The Complete Book of Airpot - Airpot - #5

The Airpot is velocity sensitive and resists these surges, providing more consistent operating conditions and preventing damage.

(as shown below left), a two-way damping Airpot prevents the pendu­lum from reacting violently to sudden changes, stabilizing the pendulum but allowing it to move smoothly with angular change.

In sensitive scales, Airpot protects against loading shock without interfer­ing with measurement.

Airpot provides protection where high speed stop and start can lead to overshoot, fouling, and backlash.

In refrigerator ice dispensers an

Airpot slows closure of the spring loaded ice chute doors.

In beverage vending machines it

controls descent of filling compart­ment access doors.

providing smooth precise positioning.

In high speed filament winders (as

shown below left), Airpot actuators are part of a force control system to maintain proper filament tension. The ultra-low friction Airpots provide precise, hysteresis-free force control in response to small pressure or vacuum changes directed by the controller.

In automatic assembly and semi­conductor equipment, it smoothly dispenses and positions parts.

When controlled deceleration is required at the end of the stroke of your mechanism, the Airpot snubber config­uration is particularly useful. It performs push damping only and the push rod is not connected to the work.

In office copiers (as above), an Airpot snubber damps the lens carriage at the end of its return stroke. Because of this controlled deceleration, impact noise and bounce are prevented, permitting faster machine operation. The Airpot return spring quickly resets the piston for the next cycle.

In semi-conductor wafer transport mechanisms, it dampens firm posi­tioning against hard stops.

Innovative customers have taken advan­tage of the special properties provided by the Airpot piston and cylinder combina­tion to produce pumping and pressure handling devices of their own design.

For example, fitted with a hose barb, the Airpot cylinder/piston assembly can be connected to a motor or solenoid (as shown above) and used to pump air. Its low friction and inherent lubricity reduce power requirements and concerns about contamination from lubricants.

Used as a pressure sensor or flow indicator, the Airpot's inherently low friction allows response to extremely low pressures and small pressure changes. The piston can provide a mechanical output, and the glass cylinder allows visi­ble indication of piston position changes. Piston/cylinder sets can be purchased for these purposes and Airpot application engineers are available to assist customers who have these special needs.

Airpot offers reliable timing control for non-electrical systems and for electrical systems requiring non­electrical backup.

a pull damping Airpot times a switch (as shown above) which actuates a solenoid valve in response to ambient conditions. The time delay prevents short term, non-threatening signals from actuating the sprinklers, while allowing actuation if the signal persists beyond the desired time.

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Using a threaded port in place of the adjustable oriface, the Airpot is capable of acting as a pneumatic actuator,