Relating to tapered connections
April 18, 2015. 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 3806272 Multiple-part holding arrangement, in particular for concentrically rotating tools Tool holder Tool coupling Mounting device having a conical shank Adapter for machine-tool spindle Shank for a tool Tool holder-spindle connection Tool holder for a machine tool Patent #: 5352073 InventorAssigneeApplicationNo. 423975 filed on 04/18/1995US Classes:279/103, Drill type409/234With cutter holderExaminersPrimary: Bishop, Steven C.Attorney, Agent or FirmForeign Patent References
International ClassB23B 031/117AbstractAn improved connection between a conical shank and conical receptacle is provided. A plurality of uniform resilient elements are mounted in a circumferential band arrangement adjacent the surface of the end of one of the shank or receptacle opposite to the end at which the shank is inserted into the receptacle. The uniform elements protrude from the surface by a dimension at least equal to the maximum clearance between the shank and receptacle. Therefore, when the shank is inserted into the receptacle, the resilient elements will contact the opposing surface to provide for accurate positioning of the shank. When the shank is fully inserted into the receptacle, reliable contact will be maintained along the entire length of the shank.Other References
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