Parker-hannifin Corporation

Paul Lemay

Timothy Tyler Marquis

Shawn David Ellis

Jason Richard Koller

Leonard J Nick

Brian K Foner

Andrew J Holst

Todd Dennis Lambert

Luke Wolf

Michael R Gose

A coupling assembly () is reconfigurable among three states. In a disconnected state, a spring-biased lock indicator () is in a first lock indicator position, and the lock indicator includes a restriction member () that in the first lock indicator position retains an actuator in a first actuator position such that a valve is in a closed position and a locking pin is in a retracted position. In a connected/valve-closed state, the lock indicator () is in a second lock indicator position in which the restriction member () permits movement of the actuator (), but with the actuator () still being in the first actuator position such that the valve is in the closed position and the locking pin () is in the retracted position. In a connected/valve-open state, the lock indicator () is in the second lock indicator position to permit movement of the actuator (), and now with the actuator () being in the second actuator position such that the valve is in the open position and the locking pin () is in an extended position to lock a second coupling assembly to the coupling assembly to form a unisex coupling connection.

Unisex ball valve coupling with safety locking mechanism

An enhanced quick coupling configuration has a push-to-connect locking mechanism in which holding the outer sleeve does not affect the ability to connect the coupling, and the outer sleeve otherwise does not need to be restrained by additional components. The coupling includes a single sleeve spring in the locking mechanism, and the use of smaller restriction slots to house axially offset locking balls in a manner that axially constrains movement of the locking balls. When a male component is inserted into the female component during a connection operation, a shoulder on the male component sequentially contacts the axially offset rows of locking balls, which drive the inner sleeve axially in an inward direction. In the fully connected state, the inner sleeve is biased axially outward so as to push back against the inward locking balls, thereby preventing further movement of the inward locking balls.

Quick-coupling with automatic locking mechanism

A quick coupling assembly includes a first coupling element () and a second coupling element () that is inserted into the first coupling element. The first coupling element has a coupling body () and a valve (), which define a volume displacement passage. When the second coupling element () is inserted, the second coupling element mechanically acts on the valve () to expel contaminants from the quick coupling assembly via the volume displacement passage. The valve includes a poppet () and a biasing spring (), and the volume displacement passage includes a leak path () defined between the coupling body and the poppet. The poppet has an inward contour () that is spaced apart from the coupling body to define the leak path. The poppet has a widened portion () that provides a sealing surface when the assembly is fully coupled. The second coupling element () mechanically acts on the poppet () during insertion to expel the contaminants via the volume displacement passage.

Quick coupling with volume displacement passage

A multi-coupling system includes first and second multi-coupling components that can be connected and disconnected. When connected, opposing fluid couplers on the components are connected. The second multi-coupling component has a handle assembly including a hook retainer, and the first coupling component has a roller, and the handle assembly is rotatable to connect and disconnect the components. As the handle assembly rotates for connection, the hook retainer interacts as a single cam with the roller to pull the components together. A locking pin assembly has a locking pin that is moveable between extended and retracted positions, and when extended locks in a housing of the second component to prevent rotation of the handle assembly. A user manipulates the locking pin assembly to retract the locking pin, which is automatically retained in the retracted position. The locking pin automatically resets when the handle assembly is rotated to disconnect the multi-coupling components.

Multi-line connection quick multi-coupling

A coupling manifold assembly has both regulated and unregulated flow orientations and includes a manifold body and a pressure regulator couplably received into the manifold body. The manifold body includes a pair of connection ports between which flow is movable through the manifold body, with the pressure regulator being received into a flow path between the connection ports. The pressure regulator is configured to regulate flow in a first direction between the connection ports and to allow for unregulated flow in an opposite second direction between the connection ports.

Pressure regulated coupling manifold assembly

A coaxial couplingincludes a female coupling halfand a male coupling half. The couplingis used in a hydraulic circuitthat includes a multistage hydraulic pumpand a hydraulic machine. The coupling is used in the circuitto connect components when the pump is running. The coupling halves have a disconnected configuration (FIG.), a connection initiation configuration (FIG.), and a fully connected configuration (FIG.). Coupling halfincludes a manually actuated restrictorthat signals the pumpto move to a low flow condition independently of load demand from the machinein the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.

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Shoreview, MN, United States of America

Paul Lemay