Portable ultrasonic cleaning machine

Abstract

A portable ultrasonic cleaning machine comprises a main body, held in a hand of a user; an ultrasonic wave generator, placed in the main body, generating ultrasonic waves for cleaning cloth or articles of clothing; a control circuit, connected with an electric power supply, for controlling operation of the ultrasonic wave generator; an opening in the main body, located next to the ultrasonic wave generator, allowing ultrasonic waves generated thereby to pass through; a holding plate which covers one side of the main body that inludes the opening, leaving a gap for inserting a piece of cloth or an article of clothing to be placed close to the opening, wherein a section of cloth or articles of clothing to be cleaned is placed close to the opening and cleaned by exposure to ultrasonic waves passing through the opening.

1 . A portable ultrasonic cleaning machine for cleaning cloth or articles of clothing while being hand-held, comprising: 
 a main body, held in a hand of a user;    an ultrasonic wave generator, placed in said main body, generating ultrasonic waves for cleaning cloth or articles of clothing;    a control circuit, connected with an electric power supply, for controlling operation of said ultrasonic wave generator; and    an opening in said main body, located next to said ultrasonic wave generator, allowing ultrasonic waves generated thereby to pass through;    wherein a section of cloth or articles of clothing to be cleaned is placed close to said opening and cleaned by exposure to ultrasonic waves passing through said opening.    
   
   
       2 . The portable ultrasonic cleaning machine according to  claim 1 , further comprising a holding plate which covers one side of said main body that inludes said opening, leaving a gap for inserting a piece of cloth or an article of clothing to be placed close to said opening.  
   
   
       3 . The portable ultrasonic cleaning machine according to  claim 2 , wherein a guiding device is mounted on said holding plate on a side that faces said main body, guiding a piece of cloth or an article of clothing through said gap.  
   
   
       4 . The portable ultrasonic cleaning machine according to  claim 3 , wherein said guiding device comprises at least one roll, having a surface guiding a piece of cloth or an article of clothing through said gap.  
   
   
       5 . The portable ultrasonic cleaning machine according to  claim 3 , wherein said guiding device comprises at least one roll, having a surface guiding a piece of cloth or an article of clothing through said gap.  
   
   
       6 . The portable ultrasonic cleaning machine according to  claim 2 , wherein said holding plate opposite to said opening, has a sound absorbing element for decreased reflection of incident ultrasonic waves.  
   
   
       7 . The portable ultrasonic cleaning machine according to  claim 6 , wherein said sound absorbing element is made of polymolecular material absorbing incident ultrasonic waves.  
   
   
       8 . The portable ultrasonic cleaning machine according to  claim 6 , wherein said sound absorbing element has a surface in a shape that incident ultrasonic waves are diffused.