US1342280A - Electrically-vibrated toothbrush - Google Patents

Electrically-vibrated toothbrush Download PDF

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Publication number
US1342280A
US1342280A US30929519A US1342280A US 1342280 A US1342280 A US 1342280A US 30929519 A US30929519 A US 30929519A US 1342280 A US1342280 A US 1342280A
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US
United States
Prior art keywords
casing
vibrated
electrically
handle
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Patrick J Fitzgerald
Original Assignee
Fitzgerald Mfg Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Fitzgerald Mfg Co Inc filed Critical Fitzgerald Mfg Co Inc
Priority to US30929519 priority Critical patent/US1342280A/en
Application granted granted Critical
Publication of US1342280A publication Critical patent/US1342280A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3481Vibrating brush body, e.g. by using eccentric weights
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3463Translation along the axis perpendicular to the plane defined by the bristle holder

Description

P. J. FITZGERALD.

ELECTRICALLY VIBRATED .TOOTHBRUSH.

APPLICATION FILED JULY 8.1919.

Patented June 1; 1920.

UNITED STATES,

PATENT OFFICE.

PATRICK J. FITZGERALD, CF TORRINGTON, CONNECTICUT, ASSIGNOR TO THE FITZGERALD MFG. CO., INC., OF TORRINGTON, CONNECTICUT, A CORPORA- Y TION OF CONNECTICUT.

ELECTRICALLY-VIBRATED TOOTHBRUSI-I.

Specification of Letters Patent.

Application filed July 8,-1919. Serial No. 309,295.

To all whom it may concern:

Be it known that I, PATRICK J. FITZGER- ALD, a citizen of the United States, residin This invention relates to electrically vibrated tooth brushes.

One of the objects of the present invention is to provide a light portable device for brushing the teeth and massaging the gums, for use by dentists and people troubled with diseases of the gums. K

A further object of the invention is to produce a compactly arranged hand tool of the character described and composed of a minimum number of parts.

Referring more particularly to the drawings- Figure 1 represents a section through the casing, the interior structure being shown in elevation.

Fig. 2 is a plan view'of the device.

The invention embraces a portable hand instrument for brushing the teeth and massaging the gums, and is particularly useful to dentists in the treatment of diseases of the gums where a massaging action is required to set up a circulation. structurally, the invention consists of a small casing inclosing electromagnets, detachably held therein by screws, and a leaf spring armature, the end of which projecting from the casing is provided with the tooth brush. Into the opposite end of the casing threads a handle for holding the device, and'this same threaded connection of the handle is utilized for positioning the spring leaf armature within the casing. In addition, the handle is bored centrally to provide an entrance for the electrical conduit connection to the electromagnets within the casing.

The invention, as illustrated in the drawings, comprises a casing 1 of any desired shape and material, to .the inner wall of which is' attached, in any suitable manner, the electromagnetic means for vibrating the tooth brush. For this purpose the casing the ends of the 'electromagnets 4, suitable blocks of insulation 5 being interposed therebetween.

In order to provide an electrical connection for said electromagnets, the iend 6 of the casing is provided with a threaded hole for the reception of a threaded stud 7 projecting from the inner end of the handle 8. The handle and stud are bored centrally, as at 9, to receive the electrical conductors 10, which pass into the casing 1 and are connected to the electromagnets 4. The opposite end of these conductors 10 have the usual connection to a source of alternating current. Obviously, by the use of a suitable interrupter, a direct current may be used.

The armature 11 is arranged in vibratable relation to the electromagnets 4, being fixed to a leaf spring 12, detachably connected by a screw 13, or otherwise, to an L-shaped insulation member 14, having a bore through zlvlhich threads the inner stud 7 on the hane 8. The tooth brush 15 is detachably secured in a holder 16 of any design and material. This holder projects through a slot 17 formed in the end of the casing opposite the handle, and is connected in any desired manner to the armature 11.

The casing opposite the electromagnets is provided with integral ears 18,'having thread holes 19', whereby the casing cover 20 is attached by means of screws 21.

In cleaning the teeth with the above device, the brush is given the usual reciprocating motion by means of the handle,'

while at the same time the electromagnets impart a vibrating motion at right angles to the plane of the brush producing a masmoved longitudinally during its vibrations.

Then, again, it will be noted that the armature at one end is attached to a spring, while at its other end means is provided for supporting the brush so that the brush is or'supporting point of the spring.

a considerable distance from the fulcrum The vibration given the armature by the electromagnets is, therefore, very much multiplied in the-brush.

Having thus described my invention, what I claimas new and desire to secure by Letters Patent, is: 1

1. An electrically vibrated tooth brush comprising a casing, a supporting handle therefor, an electromagnetic means arranged within said casing and includin a vibrated armature having a longitudina extension, a tooth brush mounted in said extension and arranged so that vibration is produced substantially endwise of the bristles.

2. An electrically vibrated tooth brush comprising a casing, a handle supporting the same, electromagnetic means arranged I within said caslng and including a vibrated 20 armature, said armature having a longitudinal extension provided with a tooth brush I holder, a tooth brush detachably mounted in said extension and having its longitudinal axis parallel with the longitudinal axis of the armature and parallel with the longitudinal axis of the handle, and with its bristles substantially transverse to the plane of said handle whereby endwise vibration of the bristles is produce In testimony whereof I aflix my signature in the presence of 'tWo Witnesses.

P. J. FITZGERALD- Witnesses:

BERTRAND C. PEoK, J. A. BECK.

US30929519 1919-07-08 1919-07-08 Electrically-vibrated toothbrush Expired - Lifetime US1342280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US30929519 US1342280A (en) 1919-07-08 1919-07-08 Electrically-vibrated toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30929519 US1342280A (en) 1919-07-08 1919-07-08 Electrically-vibrated toothbrush

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382519A (en) * 1966-07-13 1968-05-14 David C. Piggott Electrical brushing machine
US3535726A (en) * 1967-08-07 1970-10-27 Harold T Sawyer Sonic energy cleaning appliance
US5165131A (en) * 1989-12-29 1992-11-24 Staar Development Co., S.A. Teeth cleaning apparatus
US5378153A (en) * 1992-02-07 1995-01-03 Gemtech, Inc. High performance acoustical cleaning apparatus for teeth

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382519A (en) * 1966-07-13 1968-05-14 David C. Piggott Electrical brushing machine
US3535726A (en) * 1967-08-07 1970-10-27 Harold T Sawyer Sonic energy cleaning appliance
US5165131A (en) * 1989-12-29 1992-11-24 Staar Development Co., S.A. Teeth cleaning apparatus
US5378153A (en) * 1992-02-07 1995-01-03 Gemtech, Inc. High performance acoustical cleaning apparatus for teeth

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