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Class Information
Number: 92/136
Name: Expansible chamber devices > With toothed gear, spline or thread rigid with working member
Description: Apparatus including means forming a part of the working member for engagement with a relatively movable element, said means comprising (1) a spline extending longitudinally of the working member, (2) gear teeth or (3) a thread.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8646376 Double rack and pinion oscillating device Feb. 11, 2014
8567752 Rotary valve actuators having partial stroke damping apparatus Oct. 29, 2013
8530051 High strength gear, power transmission mechanism using same, and production method for high strength gear Sep. 10, 2013
8495948 Power distribution unit with a hydrostatic and mechanical power branch Jul. 30, 2013
8459174 Rod-less cylinder device and system and method for operating thereof Jun. 11, 2013
8393151 Flow rate control device of hydraulic pump in power steering system Mar. 12, 2013
8356477 Dual linear actuator Jan. 22, 2013
8347779 Rotary actuator Jan. 8, 2013
8056466 Pneumatic actuator, in particular for valves Nov. 15, 2011
7921689 Pneumatic biasing of a linear actuator and implementations thereof Apr. 12, 2011
7789013 Variable focus optical devices Sep. 7, 2010
7748308 Pneumatic biasing of a linear actuator and implementations thereof Jul. 6, 2010
7690293 Coupling system for use with fluid displacement apparatus Apr. 6, 2010
7591216 Fluid powered dual-piston actuator with efficient fluid porting and method of implementation Sep. 22, 2009
7574952 Motor fluid drive, especially for rotary, pivotal or linear drive units and corresponding method Aug. 18, 2009
7574953 Rotary clamp cylinder Aug. 18, 2009
7540208 Reciprocal force outputting mechanism Jun. 2, 2009
7487709 Adjustable-length actuating element Feb. 10, 2009
7472640 Pneumatic rotary actuator Jan. 6, 2009
7448312 Hydraulic swivel drive for a grab Nov. 11, 2008
7363848 Rotating or pivoting device and connection module for a rotating or pivoting device Apr. 29, 2008
7357066 Sealing structure of an up-down type piston assembly for exhausting a content Apr. 15, 2008
7311035 Subsea hydraulic junction plate actuator with R.O.V. mechanical override Dec. 25, 2007
7293967 Pump apparatus Nov. 13, 2007
7290480 Swing cylinder Nov. 6, 2007
7287458 Yoke mechanism for compressor Oct. 30, 2007
7267044 Compact actuator with large thrust Sep. 11, 2007
7213504 Hydraulic actuator May. 8, 2007
7210720 Timed rotation tool assembly and actuator May. 1, 2007
7100493 Pneumatic actuator Sep. 5, 2006
7051642 Liquid container May. 30, 2006
7044048 Drive unit for a motor vehicle axle stabilizer May. 16, 2006
7028602 Linear, hydraulic pivot drive Apr. 18, 2006
7021196 Steering rack Apr. 4, 2006
6910409 Oscillating actuator Jun. 28, 2005
6776083 Membrane actuator Aug. 17, 2004
6749408 Piston pump Jun. 15, 2004
6708489 Pneumatic actuator Mar. 23, 2004
6679057 Variable geometry turbocharger Jan. 20, 2004
6668988 Buffering mechanism Dec. 30, 2003
6666129 Operating device for a rotatable closing element of a valve Dec. 23, 2003
6640689 Double-rack-and-pinion swinging apparatus Nov. 4, 2003
6637314 Actuator Oct. 28, 2003
6626055 Rack and pinion type swing actuator Sep. 30, 2003
6510780 Ball screw driven pump Jan. 28, 2003
6453795 Locking mechanism for a spring-actuated device Sep. 24, 2002
6446436 Master cylinder for use in power trains of motor vehicles Sep. 10, 2002
6439104 Small size air pump Aug. 27, 2002
6431048 Combination actuator with speed variable mechanism Aug. 13, 2002
6397722 Variable torque accommodating, pressure fluid driven, transmissionless engine Jun. 4, 2002

1 2 3 4 5










 
 
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