Toothbrush with flow control valve

• US 4,615,635 A
• Filed: 06/10/1985
• Issued: 10/07/1986
• Est. Priority Date: 06/10/1985
• Status: Expired due to Fees

• Current Assignee: IABP Corporation
• Original Assignee: IABP Corporation
• Inventors: Kim, Kun H.
• Primary Examiner(s): Bratlie, Steven A.
• Application Number:
  US06/742,952
• Time in Patent Office: 484 Days
• Field of Search: 401/287, 401/286, 401/270, 401/278, 401/184, 401/186, 401/175, 401/134, 401/290, 401/269
• US Class Current: 401/270
• CPC Class Codes: A46B 11/0079 Arrangements for preventing undesired leakage or dispensing
• CPC Class Codes: A46B 17/04 Protective covers for the bristles
• 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 7/046 Threaded or screw connections for bristle carriers

Abstract

A toothbrush includes an elongated shank suitable for mounting onto a toothpaste container at a first end thereof and having a brush head at a second end. A plurality of bristles are carried by the brush head and extend outwardly from an upper surface thereof. A longitudinal passageway extends from the first end of the shank, through the shank, and exits in an opening within the bristles of the brush head. A slide mechanism is mounted in an elongated channel in the upper surface of the shank and is in slidable engagement therewith. The slide extends along the shank and into the brush head and has a first end disposed within the bristles which is formed in a plug complementary with the opening. The slide can be moved from a first position in which the plug completely covers the opening to a second position in which the opening is uncovered.

Claims

1. A toothbrush adapted to be mounted onto a toothpaste container comprising:

an elongated shank having means for mounting a toothpaste container to a first end thereof and having a brush head at a second end;

a plurality of bristles carried by said brush head and extending outwardly from an upper surface thereof;

a raised portion in the upper surface of said brush head, said raised portion having an arcuate outer surface;

a longitudinal passageway extending from said first end of said shank, through said shank, through said raised portion and exiting in an opening in the top of said raised portion within said bristles in said brush head; and

a slide mechanism at an upper surface of said shank which extends along said shank and into said brush head and means mounting said slide mechanism to said shank for slidable movement therewith, said slide mechanism having a first end disposed within said bristles and formed in a plug complementary with said opening, with said slide mechanism movable from a first position in which said plug completely covers said opening to a second position in which said opening is uncovered, with said plug having an arcuate outer surface which is complementary with said raised portion, whereby an unbroken arcuate outer surface is formed when the slide mechanism is moved to said first position with said plug covering said opening.

2. The toothbrush of claim 1 wherein said means mounting said slide mechanism to said shank is an elongated channel in the upper surface of said shank, with said slide mechanism in slidable engagement with said channel.

3. The toothbrush of claim 2 wherein said channel includes a pair of opposed and spaced sidewalls which angle downwardly away from each other.

4. The toothbrush of claim 2 wherein said channel includes a pair of opposed and spaced sidewalls having an arcuate configuration.

5. The toothbrush of claim 2 wherein said channel includes a pair of opposed and spaced sidewalls, each of said sidewalls having at least one elongated notch therein, with said slide mechanism having an elongated rib complementary with and engaging each of said notches in said sidewalls.

6. The toothbrush of claim 1 wherein the surface area defined by said raised portion is about one-third the area of the upper surface of said brush head.

7. The toothbrush of claim 1 wherein the height of said raised portion is about one-half the height of said bristles.

8. The toothbrush of claim 1 further including a plurality of bristles on said first end of said slide mechanism.

9. The toothbrush of claim 1 further including a thumb bead on a second end of said slide mechanism.

10. The toothbrush of claim 1 wherein said means for mounting a toothbrush container thereto is an internally threaded socket in said first end with said socket in fluid communication with said longitudinal passageway.

11. The toothbrush of claim 10 further including means within said socket for rupturing the top of an aerosol toothpaste container when mounted thereto.

12. The toothbrush of claim 11 wherein said rupturing means is a hook-shaped member pointed at one end and axially mounted to said socket.

13. The toothbrush of claim 11 wherein said rupturing means is a plurality of spaced blades mounted to said socket.

14. The toothbrush of claim 1 further including a tubular cover which fits over said brush head and shank and is removably engaged with said first end of said shank.

15. The toothbrush of claim 14 further including a tubular base which fits over a toothpaste container mounted to said shank and is removably engaged with said first end of said shank.

16. The toothbrush of claim 15 wherein said tubular base has at least an upper portion along its length thereof which is formed of a flexible material.