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Class Information
Number: 92/90
Name: Expansible chamber devices > Collapsible chamber wall portion (e.g., hinged or flexible wall) > Wall portion formed of flexible material
Description: Apparatus in which the wall portion is formed of flexible material.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617874 |
Flexible matrix composite actuator for use in subsurface wellbores |
Nov. 17, 2009 |
| 7387500 |
Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
Jun. 17, 2008 |
| 7344363 |
Remedies to prevent cracking in a liquid system |
Mar. 18, 2008 |
| 7331273 |
Pneumatic actuator |
Feb. 19, 2008 |
| 6952977 |
Weight compensation device |
Oct. 11, 2005 |
| 6840152 |
Actuating means |
Jan. 11, 2005 |
| 6807865 |
Pressure sensor with a radially tensioned metal diaphragm |
Oct. 26, 2004 |
| 6708808 |
Torque-transmitting mechanism with a self-returning piston |
Mar. 23, 2004 |
| 6679687 |
Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
Jan. 20, 2004 |
| 6668659 |
Load detecting device |
Dec. 30, 2003 |
| 6666127 |
Artificial muscle |
Dec. 23, 2003 |
| 6539987 |
Method of pressure processing enclosures having bi-stable valves |
Apr. 1, 2003 |
| 6405533 |
Apparatus for reducing vibration inputs to a device and/or for micropositioning |
Jun. 18, 2002 |
| 6305913 |
Pressure processing a pumpable substance with a flexible membrane |
Oct. 23, 2001 |
| 6254355 |
Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
Jul. 3, 2001 |
| 6220145 |
Band controlled valve/actuator |
Apr. 24, 2001 |
| 6196111 |
Band controlled valve/actuator |
Mar. 6, 2001 |
| 6193107 |
Bladder water gun |
Feb. 27, 2001 |
| 6173641 |
Band controlled valve/actuator |
Jan. 16, 2001 |
| 6146114 |
Fluid pump and expandable energy storage device |
Nov. 14, 2000 |
| 5992296 |
Hydraulic pump |
Nov. 30, 1999 |
| 5979864 |
Double convoluted pliable pressure conversion unit |
Nov. 9, 1999 |
| 5906295 |
Bladder for water gun |
May. 25, 1999 |
| 5865344 |
Water gun with refillable pressurized bladder chamber |
Feb. 2, 1999 |
| 5860352 |
Actuator for generating high regulating forces and large regulating distances |
Jan. 19, 1999 |
| 5799827 |
Bladder water gun |
Sep. 1, 1998 |
| 5758800 |
Bladder for water gun |
Jun. 2, 1998 |
| 5657682 |
Hose piston for transporting external objects along a flexible hose |
Aug. 19, 1997 |
| 5638737 |
Spline pumping assembly |
Jun. 17, 1997 |
| 5553803 |
Belt tensioner for safety belts for motor vehicles |
Sep. 10, 1996 |
| 5506012 |
Multiple chambered lift bag |
Apr. 9, 1996 |
| 5435230 |
Inflation mechanism |
Jul. 25, 1995 |
| 5431089 |
Force generating mechanism |
Jul. 11, 1995 |
| 5261320 |
Pneumatic rotary drive |
Nov. 16, 1993 |
| 5230276 |
Fluid-driven actuator including an inflatable sac |
Jul. 27, 1993 |
| 5181452 |
Bellows actuator |
Jan. 26, 1993 |
| 5167631 |
Portable infusion device |
Dec. 1, 1992 |
| 5158005 |
Actuator using elastic extensible member |
Oct. 27, 1992 |
| 5134889 |
Mechanical transducer |
Aug. 4, 1992 |
| 5097880 |
Rotary log debarker with improved air management system |
Mar. 24, 1992 |
| 5096009 |
Method and arrangement for displacing forces |
Mar. 17, 1992 |
| 5052276 |
Diaphragm construction |
Oct. 1, 1991 |
| 5033270 |
Rotary bellows |
Jul. 23, 1991 |
| 5014600 |
Bistep terminator for hydraulic or pneumatic muscle |
May. 14, 1991 |
| 4984970 |
Arrangements on coned rings which are applicable in high pressure pumps and related devices |
Jan. 15, 1991 |
| 4939982 |
Axially contractable actuator |
Jul. 10, 1990 |
| 4886432 |
Bladder pump assembly |
Dec. 12, 1989 |
| 4876946 |
Flexible hose pump |
Oct. 31, 1989 |
| 4841845 |
Hydraulic or pneumatic drive device |
Jun. 27, 1989 |
| 4838147 |
Pressure fluid actuator |
Jun. 13, 1989 |
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