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Class Information
Number: 92/94
Name: Expansible chamber devices > Collapsible chamber wall portion (e.g., hinged or flexible wall) > Wall portion formed of flexible material > With separate biasing means
Description: Apparatus including a separate means other than the working fluid associated with the flexible wall portion for continuously exerting a force in one direction of movement of said flexible wall portion.










Sub-classes under this class:

Class Number Class Name Patents
92/95 Adjustable 9


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8117841 Self regulating waste gate Feb. 21, 2012
7677040 Turbocharger with wastegate Mar. 16, 2010
7363851 Spacers for use with actuator casings Apr. 29, 2008
D547220 Human weighing scale with wall mounted display radio receiver and speakers Jul. 24, 2007
7212756 Image forming apparatus with extraordinary state detection May. 1, 2007
7189009 Micro-optical module with housing and method for producing the same Mar. 13, 2007
6994122 Heald frame for weaving machine Feb. 7, 2006
6957806 Airspring assembly Oct. 25, 2005
6658846 Turbocharger with wastegate Dec. 9, 2003
6220145 Band controlled valve/actuator Apr. 24, 2001
5375982 Radial pump Dec. 27, 1994
5279325 Pneumatic control drive Jan. 18, 1994
5031510 Evacuation spring for hydraulic/pneumatic muscle Jul. 16, 1991
5019121 Helical fluid-actuated torsional motor May. 28, 1991
4896753 Bicycle brake Jan. 30, 1990
4860640 Air operated diaphragm spring brake Aug. 29, 1989
4799576 Protective device to prevent projection of a heavy coiled spring away from an air brake housing Jan. 24, 1989
4711158 Linear motion actuator with spring centering means Dec. 8, 1987
4638724 Device for producing mechanical force by pressure of a fluid Jan. 27, 1987
4615258 Drive device operated by a pressure fluid Oct. 7, 1986
4612847 Vacuum control device for the displacement of an element between at least three positions Sep. 23, 1986
4608957 Aggregate for supplying fuel, particularly from a supply container to an internal combustion engine of a motor vehicle Sep. 2, 1986
4596219 Aggregate for supplying fuel, particularly from a supply container to an internal combustion engine of a motor vehicle Jun. 24, 1986
4583447 Pneumatic diaphragm actuator with a pneumatic position controller Apr. 22, 1986
4558584 Combination cable crimper and cutter Dec. 17, 1985
4549470 Pneumatic actuator Oct. 29, 1985
4542680 Vacuum booster device Sep. 24, 1985
4541324 Vacuum actuator with fail-safe system Sep. 17, 1985
4527769 Apparatus for moving a controlled member to a predetermined position Jul. 9, 1985
4522111 Double-acting, fluid actuated positioning actuator Jun. 11, 1985
4511117 Activating apparatus in a liquid conveying system operated by vacuum, preferably a so-called vacuum sewage system Apr. 16, 1985
4506578 Pneumatic apparatus for actuating metal shear Mar. 26, 1985
4505188 Pneumatic actuator Mar. 19, 1985
4488341 Method of making a fluid pressure actuator Dec. 18, 1984
4480811 Fail-safe actuator device Nov. 6, 1984
4478107 Suction cap for an automatic gearbox Oct. 23, 1984
4403539 Arrangement for connecting a diaphragm with an actuator rod in a diaphragm-operated device Sep. 13, 1983
4403538 Turbocharger control actuator Sep. 13, 1983
4388856 Idle speed control actuator Jun. 21, 1983
4376619 Accumulator-reservoir device diaphragm control Mar. 15, 1983
4354425 Fire-safe valve actuator Oct. 19, 1982
4306639 Disc brake caliper with molded flex piston Dec. 22, 1981
4292887 Power servo booster Oct. 6, 1981
4256019 Turbocharger control actuator Mar. 17, 1981
4251050 Turbocharger control actuator Feb. 17, 1981
4244554 Springless diaphragm valve Jan. 13, 1981
4240335 Floating seal for fluidic devices Dec. 23, 1980
4238991 Three-position actuator Dec. 16, 1980
4231287 Spring diaphragm Nov. 4, 1980
4203352 Piston for multi-stage operation May. 20, 1980

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