Adjustable damping force type shock absorber
Patent 4729459 Issued on March 8, 1988. Estimated Expiration Date: 
September 30, 2005. 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.
September 30, 2005. 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 2443471 3321210 3501099 Feedback control type shock absorbing suspension system Piezoelectric actuator, and valve apparatus having actuator Variable-damping-force shock absorber Vehicle braking control apparatus Patent #: 4629039 InventorsAssigneeApplicationNo. 06/781638 filed on 09/30/1985US Classes:188/266.5, Of the pulsating or reciprocating type188/1.11E, Electrical188/1.11R, WITH CONDITION INDICATOR188/266.7, Piezoelectric188/285, Having a fluid flow passage adjusted manually (e.g., threaded plug, threaded rod, gearing)280/5.513, Longitudinal vehicle disposition (e.g., antidive, antipitch, antisquat)310/317, Input circuit for mechanical output from piezoelectric element310/325, Sandwich or Langevin type310/328With mechanical energy coupling meansExaminersPrimary: Halvosa, George E. A.Assistant: Graham, Matthew C. Attorney, Agent or FirmInternational ClassB60G 17/015 (20060101)Foreign Application Priority Data1984-10-01 JPAbstractAn adjustable damping force type shock absorber having a function to detect a damping force generated thereon and a function to adjust the damping force thereof. | |
