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| Number | Title | Issue Date |
| 4262779 | Shock absorber with reservoir and working chamber communicating structure A shock absorber and suspension strut unit having an outer cylinder containing a predetermined amount of a damping liquid. An inner cylinder is mounted rigidly and concentrically in the outer cylinder and is arranged so as to form an intermediate concentr... | 04/21/1981 |
| 4235317 | Apparatus for absorbing mechanical energy in particular energy of very strong shocks A shock absorber comprising telescopically inserted cylinders, the empty space between them being filled with a medium of appropriately selected rheological properties of increasing viscosity, decreasing elasticity and one of which being filled with a med... | 11/25/1980 |
| 4235576 | Presses A mechanical press has a self-adjusting device for automatically setting the position of the mould in the correct position with respect to the stroke of the pressram. The device is located between a fixed platen and a mould carrier and comprises a cylinde... | 11/25/1980 |
| 4189033 | Shock absorber A dual tube hydraulic shock absorber includes an inner tube or a cylinder slidably receiving a piston therein, a piston rod secured to the piston and extending out of the cylinder through the upper end thereof, an outer tube surrounding the cylinder to de... | 02/19/1980 |
| 4173130 | Drilling shock sub A drill string protecting axial shock absorbing sub which is relatively short and rugged and comprises inner and outer telescopically intersplined tubular elements forming therebetween an annular shock absorbing cushion confining piston chamber which is f... | 11/06/1979 |
| 4132130 | Safety flywheel An inertial energy storage device is disclosed employing a safety flywheel which is made of flexible material such as a twisted rope ring. The rigidity required for such a device is achieved through centrifugal forces inherent in such a device when it is ... | 01/02/1979 |
| 4132395 | Shock absorber with improved extension damping A shock absorber, particularly adapted for use in the rear suspension of a motorcycle, comprises a tubular housing having a piston reciprocally mounted therein. A first chamber is defined between the housing and the head end of the piston whereas a second... | 01/02/1979 |
| 4131139 | Gas filling method for gas spring A method for filling gas into a cylinder having a rod slidably extending from one end thereof. The method involves the steps of forming a reduced diameter portion in the rod at a position adjacent to the inner end thereof, locating the rod at the position... | 12/26/1978 |
| 4108046 | Liquid-gas constant force recoil spring A constant-force spring of the liquid-gas type comprising a piston slidable n a cylinder and an elastomeric bladder enclosed in the cylinder. The bladder is filled with a gas, preferably nitrogen. The rest of the cylinder is filled with a compressible liqu... | 08/22/1978 |
| 4106596 | Hydropneumatic single tube shock absorber, in particular steering shock absorber A damper cylinder is partially filled with highly compressed gas and with operating fluid. A damping piston and connected rod portion are reciprocally movable in the cylinder operating fluid. A partition wall is fixedly mounted in the inner periphery of t... | 08/15/1978 |
| 4082255 | Oleo-pneumatic damper An oleo-pneumatic damper comprises a hollow rod slidable within a cylinder, and a low-pressure gas chamber defined within the cylinder adjacent to a first variable volume of hydraulic fluid, which volume is essentially provided in the hollow rod. A second... | 04/04/1978 |
| 4071057 | Method for filling gas into sealed cylinder device A method for filling gas into a sealed cylinder device having a rod guide closing one end thereof and guiding a rod slidably therethrough comprising the steps of forming the rod guide to have a cavity consisting of a cylindrical portion to retain a seal t... | 01/31/1978 |
| 4057264 | Front fork for suspending a front wheel of a motorcycle A front fork for suspending a front wheel of a motorcycle has an outer tube and an inner tube slidably accomodated therein. A pressure chamber is defined between the inner tube and a hollow rod and communicates with a lower chamber formed in the outer tub... | 11/08/1977 |
| 4022448 | Vehicle suspension unit and method of assembly thereof A supplementary air spring unit suitable for user installation on a damper or shock absorber having a generally cylindrical body in which one bead end of a resilient tubular rolling-lobe boot is removably sealingly secured on the shock absorber body by a ... | 05/10/1977 |
| 4002244 | Buffer, particularly suitable for use in railway vehicles A buffer, particularly suitable for use in railway vehicles, comprising a cylinder including a movable piston and a buffer fluid contained therein, the buffer fluid formed of a very high-viscosity fluid such as silicone oil, and at the same time the cylin... | 01/11/1977 |
| 3993294 | Hydropneumatic shock absorber A hydropneumatic shock absorber for use between a bumper and the chassis of a motor vehicle has a cylinder and a plunger guided in the cylinder by the radially enlarged inner end portion of the plunger and by an annular sealing assembly which axially boun... | 11/23/1976 |
| 3957259 | Apparatus for cylinders to be filled with pressurised gas A piston and cylinder unit, such as a shock absorber which can be filled with pressurised gas. The piston rod is hollow and extends through a seal to communicate with the interior of the cylinder via a bore. The outer end of the hollow rod is adapted for ... | 05/18/1976 |
| 3931961 | Shock absorber A shock absorber comprising an elongated cylindrical pressure cylinder having a piston reciprocally disposed therewithin and connected to a piston rod extending outwardly from one end thereof, teh piston rod carrying a dirt shield which extends coaxially ... | 01/13/1976 |
