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2. Pneumatic actuator - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_actuator

   A pneumatic actuator mainly consists of a piston or a diaphragm which develops the motive power. It keeps the air in the upper portion of the cylinder, allowing air pressure to force the diaphragm or piston to move the valve stem or rotate the valve control element. Valves require little pressure to operate and usually double or triple the ...

3. Fire damper - Wikipedia

   en.wikipedia.org/wiki/Fire_damper

   Fire/smoke dampers are similar to fire dampers in fire resistance rating, and also prevent the spread of smoke inside the ducts. When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to ...

4. Valve actuator - Wikipedia

   en.wikipedia.org/wiki/Valve_actuator

   Valve actuator. Electric actuator (blue cylinder) on a valve in a power plant. A black handwheel is visible on the actuator, which allows manual positioning of the valve. The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator.

5. Shock absorber - Wikipedia

   en.wikipedia.org/wiki/Shock_absorber

   Shock absorbers are an important part of car suspension designed to increase comfort, stability and overall safety. The shock absorber, produced with precision and engineering skills, has many important features. The most common type is a hydraulic shock absorber, which usually includes a piston, a cylinder, and an oil-filled chamber.

6. Linear actuator - Wikipedia

   en.wikipedia.org/wiki/Linear_actuator

   DVD drive with leadscrew and stepper motor. Floppy disc drive with leadscrew and stepper motor. A linear actuator is an actuator that creates linear motion (i.e., in a straight line), in contrast to the circular motion of a conventional electric motor. Linear actuators are used in machine tools and industrial machinery, in computer peripherals ...

7. Pneumatic cylinder - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_cylinder

   Pneumatic cylinder, also known as air cylinder, is a mechanical device which uses the power of compressed gas to produce a force in a reciprocating linear motion. [ 1]: 85. Like in a hydraulic cylinder, something forces a piston to move in the desired direction. The piston is a disc or cylinder, and the piston rod transfers the force it ...

8. Federal judge dismisses Trump classified documents case over ...

   www.aol.com/news/federal-judge-dismisses-trump...

   A federal judge in Florida dismissed the classified documents case against former President Donald Trump on Monday, siding with defense lawyers who said the special counsel who filed the charges ...

9. Pneumatic artificial muscles - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_artificial_muscles

   Air muscle contracting and extending. Pneumatic artificial muscles ( PAMs) are contractile or extensional devices operated by pressurized air filling a pneumatic bladder. In an approximation of human muscles, PAMs are usually grouped in pairs: one agonist and one antagonist . PAMs were first developed (under the name of McKibben Artificial ...