Abstract: A two-way control valve arrangement for selectively opening a first passageway to either one of a second passageway and a third passageway, wherein a housing structure is provided having a valve body opening with circular sidewall and a base portion intersecting the first, second and third passageways; a valve body secured within the valve body opening, and a piston with a plunger at the end thereof reciprocally disposed within a piston cylinder extending axially through the valve body, the piston being reciprocal to either bias against the valve body to close the piston cylinder therethrough and accordingly the second passageway, or to bias against the base portion of the valve body opening to close the third passageway.

Abstract: In a centrifugal separator for separating a liquid from a compressed gas, a baffle is provided to separate the centrifugal chamber into an upper sub-chamber and a lower sub-chamber but does not contact the walls of the chamber thereby being insufficient to prevent downward flow of separated liquid along the interior wall of the two sub-chambers, and insufficient to prevent flow of compressed gas from one sub-chamber to the other sub-chamber, the baffle nevertheless being sufficient to prevent turbulent gas flow in the lower sub-chamber when collected liquid is drained therefrom.

Abstract: A two-way control valve arrangement for selectively opening a first passageway to either one of a second passageway and a third passageway, wherein a housing structure is provided having a valve body opening with circular sidewall and a base portion intersecting the first, second and third passageways; a valve body secured within the valve body opening, and a piston with a plunged at the end thereof reciprocally disposed within a piston cylinder extending axially through the valve body, the piston being reciprocal to either bias against the valve body to close the piston cylinder therethrough and accordingly the second passageway, or to bias against the base portion of the valve body opening to close the third passageway.

Abstract: An air dryer includes two desiccant chambers, a control system and a cover member into which a shuttle valve mechanism has been incorporated. Secured atop the chambers, the cover member defines an outlet port, first and second passages, and a horizontal chamber between the passages in which a shuttle valve can be moved reciprocatingly. The horizontal chamber has two ends, a first interconnected to the first desiccant chamber by the first passage and a second interconnected to the second desiccant chamber by the second passage. The outlet port of the dryer extends from the horizontal chamber. Governing the flow of air into and out of the dryer, the control system periodically switches the incoming flow of untreated air between the two desiccant chambers. The control system thus determines which desiccant chamber will operate in a drying mode, with the other being operated in a purge mode.

Abstract: A desiccant media containing cartridge for use in a gas drying apparatus adapted to firstly function in a gas drying cycle in which a moist gas is permitted to pass upwardly through said desiccant media whereby at least a portion of the moisture is removed from said gas, and adapted to secondly function in a desiccant media purge cycle in which a portion of said dried gas is allowed to pass back downwardly through said desiccant media to absorb moisture therefrom thereby at least partially regenerating said desiccant media, including a means for concentrating the desiccant purge cycle at the bottom of the desiccant media, which means comprise a purge tube extending vertically partially through the desiccant media, and a flapper valve adjacent to an upper end of the purge tube adapted to close and restrict flow of gas through the purge tube when the gas is flowing upwardly in during the gas drying cycle and to open and promote gas flow through the purge tube when the gas is flowing downwardly during the desicc

Abstract: An aftercooler apparatus condenses vapor in untreated gas discharged from a compressor of a gas drying system. The apparatus includes a radiator, a bypass line and a bypass valve. The radiator features a first inlet, a second inlet and an outlet. The first inlet connects to the compressor from which it receives the untreated gas. The outlet connects to the next component in the gas drying system. The radiator condenses the vapor suspended in the untreated gas and passes aftercooled gas resulting therefrom via its outlet to the next component. The bypass line, through which the untreated gas may flow, connects at one end between the compressor and the first inlet and at another end to the second inlet. The bypass valve senses the difference in pressure between the first inlet and the outlet. The bypass valve also controls the flow of the untreated gas in response to the difference in pressure.

Abstract: A twin tower air drying system for cleaning and drying a stream of unpurified pressurized air including a centrifugal separator having a baffle horizontally disposed therein to generally separate the centrifugal chamber into an upper sub-chamber and a lower sub-chamber; a pair of cavities each containing desiccant media and a purge tube with a flapper valve thereover to close and restrict flow of air through the purge tube when air is flowing upwardly through the cavity, and to open and promote air flow through the purge tube when air is flowing downwardly through the cavity; a pair of two-way control valves to either deliver a stream of air from the centrifugal separator to a cavity or to open a cavity to atmosphere; a timer control for alternately and periodically altering the condition of the two-way control valves such that when one is delivering air to a cavity, the other is open to atmosphere; a shuttle valve for admitting an output percentage of air emerging from either of the cavities to a storage cha

Abstract: A shuttle valve mechanism for a twin tower, desiccant containing compressed air cleaning and drying system housed within a rectangular cover member attachable over desiccant containing chambers to form a closure thereover with a slide valve chamber therein containing a reciprocal valve member with passageways interconnecting the two ends of the slide valve chamber with the two desiccant containing chambers. The reciprocal valve member is provided with an aperture to permit a purge percentage of the air dried in one chamber to be admitted into the other chamber to effect a purge cycle whereby the purge percentage will remove moisture from the desiccant.

Abstract: An energy collector allows flow of electrical energy between a vehicle and a rail of a railway track. The energy collector includes a vehicle mounting device for mounting the energy collector to such vehicle; a collector shoe for sliding electrical contact on such rail; and a lever arm having a first end and a second end. The energy collector also includes a bottom torsion unit connected to the collector shoe and connected to the second end of the lever arm. The bottom torsion unit is disposed so that the collector shoe is forcefully and generally aligned upon such rail even as the collector shoe encounters physical deviations along a surface of such rail. The energy collector further includes a top torsion unit connected to the vehicle mounting device and connected to the first end of the lever arm.