Production Control Units, Inc.

Matthew A Smith

Randy S Robinson

Chad E McKee

Glenn C Danner

A fluid dispensing tool assembly includes an upper tool unit having an evacuation port and a fluid inlet port with fluid actuated poppet valves selectively controlling the flow through each port to a center passage within the upper tool unit. The assembly also has a lower tool unit connected to the upper tool unit by a quick-release coupler and includes a center tube member projecting into the passage and also into the inlet portion of a fluid receiving system. The tube member is shifted axially by a fluid actuated piston within the lower tool unit to form a fluid-tight seal with the inlet portion after a second coupler secures the tool assembly to the inlet portion. A fluid-tight seal may be formed between an annular seat on a plastic inlet portion of the receiving system and an annular shoulder on the tube member within the lower tool unit.

Dispensing tool assembly for evacuating and charging a fluid system

A fluid dispensing tool includes parallel spaced first and second manifolds supporting therebetween an elongated actuator unit having a tubular body confining a piston connected to move a valve actuator stem projecting into a releasable coupler mounted on the second manifold. The manifolds also support therebetween a plurality of elongated valve units each having a tubular valve body defining a valve chamber and a chamber receiving a piston connected to move an elongated valve member. Each valve body has a port for receiving a corresponding fluid supply line or an evacuation line. The first manifold has separate passages connecting air control lines to the piston chambers for moving the actuator stem and each valve member axially. The second manifold has a fluid passage connecting each valve chamber to the coupler, and a handle supports the tool and a finger actuator connected to the coupler.

Dispensing tool assembly for evacuating and/or charging a fluid system

Fuel is dispensed into a fuel tank fill tube by a hand-held tool assembly having a body with an outlet tube connected to a fuel supply passage through an air actuated control valve. Spring biased arcuate jaws surround the outlet tube and expand outwardly into engagement with an inner surface of the fill tube by an air actuated annular clamping piston surrounding the outlet tube. An air actuated annular sealing piston surrounds the clamping piston and is effective to seal the outer end of the fill tube after the fill tube is clamped. The position of the fill tube is sensed by a pin which actuates a proximity switch, and a handle and fluid line connectors projecting from the body at right angles to the outlet tube. Thumb operated control switches are located adjacent the handle.

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Dayton, OH, United States of America

Matthew A Smith