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公开(公告)号：US20150267838A1
公开(公告)日：2015-09-24
申请号：US14660685
申请日：2015-03-17
发明人： George W. Gassman
IPC分类号： F16K31/42
CPC分类号： F16K31/42 , F15B5/003 , F16K31/0672 , F16K31/0675 , F16K31/0682
摘要： A transducer for a connection to a fluid pressure source having a mechanism for setting a pneumatic output by way of an electrical input signal. The transducer provides a lower housing assembly and an upper housing assembly. The lower housing assembly comprises lower housing configured to receive a supply nozzle. The supply nozzle fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The lower housing further comprises an exhaust nozzle fluidly communicating with an exhaust port and intermittently fluidly communicates with the output port of the lower housing through the internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle and the exhaust nozzle of the lower housing assembly.
摘要翻译： 用于连接到流体压力源的换能器，其具有通过电输入信号设定气动输出的机构。 换能器提供下壳体组件和上壳体组件。 下壳体组件包括构造成接收供应喷嘴的下壳体。 供应喷嘴与供给口流体连通，并且通过内部流体通道与下部壳体的输出端口间歇地流体连通。 下壳体还包括与排气口流体连通的排气喷嘴，并通过内部流体通道与下壳体的输出端口间歇地流体连通。 上壳体组件包括构造成接收线圈和电枢的上壳体，使得上壳体，线圈和电枢限定了闭锁电磁回路，其提供电枢与供电喷嘴和下壳体组件的排气喷嘴的交替接触 。
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公开(公告)号：US11658603B2
公开(公告)日：2023-05-23
申请号：US17667226
申请日：2022-02-08
发明人： George W. Gassman
IPC分类号： H02P29/028 , H02P29/032 , F04B53/10 , H02P27/08
CPC分类号： H02P29/028 , F04B53/108 , H02P27/08 , H02P29/032
摘要： A digital positioner for a valve includes a valve controller configured to obtain a set point value for a valve travel of a valve, and generate a pulse-width modulated current signal based on the set point value. The digital positioner also includes a current-to-pressure converter configured to receive the pulse-width modulated current signal from the valve controller, convert the pulse-width modulated current signal to a pulse-width modulated pressure signal, and provide the pulse-width modulated pressure signal to a pneumatic actuator in the valve to adjust a position of the valve.
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公开(公告)号：US11368120B2
公开(公告)日：2022-06-21
申请号：US16881798
申请日：2020-05-22
发明人： George W. Gassman
IPC分类号： H02P29/028 , H02P29/032 , F04B53/10 , H02P27/08
摘要： A digital positioner for a valve includes a valve controller configured to obtain a set point value for a valve travel of a valve, and generate a pulse-width modulated current signal based on the set point value. The digital positioner also includes a current-to-pressure converter configured to receive the pulse-width modulated current signal from the valve controller, convert the pulse-width modulated current signal to a pulse-width modulated pressure signal, and provide the pulse-width modulated pressure signal to a pneumatic actuator in the valve to adjust a position of the valve.
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公开(公告)号：US20170299084A1
公开(公告)日：2017-10-19
申请号：US15639998
申请日：2017-06-30
发明人： George W. Gassman
摘要： An electropneumatic switch valve includes a pneumatic circuit to a pressurized fluid source, an electromagnetic circuit coupled to the pneumatic circuit, and a control module connected to the electromagnetic circuit. The control module provides a first control signal inducing a first state of the pneumatic circuit, a second control signal inducing a second state of the pneumatic circuit, a third control signal inducing a third state of the pneumatic circuit, and a fourth control signal inducing a fourth state of the pneumatic circuit.
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公开(公告)号：US20220166366A1
公开(公告)日：2022-05-26
申请号：US17667226
申请日：2022-02-08
发明人： George W. Gassman
IPC分类号： H02P29/028 , H02P29/032 , F04B53/10 , H02P27/08
摘要： A digital positioner for a valve includes a valve controller configured to obtain a set point value for a valve travel of a valve, and generate a pulse-width modulated current signal based on the set point value. The digital positioner also includes a current-to-pressure converter configured to receive the pulse-width modulated current signal from the valve controller, convert the pulse-width modulated current signal to a pulse-width modulated pressure signal, and provide the pulse-width modulated pressure signal to a pneumatic actuator in the valve to adjust a position of the valve.
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公开(公告)号：US10352474B2
公开(公告)日：2019-07-16
申请号：US15639903
申请日：2017-06-30
发明人： George W. Gassman , Curt Galbreath
摘要： A transducer with a lower housing assembly and an upper housing assembly is for connection to a fluid pressure source having a mechanism for setting a pneumatic output via an electrical input signal. The lower housing assembly comprises lower housing configured to receive a supply nozzle, which fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The lower housing further comprises an exhaust nozzle fluidly communicating with an exhaust port and intermittently fluidly communicates with the output port of the lower housing through the internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle and the exhaust nozzle of the lower housing assembly.
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公开(公告)号：US20170299083A1
公开(公告)日：2017-10-19
申请号：US15639903
申请日：2017-06-30
发明人： George W. Gassman , Curt Galbreath
CPC分类号： F16K31/42 , F15B5/003 , F15B5/006 , F15B2211/8752 , F15B2211/88 , F16K31/0603 , F16K31/0624 , F16K31/0672 , F16K31/0675 , F16K31/0682 , Y02P80/13
摘要： A transducer with a lower housing assembly and an upper housing assembly is for connection to a fluid pressure source having a mechanism for setting a pneumatic output via an electrical input signal. The lower housing assembly comprises lower housing configured to receive a supply nozzle, which fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The lower housing further comprises an exhaust nozzle fluidly communicating with an exhaust port and intermittently fluidly communicates with the output port of the lower housing through the internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle and the exhaust nozzle of the lower housing assembly.
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公开(公告)号：US09726299B2
公开(公告)日：2017-08-08
申请号：US14660685
申请日：2015-03-17
发明人： George W. Gassman
CPC分类号： F16K31/42 , F15B5/003 , F16K31/0672 , F16K31/0675 , F16K31/0682
摘要： A transducer for a connection to a fluid pressure source having a mechanism for setting a pneumatic output by way of an electrical input signal. The transducer provides a lower housing assembly and an upper housing assembly. The lower housing assembly comprises lower housing configured to receive a supply nozzle. The supply nozzle fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The lower housing further comprises an exhaust nozzle fluidly communicating with an exhaust port and intermittently fluidly communicates with the output port of the lower housing through the internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle and the exhaust nozzle of the lower housing assembly.
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公开(公告)号：US20210367548A1
公开(公告)日：2021-11-25
申请号：US16881798
申请日：2020-05-22
发明人： George W. Gassman
IPC分类号： H02P29/028 , H02P27/08 , F04B53/10 , H02P29/032
摘要： A digital positioner for a valve includes a valve controller configured to obtain a set point value for a valve travel of a valve, and generate a pulse-width modulated current signal based on the set point value. The digital positioner also includes a current-to-pressure converter configured to receive the pulse-width modulated current signal from the valve controller, convert the pulse-width modulated current signal to a pulse-width modulated pressure signal, and provide the pulse-width modulated pressure signal to a pneumatic actuator in the valve to adjust a position of the valve.
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公开(公告)号：US10473230B2
公开(公告)日：2019-11-12
申请号：US15639998
申请日：2017-06-30
发明人： George W. Gassman
摘要： An electropneumatic switch valve includes a pneumatic circuit to a pressurized fluid source, an electromagnetic circuit coupled to the pneumatic circuit, and a control module connected to the electromagnetic circuit. The control module provides a first control signal inducing a first state of the pneumatic circuit, a second control signal inducing a second state of the pneumatic circuit, a third control signal inducing a third state of the pneumatic circuit, and a fourth control signal inducing a fourth state of the pneumatic circuit.
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