Suspension strut assembly
Patent 4415146 Issued on November 15, 1983. Estimated Expiration Date: 
August 26, 2002. 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.
August 26, 2002. 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 ReferencesInventorApplicationNo. 06/411619 filed on 08/26/1982US Classes:267/96, With resilient side or end, e.g., edge roll267/202, And helical coil spring267/259CompoundExaminersPrimary: Reger, Duane A.Attorney, Agent or FirmInternational ClassesB60G 15/00 (20060101)B60G 15/06 (20060101) B60G 15/04 (20060101) B60G 17/06 (20060101) F16F 1/40 (20060101) F16F 1/36 (20060101) F16F 7/00 (20060101) F16F 7/09 (20060101) AbstractAn improved suspension strut (10, 134, 178) for use in motor vehicle suspension systems is disclosed which integrates serially connected variable and fixed rate spring means (84, 104) with friction damping means (108). The use of variable rate spring means enables the suspension strut to be designed so as to provide a vehicle ride frequency which more closely approaches the desired optimum ride frequency for the particular vehicle over substantially the entire load range of the vehicle.Other References
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