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Class Information
Number: 188/313
Name: Brakes > Internal-resistance motion retarder > Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) > With valve controlling fluid flow between chambers or compartments of the chamber
Description: Thrust member and variable volume chamber wherein a regulator permits restricted movement of fluid from one section to another section as the volumes of the sections change.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621383 |
Double tube hydraulic shock absorber |
Nov. 24, 2009 |
| 7621382 |
Shock absorber |
Nov. 24, 2009 |
| 7575110 |
Built-in damper type front fork |
Aug. 18, 2009 |
| 7568562 |
Self-pumping hydropneumatic spring strut |
Aug. 4, 2009 |
| 7520372 |
Inertia valve vehicle suspension assembly |
Apr. 21, 2009 |
| 7497452 |
Hydro-pneumatic vehicle suspension system with a double acting cylinder and accumulators |
Mar. 3, 2009 |
| 7458448 |
Hydraulic shock absorber |
Dec. 2, 2008 |
| 7448638 |
Front bicycle suspension assembly with inertia valve |
Nov. 11, 2008 |
| 7431135 |
Stroke dependent damping |
Oct. 7, 2008 |
| 7428953 |
Gas spring with end position damping |
Sep. 30, 2008 |
| 7395907 |
Shock absorber with frequency-dependent damping |
Jul. 8, 2008 |
| 7370849 |
Self-pumping hydropneumatic spring strut unit |
May. 13, 2008 |
| 7322449 |
Hydraulic shock absorber |
Jan. 29, 2008 |
| 7320387 |
Load adaptive damper with transient air signal restrictor |
Jan. 22, 2008 |
| 7290643 |
Front fork in two-wheeled motor vehicle or the like |
Nov. 6, 2007 |
| 7273138 |
Damping force variable valve and shock absorber using same |
Sep. 25, 2007 |
| 7234574 |
Damping coefficient switching-type hydraulic damper |
Jun. 26, 2007 |
| 7172057 |
Vibration damper with amplitude-dependent damping force |
Feb. 6, 2007 |
| 7156213 |
Shock absorber having a hydraulic stop |
Jan. 2, 2007 |
| 7143875 |
Attenuation coefficient switching type hydraulic damper |
Dec. 5, 2006 |
| 7111711 |
Vibration damper with stroke-dependent damping force |
Sep. 26, 2006 |
| 7097012 |
Compact temperature compensating gas spring |
Aug. 29, 2006 |
| 7070028 |
Frequency dependent damper |
Jul. 4, 2006 |
| 7066307 |
Hydraulic dashpot for motor vehicles |
Jun. 27, 2006 |
| 7032727 |
Shock absorber having a hydraulic stop |
Apr. 25, 2006 |
| 6997959 |
Multi-functional artifical knee joint |
Feb. 14, 2006 |
| 6966412 |
Position-sensitive shock absorber |
Nov. 22, 2005 |
| 6959796 |
Adjustable damper with valve mounted in-line |
Nov. 1, 2005 |
| 6918472 |
Arrangement for a piston and cylinder device |
Jul. 19, 2005 |
| 6880684 |
Flow regulator for a gas shock absorber |
Apr. 19, 2005 |
| 6863163 |
Self leveling vehicle suspension damper |
Mar. 8, 2005 |
| 6860369 |
Vibration damper with variable damping force |
Mar. 1, 2005 |
| 6782980 |
Controllable damping force hydraulic shock absorber |
Aug. 31, 2004 |
| 6749045 |
Passive force element on the basis of electrorheologic liquids |
Jun. 15, 2004 |
| 6736245 |
Dampening cylinder incorporating stop valve |
May. 18, 2004 |
| 6684990 |
Tube structure and tube manufacturing method for hydraulic damper |
Feb. 3, 2004 |
| 6668986 |
Active hydraulic fluid vehicular suspension damper |
Dec. 30, 2003 |
| 6659240 |
Arrangement for a piston and cylinder device |
Dec. 9, 2003 |
| 6655509 |
Impact damper |
Dec. 2, 2003 |
| 6558430 |
Air-cylinder apparatus for prosthetic limb |
May. 6, 2003 |
| 6467592 |
Arrangement for a piston and cylinder device |
Oct. 22, 2002 |
| 6412614 |
Downhole shock absorber |
Jul. 2, 2002 |
| 6382370 |
Shock absorber with an adjustable lock-out value and two-stage flow restriction |
May. 7, 2002 |
| 6352143 |
Vibration damping system using a hydraulic damper with a field responsive fluid control |
Mar. 5, 2002 |
| 6321888 |
Damper with externally mounted semi-active system |
Nov. 27, 2001 |
| 6311961 |
Hydro-pneumatic suspension unit for land-vehicles |
Nov. 6, 2001 |
| 6286642 |
Fluid regulating device for use with a shock-absorbing cylinder to obtain a variable shock absorbing effect |
Sep. 11, 2001 |
| 6217049 |
Bicycle suspension system with spring preload adjuster and hydraulic lockout device |
Apr. 17, 2001 |
| 5996748 |
Damping force adjusting type hydraulic shock absorber |
Dec. 7, 1999 |
| 5988329 |
Rotary damper |
Nov. 23, 1999 |
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