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US 6,805,328 B2Granted
Shut-off valve apparatus
AssigneeMaxon Corporation
InventorsGregory T. Filkovski, Brook W. Pence, Wayne D. Morroney
Life of this patent
Estimating the term…
Abstract
A shut-off valve apparatus has a valve body and a valve member coupled to the valve body. The valve member is movable between a first position blocking material flow through the valve body and a second position permitting material flow through the valve body. A pneumatic actuator receives pressurized air to move the valve member from the first position to the second position. A pneumatic exhaust controller controls the flow of pressurized air into and out of the pneumatic actuator.
Claims42
A shut-off valve apparatus comprising
- a valve body and a valve member coupled to the valve body, the valve member being movable between a first position blocking material flow through the valve body and a second position permitting material flow through the valve body,
- a pneumatic actuator that, when actuated by pressurized air, moves and interacts with the valve member being isolated from the pressurized air to move the valve member from the first position to the second position,
- a manifold having a first portal configured to receive pressurized air, a second portal coupled to the pneumatic actuator, and an exhaust portal,
- regulator means coupled to the manifold for closing the exhaust portal in response to pressurized air being communicated to the regulator means through the first portal and for passing pressurized air to the second portal when pressurized air is communicated to the regulator means through the first portal, the pneumatic actuator being actuated by pressurized air exiting the manifold through the second portal, and
- an electrical actuator configurable between a blocking position blocking pneumatic communication between the first portal and the regulator means and an unblocking position allowing pneumatic communication between the first portal and the regulator means.
2 more elements
A shut-off valve apparatus comprising
- a main valve assembly having a valve body and a valve member coupled to the valve body, the valve member being movable between a first position blocking material flow through the valve body and a second position permitting material flow through the valve body,
- a pneumatic actuator that, when actuated, moves the valve member from the first position to the second position, and
- a controller having a manifold, a solenoid valve mounted to the manifold, and a quick-exhaust portion mounted to the manifold, the manifold being configured to permit pressurized air to flow therethrough to actuate the pneumatic actuator when the quick-exhaust portion is closed and the solenoid valve is energized, and the controller having a check valve that is openable to permit pressurized air to flow therethrough when the quick-exhaust portion is closed and the solenoid valve is de-energized.
A shut-off valve apparatus comprising
- a main valve assembly having a valve body and a valve member coupled to the valve body, the valve member being movable between a first position blocking material flow through the valve body and a second position permitting material flow through the valve body,
- a pneumatic actuator actuated by pressurized air that, when actuated, moves and interacts with the valve member being isolated from the pressurized air to move the valve member from the first position to the second position, and
- a manifold having a first portal configured to receive pressurized air, a second portal coupled to the pneumatic actuator, and an exhaust portal,
- a diaphragm movable relative to the manifold between a first position closing the exhaust portal to permit pressurized air to flow through the manifold from the first portal to the second portal and a second position opening the exhaust portal to permit pressurized air to flow through the manifold from the second portal to the exhaust portal, and
- a guide coupled to the diaphragm, the manifold having a guide-receiving passage that receives at least a portion of the guide and the guide moves within the guide-receiving passage when the diaphragm moves between the first and second positions.
2 more elements
Dependencies are inferred from the claim text.