US5165135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: GOLDEN STAR ORIENTAL Sdn Bhd
•
Filing: 1991-10-22
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Granted: 1992-11-24
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Expires: 2011-10-22
Abstract
Abstract A novel construction of a toothbrush is provided which allows a bristle-carrying brushing head to turn around its own axis and the said head is connectable to the distal end of an elongated handle at an angle to the plane of the said handle.
Inventors
- 👤 Chan B. Su
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/08; A46B9/10; A46B7/00; A46B7/02; A46B7/04; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
249 words
A toothbrush comprising: an elongated handle defined by a first section and a second section, each of the first and second sections having a proximal end, a distal end and a longitudinal axis extending from the proximal end to the distal end; a first pivot support for pivotally coupling the proximal end of the second section to the distal end of the first section, such that the second section can be pivoted relative to the first section about a first pivot axis defined by the first pivot support; a brushing head having a first end, an opposite second end and a longitudinal axis extending through the first and second ends, the brushing head including a plurality of cleaning bristles that extend perpendicular to the longitudinal axis of the brushing head and span the entire area of the brushing head from the first end to the second end along the longitudinal axis; and a second pivot support for pivotally coupling the first end of the brushing head to the distal end of the second section, such that the brushing head can be pivoted relative to the second section about its longitudinal axis, wherein the longitudinal axis of the brushing head extends parallel to the second pivot axis, wherein the brushing head is mounted at an angle with respect to the second section and wherein the mounting angle is greater than 90 degrees as measured between the longitudinal axis of the brushing head and the longitudinal axis of the second section.
Claim 2
Dependent Claim
249 words
A toothbrush comprising: an elongated handle defined by a first section and a second section, each of the first and second sections having a proximal end, a distal end and a longitudinal axis extending from the proximal end to the distal end; a first pivot support for pivotally coupling the proximal end of the second section to the distal end of the first section, such that the second section can be pivoted relative to the first section about a first pivot axis defined by the first pivot support; a brushing head having a first end, an opposite second end and a longitudinal axis extending through the first and second ends, the brushing head including a plurality of cleaning bristles that extend perpendicular to the longitudinal axis of the brushing head and span the entire area of the brushing head from the first end to the second end along the longitudinal axis; and a second pivot support for pivotally coupling the first end of the brushing head to the distal end of the second section, such that the brushing head can be pivoted relative to the second section about its longitudinal axis, wherein the longitudinal axis of the brushing head extends parallel to the second pivot axis, wherein the brushing head is mounted at an angle with respect to the second section and wherein the mounting angle is greater than 90 degrees as measured between the longitudinal axis of the brushing head and the longitudinal axis of the second section.
Claim 3
Dependent Claim
17 words
The toothbrush of claim 1 wherein free ends of the cleaning bristles define a wave form configuration.
Claim 4
Dependent Claim
18 words
The toothbrush of claim 2 wherein the elongated handle, brushing head and cleaning bristles are formed from plastic.
Claim 5
Dependent Claim
32 words
The toothbrush of claim 1 wherein the mounting angle is less than 145 degrees as measured between the longitudinal axis of the brushing head and a longitudinal axis of the second section.
Claim 6
Dependent Claim
26 words
The toothbrush of claim 1 wherein the brushing head can pivot about its longitudinal axis through a range of movement between 145 degrees and 250 degrees.
Claim 7
Dependent Claim
21 words
The toothbrush of claim 5 wherein the range of movement of the brushing head about its longitudinal axis is 200 degrees.
Claim 8
Dependent Claim
73 words
The toothbrush of claim 1 wherein the first pivot support includes a pin closely received within aligned apertures in the proximal end of the second section and the distal end of the first section to form a pivot joint that resists pivotal movement of the second section during normal use of the toothbrush but is readily responsive to torque applied by a user to pivot the second section about the first pivot axis.
Claim 9
Dependent Claim
68 words
The toothbrush of claim 1 wherein the second pivot support includes a pin closely received within aligned apertures in the brushing head and the distal end of the second section to form a pivot joint that resists pivotal movement of the brushing head during normal use of the toothbrush but is readily responsive to torque applied by a user to pivot the brushing head about its longitudinal axis.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-24 | 1996-05-25 | 1996-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-24 | 2000-05-25 | 2000-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-24 | 2004-05-25 | 2004-11-24 | $7700.00 | Window Closed / Lapsed |