Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 8002092 | Bicycle damper A damper including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may include a groove feature at the location of the openings in the valve shaft which operates to acc... | 08/23/2011 |
| 7878310 | Bicycle damper A damper including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may include a groove feature at the location of the openings in the valve shaft which operates to acc... | 02/01/2011 |
| 7766135 | Front bicycle suspension assembly with inertia valve A front bicycle suspension assembly having an inertia valve is described. The front bicycle suspension assembly may include at least upper and lower telescoping tubes and include a damping tube containing an inertia valve. The inertia valve may include an inertia ma... | 08/03/2010 |
| 7748506 | Bicycle damping enhancement system A bicycle shock absorber and methods for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber couple... | 07/06/2010 |
| 7699146 | Suspension damper having inertia valve and user adjustable pressure-relief A modern suspension damper, for example, a shock absorber or a suspension fork, including an inertia valve and a pressure-relief feature is disclosed. The pressure-relief feature includes a rotatable adjustment knob that allows the pressure-relief threshold to be ex... | 04/20/2010 |
| 7673726 | Bicycle damping enhancement system A bicycle shock absorber and methods for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber couple... | 03/09/2010 |
| 7520372 | Inertia valve vehicle suspension assembly A damper including an inertia valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber is disclosed. In these embodiments, the damper has at least one chamber that at least partially surroun... | 04/21/2009 |
| 7497308 | Bicycle damping enhancement system A bicycle shock absorber and methods for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber couple... | 03/03/2009 |
| 7490705 | Bicycle suspension assembly including inertia valve and gas spring A bicycle suspension assembly including an inertia valve is described. The suspension assembly includes first and second telescopingly engaged tubular portions configured to move closer together during compression of the suspension assembly. The bicycle suspension a... | 02/17/2009 |
| 7484603 | Shock absorber with electronic control A damper including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may be responsive to a vertical acceleration sensor. ... | 02/03/2009 |
| 7360776 | Method and apparatus for rebound control A stabilizing apparatus and method that replaces the existing shock absorber of a road vehicle that works to resist the initiation of body roll during cornering. It seeks to counter act the forces being generated by the vehicle suspension springs that exacerbate the... | 04/22/2008 |
| 7357232 | Front fork in two-wheeled motor vehicle or the like In an inverted type front fork in a two-wheeled motor vehicle or the like, a stopper plate having a through hole formed in a center portion is fitted to an inner periphery of an upper end portion of an inner tube. A rod attached to an outer tube is inserted into the... | 04/15/2008 |
| 7334489 | Dual rate force transducer A dual rate force transducer is disclosed. A spring is machined to have a first spring portion with a first spring rate, a second spring portion with a second spring rate, and a platen between the spring portions. A pair of flanges are affixed to the distal ends of ... | 02/26/2008 |
| 7316409 | Front fork of bicycle with buffer apparatus A front fork of a bicycle, which has damping function, has a lower fork having a closed bottom. An upper fork tube is inserted into the lower fork for reciprocation relative to the lower fork, which has a nozzle at a top thereof. Oil is received in a space between t... | 01/08/2008 |
| 7299906 | Bicycle damping enhancement system A bicycle shock absorber for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber coupled to the fir... | 11/27/2007 |
| 7278632 | Gas spring A gas spring for a pressing tool. A cylindrical chamber is divided by a piston into a first space and a second space. The piston is attached to a piston rod, which is axially moveable in the cylindrical chamber. The gas spring is designed with an opposing force to c... | 10/09/2007 |
| 7273137 | Inertia valve shock absorber A damper including an inertia valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber is disclosed. In these embodiments, the damper has at least one chamber that at least partially surroun... | 09/25/2007 |
| 7270221 | Bicycle damping enhancement system A bicycle shock absorber and methods for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber couple... | 09/18/2007 |
| 7261194 | Bicycle suspension assembly with isolated inertia mass A bicycle suspension assembly including a damper body and having a valve, including a moveable inertia mass, movable between first and second positions to selectively alter the compression damping rate of the bicycle suspension assembly is described. The valve and e... | 08/28/2007 |
| 7216747 | Amplitude controlled orifice valving A dual tube shock absorber includes a spool valve located between the upper working chamber and the reserve chamber. The spool valve moves with the piston rod to open and close a flow path between the upper working chamber and the reserve chamber. This provides a lo... | 05/15/2007 |
| 7174804 | Positioning mechanism for tilt steering A positive lock mechanism having a compression spring rod with a housing, a rod member having an inner end in said housing and an outer end axially outwardly of a housing end. One or more compression springs extend between a guide member and an end of the housing. A... | 02/13/2007 |
| 7134534 | Damper for front fork of vehicle A front fork for a vehicle includes an upper front fork tube, a lower front fork tube movably coupled to the upper front fork tube, a fluid contained in the upper and lower front fork tubes, and a damper fixedly sealedly mounted inside the upper front fork tube. The... | 11/14/2006 |
| 7128192 | Inertia valve shock absorber A damper including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may include a self-centering feature that operates to keep the valve body centered about the valve sh... | 10/31/2006 |
| 7070029 | Monotube piston valving system with selective bleed A shock absorber piston assembly includes a piston having a first face, a second face and a plurality of fluid passages. Preloaded flow control devices each seal at least one of the fluid passages, including: a first bleed plate contacting the first face and a secon... | 07/04/2006 |
| 7025184 | Hydraulic shock absorber with self leveling function for vehicle height A hydraulic shock absorber with a self leveling function for a vehicle height is provided to prevent drop of a relief valve even if an excessive impulsive pressure is applied thereto. The relief valve is provided with a tubular valve case which is press-fitted into ... | 04/11/2006 |
| 6991076 | Bicycle damping enhancement system A bicycle shock absorber for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber coupled to the fir... | 01/31/2006 |
| 6959796 | Adjustable damper with valve mounted in-line A damper includes an outer cylinder and an inner cylinder. The inner cylinder is disposed inside the outer cylinder and contains a rod and valve to define an upper working chamber and a lower working chamber. An adjustable valve portion fluidly communicates the uppe... | 11/01/2005 |
| 6926128 | Adaptive shock damping control A shock absorber damper assembly is provided that includes a working cylinder filled with fluid. A piston and rod are disposed in the working cylinder and move along an axis to provide dampening during a compression stroke. For a twin tube arrangement, a reservoir s... | 08/09/2005 |
| 6793049 | Acceleration sensitive damping for automotive dampers A shock absorber having a pair of valve assemblies which include an acceleration sensitive valve which couples the working chamber of the shock absorber to the shock absorber's reservoir chamber through a fluid path to provide a soft damping characteristic for the s... | 09/21/2004 |
| 6722678 | Bicycle damping enhancement system A bicycle shock absorber for differentiating between rider-induced forces and terrain-induced forces comprising: a first fluid chamber having fluid contained therein; a piston for compressing the fluid within the fluid chamber; a second fluid chamber coupled to the ... | 04/20/2004 |
| 6708803 | Self-leveling dual spring rate strut An integral self-leveling gas shock strut with dual spring rates as a structural load support between a vehicle chassis and wheel. When the vehicle is driving at an inclined longitudinal pitch a gravity sensitive device within the strut governs a pilot valve which o... | 03/23/2004 |
| 6604751 | Inertia valve shock absorber A dampener including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may include a self-centering feature which operates to keep the valve body centered abou... | 08/12/2003 |
| 6581733 | Acceleration sensitive damping for automotive dampers A shock absorber having a pair of valve assemblies which include an acceleration sensitive valve which couples the working chamber of the shock absorber to the shock absorber's reservoir chamber through a fluid path to provide a soft damping characteristi... | 06/24/2003 |
| 6581948 | Inertia valve shock absorber A dampener including a valve movable between an open position and a closed position to selectively alter the compression damping rate of the shock absorber. The valve may include a self-centering feature which operates to keep the valve body centered abou... | 06/24/2003 |
| 6491313 | Variable damper assembly A variable damper assembly 10 is provided for use with a vehicle power steering system and includes a variable orifice valve 20 which controls the flow of fluid between one chamber side 30 of the damper assembly to another chamber side 32 of the damper as... | 12/10/2002 |
| 6412614 | Downhole shock absorber A shock absorber for damping shock energy generated by downhole perforating guns or stimulation devices is described. The shock absorber includes a spring assembly including at least a first spring and a second spring, the first spring having a tension gr... | 07/02/2002 |
| 6345705 | Self-corrective vehicle shock absorber A shock absorber which is responsive to changes in inertia from turning, accelerating or stopping, the change in inertia blocking flow of damping fluid in the normal reactive direction and allowing flow in the opposite direction, the flow in the opposite ... | 02/12/2002 |
| 6334516 | Acceleration sensitive twin tube shock absorber A twin tube shock absorber having inner and outer tube with an annular reservoir between the tubes. A piston in the inner tube divides the inner tube into an upper chamber and a lower chamber and valves through the piston control stiffness of the shock ab... | 01/01/2002 |
| 6253889 | Acceleration sensitive shock absorber An acceleration sensitive shock absorber has a tubular housing and a piston assembly in the housing dividing the housing into an upper chamber and a lower chamber. The piston is connected to the wheel of a vehicle and the housing is connected to the chass... | 07/03/2001 |
| 6253888 | Shock absorber with acceleration sensitive damping control The present invention provides an improved method and apparatus for controlling damping in a shock absorber based on the relative acceleration between the shock main body and the piston rod extended from the shock main body. The shock absorber has a reser... | 07/03/2001 |