Laminated nut with tension indicator
February 13, 2027. 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 2581641 3921686 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 Method of manufacturing a laminated nut having cage with nested fingers Laminated nut with one way installation Laminated nut with anti-spin off structure and method of making nut Self-locking nut InventorsAssigneeApplicationNo. 11706819 filed on 02/13/2007US Classes:411/432MultipartExaminersPrimary: Reese, DavidAttorney, Agent or FirmInternational ClassesF16B 37/08F16B 39/12 AbstractA laminated nut with a visual indicator indicating if the nut is in a fully tightened state. The nut includes a plurality of conical disc springs enclosed in a cage. In one embodiment, a visual indicator extends axially from the upper surface of the outermost disc spring. In one embodiment, the visual indicator is retracted into the cage when the disc springs flatten as the nut is tightened. In one embodiment, the visual indicator aligns with a reference point on the cage when the nut is fully tightened. In one embodiment, the visual indicator is made more apparent by marking the visual indicator with a contrasting color.Field of SearchMultipartHaving elastically deformable portion for attaching member to substructure Nonmetallic nut, resiliently deformed during assembly Including means for retaining washer to fastener Nut-encompassing sleeve member engaged within through-passage or recess Resiliently retained Including movable threaded segments Resilient retainer Means to engage extends through aperture Nut assembled to substructure utilizing cooperating regions on both Nut assembled to substructure by plastically deformable region on nut Having washer Including sealing means Post-distorted thread pitch or diameter Internally threaded locking member (e.g., jam nut) Crimpable Including a region displaceable generally axially relative to another part of the element Having at least one region formed by a cut, slot, etc., across at least one sidewall of the element and extending generally radially into the element | |
