US4763375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: Individual
•
Filing: 1986-08-08
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Granted: 1988-08-16
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Expires: 2006-08-08
Abstract
Abstract An improved toothbrush having a handle and two sets of bristles; one set of bristles being disposed on each end of the handle. One set of bristles is configured as a conventional toothbrush and may, thus, have any one of a number of combinations of bristles and shapes for performing routine dental hygiene. The other end of the brush is unique in both the configuration of the supporting portion of the handle, the crescent configuration of the bristles and the articulation (pivoting action) of the crescent-shaped toothbrush relative to the handle. This portion of the handle is further modified (curved) to support the crescent-shaped bristle as to place them in opposing relationship to the inside surface of the user's teeth. This is achieved without any strain or unorthodox positioning of the brush by the user. Since the crescent-shaped toothbrush is able to articulate (pivot) relative to the handle, it is equally effective in cleansing all inside surfaces of the teeth, not simply the front teeth.
Inventors
- 👤 Michael J. Vieten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:12
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/026; A46B5/00; A46B5/0004; A46B5/0016; A46B7/00; A46B7/06; A46B9/04; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
150 words
An improved toothbrush for effective cleansing of both the inside and outside surfaces of an individual's teeth, comprising: a handle having a relatively straight section with a "C"-shaped section on one end thereof and a conventional toothbrush on the opposite end thereof, the "C"-shaped section being provided at its terminus with hinge-like means for pivoting engagement of a support for a crescent-shaped toothbrush; a crescent-shaped toothbrush having a bristle bearing suface and a support means, said support means having hinge-like means for pivoting attachment with the engagement means at the terminus of the "C"-shaped handle; and means for limiting the degree of pivoting rotation of the crescent-shaped toothbrush relative to its hinge-like attachment on the terminus of the "C"-shaped handle, whereby the crescent shaped toothbrush can articulate laterally on the terminus of the "C" shaped handle and yet be maintained in a cleansing relationship relative to the front lingual arch.
Claim 2
Dependent Claim
150 words
An improved toothbrush for effective cleansing of both the inside and outside surfaces of an individual's teeth, comprising: a handle having a relatively straight section with a "C"-shaped section on one end thereof and a conventional toothbrush on the opposite end thereof, the "C"-shaped section being provided at its terminus with hinge-like means for pivoting engagement of a support for a crescent-shaped toothbrush; a crescent-shaped toothbrush having a bristle bearing suface and a support means, said support means having hinge-like means for pivoting attachment with the engagement means at the terminus of the "C"-shaped handle; and means for limiting the degree of pivoting rotation of the crescent-shaped toothbrush relative to its hinge-like attachment on the terminus of the "C"-shaped handle, whereby the crescent shaped toothbrush can articulate laterally on the terminus of the "C" shaped handle and yet be maintained in a cleansing relationship relative to the front lingual arch.
Claim 3
Dependent Claim
35 words
The toothbrush of claim 1, wherein the crescent-shaped tooth brush comprises an essentially planar support and has longer bristles disposed toward the center of the support and shorter bristles toward the edge of the support.
Claim 4
Dependent Claim
21 words
The toothbrush of claim 1, wherein the crescent-shaped toothbrush comprises a crescent-shaped support and bristles of essentially uniform length disposed thereon.
Claim 5
Dependent Claim
30 words
The toothbrush of claim 1, wherein the section of the handle having the conventional toothbrush can be disengaged from that section of the "C"-shaped handle supportive of the crescent-shaped brush.
Claim 6
Dependent Claim
19 words
The toothbrush of claim 4, wherein the relatively straight section of the handle is adapted to a power handle.
Claim 7
Dependent Claim
19 words
The toothbrush of claim 4, wherein the section of the "C"-shaped handle is adapted to engage a power handle.
Claim 8
Dependent Claim
138 words
An improved toothbrush for effective cleansing of the inside surface of an individual's teeth, comprising: a handle having a relatively straight section and a "C"-shaped section on one end thereof, the "C"-shaped section being provided at its terminus with hinge-like means for pivoting engagement of a support for a crescent-shaped toothbrush; a crescent-shaped toothbrush having a bristle bearing surface and a support means, said support means having hinge-like means for pivoting attachment with the engagement means at the terminus of the "C"-shaped handle; and means for limiting the degree of pivoting rotation of the crescent-shaped toothbursh relative to its hinge-like attachment on the terminus of the "C"-shaped handle, whereby the crescent shaped toothbrush can articulate laterally on the terminus of the "C" shaped handle and yet be maintained in a cleaning relationship relative to the front lingual arch.
Claim 9
Dependent Claim
138 words
An improved toothbrush for effective cleansing of the inside surface of an individual's teeth, comprising: a handle having a relatively straight section and a "C"-shaped section on one end thereof, the "C"-shaped section being provided at its terminus with hinge-like means for pivoting engagement of a support for a crescent-shaped toothbrush; a crescent-shaped toothbrush having a bristle bearing surface and a support means, said support means having hinge-like means for pivoting attachment with the engagement means at the terminus of the "C"-shaped handle; and means for limiting the degree of pivoting rotation of the crescent-shaped toothbursh relative to its hinge-like attachment on the terminus of the "C"-shaped handle, whereby the crescent shaped toothbrush can articulate laterally on the terminus of the "C" shaped handle and yet be maintained in a cleaning relationship relative to the front lingual arch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |