Shock absorber
Patent 4437548 Issued on March 20, 1984. Estimated Expiration Date: 
June 16, 2003. 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.
June 16, 2003. 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 2778627 2847074 3599713 3774895 3834581 Kinetic energy absorbing value assembly Metering shock absorber with manual adjustment Crash load attenuating valve for an aircraft landing gear shock strut Patent #: 4126212 InventorAssigneeApplicationNo. 06/503650 filed on 06/16/1983US Classes:188/289, Having varying area of metering rod extending through orifice in thrust member137/68.11, Destructible element138/45, Variable restriction188/280, Relative speed of thrust member or fluid flow188/314, With reservoir for fluid188/317, Via fixed or variable orifice in piston267/127, Trans-piston passage267/136, RESILIENT SHOCK OR VIBRATION ABSORBER267/217, Fluid retarder267/64.26, Having telescoping cylinders293/134Fluid shock absorber typeExaminersPrimary: Halvosa, George E. A.International ClassesF16F 9/342 (20060101)F16F 9/34 (20060101) F16F 9/48 (20060101) B60R 19/32 (20060101) B60R 19/24 (20060101) Foreign Application Priority Data1980-03-12 JPAbstractA shock absorber is disclosed having an outer cylinder closed at one end thereof, a hollow inner cylinder closed at one end and opened at an another end thereof, the open end being inserted in the outer cylinder, a guide member for guiding the inner cylinder slidably in the outer cylinder, a member for generating a damping force, the damping force generating member being connected to the open end of the inner cylinder, and having an orifice for throttling flow of hydraulic fluid from a chamber in the outer cylinder to a chamber in the inner cylinder, the orifice being in a central portion of the inner cylinder, and a plate-like stop provided between the inner cylinder and the damping force generating member for retaining the damping force generating member against the damping force within a predetermined range, the stop having an aperture greater than the orifice.Field of SearchRelative speed of thrust member or fluid flowHaving varying area of metering rod extending through orifice in thrust member Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) With reservoir for fluid Via fixed or variable orifice in piston | |
