Cleaning and liquid contact with solids – Apparatus – Electrically controlled
Patent
1994-01-24
1995-06-06
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
Electrically controlled
134 951, 1341042, 134186, B08B 312
Patent
active
054213533
ABSTRACT:
A method and apparatus for cleaning an object in a cleaning solution and then rinsing the object in a rinse solution. The apparatus includes a cleaning tank with an inlet valve and an outlet valve. The object to be cleaned and the cleaning solution are placed into the cleaning tank. An ultrasonic transducer generates ultrasonic vibrations in the cleaning solution. A controller maintains the object immersed in the cleaning solution for a first period of time and then generates ultrasonic vibrations for a second period of time. The outlet valve is then opened to drain the cleaning solution from the tank. The inlet valve is subsequently opened to fill the cleaning tank with rinse solution. The apparatus is particularly suited for cleaning dentures with the rinse solution and the cleaning solution being selected to properly hydrate acrylic denture material and soft reline materials.
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