US3808895A - Electric fail-safe actuator - Google Patents

Electric fail-safe actuator Download PDF

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Publication number
US3808895A
US3808895A US00331191A US33119173A US3808895A US 3808895 A US3808895 A US 3808895A US 00331191 A US00331191 A US 00331191A US 33119173 A US33119173 A US 33119173A US 3808895 A US3808895 A US 3808895A
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Prior art keywords
motor
valve
output shaft
electric
spring
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Expired - Lifetime
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US00331191A
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English (en)
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J Fitzwater
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Individual
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Individual
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Priority to US00331191A priority Critical patent/US3808895A/en
Priority to GB530074A priority patent/GB1465407A/en
Priority to SE7401649A priority patent/SE410801B/xx
Priority to DE19742406176 priority patent/DE2406176A1/de
Priority to FR7404409A priority patent/FR2217613B1/fr
Priority to JP1613574A priority patent/JPS5334005B2/ja
Application granted granted Critical
Publication of US3808895A publication Critical patent/US3808895A/en
Priority to US05/626,723 priority patent/USRE30135E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/56—Mechanical actuating means without stable intermediate position, e.g. with snap action
    • F16K31/563—Mechanical actuating means without stable intermediate position, e.g. with snap action for rotating or pivoting valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Definitions

  • ABSTRACT An electrically operated fail-safe valve actuator em- I ploys a spring which is wound to store energy during operation of the electric drive motor, an electric clutch operable to disengage the drive motor from the actuator output shaft in response to loss of power from the electrical supply whereby the spring drives the valve in the opposite direction.
  • Clark One type of actuator which has found advantageous use in the aforementioned applcation is disclosed by Malcolm D. Clark in his US. Pat. No. 3,572,163, granted Mar. 23, 1971 and assigned to Raymond Control Systems, Inc. Although this valve actuator has proven advantageous in many application, it primarily depends upon the availability and integrity of electrical power supply for operation. In recognizing that outages occur, and that it may be necessary to operate a valve during a power failure, Clark provided his actuators with means for electrically disconnecting the electric motor and mechanically disengaging the motor from the output shaft connected to the valve, and means for manually operating the actuator. Although service personnel are alerted of the necessity for manual operation of the valve by means of monitoring devices, loss of fuel and/or pollution could occur between the time a service man is alerted to operate the'valve and the time that the valve is actually manually operated.
  • Another object of the invention is to provide an automatic fail-safe valve actuator which does not rely on an I external source of energy for fail-safe operation.
  • Another object of the invention is to provide an electrically operated fail-safe valve actuator which drives a valve in one direction toward a predetermined valve setting and which automatically responds, in a fail-safe manner, to a loss of electrical power to drive the valve in the opposite direction toward a predetermined setting at any time during driving of the valve in the first mentioned direction.
  • An electric fail safe valve actuator includes an actuator output shaft which extends from an actuator housing and is connected with the stem of a valve to be operated.
  • the actuator output shaft is coupled to an output shaft of a prime mover system by means of an electrically operated spring type clutch mechanism.
  • the prime mover system and the clutch mechanism are enclosed within a housing with the prime mover system generally located in one compartment of the housing and the clutch mechanism generally located in another compartment of the housing.
  • a coil spring is connected to the actuator output shaft and to the housing and is disposed about the output shaft and the clutch mechanism.
  • the coil spring is wound to store energy.
  • the clutch mechanism which is electrically connected in shunt across the prime mover system, the spring releases its energy to drive the valve in the opposite direction, for example toward a completely closed setting.
  • FIG. 1 is a sectional elevational view of an electrically operated fail-safe valve actuator, shown connected to a valve;
  • FIG. 2 is a sectional view of the apparatus illustrated in FIG. 1 taken generally along the parting line IIII;
  • FIG. 3 is a sectional view of the apparatus illustrated in FIG. 1, taken generally along the parting line Ill-III;
  • FIG.4 is a sectional view taken along the same parting line IIIIII, in FIG. 1 as was FIG. 3, but showing the position of certain portions of the apparatus because of pre-winding of the spring motor;
  • FIG. 5 is a fragmentary sectional view of a portion of the apparatus illustrated in FIG. 1, showing the positions of the respective elements with the clutch mechanism disengaged;'
  • FIG. 6 is a sectional view of a portion of the apparatus illustrated in FIG. 2 and generally taken along the parting line VIVI; and 1
  • FIG. 7 is a schematic circuit diagram of a valve actuator constructed in accordance with the principles of the present invention.
  • an electrically operated actuator is generally illustrated at 10 as connected to a valve 12.
  • the actuator 10 includes an actuator housing 26 which comprises a housing shell 28 and a housing shell 30.
  • a center wall 32 generally divides the housing into two compartments, 78 and 79.
  • the compartment 78 may be considered as the motor compartment, or the electric motor compartment, and the compartment 79 may be considered as the clutch compartment and/or the spring motor compartment.
  • the compartment 78 includes a mounting plate 34 on which is mounted an electric motor 36 having an output shaft 38 which extends through an aperture 42 in the mounting plate 34.
  • the output shaft 38 has a pinion which is connected by way of a gear train 40 to a gear 44 securely mounted on a shaft 46.
  • the shaft 46 may therefore also be considered as the motor output shaft, or as the output shaft for the electric motor prime mover system.
  • the shaft 46 is rotatably mounted in the mounting plate 34 by means of a bearing 48, and rotatably mounted in the center wall 32 by means of a bearing 50.
  • the mounting plate 32 also carries a terminal block 52 which is mounted on the mounting plate 34 by means of a terminal block mount 54 and machine screws 56.
  • the actuator further includes a threaded bore 58 for receiving therethrough an electrical cable 60 which is fastened to the housing by means of a cable connector 62, the cable 60'and the connector 62 being illustrated in phantom.
  • the shaft 46 includes a bore 71 which rotatably receives therein a shaft 70, which functions as a cam shaft.
  • the cam shaft 70 carries a plurality of cams, two cams 64, 66 being illustrated in this particular exemplary embodiment.
  • the cams 64, 66 are operatively associated with a pair of switches 72, 74 (FIG. 2) which function as limit switches and signaling-switches, which will be discussed in greater detail below.
  • the electric motor 36 is provided with a brake 76, which will also be discussed in greater detail later on. It should be noted that the center wall 32 and the mounting plate 34 effectively define a compartment or sub-compartment for housing the gear train 40. Inasmuch as the apparatus just described is essentially the same as that disclosed in the aforementioned Clark patent, with the exception of manual operation, the same will not be treated in further detail herein, but is fully incorporated herein by reference.
  • the actuator output shaft 82 is secured to a spring mount 84 for mutual rotation.
  • the actuator output shaft 82 includes acircular flange 104 having a plurality of threaded bores therein which are aligned with counterbores 108 in the spring mount 84.
  • the aligned bores receive machine screws 110 for affixing these elements together.
  • the spring mount 84 is rotatably connected through a bottom wall 90 of the shell 30 by means of a bearing 86 positioned within a bore 88.
  • the bearing 86 is sealed by means of a seal 92. It should be noted that the apparatus illustrated in FIG. 1 may be rendered suitable for protection against the elements and for explosion proof operation by the provision of the suitable seals between the housing shells 28, 30.
  • the outwardly extending end 94 of the shaft 82 is received in a slot 96 of a coupling 97 which has a slot 99 orthogonal thereto for receiving flats 100 of the valve stem 24 for aligning the actuator and the valve.
  • a mounting bracket 101 is provided and a plurality of screws 102 secure the actuator and valve.
  • the spring mount 84 includes a flat surface 118 which bears upon a thrust pad 120 and a selflubricating type such as Teflon, which in turns rests upon the inner surface of the end wall 90.
  • the shaft 46 includes a shoulder 114 which bears against the end of the bearing 50 and a surface 1 16 of the center wall 32. With the upper end of the shaft82 adjacent the lower end of the shaft 46, as shown in FIG. 1, there is therefore little axial movement of these shafts.
  • an electric clutch 124 is provided.
  • the clutch 124 comprises an electromagnetic coil 126 having a pair of leads 128 for connection to an electrical supply.
  • the leads 128 have been cut short and, although not shown in FIG. v1, normal extent upwardly through a bore 130 in the center wall 32 for connection to the terminal block 52.
  • the electromagnetic coil 126 is carried on a mounting plate 132 which, in turn, is rigidly suspended from the center wall 32 by a plurality of mounting studs 134.
  • the clutch 124 is further provided with an armature including an armature bearing 136 which receives the shaft 82 therein for relative rotary and axial movement, an armature member 138 secured to one end of and carried by the armature bearing 136, and an armature member 140 secured to and carried by the other end of the armature bearing 36.
  • the armature member 140 includes a surface which is disposed at an angle to the shaft 82, both radially and axially; the purpose of this surface becoming evident below.
  • the armature member 140 is biased away from a member 148 by means of a plurality of bias springs 144 disposed in respective bores 146.
  • the member 148 is keyed to the shaft 82 by means of a key 150 and therefore rotates with the shaft 82.
  • the upper end of the member l48 extends into a cup-shaped end of the shaft 46 defined by a surface 152 anda bearing 154.
  • a flat spring 156 is carried about the lower outer surface of the shaft 46 and clearing the member 148 one end fixed to the shaft 46 at 147.
  • the armature member 138 With the electromagnetic coil 126 energized, the armature member 138 is attracted toward the coil and moves the entire armature assembly upwardly, as illustrated in the drawing, to force the surface 142 against the spring 156 and causes the spring to grip the member 148. This action effects a coupling between the shaft 82 and the shaft 46. Energization of the motor 36 therefore causes rotation of the valve stem 24 by way of the gear'train 40, the shaft 46 and the shaft 82.
  • the spring 158 is a coil spring disposed within the chamber 79 generally defined by the housing shell 30.
  • the coil spring has one end 162 located in a groove in the spring mount 84 and the other end 164 located in a similar groove 166 in the center wall 32. It is readily apparent that the energy stored in the spring is released upon deenergization of the electromagnetic coil 126 so that the spring 158 acts as a motor to drive the valve 12 in the opposite direction.
  • FIG. 1 illustrates the actuator with the clutch 124 operated to engage the shafts 46 and 82.
  • FIG. 5' illustrates the clutch 124 in a deenergized condition whereby the shafts 46 and 82 are disengaged.
  • action can drive the valve to an extreme position opposite to that driven toward by the electric motor 36, the spring 158 is free-wound during assembly.
  • a relative rotation of the shaft 82 and the center wall 32 is provided to wind the spring.
  • a winding of 166 provided 600 lb.in.
  • the spring mount 84 includes an arcuate slot 168 for receiving a pin 170 which extends from the end wall 90 of the housing shell 30. With the relative rotation of parts, the pin 170 links the elements for winding to store sufficient energy in thespring 158 (300 lb.
  • a brake 76 (FIGS. 1, 2 and 6) is provided to hold the valve in the desired position upon deenergization of the electric motor 36.
  • the brake 76 comprises a solenoid 174 carried by a mounting bracket 176 which is, in turn, fixed, to the mounting plate 34 by means of screws 178.
  • the solenoid 174 includes a pair of electrical leads 180 for extension and connection to the terminal block 52.
  • the brake 76 further includes an extensible member 182 which moves into and out of the solenoid 174 upon energization and deenergization of the. solenoid.
  • a pivot plate 184 is secured to the motor and bell 188 by means of machine screws 186.
  • the pivot plate 184 includes a downturned arm 190 and an upturned arm 192.
  • a pivot arm 194 is pivotally connected to the arm 190 by a pivot pin 196 and is pivotally connected to the extensible member 182 at 198, for example by means of a cotter pin.
  • FIG. 6 it is readily apparent that a downward movement of the extensible member 182 causes counterclockwise rotation of the pivot arm 194 about the pivot 7 otally connected to the pivot plate 184 by means of a pivot pin 204 to move the pivot plate clockwise as viewed in FIG.
  • a brake band 208 is connected at its opposite ends to brake band pins'2l0, 212, respectively, which are carried by the pivot plate 202.
  • the brake band 208 surrounds a brake drum 214 and is normally biased by the spring 206 to tighten about the brake band 214; the brake band 214 being carried by an end 216 of the electric motor shaft. Clockwise movement of the pivot plate 202, however, releases the brake so that the electric motor 36 is able to drive the valve 12. Therefore, energization of the motor 36 and energization of the solenoid 174 occur at the same time. Deenergization of the motor at the desired valve setting is accompanied by a complementary deenergization of the solenoid 174 to brake the motor and hold the valve in the desired position.
  • FIG. 7 schematically illustrates the circuit of the actuator 10.
  • the circuit comprises a pair of input terminals 218, 220 for receiving power from a commercial alternating current supply, such as 120V, 60 Hz.
  • the terminal 218 is connected to a pair of motor windings 228 and 230 and to one terminal of the clutch electromagnetic coil 126.
  • the terminal 220 is connected to the other terminal of the clutch electromag netic winding 126 by way of a switch 222 which may be an on/off control switch mounted at a remote console.
  • the switch 222 is connected to a movable contact of a cam operated switch 74 (see FIG.
  • a switch 72 which is operated by a cam 66 also carried by the shaft 70.
  • the switch 72 is connected to a pair of output leads 224, 226 which may be extended to a power supply and signal lamp to indicate valve position.
  • a number of such switches and associated operative cams may be-provided to indicate 'valve positions intermediate fully closed and fully opened so that service personnel can monitor the intermediate positions of the valve.
  • a plurality of switches 222 could be connected to the clutch and motor along with a plurality of switches, such as switch 74, to selectively drive the valve to intermediate valve positions.
  • leakage paths would be obviated by the use of mechanical lockout switches or the like in connection with the electromagnetic coil 126.
  • an automatic fail-safe electrically operated valve actuator which responds to a loss of electrical energy to the actuator to drive the valve to a predetermined valve setting, for example to a completely closed condition.
  • the actuator described has shown to be completely fail-safe in that automatic return of the valve to the predetermined setting will occur whether the valve has been locked at a certain desired setting, or is in the process of being driven toward a desired setting.
  • An electrically operated valve, actuator comprising:
  • An electrically operated valve actuator for connection to an electrical sup- P y; means for connecting said motor to a valve for drivingthe valve in one direction, including electric clutch means for connection to the electrical supply and normally energized to connect said motor in driving engagement with the valve and deenergized in response to loss of power from the electrical supply to disengage the valve from said motor; and energy storage means for connection to the valve responsive to the operation of said motor to store energy and responsive to disengagement of said motor from the valve to drive the valve in the opposite direction.
  • switch means operated in response to a predetermined number of revolutions of said motor to disconnect said motor from the electrical supply
  • An electrically operated valve actuator according to claim 2, wherein said brake means includes an electromagnetic device for connection to the electrical supply and normally energized with said motor to a nonbraking condition.
  • valve actuatorot the type having an electric motor for connection to and driving a valve toward a first predetermined condition and a limit switch for opening the powering-circuit of the motor when the valve has reached the first predetermined condition, the improvement comprising:
  • coupling means for connection to the power supply for the motor and interposed between the motor and the valve, said coupling means including means normally engaged between the valve and the motor and responsive to a loss of power from the power supply to disengage the motor and the valve;
  • energy storage means for connection to the valve and engaged with the motor by said means which normally causes engagement between the motor and the valve, said energy storage means storing energy upon driving of the valve toward the first predetermined condition and responsive to disengagement to drive the valve toward a second predetermined condition.
  • An electrically operated valve actuator comprising:
  • said motor means including an electric motor, an output shaft and switch means including contacts connected between said motor and the electrical supply, said switch means coupled to said output shaft and operated upon a predetermined number of revolutions thereof to disconnect said motor from the electrical supply;
  • An electrically operated valve actuator for connection to the valve and operated to store energy upon operation of the valve in one direction; and electric clutch means connected between said motor and the valve and electrically connected to the electrical supply, said clutch means operable to disengage said motor from the valve in response to loss of power from the electrical supply whereupon said energy storage means becomes effective to drive the valve in the opposite direction.
  • said electric clutch means including aclutch winding for connection to the electrical supply, a clutch armature mounted for axial movement with respect to said motor output shaft and said output shaft upon energization and deenergization of said clutch winding, and spring means carried by one of said shafts and disposed about both of said shafts, said spring means urged by said clutch armature to frictionally embrace the other of said shafts for driving engagement with said one shaft upon energization of said clutch winding.
  • said clutch armature includes a central bore which receives said actuator output shaft therethrough and a surface disposed at an angle to the 1 axis of said actuator output shaft to engage and urge said spring means axially and radially inwardly against said actuator output shaft.
  • said clutch armature includes a bearing carried on and slidable axially along said actuator output shaft, a first armature portion mounted at one end of said bearing and a second armature portion mounted at the other end of said bearing and carrying said surface for engagement with said spring means.
  • An electrically operated valve actuator comprismg:
  • an actuator housing including first and second end walls, sidewalls and compartment wall dividing said housing into a motor compartment and a clutch compartment; electric motor means mounted in said motor compartment for connection to an electrical supply to drive a valve, said motor means including an electric motor, a motor output shaft and switch means including contacts interposed between said motor and the electrical supply, said switch means coupled to said motor output shaft and operated upon a predetermined number of revolutions thereof to disconnect said motor from the electrical supply;
  • energy storage means mounted in said clutch department and connected between said actuator housing and said actuator output shaft, said energy storage means operated to store energy upon operation of the valve in one direction;
  • electric clutch means mounted in said clutch compartment for connecting said motor output shaft to said actuator output shaft, said electric clutch means electrically connected to the electrical supply and operable to disengage said motor output shaft and said actuator output shaft in response to loss of power from the electrical supply whereupon said energy storage means drives the valve in the opposite direction.
  • An electrically operated valve actuator according to claim 10, wherein said actuator output shaft and said motor output shaft are mounted for rotation and have the same axis of rotation, and wherein said electric clutch means includes a clutch winding forconnection to the electrical supply, a clutch armature mounted for movement along the axis of rotation of said shafts, and spring means carried about said motor output shaft and said actuator output shaft for causing engagement and disengagement between said shafts in response to movement of said clutch armature.
  • said clutch armature includes a bore for receiving said actuator output shaft therethrough, and having at least one surface disposed at an angle to the axis of said shafts to engage and urge said spring means axially and radially inwardly with respect to said shafts.
  • spring motor means interposed between the electric motor means and the valve and operated to store energy upon driving of the valve by the electric motor means; and electric clutch means connectible with the electric motor means to the electrical supply and energizible with the electric motor means to engage the electric motor means and said spring motor means and deenergizible upon a loss of power from the electrical supply to disengage v the electric motor means and said spring motor means, whereupon said spring motor means is operable to drive the valve in the direction opposite to that driven by the electric motor means.
  • said spring motor means comprises:
  • said electric clutch means comprises:
  • An electric fail-safe valve actuator for connection to a valve, comprising:
  • an electric motor for driving the valve in one direction; a spring motor, wound by said electric motor, for
  • An electric fail-safe actuator according to claim 17, comprising:
  • a rotatably mounted output shaft for connection to the valve; and a spring mounted about said spring motor output shaft, said spring having a first end fixed to said housing and a second end fixed to said output shaft.
  • said spring motor comprises:
  • said electric clutch comprises:
  • said means responsive to the energization of said coil comprises:
  • a clutch spring carried by said electric motor output shaft and disposed about both of said motor shafts, said clutch spring being urged by said armature to couple said shafts for mutual rotation upon energization of said coil.
  • said spring motor output shaft comprises;
  • said actuator further comprises:
  • a limit switch disposed in said one compartment for operation by said cam when said valve is at a predea brake band about said brake drum biased to a braking condition
  • a bias spring connected between said first and second plates to bias said second plate to tighten said band about said drum.
  • An electric fail-safe valve actuator according to claim 26, wherein said first plate includes an arm extending at a right angle to the plate generally parallel to the side of said electric motor and pivotally mounting said third plate.
  • An electric fail-safe valve actuator for connection to avalve comprising:
  • An electrically operated actuator for operating a device from one position to another comprising:
  • an electric motor for connection to an electrical sup- P y; means for connecting said motor to the device for driving the device in one direction, including electric clutch means for connection to the electrical supply and normally energized to connect said motor in driving engagement with the device and deenergized in response to loss of power from the.
  • energy storage means for connection to the device responsive to the operation of said motor to store energy and responsive to disengagement of said motor from the device to drive the device in the opposite direction.
  • an actuator of the type having an electric motor for connection to and driving a device toward a first predetermined position and a limit switch for opening the powering circuit of the motor when the device has reached the first predetermined position, the improvement comprising:
  • coupling means for connection to the power supply for the motor and interposed between the motor v and the device said coupling means including means normally engaged between the device and the motor and responsive to a loss of power from the power supply to disengage the motor and the device;
  • energy storage means for connection to the device and engaged with the motor'by said means which normally causes engagement between the motor and the device, said energy storage means storing energy upon driving of the device toward the first predetermined condition and responsive to disengagement to drive the device toward a second predetermined position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Braking Arrangements (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
US00331191A 1973-02-09 1973-02-09 Electric fail-safe actuator Expired - Lifetime US3808895A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00331191A US3808895A (en) 1973-02-09 1973-02-09 Electric fail-safe actuator
GB530074A GB1465407A (en) 1973-02-09 1974-02-05 Actuators
SE7401649A SE410801B (sv) 1973-02-09 1974-02-07 Elmotordrivet ventilmanoverdon
DE19742406176 DE2406176A1 (de) 1973-02-09 1974-02-08 Elektrisch betaetigter schieberantrieb
FR7404409A FR2217613B1 (fr) 1973-02-09 1974-02-08
JP1613574A JPS5334005B2 (fr) 1973-02-09 1974-02-08
US05/626,723 USRE30135E (en) 1973-02-09 1975-10-29 Electric fail-safe actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00331191A US3808895A (en) 1973-02-09 1973-02-09 Electric fail-safe actuator

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/626,723 Reissue USRE30135E (en) 1973-02-09 1975-10-29 Electric fail-safe actuator

Publications (1)

Publication Number Publication Date
US3808895A true US3808895A (en) 1974-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00331191A Expired - Lifetime US3808895A (en) 1973-02-09 1973-02-09 Electric fail-safe actuator

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US (1) US3808895A (fr)
JP (1) JPS5334005B2 (fr)
DE (1) DE2406176A1 (fr)
FR (1) FR2217613B1 (fr)
GB (1) GB1465407A (fr)
SE (1) SE410801B (fr)

Cited By (45)

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US4090589A (en) * 1975-10-23 1978-05-23 John Herman Fitzwater Fail safe valve actuator
US4130182A (en) * 1977-07-07 1978-12-19 Xomox Corporation Rotary spring-return actuator with safety feature
FR2422094A1 (fr) * 1978-04-07 1979-11-02 Rotork Ltd Dispositif de fixation de securite pour un actionneur
US4194607A (en) * 1977-01-14 1980-03-25 Diesel Kiki Company, Ltd. Electro-magnetic spring-wound clutch
US4273307A (en) * 1978-09-18 1981-06-16 Vapor Corporation Clutch for valve actuator
US4289039A (en) * 1978-04-10 1981-09-15 Cerberus Ag Release mechanism for a valve of a fire extinguishing installation
EP0091197A1 (fr) * 1982-03-29 1983-10-12 Honeywell Inc. Système de commande dépendant de conditions
US4619151A (en) * 1985-04-19 1986-10-28 Rockwell International Corporation Two speed axle shift actuator
US4669578A (en) * 1986-03-13 1987-06-02 Rikuo Fukamachi Motor driven valve
US4745822A (en) * 1985-04-19 1988-05-24 Rockwell International Corporation Two speed axle
US4757684A (en) * 1981-04-08 1988-07-19 Wright John J Fail-safe electric actuator
US5832944A (en) * 1994-12-24 1998-11-10 Abb Patent Gmbh Valve for a steam turbine and method of actuating the valve
US5915668A (en) * 1998-03-06 1999-06-29 Micro-Trak Systems, Inc. Fail safe valve actuator
US5986369A (en) * 1997-08-19 1999-11-16 Siemens Building Technologies, Inc. Actuator having piezoelectric braking element
US5988319A (en) * 1995-02-15 1999-11-23 Johnson Service Company Transmission for a return-to-normal actuator
US6109176A (en) * 1997-10-29 2000-08-29 Tokyo Kikai Seisakusho, Ltd. Printing unit drive apparatus for a rotary press
FR2790533A1 (fr) * 1999-03-02 2000-09-08 Michel Lesaint Dispositif pour actionner un robinet quart de tour
EP1126155A2 (fr) * 2000-02-18 2001-08-22 Siemens Automotive Inc. Système de commande pour valve rotative
BE1013369A3 (fr) * 2000-04-04 2001-12-04 Amatucci Aldo Securites anti-explosions de gaz.
US6651952B1 (en) * 1998-11-12 2003-11-25 Barber Colman Company Two position rotary actuator incorporating DC solenoid
EP1368230A1 (fr) * 2001-03-15 2003-12-10 Stoneridge Control Devices, Inc. Verin et commande de position integree
US20040069355A1 (en) * 2001-03-06 2004-04-15 Ghislain Sollier Control device
US20040069357A1 (en) * 2000-12-16 2004-04-15 John Ellacott Fluid control valves
US20050247900A1 (en) * 2004-05-10 2005-11-10 Eaton Corporation Valve assembly
GB2425341A (en) * 2005-04-20 2006-10-25 Renk Ag Electric actuator which is declutched to assume a rest position when power supply fails
US20080142748A1 (en) * 2004-04-23 2008-06-19 Vetco Aibel As Actuator System
US20080142749A1 (en) * 2006-01-18 2008-06-19 Gebler Kirk A Remotely activated manifold shut-off
EP1967777A1 (fr) 2007-03-05 2008-09-10 Esbe Ab Actionneur pour soupape à voies multiples et élément de connexion pour un tel actionneur
US20090039306A1 (en) * 2007-08-09 2009-02-12 Dorsey Michael J Valve assembly for aircraft water supply system
US20100000612A1 (en) * 2007-12-07 2010-01-07 Innovative Technology Concepts, Inc. Remotely activated manifold shut-off and method of using the same
US20120032100A1 (en) * 2010-08-04 2012-02-09 Kim Keum Mo Clutch apparatus for electric valve actuator
US20120193558A1 (en) * 2011-02-01 2012-08-02 Hoots Joshua Lee Valve Switchbox
US20160102775A1 (en) * 2014-10-10 2016-04-14 Fadi SHAKKOUR Flow control system and method
US9695947B2 (en) 2013-07-30 2017-07-04 Hayward Industries, Inc. Handle insert for valve
US9714723B1 (en) * 2016-03-21 2017-07-25 Flowinn (Shanghai) Industrial Co., Ltd. Speed-adjustable returning device of valve actuator
US9989154B2 (en) 2013-07-30 2018-06-05 Hayward Industries, Inc. Butterfly valve handle
WO2018224364A1 (fr) * 2017-06-05 2018-12-13 Siemens Schweiz Ag Entraînement de réglage comprenant un ressort de rappel agissant sur un raccord de réglage indépendamment du mode de réglage
US10570804B2 (en) * 2016-08-04 2020-02-25 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Rotary regulator with concomitantly movable force store
CN110998141A (zh) * 2017-07-14 2020-04-10 柏佛尔德流体动力有限公司 故障安全阀门执行器
US20220373099A1 (en) * 2019-07-11 2022-11-24 Schischek GmbH Fail-safe actuator and assembly unit
US20220381362A1 (en) * 2020-03-19 2022-12-01 Hangzhou Great Star Industrial Co., Ltd. Valve control device
EP4108962A1 (fr) * 2021-06-23 2022-12-28 Eaton Intelligent Power Limited Soupape actionnée à sécurité intégrée
US11560964B2 (en) * 2020-08-21 2023-01-24 Acist Medical Systems, Inc. Valve actuation device coupling
US11998716B2 (en) 2021-01-28 2024-06-04 Acist Medical Systems, Inc. Valve assembly

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JPS5384727U (fr) * 1976-12-16 1978-07-13
JPS5652447Y2 (fr) * 1977-06-08 1981-12-07
JPS5561662U (fr) * 1978-10-23 1980-04-26
JPS6327184Y2 (fr) * 1980-10-29 1988-07-22
FR2511746A1 (fr) * 1981-08-19 1983-02-25 Gachot Jean Support pour fixer un actionneur a un robinet
GB2121516B (en) * 1982-04-13 1985-11-13 Dobson Park Ind Fluid flow control valve
US4782811A (en) * 1987-03-30 1988-11-08 Robertshaw Controls Company Exhaust gas recirculation valve construction and method of making the same
JPH0210050A (ja) * 1988-06-29 1990-01-12 Yukihiro Obata 換気用ダンパなどの駆動装置と、その弁体開閉装置並びにその電動モータ
DE9419163U1 (de) * 1994-11-30 1995-01-26 Tech Apparatebau J & B Roloff Vorrichtung zur Betätigung von Armaturen
JP4593936B2 (ja) * 2004-01-29 2010-12-08 株式会社カワデン 電動バルブ

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US4090589A (en) * 1975-10-23 1978-05-23 John Herman Fitzwater Fail safe valve actuator
US4194607A (en) * 1977-01-14 1980-03-25 Diesel Kiki Company, Ltd. Electro-magnetic spring-wound clutch
US4130182A (en) * 1977-07-07 1978-12-19 Xomox Corporation Rotary spring-return actuator with safety feature
FR2422094A1 (fr) * 1978-04-07 1979-11-02 Rotork Ltd Dispositif de fixation de securite pour un actionneur
US4289039A (en) * 1978-04-10 1981-09-15 Cerberus Ag Release mechanism for a valve of a fire extinguishing installation
US4273307A (en) * 1978-09-18 1981-06-16 Vapor Corporation Clutch for valve actuator
US4757684A (en) * 1981-04-08 1988-07-19 Wright John J Fail-safe electric actuator
EP0091197A1 (fr) * 1982-03-29 1983-10-12 Honeywell Inc. Système de commande dépendant de conditions
US4619151A (en) * 1985-04-19 1986-10-28 Rockwell International Corporation Two speed axle shift actuator
US4745822A (en) * 1985-04-19 1988-05-24 Rockwell International Corporation Two speed axle
US4669578A (en) * 1986-03-13 1987-06-02 Rikuo Fukamachi Motor driven valve
US5832944A (en) * 1994-12-24 1998-11-10 Abb Patent Gmbh Valve for a steam turbine and method of actuating the valve
US5988319A (en) * 1995-02-15 1999-11-23 Johnson Service Company Transmission for a return-to-normal actuator
US5986369A (en) * 1997-08-19 1999-11-16 Siemens Building Technologies, Inc. Actuator having piezoelectric braking element
KR100544391B1 (ko) * 1997-08-19 2006-05-09 시멘스 빌딩 테크놀로지스, 인코포레이티드 전기 왜곡 제동 장치를 갖춘 액추에이터
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US5915668A (en) * 1998-03-06 1999-06-29 Micro-Trak Systems, Inc. Fail safe valve actuator
US6651952B1 (en) * 1998-11-12 2003-11-25 Barber Colman Company Two position rotary actuator incorporating DC solenoid
FR2790533A1 (fr) * 1999-03-02 2000-09-08 Michel Lesaint Dispositif pour actionner un robinet quart de tour
EP1126155A2 (fr) * 2000-02-18 2001-08-22 Siemens Automotive Inc. Système de commande pour valve rotative
EP1126155A3 (fr) * 2000-02-18 2002-08-21 Siemens Automotive Inc. Système de commande pour valve rotative
BE1013369A3 (fr) * 2000-04-04 2001-12-04 Amatucci Aldo Securites anti-explosions de gaz.
US20040069357A1 (en) * 2000-12-16 2004-04-15 John Ellacott Fluid control valves
US20040069355A1 (en) * 2001-03-06 2004-04-15 Ghislain Sollier Control device
US6848474B2 (en) * 2001-03-06 2005-02-01 G. Cartier Technologies Control device for a flow of fluid
EP1366317B1 (fr) * 2001-03-06 2007-05-02 G. Cartier Technologies Dispositif de commande
EP1368230A1 (fr) * 2001-03-15 2003-12-10 Stoneridge Control Devices, Inc. Verin et commande de position integree
EP1368230A4 (fr) * 2001-03-15 2005-04-13 Stoneridge Control Devices Inc Verin et commande de position integree
US20080142748A1 (en) * 2004-04-23 2008-06-19 Vetco Aibel As Actuator System
US7789370B2 (en) * 2004-04-23 2010-09-07 Vetco Gray Scandanavia As Actuator system
US7017882B2 (en) 2004-05-10 2006-03-28 Eaton Corporation Valve assembly
US20050247900A1 (en) * 2004-05-10 2005-11-10 Eaton Corporation Valve assembly
GB2425341A (en) * 2005-04-20 2006-10-25 Renk Ag Electric actuator which is declutched to assume a rest position when power supply fails
US7604216B2 (en) * 2006-01-18 2009-10-20 Innovative Technology Concepts, Inc. Remotely activated manifold shut-off
US20080142749A1 (en) * 2006-01-18 2008-06-19 Gebler Kirk A Remotely activated manifold shut-off
EP1967777A1 (fr) 2007-03-05 2008-09-10 Esbe Ab Actionneur pour soupape à voies multiples et élément de connexion pour un tel actionneur
RU2449195C2 (ru) * 2007-03-05 2012-04-27 Эсбе Аб Привод многоходового клапана и соединительный элемент для такого привода
US20090039306A1 (en) * 2007-08-09 2009-02-12 Dorsey Michael J Valve assembly for aircraft water supply system
US8172198B2 (en) * 2007-08-09 2012-05-08 Goodrich Corporation Valve assembly for aircraft water supply system
US20100000612A1 (en) * 2007-12-07 2010-01-07 Innovative Technology Concepts, Inc. Remotely activated manifold shut-off and method of using the same
US20120032100A1 (en) * 2010-08-04 2012-02-09 Kim Keum Mo Clutch apparatus for electric valve actuator
US8167266B2 (en) * 2010-08-04 2012-05-01 Rpm Tech Co., Ltd. Clutch apparatus for electric valve actuator
US20120193558A1 (en) * 2011-02-01 2012-08-02 Hoots Joshua Lee Valve Switchbox
US20140060663A1 (en) * 2011-02-01 2014-03-06 Hayward Industries, Inc. Valve Switchbox
US9010722B2 (en) * 2011-02-01 2015-04-21 Hayward Industries, Inc. Valve switchbox
US9010721B2 (en) * 2011-02-01 2015-04-21 Hayward Industries, Inc. Valve switchbox
US20150292646A1 (en) * 2011-02-01 2015-10-15 Hayward Industries, Inc. Valve Switchbox
US9702480B2 (en) * 2011-02-01 2017-07-11 Hayward Industries, Inc. Valve switchbox
US10683938B2 (en) 2013-07-30 2020-06-16 Hayward Industries, Inc. Butterfly valve
US9989154B2 (en) 2013-07-30 2018-06-05 Hayward Industries, Inc. Butterfly valve handle
US11092242B2 (en) 2013-07-30 2021-08-17 Hayward Industries, Inc. Butterfly valve
US9695947B2 (en) 2013-07-30 2017-07-04 Hayward Industries, Inc. Handle insert for valve
US10690252B2 (en) 2013-07-30 2020-06-23 Hayward Industries, Inc. Butterfly valve
US10683937B2 (en) 2013-07-30 2020-06-16 Hayward Industries, Inc. Butterfly valve
US20160102775A1 (en) * 2014-10-10 2016-04-14 Fadi SHAKKOUR Flow control system and method
US9714723B1 (en) * 2016-03-21 2017-07-25 Flowinn (Shanghai) Industrial Co., Ltd. Speed-adjustable returning device of valve actuator
US10570804B2 (en) * 2016-08-04 2020-02-25 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Rotary regulator with concomitantly movable force store
WO2018224364A1 (fr) * 2017-06-05 2018-12-13 Siemens Schweiz Ag Entraînement de réglage comprenant un ressort de rappel agissant sur un raccord de réglage indépendamment du mode de réglage
CN110998141A (zh) * 2017-07-14 2020-04-10 柏佛尔德流体动力有限公司 故障安全阀门执行器
CN110998141B (zh) * 2017-07-14 2023-02-28 柏佛尔德流体动力有限公司 故障安全阀门执行器
US20220373099A1 (en) * 2019-07-11 2022-11-24 Schischek GmbH Fail-safe actuator and assembly unit
US11976746B2 (en) * 2019-07-11 2024-05-07 Schischek GmbH Fail-safe actuator and assembly unit
US20220381362A1 (en) * 2020-03-19 2022-12-01 Hangzhou Great Star Industrial Co., Ltd. Valve control device
US11560964B2 (en) * 2020-08-21 2023-01-24 Acist Medical Systems, Inc. Valve actuation device coupling
US11998716B2 (en) 2021-01-28 2024-06-04 Acist Medical Systems, Inc. Valve assembly
EP4108962A1 (fr) * 2021-06-23 2022-12-28 Eaton Intelligent Power Limited Soupape actionnée à sécurité intégrée

Also Published As

Publication number Publication date
JPS5334005B2 (fr) 1978-09-18
GB1465407A (en) 1977-02-23
JPS49111224A (fr) 1974-10-23
SE410801B (sv) 1979-11-05
DE2406176A1 (de) 1974-08-15
FR2217613A1 (fr) 1974-09-06
FR2217613B1 (fr) 1978-01-06

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