Device capable of suction-adhering to a wall surface and moving therealong
Patent 4934475 Issued on June 19, 1990. Estimated Expiration Date: 
March 21, 2008. 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.
March 21, 2008. 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 2766557 Device capable of suction-adhering to a wall surface and moving therealong Device capable of adhering to a wall surface by suction and treating it Patent #: 4688289 InventorApplicationNo. 171123 filed on 03/21/1988US Classes:180/164, WITH POWERED MEANS FOR CREATING FLUID FORCE TO ATTRACT VEHICLE TO SURFACE OF TRAVEL15/52, Rotary wiper15/98, Floor and wall cleaner114/222, Hull cleaning451/92, Mobile machine451/354Wall surfacing machineExaminersPrimary: Rose, Robert A.Attorney, Agent or FirmForeign Patent References
International ClassesB24C 003/06B24B 023/00 Foreign Application Priority Data1987-04-04 JPAbstractA device comprising a main body and vibration generating means mounted on the main body. The vibration generating means imparts a force in a direction away from a wall surface and a force in a predetermined direction along the wall surface to the main body of the device. As a result, the main body is moved along the wall surface by the above force in the predetermined direction along the wall surface. | |
