US20110084223A1 - Valve actuator - Google Patents
Valve actuator Download PDFInfo
- Publication number
- US20110084223A1 US20110084223A1 US12/971,648 US97164810A US2011084223A1 US 20110084223 A1 US20110084223 A1 US 20110084223A1 US 97164810 A US97164810 A US 97164810A US 2011084223 A1 US2011084223 A1 US 2011084223A1
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- US
- United States
- Prior art keywords
- positioning element
- track
- valve
- valve actuator
- support member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/103—Spindle sealings with diaphragm, e.g. shaped as bellows or tube the diaphragm and the closure member being integrated in one member
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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
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
Definitions
- the present invention relates to a valve actuator having a rotatable positioning element.
- the present invention relates to a valve actuator having a near circular positioning element arranged in an associated sliding bearing in a support member.
- GB 2 206 185 discloses a dispense tap for dispensing carbonated liquids.
- the dispense tap according to GB 2 206 185 includes a flow regulator which is operated when the tap is in an intermediate position between open and closed. The intermediate position is defined by a cam surface on the tap actuator.
- the present invention complies with the above-mentioned object by providing, in a first aspect, a valve actuator comprising
- a track follower being operatively connected to a valve rod, the track follower being adapted to follow at least part of a track provided by the positioning element upon rotation thereof, the track follower being biased against at least part of the track by a resilient member,
- the rotatable positioning element comprises a curved outer portion arranged in an associated bearing formed by the support member.
- the valve actuator controls the position of a closing arrangement relative to a valve seating of a valve.
- the valve may in principle be any kind of valve such as for example a pneumatic valve or a vacuum valve.
- the positioning element may be operatively connected to a valve rod so as to displace the valve rod upon rotation of the positioning element,
- the curved outer portion of the positioning element may be shaped as an arc of a circle.
- the bearing in the support member may be shaped as an arc of a circle.
- the bearing may be formed by a continuous surface to form a sliding bearing or, alternatively, it may be formed by discrete points which are in contact with the curved outer portion of the positioning element.
- the track provided in the positioning element may be an integrated track formed into the positioning element or it may be a track arranged in a separate element which is attached to or fixed onto the positioning element.
- the positioning element comprises a substantially circular disc.
- the disc may be divided into two parts, a solid part and a non-solid part.
- the positioning element may be fabricated from a single piece of material, or it may be constituted by separate elements attached to each other so as to form the positioning element.
- the positioning element is made of brass.
- a hand grip is attached to the positioning element.
- the hand grip is attached to the solid part of the positioning element.
- the non-solid part of the positioning element may comprise two detached and spatially separated disc portions. Such an arrangement will allow the valve rod to engage into a hollow region between the two detached parts.
- Each of the detached disc portions may comprise a track. This track may be defined as a through-going opening or it may be defined as an indentation into the detached parts. To maintain balance the tracks of the detached portions may be substantially identical and aligned with each other.
- Track follower comprises a set of ball bearings or wheels rotatably mounted in relation to the valve rod.
- the ball bearings which may be made of metal, may be arranged on an axel oriented essentially perpendicular to the valve rod.
- the axel may be secured to the valve rod using for example a bolt.
- Each ball bearing which may be biased against at least part of a track, may be arranged to follow said track upon rotation of the positioning element. In this way, the ball bearings will be in contact with the track independently of the angular position of the positioning element.
- each track may comprise a plurality of cams and valleys.
- a number of valleys may be positioned between two neighbouring cams.
- Each valley defines a stable position for the track follower.
- Such stable position of the track follower defines a correspondently stable position of a closing element of the valve.
- Such stable position may in principle be chosen arbitrary. Examples of such positions may correspond to 0%, 10%, 20%, 30%, 50% and 100% opening of the valve.
- the number of stable positions is six. However, also the number of stable positions may in principle be chosen arbitrary and may therefore be higher or lower than six.
- the track may be fabricated without any cams.
- the track forms a smooth surface which allows continuous and stepless opening and closing of the valve.
- the support member may comprise a guiding arrangement for the track follower.
- This guiding arrangement may be a linear slit formed in a back-plate of the support member.
- the guiding arrangement is adapted to receive an extended axel part of the axel upon which the ball bearings of the track follower are mounted.
- the resilient member may comprise a helical spring arranged coaxially around the valve rod.
- a bellow made of stainless steel may also be provided coaxially around the valve rod and the helical spring.
- the present invention relates to a valve comprising a valve actuator according to the first aspect of the present invention.
- FIG. 1 shows a cross-sectional view of a first embodiment of the present invention
- FIG. 2 shows a detailed cross-sectional view of a second embodiment of the present invention
- FIG. 3 shows a three-dimensional view of the present invention.
- FIG. 1 a shows a cross-sectional view of a valve comprising a valve actuator according to a first embodiment of the present invention.
- the cross-sectional view shown in FIG. 1 a is taken along line AA in FIG. 1 b.
- the valve has a housing 1 of aluminium or stainless steel and a cover part 2 of a synthetic material, such as plastic.
- the valve actuator itself comprises a positioning element 3 , a track 4 arranged in an asymmetric manner relative to the positioning element 3 , a hand grip 5 , a support member 6 having a bearing for holding the positioning element 3 , a track follower having a set of ball bearings 7 , and the guiding slit 8 adapted to guide the track follower.
- the track follower is biased against the track 4 by a helical spring 9 which is encapsulated in a bellow 10 of stainless steel.
- a valve rod (not shown) connects the track follower and a closing element 11 of the valve.
- the closing element 11 rests on the valve seating 12 when the valve is closed.
- an o-ring may be positioned in the closing element 11 .
- the o-ring or a similar sealing element may be positioned in the valve seating 12 .
- the valve shown in FIG. 1 a is operated in the following manner:
- valve actuator When the valve actuator is in the position shown in FIG. 1 a the valve is closed.
- the hand grip 5 When the hand grip 5 is rotated in the clockwise direction the ball bearing 7 of the track follower will move along the track 4 . Since the distance between the track 4 and the outer edge 16 of the positioning element 3 increases along the track 4 the track follower will move upwards causing the closing element 11 to separate from the valve seating 12 . The largest separation is achieved when the hand grip 5 , and thereby the positioning element 3 , has been rotated 180 degrees in the clockwise direction. During this rotation the positioning element 3 slides in the sliding bearing 6 of the support member. To reduce friction between the positioning element 3 and the support member 6 suitable materials could be chosen.
- the friction coefficient between the positioning element 3 and the support member 6 must be moderate.
- the positioning element 3 is made of brass whereas the support member 6 is made of a synthetic material, such as plastic.
- the track follower is guided in guiding slit 8 .
- the valve of FIG. 1 a need not be fully opened by rotating the positioning element 3 180 degrees in the clockwise direction.
- the rotation may in principle be stopped at any position between the end points at the ends of the curved portion of the track 4 . Further details on this intermediate positioning of the track follower will be given in connection with FIG. 2 .
- the track 4 is constituted by a curved portion and a linear portion.
- the linear portion may take any shape other that linear, this portion of the track is just bridging the ends of the curved portion.
- the curved portion of the track 4 may be a smoothed curved portion without any kind of cams or other bumps. In the absence of cams and bumps the distance between the curved portion of the track and the edge 16 of the positioning element 3 changes monotonically. As a consequence, the closing element 11 of the valve will perform a continuous opening movement during rotation of the positioning element 3 in the clockwise direction. Similarly, when the positioning element 3 is rotated in the counter clockwise direction the closing element 11 will undergo a continuous closing movement.
- the positioning element 3 needs to be stabilized by other means.
- Such other means could involve the use of a toothing mechanism arranged between the positioning element 3 and for example the support member 6 , or alternatively, a high friction coefficient could be provided between the positioning element 3 and the support member 6 .
- Such high friction coefficient could be provided by a proper choice of materials.
- FIG. 2 shows a cross-sectional view of a second embodiment of the present invention where the curved portion 17 of the track comprises a plurality of cams 18 and valleys 19 .
- the valleys 19 define stable positions for the track follower 20 . Each of these stable positions defines a certain opening of the valve, for example a 10% opening.
- the number of cams 18 and associated valleys 19 may in principle be chosen arbitrary, only the length of the curved portion 17 and the size of the ball bearings of the track follower 20 set a limit to the number of stable positions.
- the positioning element shown in FIG. 2 comprises a total of 6 valleys and thereby 6 stable positions. These stable positions may for example define valve openings corresponding to a 0%, 10%, 20%, 30%, 50% and 100% opening of the valve.
- a valve rod 15 operatively connecting the track follower 20 and the closing element is also shown in FIG. 2 .
- FIG. 3 shows a three-dimensional illustration of the valve actuator according to the present invention.
- the valve actuator comprises a brass positioning element 21 with a hand grip 22 .
- the positioning element 21 is constituted by two parts, a solid part 23 and a non-solid part 24 .
- the positioning element may be fabricated from one piece of brass material, or alternatively, the positioning element may be constituted by several individual parts.
- the hand grip 22 is attached to the solid part 23 .
- the positioning element 21 rests in a support member 25 made of a synthetic material, such as plastic.
- the support member 25 is attached to the aluminium housing 26 of the valve itself.
- the non-solid part 24 of the positioning element 21 is constituted by two detached and separated disc portions ( 32 , 33 ). Each disc portion holds a track 27 which is arranged in an asymmetric manner relative to the centre of the rotatable positioning element 21 . By having this asymmetric arrangement the distance between the curved portion of the track and the edge of the positioning element 21 will vary.
- the track follower is constituted by two ball bearings 28 arranged on an axel 29 .
- the axel 29 is secured to the valve rod 15 by a bolt 30 .
- Each ball bearing 28 is biased against a track 27 by a helical spring 31 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a valve actuator comprising a support member for supporting a rotatable positioning element operatively connected to a valve rod. The valve actuator further comprises a track follower adapted to follow at least part of a track provided in the positioning element. The track follower is biased against at least part of the track by a resilient member. The rotatable positioning element comprises a curved outer portion arranged in an associated bearing formed in the support member.
Description
- The present application is a continuation application of U.S. patent application Ser. No. 11/577,896 filed May 15, 2007, which is entitled to the benefit of International Patent Application No. PCT/DK2005/000692 filed on Oct. 27, 2005, and Danish Patent Application No. PA 2004 01664 filed Oct. 28, 2004, each of which is hereby incorporated by reference in its entirety.
- The present invention relates to a valve actuator having a rotatable positioning element. In particular, the present invention relates to a valve actuator having a near circular positioning element arranged in an associated sliding bearing in a support member.
- A majority of known valve actuators, especially for larger valves, suffer from significant wear of the mechanical part. For example, significant wear often occurs between a rotatable and user operable positioning element and a support member.
- An example of such prior art valve actuator may be found in
GB 2 206 185 which discloses a dispense tap for dispensing carbonated liquids. The dispense tap according toGB 2 206 185 includes a flow regulator which is operated when the tap is in an intermediate position between open and closed. The intermediate position is defined by a cam surface on the tap actuator. - It is a drawback of the dispense tap according to
GB 2 206 185 that in order to achieve well-defined intermediate positions a relative high friction is required between the cam surface of the tap actuator and an underlying support surface. The high friction coefficient between the cam surface and the underlying support surface naturally introduces mechanical wear of the involved part. In particular, the underlying support surface will be highly exposed to wear over time. - It is an object of the present invention to provide a valve actuator offering less wear of the mechanical part.
- The present invention complies with the above-mentioned object by providing, in a first aspect, a valve actuator comprising
- a support member for supporting a rotatable positioning element, and
- a track follower being operatively connected to a valve rod, the track follower being adapted to follow at least part of a track provided by the positioning element upon rotation thereof, the track follower being biased against at least part of the track by a resilient member,
- wherein the rotatable positioning element comprises a curved outer portion arranged in an associated bearing formed by the support member.
- The valve actuator according to the present invention controls the position of a closing arrangement relative to a valve seating of a valve. The valve may in principle be any kind of valve such as for example a pneumatic valve or a vacuum valve. In order to activate the valve the positioning element may be operatively connected to a valve rod so as to displace the valve rod upon rotation of the positioning element,
- The curved outer portion of the positioning element may be shaped as an arc of a circle. Similarly, the bearing in the support member may be shaped as an arc of a circle. The bearing may be formed by a continuous surface to form a sliding bearing or, alternatively, it may be formed by discrete points which are in contact with the curved outer portion of the positioning element.
- The track provided in the positioning element may be an integrated track formed into the positioning element or it may be a track arranged in a separate element which is attached to or fixed onto the positioning element.
- Preferably, the positioning element comprises a substantially circular disc. The disc may be divided into two parts, a solid part and a non-solid part. The positioning element may be fabricated from a single piece of material, or it may be constituted by separate elements attached to each other so as to form the positioning element. Preferably, the positioning element is made of brass.
- In order to activate the valve actuator a hand grip is attached to the positioning element. Preferably, the hand grip is attached to the solid part of the positioning element.
- The non-solid part of the positioning element may comprise two detached and spatially separated disc portions. Such an arrangement will allow the valve rod to engage into a hollow region between the two detached parts. Each of the detached disc portions may comprise a track. This track may be defined as a through-going opening or it may be defined as an indentation into the detached parts. To maintain balance the tracks of the detached portions may be substantially identical and aligned with each other.
- Track follower comprises a set of ball bearings or wheels rotatably mounted in relation to the valve rod. The ball bearings, which may be made of metal, may be arranged on an axel oriented essentially perpendicular to the valve rod. The axel may be secured to the valve rod using for example a bolt. Each ball bearing, which may be biased against at least part of a track, may be arranged to follow said track upon rotation of the positioning element. In this way, the ball bearings will be in contact with the track independently of the angular position of the positioning element.
- In one embodiment, each track may comprise a plurality of cams and valleys. A number of valleys may be positioned between two neighbouring cams. Each valley defines a stable position for the track follower. Such stable position of the track follower defines a correspondently stable position of a closing element of the valve. Such stable position may in principle be chosen arbitrary. Examples of such positions may correspond to 0%, 10%, 20%, 30%, 50% and 100% opening of the valve. In this example the number of stable positions is six. However, also the number of stable positions may in principle be chosen arbitrary and may therefore be higher or lower than six.
- In another embodiment, the track may be fabricated without any cams. Thus, the track forms a smooth surface which allows continuous and stepless opening and closing of the valve.
- The support member may comprise a guiding arrangement for the track follower. This guiding arrangement may be a linear slit formed in a back-plate of the support member. The guiding arrangement is adapted to receive an extended axel part of the axel upon which the ball bearings of the track follower are mounted.
- The resilient member may comprise a helical spring arranged coaxially around the valve rod. A bellow made of stainless steel may also be provided coaxially around the valve rod and the helical spring.
- In a second aspect, the present invention relates to a valve comprising a valve actuator according to the first aspect of the present invention.
- The present invention will now be explained in further details with reference to the accompanying figures, wherein
-
FIG. 1 shows a cross-sectional view of a first embodiment of the present invention, -
FIG. 2 shows a detailed cross-sectional view of a second embodiment of the present invention, and -
FIG. 3 shows a three-dimensional view of the present invention. - While the invention is susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed. Rather, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
-
FIG. 1 a shows a cross-sectional view of a valve comprising a valve actuator according to a first embodiment of the present invention. The cross-sectional view shown inFIG. 1 a is taken along line AA inFIG. 1 b. - According to
FIG. 1 a the valve has a housing 1 of aluminium or stainless steel and acover part 2 of a synthetic material, such as plastic. However, other materials may also be applicable. The valve actuator itself comprises apositioning element 3, a track 4 arranged in an asymmetric manner relative to thepositioning element 3, ahand grip 5, asupport member 6 having a bearing for holding thepositioning element 3, a track follower having a set ofball bearings 7, and the guiding slit 8 adapted to guide the track follower. The track follower is biased against the track 4 by ahelical spring 9 which is encapsulated in abellow 10 of stainless steel. A valve rod (not shown) connects the track follower and aclosing element 11 of the valve. The closingelement 11 rests on thevalve seating 12 when the valve is closed. In order to ensure a hermetic sealing between theinlet 13 andoutlet 14 an o-ring may be positioned in theclosing element 11. Alternatively, the o-ring or a similar sealing element may be positioned in thevalve seating 12. - The valve shown in
FIG. 1 a is operated in the following manner: - When the valve actuator is in the position shown in
FIG. 1 a the valve is closed. When thehand grip 5 is rotated in the clockwise direction theball bearing 7 of the track follower will move along the track 4. Since the distance between the track 4 and theouter edge 16 of thepositioning element 3 increases along the track 4 the track follower will move upwards causing theclosing element 11 to separate from thevalve seating 12. The largest separation is achieved when thehand grip 5, and thereby thepositioning element 3, has been rotated 180 degrees in the clockwise direction. During this rotation thepositioning element 3 slides in the slidingbearing 6 of the support member. To reduce friction between thepositioning element 3 and thesupport member 6 suitable materials could be chosen. For example, if a long life time of the valve actuator is preferred the friction coefficient between thepositioning element 3 and thesupport member 6 must be moderate. In the valve shown inFIG. 1 a thepositioning element 3 is made of brass whereas thesupport member 6 is made of a synthetic material, such as plastic. During the rotation of thepositioning element 3 the track follower is guided in guiding slit 8. - The valve of
FIG. 1 a need not be fully opened by rotating thepositioning element 3 180 degrees in the clockwise direction. The rotation may in principle be stopped at any position between the end points at the ends of the curved portion of the track 4. Further details on this intermediate positioning of the track follower will be given in connection withFIG. 2 . - As seen in
FIG. 1 a the track 4 is constituted by a curved portion and a linear portion. The linear portion may take any shape other that linear, this portion of the track is just bridging the ends of the curved portion. - The curved portion of the track 4 may be a smoothed curved portion without any kind of cams or other bumps. In the absence of cams and bumps the distance between the curved portion of the track and the
edge 16 of thepositioning element 3 changes monotonically. As a consequence, the closingelement 11 of the valve will perform a continuous opening movement during rotation of thepositioning element 3 in the clockwise direction. Similarly, when thepositioning element 3 is rotated in the counter clockwise direction the closingelement 11 will undergo a continuous closing movement. - In case the curved portion of the track 4 is smooth and without any cams or other types of bumps the
positioning element 3 needs to be stabilized by other means. Such other means could involve the use of a toothing mechanism arranged between thepositioning element 3 and for example thesupport member 6, or alternatively, a high friction coefficient could be provided between thepositioning element 3 and thesupport member 6. Such high friction coefficient could be provided by a proper choice of materials. -
FIG. 2 shows a cross-sectional view of a second embodiment of the present invention where thecurved portion 17 of the track comprises a plurality ofcams 18 andvalleys 19. Thevalleys 19 define stable positions for thetrack follower 20. Each of these stable positions defines a certain opening of the valve, for example a 10% opening. The number ofcams 18 and associatedvalleys 19 may in principle be chosen arbitrary, only the length of thecurved portion 17 and the size of the ball bearings of thetrack follower 20 set a limit to the number of stable positions. The positioning element shown inFIG. 2 comprises a total of 6 valleys and thereby 6 stable positions. These stable positions may for example define valve openings corresponding to a 0%, 10%, 20%, 30%, 50% and 100% opening of the valve. However, other opening levels could equally be chosen. Also the number of stable position may be chosen arbitrary. Thus, the number of stable position could be 2, 3, 4, 5, 6, 7, or 8 or even higher. A valve rod 15 operatively connecting thetrack follower 20 and the closing element (not shown inFIG. 2 ) is also shown inFIG. 2 . -
FIG. 3 shows a three-dimensional illustration of the valve actuator according to the present invention. Again, the valve actuator comprises abrass positioning element 21 with ahand grip 22. Thepositioning element 21 is constituted by two parts, asolid part 23 and anon-solid part 24. The positioning element may be fabricated from one piece of brass material, or alternatively, the positioning element may be constituted by several individual parts. Thehand grip 22 is attached to thesolid part 23. Thepositioning element 21 rests in asupport member 25 made of a synthetic material, such as plastic. Thesupport member 25 is attached to thealuminium housing 26 of the valve itself. - As seen in
FIG. 3 thenon-solid part 24 of thepositioning element 21 is constituted by two detached and separated disc portions (32, 33). Each disc portion holds atrack 27 which is arranged in an asymmetric manner relative to the centre of therotatable positioning element 21. By having this asymmetric arrangement the distance between the curved portion of the track and the edge of thepositioning element 21 will vary. - The track follower is constituted by two
ball bearings 28 arranged on anaxel 29. Theaxel 29 is secured to the valve rod 15 by abolt 30. Eachball bearing 28 is biased against atrack 27 by ahelical spring 31.
Claims (9)
1. A valve actuator comprising:
a support member comprising a bearing for supporting a rotatable positioning element on the bearing, and
a track follower being operatively connected to a valve rod, the track follower being adapted to follow at least part of a track provided along an interior surface of the positioning element upon rotation thereof, the track follower being biased against at least part of the track provided by the interior surface of the positioning element,
wherein the track follower comprises a set of ball bearings or wheels rotatably mounted in relation to the valve rod, each ball bearing or wheel being biased against at least part of the track provided by the interior surface of the positioning element and arranged to follow said track upon rotation of the positioning element.
2. The valve actuator according to claim 1 , wherein the rotatable positioning element comprises a curved outer portion arranged in the bearing of the support member, and wherein the bearing of the support member comprises a curved inner portion corresponding in shape with the curved outer portion of the rotatable positioning element.
3. The valve actuator according to claim 1 , wherein the positioning element comprises a curved outer portion that is shaped as an arc of a circle.
4. The valve actuator according to claim 1 , wherein the bearing of the support member is shaped as an arc of a circle.
5. The valve actuator according to claim 1 , wherein the positioning element comprises a substantially circular disc, the circular disc having a solid part and a non-solid part.
6. The valve actuator according to claim 5 , further comprising a hand grip rigidly connected to the solid part of the positioning element.
7. The valve actuator according to claim 1 , wherein the support member comprises a guiding arrangement for the track follower.
8. The valve actuator according to claim 1 , further comprising a resilient member for biasing the track follower against at least part of the track provided by the positioning element, the resilient member comprising a helical spring arranged coaxially around the valve rod.
9. A valve comprising a valve actuator according to claim 1 , the valve actuator controlling the position of a closing arrangement relative to a valve seating of the valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/971,648 US20110084223A1 (en) | 2004-10-28 | 2010-12-17 | Valve actuator |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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DKPA200401664 | 2004-10-28 | ||
DKPA200401664 | 2004-10-28 | ||
PCT/DK2005/000692 WO2006045317A1 (en) | 2004-10-28 | 2005-10-27 | A valve actuator |
US57789607A | 2007-05-15 | 2007-05-15 | |
US12/971,648 US20110084223A1 (en) | 2004-10-28 | 2010-12-17 | Valve actuator |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2005/000692 Continuation WO2006045317A1 (en) | 2004-10-28 | 2005-10-27 | A valve actuator |
US57789607A Continuation | 2004-10-28 | 2007-05-15 |
Publications (1)
Publication Number | Publication Date |
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US20110084223A1 true US20110084223A1 (en) | 2011-04-14 |
Family
ID=35511297
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/577,896 Expired - Fee Related US7922151B2 (en) | 2004-10-28 | 2005-10-27 | Valve actuator |
US12/971,648 Abandoned US20110084223A1 (en) | 2004-10-28 | 2010-12-17 | Valve actuator |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US11/577,896 Expired - Fee Related US7922151B2 (en) | 2004-10-28 | 2005-10-27 | Valve actuator |
Country Status (6)
Country | Link |
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US (2) | US7922151B2 (en) |
EP (1) | EP1819955B1 (en) |
CN (1) | CN100549483C (en) |
AT (1) | ATE407317T1 (en) |
DE (1) | DE602005009576D1 (en) |
WO (1) | WO2006045317A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US7922151B2 (en) * | 2004-10-28 | 2011-04-12 | Danfoss A/S | Valve actuator |
JP2007198442A (en) * | 2006-01-24 | 2007-08-09 | Osaka Rasenkan Kogyo Kk | Valve structure and valve unit with the same |
US8632054B2 (en) * | 2011-02-23 | 2014-01-21 | Honeywell International Inc. | Valve actuator assembly with tool-less interconnect |
EP2884086B1 (en) * | 2013-12-11 | 2017-12-20 | Borgwarner Inc. | Actuator with valve return |
EP3163138B1 (en) * | 2015-10-26 | 2018-06-06 | FESTO AG & Co. KG | Valve assembly |
EP3171063A1 (en) * | 2015-11-20 | 2017-05-24 | VAT Holding AG | Vacuum corner valve with backdrop drive |
CN105508708A (en) * | 2016-01-25 | 2016-04-20 | 苏州巨瀚阀门有限公司 | Quick-acting valve |
DE102022000602A1 (en) | 2022-02-17 | 2023-08-17 | Vat Holding Ag | Vacuum angle valve with pressure sensor |
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2005
- 2005-10-27 US US11/577,896 patent/US7922151B2/en not_active Expired - Fee Related
- 2005-10-27 AT AT05796724T patent/ATE407317T1/en not_active IP Right Cessation
- 2005-10-27 DE DE602005009576T patent/DE602005009576D1/en active Active
- 2005-10-27 CN CNB2005800368188A patent/CN100549483C/en not_active Expired - Fee Related
- 2005-10-27 EP EP05796724A patent/EP1819955B1/en not_active Not-in-force
- 2005-10-27 WO PCT/DK2005/000692 patent/WO2006045317A1/en active IP Right Grant
-
2010
- 2010-12-17 US US12/971,648 patent/US20110084223A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
DE602005009576D1 (en) | 2008-10-16 |
US7922151B2 (en) | 2011-04-12 |
CN101048610A (en) | 2007-10-03 |
ATE407317T1 (en) | 2008-09-15 |
EP1819955B1 (en) | 2008-09-03 |
EP1819955A1 (en) | 2007-08-22 |
WO2006045317A1 (en) | 2006-05-04 |
CN100549483C (en) | 2009-10-14 |
US20080054207A1 (en) | 2008-03-06 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: DANFOSS A/S, DENMARK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PETERSEN, HANS KURT;MULLER, HENNING;REEL/FRAME:025760/0119 Effective date: 20070430 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |