US2012005848A1PendingUtilityA1

Electric U or H toothbrush

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Assignee: ZENG PINPriority: Jul 8, 2010Filed: Jul 8, 2010Published: Jan 12, 2012
Est. expiryJul 8, 2030(~4 yrs left)· nominal 20-yr term from priority
Inventors:Pin Zeng
A61C 17/3436A61C 17/222A61C 17/349A61C 17/3427A46B 9/045A46B 5/0054
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Claims

Abstract

The electric U or H toothbrush is for the daily use of cleaning teeth. Its toothbrush head is in U or H shape. Inside the U or H shape toothbrush head, there are rotators driven by an electric motor. Brushes extend from these rotators inward facing the top, front and back of teeth. During tooth brushing, the user turn on a switch, the electric U or H Toothbrush cleans all surfaces of the teeth at same time, which makes it very efficient. It minimizes the hard to reach areas on the back of teeth, which makes it more effective on tooth cleaning. Elastic materials are used to allow the toothbrush head deforming to fit with teeth of different sizes. Humps are designed inside the toothbrush head to control the deformation. A toothbrush handle is designed that it can rotate with respect to the toothbrush head for convenient use.

Claims

exact text as granted — not AI-modified
1 . The electric U or H toothbrush comprising:
 a U or H shape toothbrush head with a rotational toothbrush handle   the toothbrush handle is assembled onto the U or H shape toothbrush head through a toothbrush handle assembly, which allows the toothbrush handle to rotate with respect to the U or H shape toothbrush head,   the H shape toothbrush head comprises 2 U shape toothbrush heads, one U shape head facing upward and another one facing downward, the rotational toothbrush handle is assembled onto the H shape toothbrush head between the 2 U shape toothbrush heads,   
     
     
         2 . The electric U or H toothbrush of  claim 1 , wherein said inside a U shape toothbrush head, there are 3 rotators driven by an electric motor inside the toothbrush handle through a reciprocating mechanism. Brushes extend from these rotators inward facing the top, front and back of teeth. 
     
     
         3 . The electric U or H toothbrush of  claim 1 , wherein said the U or H shape toothbrush head or part of the U or H shape toothbrush head is made from elastic materials so that they can deform to fit the size of different teeth. 
     
     
         4 . The electric U or H toothbrush of  claim 1 , wherein said on the inner surface of the U or H shape toothbrush head, humps are designed to control the deformation of the U or H shape toothbrush head to fit the size of different teeth and keep the brushes touch the teeth at similar pressure despite the size difference of teeth. 
     
     
         5 . The electric U or H toothbrush of  claim 1 , wherein said the toothbrush handle can rotate with respect to the U or H shape toothbrush head for convenient use.

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