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US 12,736,151 B2Granted
Pneumatic actuator assembly for reduced dead leg
AssigneeRepligen Corporation
InventorsAnthony Mauricio Landi Adib, Patrick Lyng
Life of this patent
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Abstract
The disclosure is directed to pneumatic actuator assemblies for reduced dead leg. In one approach, an assembly may include a valve body, and a first actuator and a second actuator each coupled to the valve body by a bonnet assembly. The bonnet assembly may include a bonnet body having a first end opposite a second end, wherein the first end is connected with the valve body, and a nut threadedly connected to the second end of the bonnet body. The bonnet assembly may further include an actuator bonnet, wherein the nut partially surrounds the actuator bonnet, and wherein the actuator bonnet is rotatable about a lengthwise axis extending through a center of a stem of a piston.
Claims18
An assembly, comprising:
- a valve body having a first main side and an opposite second main side, the first main side having a top surface defining a plane;
- and
- a first actuator and a second actuator each coupled to the valve body by a respective bonnet assembly such that the first and second actuators extend from the plane defined by the top surface of the first main side;
- wherein the bonnet assembly of each of the first and second actuators comprises:
- a bonnet body having a first end opposite a second end, wherein the first end includes external threads;
- a nut threadedly connected to the second end of the bonnet body;
- and
- an actuator bonnet, wherein the nut partially surrounds the actuator bonnet, and wherein the actuator bonnet is rotatable about a lengthwise axis extending through a center of a stem of a piston;
- wherein the valve body includes first and second openings defined in the top surface, the first and second openings having internal threads for receiving the external threads of the respective first ends of the bonnet bodies of the first and second actuators;
- and
- wherein the first and second openings define respective lengthwise axes, where the lengthwise axis of the first opening is oriented perpendicular to the plane defined by the top surface of the first main side, and the lengthwise axis of the second opening is oriented at an oblique angle with respect to the plane defined by the top surface of the first main side.
8 more elements
A pneumatic actuator assembly, comprising:
- a valve body comprising a fluid passageway, the valve body having a first main side and an opposite second main side, the first main side having a top surface defining a plane;
- and
- a first actuator and a second actuator each coupled to the valve body by a bonnet assembly such that the first and second actuators extend from the plane defined by a top surface of the first main side of the valve body, wherein the bonnet assembly of each of the first and second actuators comprises:
- a bonnet body having a first end opposite a second end, wherein the first end includes external threads;
- a nut threadedly connected to the second end of the bonnet body;
- an actuator bonnet, wherein the nut partially surrounds the actuator bonnet;
- and
- a bushing within the actuator bonnet and the nut, wherein the bushing surrounds a stem of a piston, wherein the stem is biasable relative to the fluid passageway of the valve body, and wherein the actuator bonnet is rotatable about a lengthwise axis extending through a center of the stem of the piston;
- wherein the valve body includes first and second openings defined in the top surface, the first and second openings having internal threads for receiving the external threads of the respective first ends of the bonnet bodies of the first and second actuators;
- and
- wherein the first and second openings define respective lengthwise axes, where the lengthwise axis of the first opening is oriented perpendicular to the plane defined by the top surface of the first main side, and the lengthwise axis of the second opening is oriented at an oblique angle with respect to the plane defined by the top surface of the first main side.
8 more elements
A method of operating a pneumatic actuator assembly, the method comprising:
- coupling a first actuator to a valve body using a first bonnet assembly and coupling a second actuator to the valve body using a second bonnet assembly, wherein the valve body has a first main side and an opposite second main side, the first main side having a top surface defining a plane, wherein the first and second actuators extend from the plane defined by the top surface of the first main side, wherein the bonnet assembly of each of the first and second actuators comprises:
- a bonnet body having a first end opposite a second end, wherein the first end includes external threads;
- a nut threadedly connected to the second end of the bonnet body;
- an actuator bonnet, wherein the nut partially surrounds the actuator bonnet;
- and
- a bushing within the actuator bonnet and the nut, wherein the bushing surrounds a stem of a piston;
- and
- rotating the actuator bonnet about a lengthwise axis extending through a center of the piston stem to orient an air connection port of a housing of the first actuator, wherein the actuator bonnet and the housing rotates relative to the nut and to the bonnet body;
- wherein the valve body includes first and second openings defined in the top surface, the first and second openings having internal threads for receiving the external threads of the respective first ends of the bonnet bodies of the first and second actuators;
- and
- wherein the first and second openings define respective lengthwise axes, where the lengthwise axis of the first opening is oriented perpendicular to the plane defined by the top surface of the first main side, and the lengthwise axis of the second opening is oriented at an oblique angle with respect to the plane defined by the top surface of the first main side.
8 more elements
Dependencies are inferred from the claim text.