WO2010055539A2 - System for plugging ducts and actuating device for such system - Google Patents
System for plugging ducts and actuating device for such system Download PDFInfo
- Publication number
- WO2010055539A2 WO2010055539A2 PCT/IT2009/000511 IT2009000511W WO2010055539A2 WO 2010055539 A2 WO2010055539 A2 WO 2010055539A2 IT 2009000511 W IT2009000511 W IT 2009000511W WO 2010055539 A2 WO2010055539 A2 WO 2010055539A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plugging
- type
- kinematism
- expansion
- bulkhead
- Prior art date
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Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/124—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
Definitions
- the present invention refers to a system for plugging ducts for transporting water, gas or other pressurised fluids and to an actuating device of such system.
- Plugging devices are known for ducts for transporting water, gas or other pressurised fluids which substantially comprise a bell adapted to be assembled onto a plane valve installed on a suitable hole made on the duct itself and at least one rod centrally sliding inside such bell at whose lower end a plugging device is placed and whose upper end is cooperating with an actuating panel controlling the placement of the plugging device inside the duct.
- the plugging device is of an expansion type and is composed of two flanges with beveled profile between which a rubber ring with trapezoidal section is placed: therefore, through the actuating panel, the flanges mutually approach and the consequent compression and expansion of the ring are performed, obtaining a complete adherence between rubber ring and internal duct wall, ensuring the flow-seal of the pressurised fluid.
- plugging systems comprising a plugging device composed of a fixed wing and a moving wing hinged to such fixed wing, each one of such wings being covered by a half-portion of expansion-type plugging disk and by a related compressing flange.
- a plugging device composed of a fixed wing and a moving wing hinged to such fixed wing, each one of such wings being covered by a half-portion of expansion-type plugging disk and by a related compressing flange.
- object of the present invention is solving the above prior art problems, by providing a system for plugging ducts for transporting water, gas or other pressurised fluids equipped with a plugging device with moving bulkhead in which a rubber expansion-type plugging disk is in a single piece, consequently resulting more reliable with respect to what has been proposed by the prior art.
- Another object of the present invention is providing an actuating device of a plugging system that can be more practically and easily used.
- FIG. 2 shows an enlarged view of the part of the plugging system according to the present invention included in box A of Figure 1;
- Figure 3 shows an exploded perspective view of the plugging system of Figure 1;
- Figure 4 shows a top perspective view of a preferred embodiment of the actuating device of the plugging system according to the present invention.
- a preferred embodiment of the plugging system 1 comprises at least one bell of a substantially known type (not shown) , such bell being adapted to be assembled on a plane valve installed on a suitable hole made on a duct for transporting water, gas or other pressurised fluids, such duct being preferably made of plastic material such as polyethylene PE, and at least one rod 3 centrally sliding inside such bell having a lower end cooperating with at least one plugging device 5 of the duct and an upper end cooperating with an actuating device 7 controlling the placement of the plugging device 5 inside the duct itself.
- the plugging device 5 is composed of at least one fixed bulkhead 9 integral with the rod 3 and at least one moving bulkhead 11 connected to such fixed bulkhead 9 by interposing at least one hinge-type kinematism 13, such moving bulkhead 11 rotating around a rotation axis of said hinge-type kinematism 13 preferably parallel to said rod 3 in order to pass from a rest position, in which such moving bulkhead 11 is substantially orthogonal to the fixed bulkhead 9, to a plugging position of the duct, in which the moving bulkhead 11 is substantially co-planar with the fixed bulkhead 9, such plugging device 5 further comprising at least one expansion-type plugging disk 15 in a single piece, preferably made of rubber and having a trapezoidal section, overlapped to the fixed bulkhead 9 and the moving bulkhead 11 and at least one external compressing flange 17 joining as a sandwich the expansion-type plugging disk 15 to the fixed bulkhead 9 and the moving bulkhead 11, so that at least one plugging edge 18 of the expansion-type plugging disk 15 radially projects therefrom
- the expansion-type plugging disk 15 can be equipped, next to such bending line L-L, substantially coinciding with the rotation axis of the hinge-type kinematism 13 and with the joining line between the fixed semi-flange 17a and the moving semi-flange 17b, with at least one bellows-type structure 19 made in a single piece with the expansion-type plugging disk 15 itself.
- At least one adaptor member 16 can be interposed, also composed of half-members 16a, 16b corresponding to the fixed bulkhead 9 and the moving bulkhead 11 and separated along the bending line L-L.
- the plugging system 1 further comprises at least one actuating kinematism, driven by the actuating device 7.
- the actuating kinematism of the plugging system 1 is adapted to: take the moving bulkhead 11 from its rest position to its plugging position, making it rotate around the rotation axis of the hinge-type kinematism 13: in this way, the moving bulkhead 11 and the fixed bulkhead 9, as well as the fixed semi-flange 17a and the semiflange 17b, become co- planar, simultaneously obtaining the planarity of the expansion-type plugging disk 15; make the flange 17 approach the bulkheads 9, 11 (for example along the direction shown by arrow C in Figure 2), consequently compressing the expansion-type plugging disk 15 that radially expands (for example along the direction shown by arrow E in Figure 2) obtaining the complete adherence between the plugging edge 18 and the internal duct wall, ensuring the flow-seal of the pressur
- the actuating kinematism of the plugging system 1 is adapted to operate inversely to what has been previously described, namely it is adapted to: - make the flange 17 go away from the bulkheads 9, 11 (for example along the direction shown by arrow A in Figure 2 opposite to arrow C) consequently decompressing the expansion-type plugging disk 15 that radially shrinks (for example along the direction shown by arrow D in Figure 2 opposite to arrow E) removing the adherence between the plugging edge 18 and theinternal duct wall; take the moving bulkhead 11 from its plugging position to its rest position, making it rotate around the rotation axis of the hinge-type kinematism 13: in this way, the moving bulkhead 11 and the fixed bulkhead 9, as well as the fixed semi-flange 17a and the semiflange 17b and the fixed portion 15a and the moving portion 15b, become orthogonal, bending the expansion-type plugging disk 15 along the bellows-type structure 19
- the actuating kinematism of the plugging system 1 is composed of at least one driving shaft 21 rotating inside the rod 3 having a first end 21a cooperating with the actuating device 7 and a second end 21b adapted to cooperate with the plugging device 5 in order to drive the hinge-type kinematism 13 to rotate, and therefore the moving bulkhead 11 to rotate, and the approaching or moving away movements of the flange 17 from the bulkheads 9, 11 themselves.
- the second end 21b of the driving shaft 21 cooperates with the plugging device 5 through the hinge-type kinematism 13 and by interposing at least one coupling of bevel gears, respectively 23 and 25, a first one of such bevel gears 23 being keyed-in on the second end 21b of the driving shaft 21 and a second of such bevel gears 25 cooperating with at least one compressing pin 27 of the flange 17 by interposing respective threaded surfaces 29, in order to make a screw-nut screw kinematism between such second bevel gear 25 and such compressing pin 27.
- the hinge-type kinematism 13 is rotated, taking the moving bulkhead 11 to its plugging position.
- a further rotation of the driving shaft 21 makes the coupling of bevel gears 23, 25 rotate: in particular, the rotation of the second bevel gear 25 makes the flange 17 approach the bulkheads 9, 11 along a direction shown by arrow C of Figure 2 through the screw-nut screw coupling with this latter one and the simultaneous compression and expansion of the expansion-type plugging disk 15 along the direction shown by arrow E of Figure 2.
- a preferred embodiment of the actuating device 7 comprises at least one body 31 equipped with an engagement seat 33 at least of the first end 21a of the driving shaft 21, at least one rotation kinematism of such driving shaft 21, at least one control means 35 of such rotation kinematism.
- the rotation kinematism comprises at least one worm screw rotated by the control means 35, made for example as at least one suitable crank mechanism (not shown) , such worm screw meshing with at least one straight-tooth gear keyed-in along the first end 21a of the driving shaft 21.
- the opposite rotation direction of the crank mechanism of the control means 35 affects the rotation direction R or R' of the driving shaft 21.
- the presence of the engagement seat 33 and the rotation kinematism, made as worm screw - straight-tooth gear coupling, advantageously allows easily removing the actuating device 7 from the actuating shaft 21 once having ended its use, reducing the overall sizes of the plugging system 1 according to the present invention, to then position it back only in case of need.
- the same actuating device 7 can be used for actuating and adjusting many plugging systems 1 according to the present invention, reducing the costs and complexity of the whole system.
- the actuating device 7 can be equipped, externally to the body 31, with displaying means, made for example as at least one arrow-type indicator 37, for the operating position of the moving bulkhead 11 inside the duct.
- the actuating device 7 could also be equipped with at least one handle 39 suitable to make its use more practical.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Surgical Instruments (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Paper (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
A plugging system (1) comprising at least one bell adapted to be assembled on a valve installed on a hole made on a duct for transporting water, gas or other pressurised fluids, such duct being preferably made of a plastic material like polyethylene PE, and at least one rod (3) centrally sliding inside such bell, a lower end of such rod (3) cooperating with at least one plugging device (5) of such duct and an upper end of such rod (3) cooperating with an actuating device (7) controlling an operating placement of such plugging device (5) inside such duct through at least one actuating kinematism, such plugging device (5) comprising at least one expansion-type plugging disk (15) made in a single piece.
Description
SYSTEM FOR PLUGGING DUCTS AND ACTUATING DEVICE FOR SUCH SYSTEM
The present invention refers to a system for plugging ducts for transporting water, gas or other pressurised fluids and to an actuating device of such system.
Plugging devices are known for ducts for transporting water, gas or other pressurised fluids which substantially comprise a bell adapted to be assembled onto a plane valve installed on a suitable hole made on the duct itself and at least one rod centrally sliding inside such bell at whose lower end a plugging device is placed and whose upper end is cooperating with an actuating panel controlling the placement of the plugging device inside the duct. In particular, in order to guarantee the maximum sealing in the internal surface of steel ducts to those high pressure values to which fluids transported by such ducts are subjected, the plugging device is of an expansion type and is composed of two flanges with
beveled profile between which a rubber ring with trapezoidal section is placed: therefore, through the actuating panel, the flanges mutually approach and the consequent compression and expansion of the ring are performed, obtaining a complete adherence between rubber ring and internal duct wall, ensuring the flow-seal of the pressurised fluid.
Though such systems has a high operating efficiency, they can be excessively costly, complex and/or uselessly performing in case they have to be used for plugging ducts made of plastic material, such as for example made of polyethylene PE, aimed for transporting fluids at much lower pressure values than those characterising the steel ducts. In order to plug ducts made of plastic material, the art has then proposed a plugging system comprising a plugging device composed of a fixed wing and a moving wing hinged to such fixed wing, each one of such wings being covered by a half-portion of expansion-type plugging disk and by a related compressing flange. However, the fact that the duct plugging is demanded to two half- portions which are mutually structurally separate, generates many problems for performing the seal due to the pressurised fluid and consequently limits
its necessary reliability and functionality.
Therefore, object of the present invention is solving the above prior art problems, by providing a system for plugging ducts for transporting water, gas or other pressurised fluids equipped with a plugging device with moving bulkhead in which a rubber expansion-type plugging disk is in a single piece, consequently resulting more reliable with respect to what has been proposed by the prior art. Another object of the present invention is providing an actuating device of a plugging system that can be more practically and easily used.
The above and other objects and advantages of the invention, as will appear from the following description, are obtained with a system for plugging ducts and with an actuating device of a plugging system as claimed in the respective independent claims. Preferred embodiments and non- trivial variations of the present invention are the subject-matter of the dependent claims.
The present invention will be better described by some preferred embodiments thereof, provided as a non-limiting example, with reference to the enclosed drawings, in which: - Figure 1 shows a side sectional view of a
preferred embodiment of the plugging system according to the present invention;
Figure 2 shows an enlarged view of the part of the plugging system according to the present invention included in box A of Figure 1;
Figure 3 shows an exploded perspective view of the plugging system of Figure 1; and
Figure 4 shows a top perspective view of a preferred embodiment of the actuating device of the plugging system according to the present invention.
With reference to the Figures, it possible to note that a preferred embodiment of the plugging system 1 according to the present invention comprises at least one bell of a substantially known type (not shown) , such bell being adapted to be assembled on a plane valve installed on a suitable hole made on a duct for transporting water, gas or other pressurised fluids, such duct being preferably made of plastic material such as polyethylene PE, and at least one rod 3 centrally sliding inside such bell having a lower end cooperating with at least one plugging device 5 of the duct and an upper end cooperating with an actuating device 7 controlling the placement of the plugging device 5 inside the duct itself.
In particular, the plugging device 5 is composed of at least one fixed bulkhead 9 integral with the rod 3 and at least one moving bulkhead 11 connected to such fixed bulkhead 9 by interposing at least one hinge-type kinematism 13, such moving bulkhead 11 rotating around a rotation axis of said hinge-type kinematism 13 preferably parallel to said rod 3 in order to pass from a rest position, in which such moving bulkhead 11 is substantially orthogonal to the fixed bulkhead 9, to a plugging position of the duct, in which the moving bulkhead 11 is substantially co-planar with the fixed bulkhead 9, such plugging device 5 further comprising at least one expansion-type plugging disk 15 in a single piece, preferably made of rubber and having a trapezoidal section, overlapped to the fixed bulkhead 9 and the moving bulkhead 11 and at least one external compressing flange 17 joining as a sandwich the expansion-type plugging disk 15 to the fixed bulkhead 9 and the moving bulkhead 11, so that at least one plugging edge 18 of the expansion-type plugging disk 15 radially projects therefrom: the external compressing flange 17 is therefore composed of at least one fixed semi-flange 17a secured to its respective fixed
bulkhead 9 through a fixed portion 15a of the expansion-type plugging disk 15 and at least one moving semi-flange 17b secured to its respective moving bulkhead 11 through a moving portion 15b of the expansion-type plugging disk 15. The moving semi-flange 17b can thereby rotate together and integrally with the moving bulkhead 11, consequently rotating the moving portion 15b of the expansion-type plugging disk 15 interposed between the moving semi-flange 17b and the moving bulkhead 11.
In order to allow the rotation of the expansion-type plugging disk 15, and in particular of its moving portion 15b, without generating excessive wear that could create breakages along its own bending line L-L separating the fixed portion 15a from the moving portion 15b, the expansion-type plugging disk 15 can be equipped, next to such bending line L-L, substantially coinciding with the rotation axis of the hinge-type kinematism 13 and with the joining line between the fixed semi-flange 17a and the moving semi-flange 17b, with at least one bellows-type structure 19 made in a single piece with the expansion-type plugging disk 15 itself. Possibly, between the
expansion-type plugging disk 15 and the bulkheads 9, 11, at least one adaptor member 16 can be interposed, also composed of half-members 16a, 16b corresponding to the fixed bulkhead 9 and the moving bulkhead 11 and separated along the bending line L-L.
The plugging system 1 according to the present invention further comprises at least one actuating kinematism, driven by the actuating device 7. In particular, with reference to Figure 2, in order to perform the duct plugging, the actuating kinematism of the plugging system 1 is adapted to: take the moving bulkhead 11 from its rest position to its plugging position, making it rotate around the rotation axis of the hinge-type kinematism 13: in this way, the moving bulkhead 11 and the fixed bulkhead 9, as well as the fixed semi-flange 17a and the semiflange 17b, become co- planar, simultaneously obtaining the planarity of the expansion-type plugging disk 15; make the flange 17 approach the bulkheads 9, 11 (for example along the direction shown by arrow C in Figure 2), consequently compressing the expansion-type plugging disk 15 that radially expands (for example along the direction shown by
arrow E in Figure 2) obtaining the complete adherence between the plugging edge 18 and the internal duct wall, ensuring the flow-seal of the pressurised fluid at least through it. Obviously, in order to remove the duct plugging, the actuating kinematism of the plugging system 1 is adapted to operate inversely to what has been previously described, namely it is adapted to: - make the flange 17 go away from the bulkheads 9, 11 (for example along the direction shown by arrow A in Figure 2 opposite to arrow C) consequently decompressing the expansion-type plugging disk 15 that radially shrinks (for example along the direction shown by arrow D in Figure 2 opposite to arrow E) removing the adherence between the plugging edge 18 and theinternal duct wall; take the moving bulkhead 11 from its plugging position to its rest position, making it rotate around the rotation axis of the hinge-type kinematism 13: in this way, the moving bulkhead 11 and the fixed bulkhead 9, as well as the fixed semi-flange 17a and the semiflange 17b and the fixed portion 15a and the moving portion 15b, become orthogonal, bending the expansion-type
plugging disk 15 along the bellows-type structure 19 passing through the bending line L-L.
In order to make what has been described above, the actuating kinematism of the plugging system 1 is composed of at least one driving shaft 21 rotating inside the rod 3 having a first end 21a cooperating with the actuating device 7 and a second end 21b adapted to cooperate with the plugging device 5 in order to drive the hinge-type kinematism 13 to rotate, and therefore the moving bulkhead 11 to rotate, and the approaching or moving away movements of the flange 17 from the bulkheads 9, 11 themselves.
In particular, the second end 21b of the driving shaft 21 cooperates with the plugging device 5 through the hinge-type kinematism 13 and by interposing at least one coupling of bevel gears, respectively 23 and 25, a first one of such bevel gears 23 being keyed-in on the second end 21b of the driving shaft 21 and a second of such bevel gears 25 cooperating with at least one compressing pin 27 of the flange 17 by interposing respective threaded surfaces 29, in order to make a screw-nut screw kinematism between such second bevel gear 25 and such compressing pin 27.
Therefore, starting from a rest position of the moving bulkhead 11, by rotating the driving shaft 21 along a first rotation direction (for example along the direction shown by arrow R in Figure 2), the hinge-type kinematism 13 is rotated, taking the moving bulkhead 11 to its plugging position. After having reached such plugging position that is an end-of-stroke of the rotation of the moving bulkhead 11, a further rotation of the driving shaft 21 makes the coupling of bevel gears 23, 25 rotate: in particular, the rotation of the second bevel gear 25 makes the flange 17 approach the bulkheads 9, 11 along a direction shown by arrow C of Figure 2 through the screw-nut screw coupling with this latter one and the simultaneous compression and expansion of the expansion-type plugging disk 15 along the direction shown by arrow E of Figure 2.
Starting instead from the plugging position of the moving bulkhead 11 and the expansion position of the expansion-type plugging disk 15, by rotating the driving shaft 21 along a second rotation direction (for example along the direction shown by arrow R' in Figure 2 opposite to arrow R) , the seal of the plugging edge 18 against the internal duct
wall prevents the rotation of the hinge-type kinematism 13, and therefore the rotation of the coupling of bevel gears 23, 25 is produced along an opposite direction to the previous one: in particular, the rotation of the second bevel gear 25 makes the flange 17 go away from the bulkheads 9, 11 along the direction shown by arrow A in Figure 2 through the screw-nut screw coupling with this latter one and the simultaneous decompression of the expansion-type plugging disk 15.
Then, after having ended the seal between the plugging edge 18, enough withdrawn along the direction shown by arrow D in Figure 2 from the decompression of the disk 15 and the internal duct wall, a further rotation of the driving shaft 21 generates the rotation of the hinge-type kinematism 13, taking the moving bulkhead 11 in its rest position, bending the expansion-type plugging disk 15 along the bellows-type structure 19. With reference to Figures 1 and 4, it is possible to note that a preferred embodiment of the actuating device 7 according to the present invention comprises at least one body 31 equipped with an engagement seat 33 at least of the first end 21a of the driving shaft 21, at least one
rotation kinematism of such driving shaft 21, at least one control means 35 of such rotation kinematism. Preferably, the rotation kinematism comprises at least one worm screw rotated by the control means 35, made for example as at least one suitable crank mechanism (not shown) , such worm screw meshing with at least one straight-tooth gear keyed-in along the first end 21a of the driving shaft 21. Obviously, the opposite rotation direction of the crank mechanism of the control means 35 affects the rotation direction R or R' of the driving shaft 21. It must be noted that the presence of the engagement seat 33 and the rotation kinematism, made as worm screw - straight-tooth gear coupling, advantageously allows easily removing the actuating device 7 from the actuating shaft 21 once having ended its use, reducing the overall sizes of the plugging system 1 according to the present invention, to then position it back only in case of need. As further advantage, the same actuating device 7 can be used for actuating and adjusting many plugging systems 1 according to the present invention, reducing the costs and complexity of the whole system.
Possibly, the actuating device 7 can be equipped, externally to the body 31, with displaying means, made for example as at least one arrow-type indicator 37, for the operating position of the moving bulkhead 11 inside the duct.
The actuating device 7 could also be equipped with at least one handle 39 suitable to make its use more practical.
Claims
1. Plugging system (1) comprising at least one bell adapted to be assembled on a valve installed on a hole made on a duct for transporting water, gas or other pressurised fluids, said duct being preferably made of a plastic material such as polyethylene PE, and at least one rod (3) centrally sliding inside said bell, a lower end of said rod
(3) cooperating with at least one plugging device (5) of said duct and an upper end of said rod (3) cooperating with an actuating device (7) controlling a placement of said plugging device (5) inside said duct through at least one actuating kinematism, characterised in that said plugging device (5) comprises at least one expansion-type plugging disk (15) made in a single piece.
2. Plugging system (1) according to claim 1, characterised in that said plugging device (5) comprises at least one fixed bulkhead (9) integral with said rod (3) and at least one moving bulkhead (11) connected to said fixed bulkhead (9) by interposing at least one hinge-type kinematism (13), said moving bulkhead (11) being rotating around a rotation axis of said hinge-type kinematism (13), said expansion-type plugging disk (15) being overlapped to said fixed bulkhead (9) and to said moving bulkhead (11), said plugging device (5) further comprising at least one external compressing flange (17) joining as a sandwich said expansion-type plugging disk (15) to said fixed bulkhead (9) and to said moving bulkhead (11) in order to make at least one plugging edge (18) of said expansion-type plugging disk (15) radially project, said external compressing flange (17) being composed of at least one fixed semi-flange (17a) secured to said fixed bulkhead (9) through a fixed portion (15a) of said expansion-type plugging disk (15) and at least one moving semi-flange (17b) secured to said respective moving bulkhead (11) through a moving portion (15b) of said expansion- type plugging disk (15).
3. Plugging system (1) according to claim 2, characterised in that said expansion-type plugging disk (15) is equipped next to a bending line (L-L) between said fixed portion (15a) and said moving portion (15b) with at least one bellows-type structure (19) made in a single piece with said expansion-type plugging disk (15) .
4. Plugging system (1) according to claim 1, characterised in that said expansion-type plugging disk (15) is made of rubber and has a trapezoidal section.
5. Plugging system (1) according to any one of the previous claims, characterised in that said actuating kinematism is composed of at least one driving shaft (21) rotating (R; R') inside said rod (3), said driving shaft (21) having a first end (21a) cooperating with said actuating device (7) and a second end (21b) adapted to cooperate with said plugging device (5) to drive said hinge-type kinematism (13) to rotate and said flange (17) to approach (C) or move away (A) from said bulkheads (9, 11) .
6. Plugging system (1) according to claim 5, characterised in that said second end (21b) cooperates with said plugging device (5) through said hinge-type kinematism (13) and by interposing at least one coupling of bevel gears (23, 25) , a first one of said bevel gears (23) being keyed-in onto said second end (21b) and a second one of said bevel gears (25) cooperating with at least one compressing pin (27) of said flange (17) by interposing respective threaded surfaces (29) in order to make a screw-nut screw kinematism between said second bevel gear (25) and said compressing pin ( 27 ) .
7. Actuating device (7), in particular for actuating a plugging system (1) according to any¬ one of the previous claims, characterised in that it comprises at least one body (31) equipped with an engagement seat (33) of at least one of said first ends (21a) of said driving shaft (21) , at least one rotation kinematism of said driving shaft (21), and at least one control means (35) of said rotation kinematism.
8. Actuating device (7) according to claim 7, characterised in that said rotation kinematism comprises at least one worm screw rotated by said control means (35), said worm screw meshing with at least one straight-tooth gear keyed-in along said first end (21a) of said driving shaft (21) .
9. Actuating device (7) according to claim 7, characterised in that it comprises displaying means (37) of an operating position of said moving bulkhead (11) inside said duct.
10. Actuating device (7) according to claim 7, characterised in that it comprises at least one handle (39) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2008U000152 | 2008-11-13 | ||
| ITTO20080152 ITTO20080152U1 (en) | 2008-11-13 | 2008-11-13 | CONDUCTURE FASTENING SYSTEM AND A SYSTEM OPERATING DEVICE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010055539A2 true WO2010055539A2 (en) | 2010-05-20 |
| WO2010055539A3 WO2010055539A3 (en) | 2010-07-22 |
Family
ID=42170487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2009/000511 WO2010055539A2 (en) | 2008-11-13 | 2009-11-12 | System for plugging ducts and actuating device for such system |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITTO20080152U1 (en) |
| WO (1) | WO2010055539A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017117245A1 (en) * | 2015-12-30 | 2017-07-06 | Tdw Delaware, Inc. | Device for sealing pipelines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442295A (en) * | 1967-01-12 | 1969-05-06 | Williamson Inc T | Pipeline plugger |
| IT1240576B (en) * | 1990-11-26 | 1993-12-17 | Roberto Ravetti | GAS PIPE CLOSING DEVICE. |
| US5531250A (en) * | 1994-05-05 | 1996-07-02 | Tdw Delaware, Inc. | Device for plugging the interior of a pipe |
-
2008
- 2008-11-13 IT ITTO20080152 patent/ITTO20080152U1/en unknown
-
2009
- 2009-11-12 WO PCT/IT2009/000511 patent/WO2010055539A2/en active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017117245A1 (en) * | 2015-12-30 | 2017-07-06 | Tdw Delaware, Inc. | Device for sealing pipelines |
| US9746088B2 (en) | 2015-12-30 | 2017-08-29 | Tdw Delaware, Inc. | Device for sealing pipelines |
| US10094479B2 (en) | 2015-12-30 | 2018-10-09 | Tdw Delaware, Inc. | Device for sealing pipelines |
| US10746309B2 (en) | 2015-12-30 | 2020-08-18 | Tdw Delaware, Inc. | Device for sealing pipelines |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010055539A3 (en) | 2010-07-22 |
| ITTO20080152U1 (en) | 2010-05-14 |
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