Ultrasonic toothbrush

• US 4,991,249 A
• Filed: 02/09/1989
• Issued: 02/12/1991
• Est. Priority Date: 02/09/1989
• Status: Expired due to Term

• Current Assignee: Leonard W. Suroff
• Original Assignee: Leonard W. Suroff
• Inventors: Suroff, Leonard W.
• Primary Examiner(s): Roberts, Edward L.
• Application Number:
  US07/308,798
• Time in Patent Office: 733 Days
• Field of Search: 15/22 R, 15/145, 15/176.2, 81/489, 433/118, 433/119, 433/127, 403/348, 403/349
• US Class Current: 15/22.2
• CPC Class Codes: A46B 15/0002 Arrangements for enhancing monitoring or controlling the brushing process
• CPC Class Codes: A46B 15/0028 with an acoustic means
• 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: A61C 17/20 using ultrasonics
• CPC Class Codes: A61C 17/3445 Translation along the axis of the toothbrush handle
• CPC Class Codes: A61C 17/3481 Vibrating brush body, e.g. by using eccentric weights
• CPC Class Codes: Y10T 403/7005 Lugged member, rotary engagement

Abstract

An ultrasonic toothbrush for use in personal dental hygiene care includes an exchangeable toothbrush member which is removably attached to an ultrasonic power member and may be readily removed therefrom with less than one revolution and inserted on to the ultrasonic power member in a like manner. Provision is made for locking the toothbrush to the power member and is arranged to transfer the ultrasonic energy from the power member to the toothbrush with minimum energy loss.

Claims

1. An ultrasonic toothbrush apparatus comprising, in combination:

A. an exchangeable toothbrush member including;

(i) an elongated body portion having an oral contact portion extending outwardly from one distal end of said body portion,

(ii) the other end of said body portion being hollow and provided with a centrally disposed opening terminating in a contact surface,

(iii) at least one inwardly extending protrusion being disposed at the circumference of said centrally disposed opening to function as a keying guide means,

(iv) a plurality of threads divided into at least two sections disposed within said hollow body portion between said contact surface and said opening, said threaded hollow body portion being adapted to receive a mating threaded portion; and

B. an ultrasonic power member means for supplying vibratory energy in the ultrasonic range including;

(i) an elongated housing having an ultrasonic power source for supplying vibratory energy in the ultrasonic range disposed within said housing, said power source being adapted to be connected to a source of electrical energy and having a vibratory output end longitudinally extending at one end of said housing,

(ii) said one end having a distal edge and a longitudinally outwardly extending portion provided with a plurality of mating threads divided into at least two sections, and

(iii) a longitudinal channel extending from said distal edge of said one end extending portion towards the other end of said extending portion terminating in a connecting relatively short channel disposed transverse to said longitudinal channel,

wherein, when said hollow body portion threads and said housing extending portion mating threads engage, and said hollow body inwardly extending protrusion slidably engages said housing elongated member channel when said toothbrush member is rotated with respect to said power member means housing sufficient for said housing internally extending protrusion to be seated into said relatively short transverse channel, said body portion contact surface is in intimate contact with said distal edge of said housing extending portion, thereby efficiently transferring said vibratory energy from said ultrasonic power source to said toothbrush body portion.

2. An ultrasonic toothbrush according to claim 1 further including locking means, said locking means being disposed on said housing, said toothbrush body portion being provided with an outwardly extending protrusion in alignment with said inwardly extending protrusion adapted to be engaged by said locking means when said body portion contact surface is in intimate contact with the distal edge of said housing extending portion.

3. An ultrasonic toothbrush according to claim 1 further including restraining means for preventing said vibratory output end from rotating when said toothbrush body portion is rotated.

4. An ultrasonic toothbrush according according to claim 3 wherein said restraining means is provided by a longitudinal outwardly extending portion provided on said vibratory output end which is adapted to cooperate with and slidably engage a longitudinal channel provided on said power member means housing.

5. An ultrasonic toothbrush according to claim 1 wherein said oral contact portion includes a plurality of bristles.

6. An ultrasonic toothbrush according to claim 1 wherein said oral contact portion includes a resilient material.

7. An ultrasonic toothbrush according to claim 1 wherein said plurality of threads are divided into three sections equally spaced about the circumference of said body portion opening.

8. An ultrasonic toothbrush according to claim 1 wherein said plurality of threads are divided into four sections equally spaced about the circumference of said body portion opening.

9. An ultrasonic toothbrush according to claim 1 further including resilient sealing means disposed between said housing and said ultrasonic power source for preventing moisture and water from entering said housing.

10. An ultrasonic toothbrush according to claim 9 wherein said sealing means comprises at least one O-ring member.

11. An ultrasonic toothbrush according to claim 1 wherein said ultrasonic power source comprises:

A. a relatively low voltage rechargeable battery means,

B. electrical circuit means for providing said vibratory ultrasonic energy connected to said battery means.

12. An ultrasonic toothbrush according to claim 1 wherein said ultrasonic power source comprises converter means for converting said source of electrical to a relatively low D.C. voltage for operating said ultrasonic power source.

13. A ultrasonic toothbrush apparatus according to claim 1 wherein said elongated member is a single unitary element.

14. An ultrasonic toothbrush apparatus comprising:

A. an exchangeable toothbrush member;

B. an ultrasonic power member means for supplying vibratory energy in the ultrasonic range having said toothbrush member removably affixed thereon; and

C. means for removing said exchangeable toothbrush member from said ultrasonic power member means with less than one complete revolution and a relatively small separating force therebetween, said means including at least two threaded circumferentially spaced sections having a plurality of threads in each said member and said member means.

15. An ultrasonic toothbrush according to claim 14 wherein said exchangeable toothbrush member includes;

(i) an elongated body portion having an oral contact portion extending outwardly from one distal end of said body portion,

(ii) the other end of said body portion being hollow and provided with a centrally disposed opening terminating in a contact surface,

(iii) at least one inwardly extending protrusion being disposed at the circumference of said centrally disposed opening to function as a keying guide means,

(iv) said plurality of threads having divided into at least two sections disposed within said hollow body portion between said contact surface and said opening, said threaded hollow body portion being adapted to receive a mating threaded portion; and

said ultrasonic power member means includes;

(i) an elongated hollow housing having an opening at one end,

(ii) an ultrasonic power source for supplying vibratory energy in the ultrasonic range disposed within said hollow housing, said power source being adapted to be connected to a source of electrical energy and having a vibratory output end longitudinally extending towards said housing opening,

(iii) a longitudinally outwardly extending portion having a distal edge and provided with a plurality of mating threads divided into at least two sections extending through said housing opening, and

(iv) a longitudinal channel extending from said distal edge of said extending portion towards the other end of said extending portion terminating in a connecting relatively short channel disposed transverse to said longitudinal channel,

wherein, when said hollow body portion threads and said extending portion mating threads engage, and said hollow body inwardly extending protrusion slidably engages said extending portion channel so that when said toothbrush member is rotated with respect to said power member means housing sufficient for said housing internally extending protrusion to be seated into said relatively short transverse channel, said body portion contact surface is in intimate contact with said distal edge of said extending portion, so that vibratory energy from said ultrasonic power source is efficiently transferred to said toothbrush body portion.

16. An ultrasonic toothbrush according to claim 15 further including locking means for retaining said toothbrush body portion upon said housing when said toothbrush body portion is receiving vibratory energy, said locking means being disposed on said housing, said toothbrush body portion being provided with an outwardly extending protrusion in alignment with said inwardly extending protrusion adapted to be engaged by said locking means when said body portion contact surface is in intimate contact with the distal edge of said extending portion.

17. An ultrasonic toothbrush according to claim 15 further including restraining means for preventing said vibratory output end from rotating when said toothbrush member body portion is receiving vibratory energy.

18. An ultrasonic toothbrush according according to claim 17 wherein said restraining means is provided by a longitudinal outwardly extending portion provided on said vibratory output end which is adapted to cooperate with and slidably engage a longitudinal channel provided on said power member means housing.

19. An ultrasonic toothbrush according to claim 15 wherein said plurality of threads are divided into three sections equally spaced about the circumference of said body portion opening.

20. An ultrasonic toothbrush according to claim 15 further including resilient sealing means disposed between said housing and said ultrasonic power source for preventing moisture and water from entering said housing opening.

21. An ultrasonic toothbrush according to claim 20 wherein said sealing means comprises at least one O-ring member.

22. An ultrasonic toothbrush apparatus according to claim 15 wherein said elongated member is a single unitary element.

23. A quick release ultrasonic connector for releasably connecting a member to a source of vibratory ultrasonic energy comprises:

(i) an elongated body portion having an element disposed on one distal end of said body portion,

(ii) the other end of said body portion being hollow and provided with a centrally disposed opening terminating in a contact surface,

(iii) at least one inwardly extending protrusion being disposed at the circumference of said centrally disposed opening to function as a keying guide means,

(iv) a plurality of threads divided into at least two sections disposed within said hollow body portion between said contact surface and said opening, said threaded hollow body portion being adapted to receive a mating threaded portion; and

said source of ultrasonic power energy includes;

(i) an elongated hollow housing having an ultrasonic power motor means for supplying vibratory energy in the ultrasonic range disposed within said hollow housing, said power source being adapted to be connected to a source of electrical energy and having a vibratory output end longitudinally extending at one end of said housing,

(ii) a longitudinally outwardly extending portion having a distal edge and provided with a plurality of mating threads divided into at least two sections at said one end, and

(iii) a longitudinal channel extending from said distal edge of said housing one end extending portion extends towards the other end of said extending portion terminating in a connecting relatively short channel disposed transverse to said longitudinal channel,

wherein, when said hollow body portion threads and said housing extending portion mating threads engage, and said hollow body inwardly extending protrusion slidably engages said housing elongated member channel so that when said element is rotated with respect to said power motor housing sufficient for said housing internally housing extending protrusion to be seated into said relatively short transverse channel said body portion contact surface is in intimate contact with said distal edge of said housing extending portion, so that vibratory energy from said ultrasonic power source is efficiently transferred to said element.

24. An ultrasonic toothbrush according to claim 23 further including locking means, said locking means being disposed on said housing, said element body portion being provided with an outwardly extending protrusion in alignment with said inwardly extending protrusion adapted to be engaged by said locking means when said body portion contact surface is in intimate contact with the distal edge of said extending portion.

25. An ultrasonic toothbrush apparatus comprising, in combination:

A. an exchangeable toothbrush member including;

(i) an elongated body portion having an oral contact portion extending outwardly from one distal end of said body portion,

(ii) the other end of said body portion provided with a centrally disposed connector portion terminating in a contact surface,

(iii) at least one protrusion being disposed at the circumference of said centrally disposed connector portion to function as a keying guide means,

(iv) a plurality of threads divided into at least two sections disposed on said connector portion between said contact surface and the distal edge of said body portion other end, said threaded connector portion being adapted to receive a mating connector threaded portion; and

B. an ultrasonic power member means for supplying vibratory energy in the ultrasonic range including;

(i) an elongated housing having an ultrasonic power source for supplying vibratory energy in the ultrasonic range disposed within said housing, said power source being adapted to be connected to a source of electrical energy and having a vibratory output end longitudinally extending towards one end of said housing,

(ii) a mating connector portion affixed on said vibratory output end, said mating connector portion having,

a. a longitudinally extending portion having a distal edge and provided with a plurality of threads divided into at least two sections, and

b. a longitudinal channel extending from said distal edge of said mating connector portion towards the other end of said mating connector portion terminating in a relatively short channel disposed transverse to said longitudinal channel,

said mating connector portion and said connector portion being adapted to cooperate with each other so that said connector portion threads and said mating connector portion threads engage and said connector portion protrusion slidably engages said mating connector channel so that when said toothbrush member is rotated with respect to said power member means housing sufficient for said connector portion protrusion to be seated into said relatively short transverse channel said connector portion contact surface is in intimate contact with said distal edge of said mating connector portion, wherein vibratory energy from said ultrasonic power source is efficiently transferred to said toothbrush body portion.

26. An ultrasonic toothbrush according to claim 25 further including locking means, said locking means being disposed on said mating connector portion, said connector portion being provided with an outwardly extending protrusion in alignment with said connector portion protrusion adapted to be engaged by said locking means when said connector portion contact surface is in intimate contact with the distal edge of said mating connector portion.

27. An ultrasonic toothbrush according to claim 25 wherein said toothbrush member further includes finger grip means for ease in rotating said toothbrush body portion with respect to said power member means housing.

28. An ultrasonic toothbrush according to claim 25 further including restraining means for preventing said mating connector portion vibratory output end from rotating when said connector portion is rotated.

29. An ultrasonic toothbrush according according to claim 28 wherein said restraining means is provided by a longitudinal outwardly extending portion provided on said vibratory output end which is adapted to cooperate with and slidably engage a longitudinal channel provided on said power member means housing.

30. An ultrasonic toothbrush according to claim 25 wherein said connector portion is female and said mating connector portion is male.

31. An ultrasonic toothbrush according to claim 25 wherein said plurality of threads are divided into three sections equally spaced about the circumference of said body portion opening.

32. An ultrasonic toothbrush according to claim 25 wherein said plurality of threads are divided into four sections equally spaced about the circumference of said body portion opening.

33. An ultrasonic toothbrush according to claim 25 further including resilient sealing means disposed between said mating connector portion and said housing for preventing moisture and water from entering said housing opening.

34. An ultrasonic toothbrush according to claim 33 wherein said sealing means comprises at least one O-ring member.

35. An ultrasonic toothbrush apparatus comprising, in combination:

A. an exchangeable toothbrush member including;

(i) an elongated body portion having an oral contact portion extending outwardly from one distal end of said body portion,

(ii) the other end of said body portion being provided with a centrally disposed opening terminating in a contact surface,

(iii) a plurality of threads divided into at least two sections disposed on said body portion proximate said contact surface, said threaded body portion being adapted to receive a mating threaded portion; and

B. an ultrasonic power member means for supplying vibratory energy in the ultrasonic range including;

(i) an elongated housing having an ultrasonic power source for supplying vibratory energy in the ultrasonic range disposed within said housing, said power source being adapted to be connected to a source of electrical energy and having a vibratory output at one end of said housing,

(ii) a longitudinally outwardly extending portion having a distal edge and a plurality of mating threads divided into at least two sections provided at said one end,

wherein, when said body threads and said housing extending portion threads engage and said toothbrush member is rotated with respect to said power member means housing sufficient for said body portion contact surface to be in intimate contact with said distal edge of said housing extending portion, vibratory energy from said ultrasonic power source is efficiently transferred to said toothbrush body portion.

36. An ultrasonic toothbrush according to claim 35 further including locking means, said locking means being disposed on said housing, said toothbrush body portion being provided with an outwardly extending protrusion in alignment with said inwardly extending protrusion adapted to be engaged by said locking means when said body portion contact surface is in intimate contact with the distal edge of said housing extending portion.

37. An ultrasonic toothbrush according to claim 35 further including restraining means for preventing said vibratory output end from rotating when said toothbrush body portion is rotated.

38. A quick release ultrasonic connector for releasably connecting a member to a source of vibratory ultrasonic energy comprises:

(i) an elongated body portion having an element disposed on one end thereof,

(ii) the other end of said body portion terminating in a centrally disposed contact surface,

(iii) a plurality of threads divided into at least two sections disposed upon said body portion between said contact surface and said one end, said threaded body portion being adapted to receive a mating threaded portion; and

said source of ultrasonic vibratory energy includes;

(i) an elongated housing having an ultrasonic power motor means for supplying vibratory energy in the ultrasonic range disposed within said housing, said power source being adapted to be connected to a source of electrical energy and a vibratory output at one end of said housing,

(ii) a longitudinally outwardly extending portion having a distal edge and a plurality of mating threads divided into at least two sections at said one end,

wherein, when said body portion threads and said housing extending portion mating threads engage, and said element is rotated with respect to said power motor housing sufficient for said body portion contact surface to be in intimate contact with said distal edge of said housing extending portion vibratory energy from said ultrasonic power source is efficiently transferred to said element.

39. An ultrasonic toothbrush according to claim 38 further including locking means, said locking means being disposed on said housing, said element body portion being provided with an outwardly extending protrusion in alignment with said inwardly extending protrusion adapted to be engaged by said locking means when said body portion contact surface is in intimate contact with the distal edge of said extending portion.