US4486914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth brush for cleaning and care of the teeth
Assignee: Individual
•
Filing: 1983-03-08
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Granted: 1984-12-11
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Expires: 2003-03-08
Abstract
Abstract A tooth brush is of generally tongs-like or horseshoe-like form with two arms that may be pressed elastically together for pressing brush members at their ends against the inner and outer faces of the teeth. The brush members are placed at an angle to the arms. In order to make possible full and complete brushing and care of the teeth, and more specially for the spaces between the teeth to be cleaned out and for the edges of the gums to be brushed and massaged, the brush members are each formed by a round brush with bristles running out from a support pin or core. The end of each support pin furthest from said arm has bristles directed towards the gums and gum edges.
Inventors
- 👤 Staffan Plant/e/ n
- 👤 Torbj/o/ rn Askeroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:30
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/0004; A46B5/0016; A46B5/0012; A46B5/06; A46B7/00; A46B7/04; A46B9/00; A46B9/02; A46B9/04; A46B9/045; A46B2200/00; A46B2200/10; A46B2200/1066; A46B2200/1073
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
313 words
A tooth brush for effecting a cleaning of human teeth and a massaging of the gums, comprising: a handle having a pair of arms extending coextensively with respect to each other and each thereof lying in a first common plane, mutually adjacent ends at one end on each arm terminating in an elongate brush member supporting element extending outwardly of and on the same side of said first common plane; means for facilitating a movement of said mutually adjacent ends toward and away from each other; a pair of elongate brush members and coupling means for effecting a fixed coupling of each of said brush members to said brush member supporting elements, said brush members each extending outwardly of and on the same side of said first common plane, said brush members each having an elongate base with a first side oriented on said handle to face each other and a second side facing away from said first common plane, said first and second sides having a plurality of bristles emanating therefrom, said bristles emanating from said first sides each terminating in a first convex arcuate array when viewed in a direction along the longitudinal axis of said elongate base, axes of each said first convex arcuate array on each said base being oriented transversely of said first common plane and parallel to a second common plane defined by the longitudinal axes of said bases and which extends transversely of said first common plane, said bristles emanating from each said second sides terminating in a second convex arcuate array, the axes of which extend parallel to said second common plane, said bristles emanating from both said first and second sides terminating in a third convex arcuate array when viewed in a direction perpendicular to said second common plane, axes of said third convex arcuate array being oriented perpendicular to said second common plane.
Claim 2
Dependent Claim
313 words
A tooth brush for effecting a cleaning of human teeth and a massaging of the gums, comprising: a handle having a pair of arms extending coextensively with respect to each other and each thereof lying in a first common plane, mutually adjacent ends at one end on each arm terminating in an elongate brush member supporting element extending outwardly of and on the same side of said first common plane; means for facilitating a movement of said mutually adjacent ends toward and away from each other; a pair of elongate brush members and coupling means for effecting a fixed coupling of each of said brush members to said brush member supporting elements, said brush members each extending outwardly of and on the same side of said first common plane, said brush members each having an elongate base with a first side oriented on said handle to face each other and a second side facing away from said first common plane, said first and second sides having a plurality of bristles emanating therefrom, said bristles emanating from said first sides each terminating in a first convex arcuate array when viewed in a direction along the longitudinal axis of said elongate base, axes of each said first convex arcuate array on each said base being oriented transversely of said first common plane and parallel to a second common plane defined by the longitudinal axes of said bases and which extends transversely of said first common plane, said bristles emanating from each said second sides terminating in a second convex arcuate array, the axes of which extend parallel to said second common plane, said bristles emanating from both said first and second sides terminating in a third convex arcuate array when viewed in a direction perpendicular to said second common plane, axes of said third convex arcuate array being oriented perpendicular to said second common plane.
Claim 3
Dependent Claim
27 words
The tooth brush according to claim 1, wherein the longitudinal axis of each said brush member extends in a plane generally parallel to said second common plane.
Claim 4
Dependent Claim
24 words
The tooth brush according to claim 2, wherein the longitudinal axes of said brush members are oriented at an acute angle to each other.
Claim 5
Dependent Claim
30 words
The tooth brush according to claim 3, wherein said acute angle is in the range of 20° to 30° when viewed in a direction perpendicular to said second common plane.
Claim 6
Dependent Claim
24 words
The tooth brush according to claim 1, wherein said first and second sides are convexly arced about axes oriented in said second common plane.
Claim 7
Dependent Claim
47 words
The tooth brush according to claim 1, wherein a third side on each said brush member opposite said first side is free of bristles and is inclined to said first common plane so that said third sides converge toward the free ends of each said brush member.
Claim 8
Dependent Claim
35 words
The tooth brush according to claim 1, wherein said first arcuate array of bristles extends through an angle in the range of 120° to 140° when viewed along the longitudinal axis of said elongate base.
Claim 9
Dependent Claim
34 words
The tooth brush according to claim 1, wherein said third convex arcuate array of bristles extends through an angle of 110° to 180° when viewed in a direction perpendicular to said second common plane.
Claim 10
Dependent Claim
25 words
The tooth brush according to claim 1, wherein each said bristle is integrally formed on said base and becomes thinner toward the outer ends thereof.
Claim 11
Dependent Claim
42 words
The tooth brush according to claim 1, wherein said coupling means includes an elongate peg on one of said arm and said base and a socket on the other of said arm and said base, said peg being received in said socket.
Claim 12
Dependent Claim
28 words
The tooth brush according to claim 1, wherein said peg and socket are correspondingly irregularly shaped to assure a proper orientation of said brush members on said handle.
Claim 13
Dependent Claim
64 words
The tooth brush according to claim 1, wherein said handle is U-shaped and integrally formed from a single piece of material, said arms thereof being resiliently flexible toward and away from each other, the portion of said handle adjoining said arms having an enlarged and arcuate exterior, the radius of said arcuate exterior being greater than a normal and unflexed position of said arms.
Claim 14
Dependent Claim
19 words
The tooth brush according to claim 1, wherein said second common plans is perpendicular to said first common plane.
Claim 15
Dependent Claim
45 words
The tooth brush according to claim 1, wherein said base includes additional sides, and wherein said first arcuate array includes bristles emanating from said additional sides and through an angle of 360° when viewed in a direction along the longitudinal axis of said elongate base.
Claim 16
Dependent Claim
32 words
The tooth brush according to claim 1, wherein said handle is U-shaped, said arms being pivotally secured to each other for movement about an axis extending parallel to said second common plane.
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |