
In the drawing, l indicates a brush unit holder comprising two members 2 and 3 hinged together at 4 and provided at their opposite ends with threads 5. The members 2 and 3 have oilset portions, as at 6, and in opposite side walls are aligned openings 1. The free or. threaded ends of the members 2 and 3 are formed, respectively, with a rib 8 and groove 9. These ends are semicircular where threaded, so that when they are f brought together they form'a threaded split bolt,-
the rib and groove holding the two parts in relation.
When the two members 2 and 3 are in closed 45 position, as shown in Figure 1, the offset porend of which is rotatably mounted a feed screw It, on which is-threaded a nut or follower l5 which fits snugly within the handle ll.
In the member 2 is a duct it which communicates with the interior of the hollow handle, I while the outlet end is located in the rear of the inner brush unit.
When the parts are assembled as shown in. Figures 1 and 2, the brush units are held in op-' erative relation by the threaded connection between the free ends of the handle. The brush units being spaced apart as shown allows for a Slight oscillating movement when the brushis reciprocated in use. For instance, as the brush moves, say in one direction over the teeth, the units rock on their pivots, as best shown in Fig- -ure 7. Obviously, in the reverse movement, the
units rock in the opposite direction.
The spaces between the units are, of course, just suflicient to permit one block to contact with U the adjacent block to prevent dislocation of the unit'and yet afiord sufiicient movement to allow the necessary oscillation of the unit.
Tooth paste is stored in the hollow handle and is fed to or adjacent the bristles of the units by a turning the screw I! and forcing the nut II toward the brush end, the paste exuding through the opening I6.
If it be desired to replace the brush units, the holder I is unscrewed from the handle, the members 2 and 3 opened up (as shown in Figure 3) which frees the units. Other units may be quickly inserted,the members I and 2 drawn together and the holder threaded into the handle.
In the modified form of the invention shown in Figures 8 and 9, a solid handle 20 is employed, the handle having a cut out portion 2|, to form a seat for the brush units. The units are the same and are spaced the same as before described, except that in lieu of trunnions, the pins 9 l2 are used, the pins passing through aligned openings in the side walls of the cutout portion 2|. a
The' units in this construction operate exactly the same as the preferred form of the 'invention.
From the foregoing description, it is evident I have provided a brush which, when in use, imparts an oscillating action to the bristles, which insures of the bristles engaging the entire exposed tion when the handle is moved in the opposite direction. It is to be noted further that the blocks are free to swing on their pivots in response to the resistance of the bristles on the teeth in the movement of the handle and that 0 this freedom of movement of the blocks is limited in both directions by engagement with the adjacent blocks. Therefore, the blocks have a limited free swinging movement during the cleansing operation and this swinging movement is controlled by the contact of the bristles with the teeth and is reversed in each operative longitudinal movement of the handle.
What I claim is:
A tooth brush having a bristle body of hollow formation, including side bars, a series of blocks pivotally mounted in the side bars transversely of the bristle body and free for limited swinging movement in both directions, each of the blocks having a length exceeding the thickness and with the pivots extending from the bars at approximately mid-length of their side walls, the blocksin their pivoted relation being spaced apart from each other and from the ends of the hollow formation of the body in which they are mounted. with the spacing such to permit free swinging movement of each bar in either direction until the respective end walls of adjacent blocks contact to limit such swinging movement, the free limited swinging movement of the blocks being designed to arrange the bristles at relatively reverse inclinations to the plane of the body in the reciprocating movements. of the body during the use of the brush in cleaning the teeth.
GABRIEL ROMANI Y ROBERT.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2418344 *||Jan 12, 1945||Apr 1, 1947||Goldberg Abraham A||Toothbrush|
|US2558290 *||Nov 1, 1946||Jun 26, 1951||Homer A Brown||Removable bristle brush|
|US2893031 *||Nov 25, 1957||Jul 7, 1959||Rudolf Dengler||Disposable head tooth brush|
|US4269207 *||Dec 27, 1979||May 26, 1981||Czeslaw Konrad||Combined toothbrush-toothpaste container|
|US4622984 *||Apr 4, 1984||Nov 18, 1986||Gaebel Gary R||Toothbrush|
|US4827550 *||May 4, 1988||May 9, 1989||Dental Research Corporation||Removable head mechanism for automatic cleaning device|
|US5158383 *||Jun 21, 1991||Oct 27, 1992||International Consumer Products||Paste dispensing brush|
|US5242235 *||Aug 5, 1992||Sep 7, 1993||Jianxing Li||Toothbrush|
|US5269038 *||Aug 16, 1991||Dec 14, 1993||Bradley Terry G||Rocker toothbrush|
|US5398366 *||Sep 10, 1993||Mar 21, 1995||Bradley; Terry||Rocker toothbrush|
|US5651158 *||May 9, 1995||Jul 29, 1997||Lingner & Fischer Gmbh||Toothbrush with resiliently flexible head|
|US5836036 *||Jun 20, 1997||Nov 17, 1998||Ivory; Brian||Self cleaning toothbrush|
|US5839148 *||Apr 17, 1997||Nov 24, 1998||The Procter & Gamble Company||Toothbrush with both stationary and moving tufts|
|US5974614 *||Mar 2, 1998||Nov 2, 1999||Ross; Keith B.||Triple brush gum blaster|
|US6178582||Aug 22, 1996||Jan 30, 2001||Smithkline Beecham Consumer Healthcare Gmbh||Toothbrush comprising a resilient flex region|
|US6219874||Jul 12, 1995||Apr 24, 2001||The Procter & Gamble Co.||Resiliently flexible bristle bearing head toothbrush|
|US6314605||Aug 1, 1997||Nov 13, 2001||The Procter & Gamble Company||Toothbrush|
|US6327735||Feb 17, 1998||Dec 11, 2001||Smithkline Beecham Consumer Healthcare, Gmbh||Power tip toothbrush with ball joint|
|US6408476||Jan 17, 1997||Jun 25, 2002||The Procter & Gamble Company||Toothbrush with elastomer filled flexible head|
|US6442786||Jan 25, 2001||Sep 3, 2002||Smithkline Beecham Consumer Healthcare Gmbh||Toothbrush comprising a resilient flex region|
|US6505373||Apr 18, 2001||Jan 14, 2003||The Procter & Gamble Company||Toothbrush|
|US6514445||Dec 12, 1997||Feb 4, 2003||The Procter & Gamble Company||Brush making|
|US6675428||Dec 15, 2000||Jan 13, 2004||Smithkline Beecham Consumer Healthcare Gmbh||Toothbrush comprising a resilient flex region|
|US6952854||Aug 27, 2004||Oct 11, 2005||The Procter & Gamble Company||Complex motion toothbrush|
|US7124461||Aug 30, 2004||Oct 24, 2006||The Procter & Gamble Company||Complex motion toothbrush|
|US7354112||Feb 27, 2006||Apr 8, 2008||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|US7445295||Nov 30, 2007||Nov 4, 2008||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|US7451514||Aug 29, 2006||Nov 18, 2008||The Procter & Gamble Company||Complex motion toothbrush|
|US7458647||Nov 30, 2007||Dec 2, 2008||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|US7478960||Sep 21, 2004||Jan 20, 2009||Glover J Scott||Dispensing brush|
|US7520571||Feb 11, 2008||Apr 21, 2009||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|US7636976||Jul 20, 2006||Dec 29, 2009||The Procter & Gamble Company||Power toothbrush|
|US7640614||May 8, 2007||Jan 5, 2010||The Procter & Gamble Company||Multi motion toothbrush|
|US7640615||Jul 14, 2006||Jan 5, 2010||The Procter & Gamble Company||Electric toothbrushes|
|US7698771||Dec 17, 2004||Apr 20, 2010||The Procter & Gamble Company||Electric toothbrush|
|US7707676||Jun 30, 2006||May 4, 2010||The Procter & Gamble Company||Toothbrush|
|US7725973||Aug 16, 2007||Jun 1, 2010||The Procter & Gamble Company||Electric toothbrushes|
|US7761947||Feb 21, 2006||Jul 27, 2010||The Procter & Gamble Company||Complex motion toothbrush|
|US7810201||Dec 3, 2007||Oct 12, 2010||Braun Gmbh||Toothbrushes|
|US7832042||Nov 4, 2008||Nov 16, 2010||The Gillette Company||Brush head for toothbrush|
|US7861348||Dec 7, 2005||Jan 4, 2011||The Procter & Gamble Company||Electric toothbrushes|
|US7861350||Dec 11, 2009||Jan 4, 2011||The Procter & Gamble Company||Multi-motion toothbrush|
|US7917984||Dec 14, 2009||Apr 5, 2011||The Procter & Gamble Company||Electric toothbrushes|
|US7941886||May 17, 2011||Braun Gmbh||Toothbrushes|
|US7962992||Dec 23, 2005||Jun 21, 2011||The Procter & Gamble Company||Toothbrush with elastomer filled flexible head|
|US7975344||Jul 6, 2007||Jul 12, 2011||The Gillette Company||Toothbrush head|
|US7988238||Mar 11, 2009||Aug 2, 2011||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|US8060970||Mar 11, 2010||Nov 22, 2011||The Procter & Gamble Company||Toothbrush|
|US8096011||Dec 16, 2010||Jan 17, 2012||The Procter & Gamble Company||Electric toothbrushes|
|US8156600||Sep 9, 2008||Apr 17, 2012||The Gillette Company||Gum massaging oral brush|
|US8281443||Dec 9, 2010||Oct 9, 2012||The Procter & Gamble Company||Multi-motion toothbrush|
|US8327492||May 16, 2011||Dec 11, 2012||The Procter & Gamble Company||Toothbrush with elastomer filled flexible head|
|US8332982||Aug 24, 2009||Dec 18, 2012||The Gillette Company||Vibrating toothbrush|
|US8332985||Nov 18, 2011||Dec 18, 2012||The Procter & Gamble Company||Toothbrush|
|US8528148||Jun 7, 2011||Sep 10, 2013||The Gillette Company||Toothbrush head|
|US8584299||Jul 25, 2007||Nov 19, 2013||The Procter & Gamble Company||Electric toothbrushes|
|US8621698||Apr 6, 2011||Jan 7, 2014||Braun Gmbh||Toothbrushes|
|US8955186||Oct 15, 2013||Feb 17, 2015||The Procter & Gamble Company||Electric toothbrushes|
|US20050005376 *||Aug 30, 2004||Jan 13, 2005||The Procter & Gamble Company||Complex motion toothbrush|
|US20050111905 *||Sep 21, 2004||May 26, 2005||Glover J. S.||Dispensing brush|
|US20050147461 *||Mar 3, 2005||Jul 7, 2005||Glover J. S.||Dispensing brush|
|US20060130257 *||Dec 23, 2005||Jun 22, 2006||Cann David V||Toothbrush with elastomer filled flexible head|
|US20060254006 *||Jul 14, 2006||Nov 16, 2006||The Procter & Gamble Company||Electric toothbrushes|
|US20060288505 *||Aug 29, 2006||Dec 28, 2006||The Procter & Gamble Company||Complex motion toothbrush|
|US20070110503 *||Jun 7, 2006||May 17, 2007||Glover J S||Dispensing brush with replaceable cartridge/handle part|
|US20090106923 *||Nov 4, 2008||Apr 30, 2009||The Gillette Company||Brush head for toothbrush|
|USD457728||Jan 4, 2002||May 28, 2002||The Procter & Gamble Company||Head portion of an electric toothbrush|
|USD458030||Jan 4, 2002||Jun 4, 2002||The Procter & Gamble Company||Head portion of an electric toothbrush|
|USD458455||Jan 4, 2002||Jun 11, 2002||The Procter & Gamble Company||Head portion of an electric toothbrush|
|USD499884||Mar 15, 2002||Dec 21, 2004||The Procter & Gamble Company||Electric toothbrush|
|USRE38521||Jul 28, 1999||May 25, 2004||Lingner & Fischer Gmbh||Toothbrush with resiliently flexible head|
|USRE42985||Dec 20, 2002||Dec 6, 2011||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|USRE44346||Dec 20, 2002||Jul 9, 2013||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|USRE44819||Apr 8, 2004||Apr 1, 2014||Procter & Gamble Business Services Canada Company||Toothbrush|
|USRE45141||Dec 20, 2002||Sep 23, 2014||Trisa Holding Ag||Toothbrush and process for producing such a toothbrush|
|WO1983002218A1 *||Dec 30, 1982||Jul 7, 1983||Sylvain Nahum||Tooth brush|
|WO1992017094A1 *||Mar 30, 1992||Oct 15, 1992||Terry G Bradley||Rocker toothbrush|
|WO2008121010A1 *||Apr 2, 2008||Oct 9, 2008||Gary Craig Prowse||Brush with pivoting bristle platform|
|U.S. Classification||15/167.1, 401/286, 401/175, 15/202, 401/137, 15/176.1, 15/22.1, 401/268|