Characterization of motion of dual motor oral hygiene device
First Claim
1. A power oral hygiene device comprising:
- a main body having a handle portion and a head portion;
an oral hygiene attachment connected to the head portion;
a first vibratory means positioned in the handle portion operating at a first frequency and a first amplitude;
a second vibratory means positioned in the head portion operating at a second frequency and a second amplitude; and
a power means for providing energy to the first vibratory means and the second vibratory means;
wherein the first frequency is greater than the second frequency;
the second amplitude is greater than the first amplitude; and
the first vibratory means and the second vibratory means operate in concert to impart an orbital motion with random or quasi-random variances to the head portion.
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Accused Products
Abstract
An oral hygiene device is disclosed having at least two motors to simultaneously vibrate and impart motion upon the head portion of the oral hygiene device, most beneficially at the tip. A first motor is positioned in the handle portion of the device to impart a first frequency of movement to the tip. A second motor is located in a head portion, generally in a shaft of or an oral hygiene attachment to the device, to impart at least a second frequency of movement onto the tip. When both the first and second motors are activated, the resulting movement of the tip of the device may include complex, substantially random movements, depending in part on the frequencies at which the motors are operating.
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Citations
32 Claims
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1. A power oral hygiene device comprising:
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a main body having a handle portion and a head portion;
an oral hygiene attachment connected to the head portion;
a first vibratory means positioned in the handle portion operating at a first frequency and a first amplitude;
a second vibratory means positioned in the head portion operating at a second frequency and a second amplitude; and
a power means for providing energy to the first vibratory means and the second vibratory means;
whereinthe first frequency is greater than the second frequency;
the second amplitude is greater than the first amplitude; and
the first vibratory means and the second vibratory means operate in concert to impart an orbital motion with random or quasi-random variances to the head portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power toothbrush comprising:
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a main body having a handle portion and a head portion;
the head portion further comprising a shaft portion and a brush head portion operably attached to the shaft portion;
the brush head portion further having bristles;
a first vibratory motor operating at a first frequency and a first amplitude positioned in the handle portion;
a second vibratory motor operating at a second frequency and a second amplitude positioned in the head portion; and
a power source for providing energy to the first motor and the second motor;
whereinthe first frequency is greater than the second frequency;
the second amplitude is greater than the first amplitude; and
the first vibratory motor and the second vibratory motor operate in combination to impart an orbital motion with random or quasi-random variances to the head portion. - View Dependent Claims (12, 13, 14, 15)
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16. A power oral hygiene device comprising:
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a handle portion for grasping by a user;
an oral hygiene portion attached to the handle portion at a pivot point; and
at least one vibratory means;
whereinthe at least one vibratory means imparts an orbital motion to the oral hygiene portion, wherein a distal end of the oral hygiene portion orbits around an axis extending distally from the handle portion at the pivot point, and the at least one vibratory means comprises at least a first vibratory means and a second vibratory means, wherein the first vibratory means is positioned within the handle portion and the second vibratory means is positioned within the oral hygiene portion. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A power oral hygiene device comprising:
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a handle portion for grasping by a user;
an oral hygiene attachment;
at least one vibratory means; and
a frame that houses the at least one vibratory means, wherein the frame is positioned internal to and spaced apart from the handle portion and is connected to the oral hygiene attachment, wherein the frame imparts vibratory energy generated by the at least one vibratory means to the oral hygiene attachment;
whereinthe at least one vibratory means comprises a first motor housed within a portion of the frame within the handle portion and a second motor housed within the shaft. - View Dependent Claims (30, 31, 32)
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Specification