Part handling device
Patent 4647268 Issued on March 3, 1987. Estimated Expiration Date: 
July 19, 2005. 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.
July 19, 2005. 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 3350609 3618066 3780884 3783344 Device for removing workpieces from a container Patent #: 4166649 InventorAssigneeApplicationNo. 06/757512 filed on 07/19/1985US Classes:414/416.01, Nongravity type294/65.5, MAGNET361/144, For lifting or holding414/618, Grab414/626, Suspended414/797.1By magnetic forceExaminersPrimary: Werner, Frank E.Attorney, Agent or FirmInternational ClassesB65G 47/92 (20060101)B66C 1/08 (20060101) B66C 1/00 (20060101) H01F 7/20 (20060101) H01F 7/08 (20060101) H01F 7/18 (20060101) Foreign Application Priority Data1976-11-16 DEAbstractA parts handling device is provided having a movable carrier on which is disposed a plurality of coil wound magnet poles. At least one of the poles is wound and with an A.C. source so that its current or voltage is subject to changes in response to induced magnetic flux caused by its proximity to a ferro-magnetic material. The changes in current or voltage so induced is sensed by a low impedance device or a resonant circuit device and an electric signal is produced which is employed to convert said poles to D.C. excitement control the operation of the parts handling device. | |
