Leaf spring
Patent 4546958 Issued on October 15, 1985. Estimated Expiration Date: 
May 15, 2004. 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 15, 2004. 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 129297 2533511 2820625 3452974 3495816 3705718 Leaf spring Patent #: 3945625 InventorsAssigneeApplicationNo. 06/610188 filed on 05/15/1984US Classes:267/47, Structure267/148FIBROUSExaminersPrimary: Stoner, Bruce H. Jr.Assistant: Oberleitner, Robert J. Attorney, Agent or FirmInternational ClassesB60G 11/02 (20060101)F16F 1/368 (20060101) F16F 1/36 (20060101) Foreign Application Priority Data1980-12-22 JPAbstractIn a FRP leaf spring consisting of a main body and a rib, the main body has a taper portion so tapered that the thickness of the main body varies continuously along the longitudinal direction thereof, and the rib is projected integrally from the main body in the direction of the thickness thereof, extending along the longitudinal direction of the main body, so that the total sectional area of the main body and the rib, as well as the width of the main body, is kept substantially fixed in every position along the longitudinal direction to ensure uniform stress distribution. | |
