Alemite Corporation

Paul E Okpokowuruk

A double acting pneumatic motor having a cylinder, a piston within the cylinder that divides the cylinder into two cavities that vary in volume with movement of the piston, a source of fluid under pressure, and a valve assembly for alternately directing fluid to one cavity while exhausting the other cavity to make the piston reciprocate. The valve assembly resides in a housing, and includes a cylindrical spool that moves axially between two positions with at least one enlarged diameter portion between smaller diameter portions at each end. The pneumatic motor may be provided with a cover for attenuating sound from the exhaust.

Pneumatic motor

A portable vehicle fluid drain device is disclosed. The device includes a vertical drain tube which supports a vehicle fluid drain bowl. The drain tube is manually adjusted to an elevated position, latched in place while the vehicle fluid is drained, and unlatched to descend at a rate less than that of free fall due to the use of a friction brake. The friction force imparted by the brake on the drain tube is adjusted by rotating a wing nut on a carriage bolt to squeeze the inner edges of two wishbone arms against the drain tube. A method of using a vehicle fluid drain device with a brake and a self-latching mechanism is disclosed.

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Charlotte, NC, United States of America

Paul E Okpokowuruk