Apparatus for dust removal from surfaces
Patent 6076216 Issued on June 20, 2000. Estimated Expiration Date: 
August 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3536528 3872361 Thin wire type of electric field curtain system Method and apparatus for separating particulate materials Electrostatic removal of contaminants High frequency vibratory enhanced cleaning in electrostatic imaging devices Apparatus and method for cleaning photomasks Flue gas treating process and system Patent #: 5840263 InventorAssigneeApplicationNo. 905512 filed on 08/04/1997US Classes:15/1.51, ELECTROSTATIC CLEANING134/1Including application of electrical radiant or wave energy to workExaminersPrimary: Warden, Robert J.Assistant: Olsen, Kaj K. Attorney, Agent or FirmInternational ClassA47L 013/40AbstractThe present invention relates to a method and apparatus for cleaning surfaces of dust by the use of an alternating electrical field with a low power consumption. The amplitude of the electrical field is between 1,000 and 30,000 V/cm and its frequency is from 10 to 1000 Hz.Field of SearchELECTROSTATIC CLEANINGHand implement Including application of electrical radiant or wave energy to work ELECTROSTATIC Attracting and repelling Attracting Repelling Rod-type structure Use of forces of electric charge or field ELECTRIC CHARGE GENERATING OR CONDUCTING MEANS (E.G., CHARGING OF GASES) ELECTRIC CHARGING OF OBJECTS OR MATERIALS | |
