Laminated nut with anti-spin off structure and method of making nut
Patent 5049017 Issued on September 17, 1991. Estimated Expiration Date: 
May 21, 2010. 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.
May 21, 2010. 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 375294 2382748 3233262 Free spinning laminated nut with automatic lock Nut and washer single assembly structure Nut and stud assembly Laminated nut having cage with nested fingers and method of manufacture Patent #: 4940377 InventorAssigneeApplicationNo. 526054 filed on 05/21/1990US Classes:411/432, Multipart411/222Internally threaded locking member (e.g., jam nut)ExaminersPrimary: Lindsey, Rodney M.Attorney, Agent or FirmForeign Patent References
International ClassF16B 037/08AbstractA laminated nut structure and method of making same with the nut structure having a plurality of coned disc washers having a common threaded bore with the disc washers being held in a cage having fingers gripping the disc washers with at least one of the disc washers being of a deformable material and the others being of a hard material with the threads in the portion of the bore defined by the one disc washer being deformed to provide a prevailing torque characteristic with the thread of an associated bolt portion and with at least one of the cage fingers having an opening in line with the one of the disc washers whereby it can be engaged by a tool to deform the thread at that location.Field of SearchMultipartINTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC. Internally threaded locking member (e.g., jam nut) Comprising a thread lock Member preassembled with substructure at through-passage or recess for holding single bolt or nut in coaxial relation therewith Distorted nut Predistorted thread pitch or diameter Axial distortion Segmented internally threaded element Discrete segments carried within a housing Including means associated with at least one of the nuts for restricting rotation therebetween Received in axially extending passages or recesses | |
