Windshield wiper driving device
Patent 4494421 Issued on January 22, 1985. Estimated Expiration Date: 
March 22, 2002. 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 22, 2002. 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 2739681 3115599 3665772 3717048 3800624 Wiper device Patent #: 4400844 InventorAssigneeApplicationNo. 06/360772 filed on 03/22/1982US Classes:74/600, Adjustable15/250.17ElectricalExaminersPrimary: Dorner, Kenneth J.Attorney, Agent or FirmInternational ClassesB60S 1/18 (20060101)B60S 1/08 (20060101) B60S 1/06 (20060101) Foreign Application Priority Data1981-03-31 JPAbstractA link rod for driving wiper blades is coupled to and driven by a crank arm by means of an eccentric bush, so that an effective length of the link rod can be changed. A stopper portion is provided on the link rod for maintaining, during a normal operation, the eccentric bush in such a position where the effective length is smallest. A driving mechanism including three gears meshing with each other drives the eccentric bush when a wiping operation should be stopped so that the eccentric bush is rotated and placed at a position where the effective length of the link rod becomes largest, whereby the wiper blades are held in concealed positions during the blades are out of operation.Field of SearchWith parking means | |
