Toothbrush

• US 4,776,054 A
• Filed: 03/04/1987
• Issued: 10/11/1988
• Est. Priority Date: 03/04/1987
• Status: Expired due to Fees

• Current Assignee: Samuel Rauch
• Original Assignee: Samuel Rauch
• Inventors: Rauch, Samuel
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/021,713
• Time in Patent Office: 587 Days
• Field of Search: 15/167.1, 15/167.2, 15/110, D 4/104, 128/62 A
• US Class Current: 15/167.1
• CPC Class Codes: A46B 2200/1066 Toothbrush for cleaning the teeth or dentures A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04
• CPC Class Codes: A46B 9/04 Arranged like in or for toothbrushes

Abstract

A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, has a plurality of spaced longitudinally extending rows of bristles in center and outer rows extending from the brushhead. The bristles of the center rows extend perpendicularly to the brushhead and the bristles of each of the outer rows are inclined in different directions relative to the bristles of the center rows. The bristles of each of the outer rows are inclined in one direction from approximately the center of the row to one end thereof and in the opposite direction from approximately the center of the row to the opposite end thereof. Each of the one and opposite directions is away from a normal line at approximately the center of the row. The bristles of the outer rows may also be inclined away from the planes of the bristles of the center rows.

Claims

1. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, said bristles of each of said outer rows being inclined in one direction from approximately the center of the row to one end thereof and in the opposite direction from approximately said center of said row to the opposite end thereof, each of said one and opposite directions being away from a normal line at approximately said center of said row.

2. A toothbrush as claimed in claim 1, wherein said rows of bristles are in substantially parallel planes.

3. A toothbrush as claimed in claim 1, wherein said center rows of bristles are in planes substantially perpendicular to said brushhead and said outer rows of bristles are in planes inclined in opposite directions from the planes of said center rows.

4. A toothbrush as claimed in claim 1, wherein the great majority of the bristles of said outer rows extend a greater distance from said brushhead than the bristles of said center rows.

5. A toothbrush as claimed in claim 1, wherein the bristles of said outer rows extend the same distance from said brushhead as the bristles of said center rows.

6. A toothbrush as claimed in claim 1, wherein said brushhead has spaced opposite top and bottom surfaces, a pair of spaced opposite end edges and a pair of spaced substantially parallel slits through said brushhead from said top to bottom surfaces and spaced from one of said end edges, said slits form a center area between them for said center rows of bristles and outer areas on the opposite sides of said slits from said center area for said outer rows of bristles.

7. A toothbrush as claimed in claim 1, wherein the angle of inclination in said one direction is substantially 10°

to 20°

from said normal line in said one direction and the angle of inclination in said opposite direction is substantially 10°

to 20°

from said normal line in said opposite direction.

8. A toothbrush as claimed in claim 3, wherein said planes of said outer rows are inclined at angles of approximately 5°

to 10°

with said planes of said center rows.

12. A toothbrush as claimed in claim 4, wherein the free ends of the bristles of each of said outer rows form a substantially linear configuration relative to said brushhead and parallel to said brushhead.

13. A toothbrush as claimed in claim 4, wherein the maximum length of the bristles of said outer rows from said brushhead is approximately 33% greater than the length of the bristles of said center rows from said brushhead.

9. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, the great majority of the bristles of said outer rows extending a greater distance from said brushhead than the bristles of said center rows, the free ends of the bristles of each of said outer rows forming a substantially flat inverted V configuration relative to said brushhead.

10. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, the great majority of the bristles of said outer rows extending a greater distance from said brushhead than the bristles of said center rows, the free ends of the bristles of each of said outer rows forming a substantially arcuate configuration relative to said brushhead.

11. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, the great majority of the bristles of said outer rows extending a greater distance from said brushhead than the bristles of said center rows, the free ends of the bristles of each of said outer rows forming an irregular geometric configuration relative to said brushhead.

14. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, said brushhead having spaced opposite top and bottom surfaces, a pair of spaced opposite end edges and a pair of spaced substantially parallel slits through said brushhead from said top to bottom surfaces and spaced from one of said end edges, said slits forming a center area between them for said center rows of bristles and outer areas on the opposite sides of said slits from said center area for said outer rows of bristles, said center area being substantially planar and each of said outer areas being of substantially flat inverted V configuration, the bristles of each of said outer rows being of substantially equal length and extending from the top surfaces of said outer areas.

15. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, said brushhead having spaced opposite top and bottom surfaces, a pair of spaced opposite end edges and a pair of spaced substantially parallel slits through said brushhead from said top to bottom surfaces and spaced from one of said end edges, said slits forming a center area between them for said center rows of bristles and outer areas on the opposite sides of said slits from said center area for said outer rows of bristles, said center area being substantially planar and each of said outer areas being of substantially arcuate configuration, the bristles of each of said outer rows being of substantially equal length and extending from the top surfaces of said outer areas.

16. A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, said toothbrush having a substantially longitudinally aligned handle and brushhead at one end of said handle, said toothbrush comprising

a plurality of spaced substantially longitudinally extending rows of bristles in substantially center and outer rows extending from said brushhead, the bristles of said center rows extending substantially perpendicularly to said brushhead and the bristles of each of said outer rows being inclined in different directions relative to the bristles of said center rows, said brushhead having spaced opposite top and bottom surfaces, a pair of spaced opposite end edges and a pair of spaced substantially parallel slits through said brushhead from said top to bottom surfaces and spaced from one of said end edges, said slits forming a center area between them for said center rows of bristles and outer areas on the opposite sides of said slits from said center area for said outer rows of bristles, said center area being substantially planar and each of said outer areas being of the same irregular geometric configuration, the bristles of each of said outer rows being of substantially equal length and extending from the top surfaces of said outer areas.