CA2324816A1 - Improved mechanical toothbrush having opposed dual heads and having oscillatory movement - Google Patents
Improved mechanical toothbrush having opposed dual heads and having oscillatory movement Download PDFInfo
- Publication number
- CA2324816A1 CA2324816A1 CA 2324816 CA2324816A CA2324816A1 CA 2324816 A1 CA2324816 A1 CA 2324816A1 CA 2324816 CA2324816 CA 2324816 CA 2324816 A CA2324816 A CA 2324816A CA 2324816 A1 CA2324816 A1 CA 2324816A1
- Authority
- CA
- Canada
- Prior art keywords
- head portion
- bristle
- longitudinal axis
- brush head
- bundles
- 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.)
- Granted
Links
- 230000003534 oscillatory effect Effects 0.000 title abstract 3
- 230000009977 dual effect Effects 0.000 title 1
- 241000549893 Carphochaete Species 0.000 abstract 4
Landscapes
- Brushes (AREA)
Abstract
An electric toothbrush is provided with an electric motor and a driving mechanism. The driving mechanism includes a motion translation means to convert rotary motion to oscillatory movement of a drive shaft adapted to be received on the brush head portion of the electric toothbrush, so as to impart an oscillatory movement of the head portion about its longitudinal axis. A particular driving mechanism includes a flywheel having a drive pin which is received in a cam block secured to the drive shaft. The brush head portion comprises a pair of opposed bristle head portions arranged so as to present two groups of opposed bundles of bristles disposed substantially perpendicularly each to the other. Each of the groups of bundles of bristles comprises a plurality of rows and a plurality of columns of bristle bundles, where the rows aligned parallel to the longitudinal axis of the brush head portion, and the columns are aligned perpendicular to the longitudinal axis of the brush head portion. The bristles in each bundle in each row of bristle bundles are substantially equal in length, and the lengths of the bristles in each row of bristle bundles on each bristle head portion are progressively longer in each successive row of bristle bundles which is further away from the longitudinal axis of the brush head portion than an adjacent row of bristle bundles which is closer to the longitudinal axis of the brush head portion. The outer ends of the respective row of bristle bundles on each bristle head portion which is closest to the longitudinal axis of the brush head portion are spaced less than 0.100 inch from the outer ends of the respective opposed row of bristle bundles on the other bristle head portion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/510,501 | 2000-02-22 | ||
US09/510,501 US6401288B1 (en) | 1999-04-23 | 2000-02-22 | Mechanical toothbrush with opposed dual heads and having oscillatory movement |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2324816A1 true CA2324816A1 (en) | 2001-08-22 |
CA2324816C CA2324816C (en) | 2006-06-27 |
Family
ID=24031004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2324816 Expired - Fee Related CA2324816C (en) | 2000-02-22 | 2000-10-31 | Improved mechanical toothbrush having opposed dual heads and having oscillatory movement |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2324816C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112674900A (en) * | 2019-10-17 | 2021-04-20 | 郑云兵 | Oscillating electric toothbrush |
CN112773543A (en) * | 2021-03-02 | 2021-05-11 | 雷德贵 | Electric toothbrush head and electric toothbrush |
-
2000
- 2000-10-31 CA CA 2324816 patent/CA2324816C/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112674900A (en) * | 2019-10-17 | 2021-04-20 | 郑云兵 | Oscillating electric toothbrush |
CN112773543A (en) * | 2021-03-02 | 2021-05-11 | 雷德贵 | Electric toothbrush head and electric toothbrush |
Also Published As
Publication number | Publication date |
---|---|
CA2324816C (en) | 2006-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |