US3493991A - Resilient tooth brush with adjustable pressure point - Google Patents
Resilient tooth brush with adjustable pressure point Download PDFInfo
- Publication number
- US3493991A US3493991A US663119A US3493991DA US3493991A US 3493991 A US3493991 A US 3493991A US 663119 A US663119 A US 663119A US 3493991D A US3493991D A US 3493991DA US 3493991 A US3493991 A US 3493991A
- Authority
- US
- United States
- Prior art keywords
- handle
- members
- sections
- brush
- force
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
- A46B15/0012—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with a pressure controlling device
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
- A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G3/00—Attaching handles to the implements
- B25G3/38—Hinged, pivoted, swivelling, or folding joints
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/90—Handle with angularly adjustable component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32819—Pivoted including tension or take-up means
- Y10T403/32844—Manually variable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/54—Flexible member is joint component
Definitions
- the present invention concerns improvements in or relating to toothbrushes.
- the type of brush normally employed for dental hygiene purposes is substantially formed of a single rigid member which at one end is provided with bristles, while the other end serves as the handle.
- the user acts manually on the handle of the brush so that the bristles sweep over the teeth with an alternating movement in the appropriate direction so that the toothpaste thoroughly cleanses the dental surfaces.
- the pressure exerted by the hand of the user in performing such a function cannot be said in the majority of cases to result in the best preservation of theteeth and gums.
- the brush is used with the expenditure of more or less energy depending upon the temperament and sensitivity of the user. It has been observed, however, that in certain cases repeated use of known brushes effected without necessary precautions may cause lesions which adversely affect the normal conditions of the teeth and the sockets thereof.
- the handle of toothbrushes In order to specifically limit the degree of pressure that may be exerted through the brush, it has been found desirable to construct the handle of toothbrushes so that, when the user exceeds the yielding point of the resilient component connecting the members of the handle, the latter are reciprocally urgedto pass from the normal rectilinear position of alignment to a relatively angled position.
- a brush for dental hygiene which comprises a handle formed of two or more members constituting opposite levers and having a common connecting point as established by a fulcrum between the members themselves which are connectable together by a resilient member.
- the return of the handle to the straight position, ac; cording to the concept of the present invention may be also adjusted from case to case and graduated as desired according to the personal requirements of the user so that, for any particular type of brush, the pressure which can be exerted on the teeth and gums is the most suitable from the point of dental hygiene.
- FIGURE 1 is a side view of a first embodiment of the 3,493,991 Patented Feb. 10, 1970 invention showing the hinge connection 4 between the two members 2 and 7 of the toothbrush as being positioned along the longitudinal axis of said two members;
- FIGURE 2 is a partial side view of a second embodiment of the invention showing the hinge connection 10 as being positioned at the mating terminals of the notched portions of members 8 and 13 of the toothbrush;
- FIGURES 3 and 4 are partial side views of a third and fourth embodiments of the invention showing the hinge connections 18 and 28, respectively, as being positioned at opposite terminals of the notched portions of members 16-19, and 24-25, respectively, of the toothbrush;
- FIGURE 5 is a partial side view of a fifth embodiment of the invention, in which the members 32 and 33 of the toothbrush are operable by means of a nut-containing adjustable traction member 37;
- FIGURE 6 is a partial side view of a sixth embodiment of the invention, in which the members 39 and 40 of the toothbrush are operable by means of a controllable inner member 42.
- the handle of the brush is formed by two L-shaped members 23 and 7-6 with the sections 3 and 6 being opposite to each other.
- the member 2-3 comprises the bristles 1 at the end of straight section 2 and the member 7-6 forms the handle with its straight section 7.
- a resilient member 5 which may be a band of rubber is mounted on the sections 3 and 6 of the said members 2-3 and 7-6.
- FIGURE 2 shows an arrangement similar to the one shown in FIGURE 1.
- the sections 9 and 11 of the top members 8-9 and 13-11 instead of being upwardly directed are downwardly directed with respect to the bristles (not shown).
- the hinge 10 connects the two members together at the lower end of the sections 9 and 11.
- the resilient member 12 which may be a band of rubber is also positioned in the notches 14 and 15 on the sections 9 and 11.
- the two members 8-9 and 13-11 function exactly as two levers opposite to each other at point 10, which functions as a pivot point for both levers.
- the resilient member 12 acts on the notches 14 and 15 so as to resist the action of the forces acting at both ends of sections 8 and 13 of the members 8-9 and 13-11.
- FIGURE 3 a different construction is shown of the two members forming the handle of the brush.
- These members 16-23 and 19-22 are provided with dove-tailed regions in their respective end sections 23 and 22.
- a connecting hinge 18 is inserted between the cutaway end section 23 of the member 16-23 and the middle of the plane of the member 22-19.
- the resilient connection between the two is obtained by means of member 17 which may be located in the corresponding notches 21 and 22 formed on the end sections 23 and 22.
- the two members 16-23 and 19-22 act as two levers opposite to each other at the point 18 which serves for both levers as a fulcrum.
- FIGURE 4 shows another embodiment of the invention, in which the handle of the brush has the same features as those for the brush handle shown in FIGURE 3 but structurally in reversed order.
- the two members 2426 and 25-27 function as two opposite levers with a common pivot point at the hinge 28.
- the resilient member 29 which may be a band of rubber exerts on the end sections 26 and 27, and more particularly on the notches 30 and 31 thereof, a force opposite to the forces applied at the two end sections 24 and 25 of the members 2426 and 25-27.
- FIGURE shows another version of a brush handle in which two members 32 and 33 of the handle have projections 34 and 35 extending upwardly from the surfaces of the members 32 and 33.
- the projections 34 and 35 extend in the direction of the bristles (not shown).
- a hinge 36 is provided between these projections for connecting the ends of the two members 32 and 33 together and is positioned in the upper portion of the handle.
- a resilient connecting member 37 has a traction effect and the adjustment in the traction may be obtained by rotating an adjustment nut 38, the operation of which is opposed by the projection 35 and the thread of the nut engaging threading of the screw formed in the projection 35 of the member 33.
- the two members 32 and 33 act as two opposite levers, the common fulcrum of which is positioned at the hinge 36, while the resilient member 37 exerts a force at the points 34 and 35 counteracting the force exerted at both ends of the members 32 and 33.
- FIGURE 6 shows another embodiment of opposing levers in the handle of a toothbrush.
- the two members 39 and 40 of the handle each have an internal cavity 43-44.
- the cavity 43, formed in the member 39 extends only a short distance, while the internal cavity 44 extends over the complete length of the member 40 and has a screw thread 49 at one end engageable by the mating thread 48 of a nut 47.
- a resilient member 42 is firmly connected to the member 39 at the end of the cavity 43 and to the member 40 by being secured to the nut 47.
- the resilient member exerts a traction efiect so that, in the resting position, the two members 39 and 40 are held relatively straight with the end surfaces fitting together perpendicularly to their respective longitudinal axes. However, by applying a force at the ends 39 and 40, the resilient member 42 extends and exerts a force at the points 45 and 46, the point 41 being the fulcrum of the two opposing levers 39-45 and 40-46.
- a toothbrush having a brush head, a two section handle of which one section supports the brush head and hinge means securing the two handle sections to each other, the improvement comprising the combination of:
- (c) means for changing the magnitude of the force applied by said resilient member on the two handle sections whereby the two handle sections will move relative to each other when the predetermined force on the brush head is exceeded.
- said support means comprises a post extending outwardly from each handle section and said force changing means comprises a plurality of axially spaced notches on each of said posts, the end portions of said resilient member being positioned in selected ones of said notches.
- said support means comprise a post extending coaxially with each of the handle sections and said force changing means comprises a plurality of axially spaced notches on each of said posts, the end portions of said resilient member being positioned in selected ones of said notches.
- said force changing means comprises a member threadably secured in one of said support means and connected to one of the end portions of said resilient member whereby rotation of said threaded member will change the force applied by said resilient member.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2162666 | 1966-09-16 | ||
IT6640766 | 1966-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3493991A true US3493991A (en) | 1970-02-10 |
Family
ID=26327949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US663119A Expired - Lifetime US3493991A (en) | 1966-09-16 | 1967-08-24 | Resilient tooth brush with adjustable pressure point |
Country Status (10)
Country | Link |
---|---|
US (1) | US3493991A (de) |
AT (1) | AT285807B (de) |
BE (1) | BE701891A (de) |
CH (1) | CH459144A (de) |
DE (1) | DE1632377A1 (de) |
DK (1) | DK119602B (de) |
ES (1) | ES343013A1 (de) |
GB (1) | GB1194055A (de) |
LU (1) | LU54378A1 (de) |
NL (1) | NL6712131A (de) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0020268A1 (de) * | 1979-05-30 | 1980-12-10 | Celluloid S.A. | Faltbarer und verpackbarer Toilettartikel, z.B. Zahnbürste |
US4261279A (en) * | 1978-06-12 | 1981-04-14 | Johnson Leonard W | Fender for floating vessel |
US4680825A (en) * | 1985-09-10 | 1987-07-21 | Larry White | Pressure-sensing toothbrush holder |
US5309596A (en) * | 1993-03-23 | 1994-05-10 | The Gillette Company | Interproximal brush |
US5355544A (en) * | 1993-11-22 | 1994-10-18 | The Procter & Gamble Company | Force-indicating toothbrush using magnetic latching |
US5377377A (en) * | 1993-03-23 | 1995-01-03 | Gillette Canada Inc. | Interproximal brush |
US5467494A (en) * | 1993-07-30 | 1995-11-21 | U.S. Philips Corporation | Toothbrush |
USD413728S (en) * | 1997-12-17 | 1999-09-14 | Colgate-Palmolive Company | Toothbrush |
WO2000030493A3 (de) * | 1998-11-20 | 2000-07-27 | Schiffer Fa M & C | Bürste, insbesondere zahnbürste |
US6178582B1 (en) | 1992-03-25 | 2001-01-30 | Smithkline Beecham Consumer Healthcare Gmbh | Toothbrush comprising a resilient flex region |
WO2001021035A1 (en) * | 1999-09-17 | 2001-03-29 | Placontrol, Inc. | Automatic pressure release toothbrush ii/iii |
US6327735B1 (en) | 1997-02-24 | 2001-12-11 | Smithkline Beecham Consumer Healthcare, Gmbh | Power tip toothbrush with ball joint |
US6330730B1 (en) * | 1997-08-01 | 2001-12-18 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Toothbrush |
US6389636B1 (en) * | 1999-01-29 | 2002-05-21 | Unilever Home & Personal Care Usa, Co, Division Of Conopco, Inc. | Toothbrush |
US20030056311A1 (en) * | 1999-12-14 | 2003-03-27 | Gerd Broecker | Toothbrush |
US6611984B1 (en) * | 1997-09-26 | 2003-09-02 | Smithkline Beecham Gmbh & Co. Kg | Toothbrush |
USRE38521E1 (en) | 1991-03-27 | 2004-05-25 | Lingner & Fischer Gmbh | Toothbrush with resiliently flexible head |
US20050015906A1 (en) * | 2003-07-03 | 2005-01-27 | Gerard Baglieri | Force-responsive toothbrush |
US7281289B1 (en) | 1999-09-17 | 2007-10-16 | Placontrol, Inc. | Automatic pressure release toothbrush |
US20080184511A1 (en) * | 2007-02-02 | 2008-08-07 | The Gillette Company | Oral hygiene implements having flexible elements, and methods of making the same |
US20120110763A1 (en) * | 2010-09-20 | 2012-05-10 | Uwe Jungnickel | Force sensing oral care instrument |
WO2022072543A1 (en) * | 2020-09-29 | 2022-04-07 | Rocking Inc. | Portable rebounding device with force adjustment assembly |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2573785B1 (fr) * | 1984-11-23 | 1986-12-12 | Faurisson Yvette | Balai de voirie articule |
DE3612108A1 (de) * | 1986-04-10 | 1987-10-15 | Rainer Dr Seib | Zahnbuerste mit elastischem verbindungselement zwischen buerstenkopf und griff |
DE3921371C1 (en) * | 1989-06-29 | 1990-08-30 | Josef 7888 Rheinfelden De Scheller | Tooth brush with resiliently deflectable brush head - has swivel joint above tensile spring fastening point, as bolt through head facing end of handle |
DE3923495C1 (de) * | 1989-07-15 | 1991-01-24 | M + C Schiffer Gmbh, 5466 Neustadt, De | |
DE4019313C1 (de) * | 1990-06-16 | 1991-08-29 | Robert 4350 Recklinghausen De Heuckmann | |
US5630244A (en) * | 1996-01-02 | 1997-05-20 | Chang; Ching-Min | Elastic toothbrush |
US6883200B1 (en) * | 1999-10-01 | 2005-04-26 | Heinrich Georg Euler | Tooth brush |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US680365A (en) * | 1899-12-18 | 1901-08-13 | Wilhelm Stark | Tooth-brush. |
US758764A (en) * | 1901-12-21 | 1904-05-03 | William A Macleod | Tooth-brush. |
US759490A (en) * | 1902-12-08 | 1904-05-10 | Florence Mfg Company | Tooth-brush. |
US1025751A (en) * | 1911-05-04 | 1912-05-07 | August Otto Kretzschmar | Tooth-brush. |
US1466723A (en) * | 1921-11-12 | 1923-09-04 | Izawa Riichiro | Toothbrush |
US2083217A (en) * | 1934-07-14 | 1937-06-08 | Edwin I Brothers | Prophylactic device for the oral cavity |
US2254365A (en) * | 1939-06-06 | 1941-09-02 | Edward E Griffith | Convertible toothbrush |
US2286655A (en) * | 1941-10-01 | 1942-06-16 | Supnick Frederick | Mop handle and the like |
US2676350A (en) * | 1953-03-16 | 1954-04-27 | Stanley Home Products Inc | Toothbrush with a flexible head |
US3254356A (en) * | 1964-08-31 | 1966-06-07 | Kou C Yao | Combined toothbrush, tongue scraper and ear cleaner |
-
1967
- 1967-06-28 CH CH915367A patent/CH459144A/it unknown
- 1967-07-13 ES ES343013A patent/ES343013A1/es not_active Expired
- 1967-07-25 DE DE19671632377 patent/DE1632377A1/de active Pending
- 1967-07-27 BE BE701891D patent/BE701891A/xx unknown
- 1967-07-31 AT AT712967A patent/AT285807B/de not_active IP Right Cessation
- 1967-08-11 GB GB36993/67A patent/GB1194055A/en not_active Expired
- 1967-08-14 DK DK411167AA patent/DK119602B/da unknown
- 1967-08-24 US US663119A patent/US3493991A/en not_active Expired - Lifetime
- 1967-08-25 LU LU54378D patent/LU54378A1/xx unknown
- 1967-09-05 NL NL6712131A patent/NL6712131A/xx unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US680365A (en) * | 1899-12-18 | 1901-08-13 | Wilhelm Stark | Tooth-brush. |
US758764A (en) * | 1901-12-21 | 1904-05-03 | William A Macleod | Tooth-brush. |
US759490A (en) * | 1902-12-08 | 1904-05-10 | Florence Mfg Company | Tooth-brush. |
US1025751A (en) * | 1911-05-04 | 1912-05-07 | August Otto Kretzschmar | Tooth-brush. |
US1466723A (en) * | 1921-11-12 | 1923-09-04 | Izawa Riichiro | Toothbrush |
US2083217A (en) * | 1934-07-14 | 1937-06-08 | Edwin I Brothers | Prophylactic device for the oral cavity |
US2254365A (en) * | 1939-06-06 | 1941-09-02 | Edward E Griffith | Convertible toothbrush |
US2286655A (en) * | 1941-10-01 | 1942-06-16 | Supnick Frederick | Mop handle and the like |
US2676350A (en) * | 1953-03-16 | 1954-04-27 | Stanley Home Products Inc | Toothbrush with a flexible head |
US3254356A (en) * | 1964-08-31 | 1966-06-07 | Kou C Yao | Combined toothbrush, tongue scraper and ear cleaner |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4261279A (en) * | 1978-06-12 | 1981-04-14 | Johnson Leonard W | Fender for floating vessel |
EP0020268A1 (de) * | 1979-05-30 | 1980-12-10 | Celluloid S.A. | Faltbarer und verpackbarer Toilettartikel, z.B. Zahnbürste |
FR2457657A1 (fr) * | 1979-05-30 | 1980-12-26 | Celluloid Sa | Ustensile de toilette, par exemple brosse a dents repliable et conditionnable |
US4680825A (en) * | 1985-09-10 | 1987-07-21 | Larry White | Pressure-sensing toothbrush holder |
USRE38521E1 (en) | 1991-03-27 | 2004-05-25 | Lingner & Fischer Gmbh | Toothbrush with resiliently flexible head |
US6442786B2 (en) | 1992-02-06 | 2002-09-03 | Smithkline Beecham Consumer Healthcare Gmbh | Toothbrush comprising a resilient flex region |
US6675428B2 (en) | 1992-03-25 | 2004-01-13 | Smithkline Beecham Consumer Healthcare Gmbh | Toothbrush comprising a resilient flex region |
US6178582B1 (en) | 1992-03-25 | 2001-01-30 | Smithkline Beecham Consumer Healthcare Gmbh | Toothbrush comprising a resilient flex region |
US5309596A (en) * | 1993-03-23 | 1994-05-10 | The Gillette Company | Interproximal brush |
US5377377A (en) * | 1993-03-23 | 1995-01-03 | Gillette Canada Inc. | Interproximal brush |
US5467494A (en) * | 1993-07-30 | 1995-11-21 | U.S. Philips Corporation | Toothbrush |
US5355544A (en) * | 1993-11-22 | 1994-10-18 | The Procter & Gamble Company | Force-indicating toothbrush using magnetic latching |
US6327735B1 (en) | 1997-02-24 | 2001-12-11 | Smithkline Beecham Consumer Healthcare, Gmbh | Power tip toothbrush with ball joint |
US6330730B1 (en) * | 1997-08-01 | 2001-12-18 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Toothbrush |
US6611984B1 (en) * | 1997-09-26 | 2003-09-02 | Smithkline Beecham Gmbh & Co. Kg | Toothbrush |
USD413728S (en) * | 1997-12-17 | 1999-09-14 | Colgate-Palmolive Company | Toothbrush |
WO2000030493A3 (de) * | 1998-11-20 | 2000-07-27 | Schiffer Fa M & C | Bürste, insbesondere zahnbürste |
US6389636B1 (en) * | 1999-01-29 | 2002-05-21 | Unilever Home & Personal Care Usa, Co, Division Of Conopco, Inc. | Toothbrush |
WO2001021035A1 (en) * | 1999-09-17 | 2001-03-29 | Placontrol, Inc. | Automatic pressure release toothbrush ii/iii |
US7281289B1 (en) | 1999-09-17 | 2007-10-16 | Placontrol, Inc. | Automatic pressure release toothbrush |
US20030056311A1 (en) * | 1999-12-14 | 2003-03-27 | Gerd Broecker | Toothbrush |
US6990706B2 (en) * | 1999-12-14 | 2006-01-31 | Glaxosmithkline Consumer Healthcare Gmbh & Co Kg | Toothbrush |
US20050015906A1 (en) * | 2003-07-03 | 2005-01-27 | Gerard Baglieri | Force-responsive toothbrush |
US20080184511A1 (en) * | 2007-02-02 | 2008-08-07 | The Gillette Company | Oral hygiene implements having flexible elements, and methods of making the same |
US8578544B2 (en) | 2007-02-02 | 2013-11-12 | The Gillette Company | Oral hygiene implements having flexible elements, and methods of making the same |
US9504312B2 (en) | 2007-02-02 | 2016-11-29 | The Gillette Company Llc | Oral hygiene implements having flexible elements, and methods of making the same |
US20120110763A1 (en) * | 2010-09-20 | 2012-05-10 | Uwe Jungnickel | Force sensing oral care instrument |
US8832895B2 (en) * | 2010-09-20 | 2014-09-16 | Braun Gmbh | Force sensing oral care instrument |
WO2022072543A1 (en) * | 2020-09-29 | 2022-04-07 | Rocking Inc. | Portable rebounding device with force adjustment assembly |
CN116887721A (zh) * | 2020-09-29 | 2023-10-13 | 罗金有限责任公司 | 具有力调节组件的便携式回弹装置 |
Also Published As
Publication number | Publication date |
---|---|
LU54378A1 (de) | 1967-10-25 |
GB1194055A (en) | 1970-06-10 |
DE1632377A1 (de) | 1971-11-04 |
ES343013A1 (es) | 1968-10-01 |
NL6712131A (de) | 1968-03-18 |
AT285807B (de) | 1970-11-10 |
DK119602B (da) | 1971-02-01 |
BE701891A (de) | 1968-01-02 |
CH459144A (it) | 1968-07-15 |
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