Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7322449 | Hydraulic shock absorber A piston connected to a piston rod is fitted into a cylinder in which a hydraulic fluid is sealably contained. A flow of the hydraulic fluid is generated in an extension-side fluid passage and a compression-side fluid passage according to a sliding motion of the pis... | 01/29/2008 |
| 7255209 | Integrated suspension system for vehicle An integrated suspension system includes a cylinder that hermetically contains gas therein; a piston that has a motor at an upper portion thereof; a disk unit including a second disk that has a plurality of passage holes formed there through and a bottom surface cou... | 08/14/2007 |
| 7172057 | Vibration damper with amplitude-dependent damping force Vibration damper comprising a piston rod, which is guided with freedom of axial movement in a damping medium-filled cylinder and which carries a piston, which divides the cylinder into two working spaces. At least one of the two working spaces has a flow connection ... | 02/06/2007 |
| 7097016 | Fulcrum blow off valve for use in a shock absorber A shock absorber includes a rebound valve assembly which performs the flexing disc function normally required for allowing the passage of fluid from one side of a piston assembly to the opposite side during the stroke of the shock absorber. The rebound valve assembl... | 08/29/2006 |
| 7073643 | Compensated rod for a frequency dependent damper shock absorber A frequency-dependent damper incorporates a compensated piston assembly to reduce the amount of static push-out force. The piston rod is a hollow rod with a compensator being disposed within the hollow portion of the piston rod. The piston rod is a hollow rod with a... | 07/11/2006 |
| 7070028 | Frequency dependent damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A flow path extends through the piston to provide fluid communication between the upper and lowe... | 07/04/2006 |
| 7040468 | Hydraulic shock absorber A hydraulic shock absorber includes a cylindrical housing within which a piston assembly is slidably received. The piston assembly includes a piston element connected to a piston rod and adapted to divide an interior of the housing into compression and rebound chamb... | 05/09/2006 |
| 7017719 | Vibration damper with adjustable damping force A piston is guided with freedom of axial movement in a damping medium-filled pressure tube, the piston dividing the pressure tube into a working space on the piston rod side of the piston and a working space on the side away from the piston rod. The medium can flow ... | 03/28/2006 |
| 7000907 | Spring system for bicycles The present invention relates to a spring system for bicycles having a first load-applying segment and a second load-applying segment as well as at least one positive spring and at least one negative spring arranged to be effectively operable between the first and t... | 02/21/2006 |
| 6978872 | Hydraulic dampers with pressure regulated control valve A suspension damper includes a housing bounding a main chamber. A piston rod is slideably disposed within the main chamber of the housing. A main piston is mounted on the first end of the piston rod within the main chamber of the housing so as to slideably engage ag... | 12/27/2005 |
| 6928923 | Piston with supporting connector elements for a piston-cylinder arrangement, in particular a shock absorber piston A piston for a piston-cylinder arrangement, in particular a shock absorber piston exhibiting a piston body (6) provided with one peripheral web (12) protruding from the peripheral surface, disposed on said peripheral surface in both areas, each of whic... | 08/16/2005 |
| 6860369 | Vibration damper with variable damping force A vibration damper with variable damping force, includes a cylinder filled with damping medium and in which a piston fastened to a piston rod axially moveably therein. The piston divides the working cylinder into two working spaces. The damping force for the directi... | 03/01/2005 |
| 6782980 | Controllable damping force hydraulic shock absorber A piston having a piston rod connected thereto is slidably fitted in a cylinder in which a hydraulic fluid is sealably contained. Extension-stroke and compression-stroke pilot type damping force control mechanisms are provided in the piston. A pilot control valve of... | 08/31/2004 |
| 6782979 | Shock-absorbing element for a motor vehicle Known shock-absorbing elements are provided with overflow throttles equipped with sealing disks. These overflow throttles have different opening characteristics for the two directions which cannot be changed. The aim of the invention is therefore to provide a novel ... | 08/31/2004 |
| 6698559 | Hydraulic damping device A hydraulic damping device has a cylinder, a rod, a piston, a first biasing member, a seal and a second biasing member. The rod moveably extends into the cylinder. The piston is securely attached to the rod to divide the cylinder into two chambers. The pi... | 03/02/2004 |
| 6655509 | Impact damper An impact damper as a connecting member between a bumper and a chassis of a motor vehicle for the purpose of damping the shock loading during a collision between this motor vehicle and an obstacle through hydraulic damping forces and gas-spring forces. Th... | 12/02/2003 |
| 6637555 | Pneumatic connections for vehicle suspensions The invention provides a damper assembly (10) comprising a housing (12) defining an inner chamber (22, 24) having a damping fluid disposed therein. A piston rod (14) is slidably retained by the housing (12), and at least partially extends into, the chambe... | 10/28/2003 |
| 6543754 | Air spring Spring characteristics are switched in response to running conditions or use requirements of a bicycle in order to improve riding comfort and vehicle performance. A rod 2 is connected to a piston 3 which slides in a cylinder 1, a piston-side chamber (A) a... | 04/08/2003 |
| 6439356 | Controlled oscillating damper Oscillating damper comprising: a housing (12) defining a chamber (14) filled with damping fluid, an oscillating plate (22), movable within the chamber (14) and placed so as to divide the chamber (14) into two sections of variable volume (24, 26), and at l... | 08/27/2002 |
| 6382370 | Shock absorber with an adjustable lock-out value and two-stage flow restriction A suspension system with a shock absorber having a manually adjustable lock-out valve and a blow-off valve for controlling damping characteristics suitable for a wide variety of large, medium, and small bumps, and rider induced suspension action, while se... | 05/07/2002 |
| 6364075 | Frequency dependent damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A series of extension passages extend through the piston and are opened and closed by... | 04/02/2002 |
| 6328291 | Shock absorber The present invention relates to a hydropneumatic shock absorber. This new telescopic system comprises an outer sliding tube, an inner sliding tube and structure for adjusting the braking level of the shock absorber in expansion. Fastened on the base of t... | 12/11/2001 |
| 6318523 | Flexible monotube valve with digressive performance and independent low speed orifice A piston valve assembly for regulating the flow of fluid through a mono-tube fluid vehicle damper is provided. The assembly includes a piston rod and a piston end having opposing first and second surfaces secured to the piston rod by a connector. A first ... | 11/20/2001 |
| 6276498 | Piston for a piston cylinder assembly A piston for a piston/cylinder assembly is fastened to a piston rod and axially movably arranged in a working cylinder filled with damping medium. The piston having damping valves for the tension and compression movements of the piston in the cylinder and... | 08/21/2001 |
| 6179099 | Gas spring having an intermediate stop function and temperature compensation A gas spring includes a cylinder containing a fluid at least part of which is a compressed gas. The cylinder receives a piston that is affixed to a piston rod and divides the cylinder into two working chambers. The piston has a one-way valve that is cycle... | 01/30/2001 |
| 6161663 | Stroke limiting velocity sensitive valve for a hydraulic lock mechanism Apparatus for preventing the unwanted extension of a hydraulic lock when the lock is subjected to relatively high dynamic loads. The lock includes a hydraulic cylinder having a piston slidably mounted therein. The piston is secured to a piston rod which p... | 12/19/2000 |
| 6148969 | Frequency dependant damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A series of extension passages extend through the piston and are always left open. A ... | 11/21/2000 |
| 6119832 | Pneumatic movement damper A pneumatic movement damper has a cylinder closed on one side, a piston that slides within the cylinder and is connected to a piston rod, a packing mounted on the piston and a throttle passage arranged in the piston for connecting the two cylinder spaces ... | 09/19/2000 |
| 6085876 | Flexing disc-blow off assembly for use in a shock absorber A shock absorber utilizes a single flexing disc assembly includes a flexing disc which is capable of performing the flexing disc function normally required for allowing the passage of fluid between the two sides of a shock absorber while also providing th... | 07/11/2000 |
| 6085877 | Bi-Directional Multiple State Suspension Damper A damper provides tunable variable rates in both extension and compression operation. A piston is carried in a cylinder tube separating out extension and compression chambers. The piston carries a first valving assembly that is tuned to provide a first da... | 07/11/2000 |
| 6053486 | Damping cylinder A damping cylinder having a staged rate of movement. The cylinder includes a tube, a rod extending from the tube, and a piston carried by the rod within the tube. A liquid at least partially fills the cylinder, and the piston travels within the liquid. A ... | 04/25/2000 |
| 6042091 | Shock absorber The present invention relates to a hydropneumatic shock absorber. This new telescopic system comprises an outer sliding tube, an inner sliding tube having an adjustable braking level of the shock absorber in expansion. Fastened on the base of the outer sl... | 03/28/2000 |
| 6026939 | Shock absorber with stanchion mounted bypass damping A dampener (628) for a shock absorber of a vehicle, such as a bicycle, is mounted within a telescoping front fork including a stanchion tube (116) and a coaxial slide tube (618). The dampener includes an internally received hydraulic fluid sleeve (640) th... | 02/22/2000 |
| 6007057 | Gas spring with braking means A pressurized gas spring, which exerts an expulsion force on the piston rod entailing a maximum extension velocity of the piston rod, includes braking means effective at a velocity of motion due to external forces above the maximum extension velocity for ... | 12/28/1999 |
| 5996747 | Automatic-return hydraulic device, especially for vehicle seats The device comprises a cylinder (1) which is divided in two variable volume chambers (3,4) by a piston (2,2'), which has conduits (5,5') for the passage of a fluid from one chamber to the other, and spring means (15) for pushing the piston in a predetermi... | 12/07/1999 |
| 5937976 | Vibration damper with restrictor plate A vibration damper, whose cylinder tube is divided into two work chambers by a piston, is attached to a piston rod. A damping valve includes a damping valve body. Embossed areas have been formed into the main body of the damping valve body. The damping va... | 08/17/1999 |
| 5913391 | Damper The orientation insensitive, non-cavitating differential, bi-directional damper has a tubular body defining a closed, elongated chamber that has a first end and a second end. A piston assembly is disposed in and is movable within a portion of the chamber.... | 06/22/1999 |
| 5911290 | Step motor actuated continuous variable shock absorber An adjustable damping shock absorber includes a pressure tube with a piston valve assembly slidably disposed within it. The piston valve assembly includes a compression valve assembly which is biased to a closed position and an extension valve assembly wh... | 06/15/1999 |
| 5823306 | Stroke dependent damping A two-stage shock absorber having a pressure tube within which a valve assembly is slidably disposed. A piston rod is attached to the valve assembly and extends out of the pressure tube. In a first embodiment, a ring which is slidably disposed within the ... | 10/20/1998 |
| 5810128 | Shock absorber An improved shock absorber for a vehicle suspension system that incorporates an internal damping arrangement that permits a smooth transition between first and second damping rates. The mechanism includes a metering rod that is mounted in such a way that ... | 09/22/1998 |
