Other

Appleton Electric Company

James G Johnson

John Leslie Johnson

Nabil L Mina

A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.

Double action direction fluid flow valve

A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selectively pressurize and exhaust an outlet port connected to a fluid device and configured in groupings permitting varying valve functionalities.

Valve manifold

Double action directional fluid flow valve

Valve Manifold

A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selective pressurize and exhaust an outlet port connected to a fluidic device and configured in grouping permitting varying valve functionalities.

Pilot valve manifold

A leak detection system includes a valve assembly having poppet valves disposed in a valve body for selectively closing internal ports for sequentially pressuring a test part from a pressure source, isolating the test part, determining the leakage conditions at the test part and exhausting the test part at completion of the test.

Leak detection system

An actuator means for an electrical switch concealed in a housing and operated by a handle externally mounted to the cover thereof, whereby, upon closing the cover, the actuator automatically moves in a rectilinear direction to locate the toggle operating lever of the switch and rotatably moves the externally viewed handle to preposition it to indicate the energization state of the switch. Alternatively, the actuator permits operation of the switch by rotating the externally accessible handle. This invention is especially suited to circuit breaker switches contained in explosion-proof or hazardous location-rated enclosures.

Self-locating, prepositioning actuator for an electrical switch enclosure

An interlock mechanism operably associated with the plug receptacle of an explosion-proof housing whereby a plug may be inserted into or removed from the receptacle only when electrical current is not delivered to the receptacle. The interlock mechanism comprises a safety shaft for engaging a plug inserted into the receptacle, a reciprocating shaft operatively connected to a circuit breaker handle, and a locking pin for securing the safety shaft in a standby position, whereby the circuit breaker handle cannot be moved unless the safety shaft engages the plug casing, the safety shaft cannot be disengaged from the plug casing unless the circuit breaker handle has been moved to an off position, and the safety shaft will not engage the plug casing until it is released by the locking pin after the locking pin is biased to its disengaged position by the inserted plug.

Growing community of inventors

Knotts Island, NC, United States of America

James G Johnson