Fluid-actuated devices for displacing a member from one position to another Gearing associated therewith

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F15Hydraulics devices F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL FLUID-PRESSURE ACTUATORS

F15B15/00Fluid-actuated devices for displacing a member from one position to another Gearing associated therewith

F15B15/02Mechanical lay-out characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member F15B15/04with oscillating cylinder F15B15/06for mechanically converting rectilinear movement into non- rectilinear movement F15B15/061by unidirectional means F15B15/063Actuator having both linear and rotary output F15B15/065the motor being of the rack-and-pinion type F15B15/066the motor being of the scotch yoke type F15B15/068the motor being of the helical type F15B15/08characterised by the construction of the motor unit F15B15/082the motor being of the slotted cylinder type F15B15/084the motor being of the rodless piston type F15B15/086with magnetic coupling F15B15/088the motor using combined actuation F15B15/10the motor being of diaphragm type F15B15/103using inflatable bodies that contract when fluid pressure is applied F15B15/106the motor being of the pinching-roller type F15B15/12of the oscillating-vane or curved-cylinder type F15B15/125of the curved-cylinder type F15B15/14of the straight-cylinder type F15B15/1404in clusters F15B15/1409with two or more independently movable working pistons F15B15/1414with non-rotatable piston F15B15/1419of non-circular cross-section F15B15/1423Component parts; Constructional details F15B15/1428Cylinders F15B15/1433End caps F15B15/1438Cylinder to end cap assemblies F15B15/1442End cap sealings F15B15/1447Pistons; Piston to piston rod assemblies F15B15/1452Piston sealings F15B15/1457Piston rods F15B15/1461Piston rod sealings F15B15/1466Hollow piston sliding over a stationary rod inside the cylinder F15B15/1471Guiding means other than in the end cap F15B15/1476Special return means F15B15/148Lost-motion means between the piston and the output F15B15/1485Special measures for cooling or heating F15B15/149Fluid interconnections F15B15/16of the telescopic type F15B15/165with synchronisation of sections F15B15/17of differential-piston type F15B15/18Combined units comprising both motor and pump F15B15/19Pyrotechnical actuators F15B15/20Other details F15B15/202Externally-operated valves mounted in or on the actuator F15B15/204Control means for piston speed or actuating force without external control F15B15/22for accelerating or decelerating the stroke F15B15/221for accelerating the stroke F15B15/222having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position F15B15/223having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position F15B15/224having a piston which closes off fluid outlets in the cylinder bore by its own movement F15B15/225with valve stems operated by contact with the piston end face or with the cylinder wall F15B15/226having elastic elements F15B15/227having an auxiliary cushioning piston within the main piston or the cylinder end face F15B15/228having shock absorbers mounted outside the actuator housing F15B15/24for restricting the stroke F15B15/26Locking mechanisms F15B15/261using positive interengagement F15B15/262using friction F15B15/264Screw mechanisms attached to the piston F15B15/265specially adapted for rodless pistons or slotted cylinders F15B15/28Means for indicating the position F15B15/2807Position switches, i.e. means for sensing of discrete positions only F15B15/2815Position sensing, i.e. means for continuous measurement of position F15B15/2823by a screw mechanism attached to the piston F15B15/283using a cable wrapped on a drum and attached to the piston F15B15/2838with out using position sensors F15B15/2846using detection of markings F15B15/2853using potentiometers F15B15/2861using magnetic means F15B15/2869using electromagnetic radiation F15B15/2876using optical means F15B15/2884using sound F15B15/2892characterised by the attachment means