US20010003225A1 - Alignment tool - Google Patents
Alignment tool Download PDFInfo
- Publication number
- US20010003225A1 US20010003225A1 US09/230,994 US23099499A US2001003225A1 US 20010003225 A1 US20010003225 A1 US 20010003225A1 US 23099499 A US23099499 A US 23099499A US 2001003225 A1 US2001003225 A1 US 2001003225A1
- Authority
- US
- United States
- Prior art keywords
- alignment tool
- lever
- coupling device
- tool
- conduit
- 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.)
- Granted
Links
Images
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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/10—Accessories therefor, e.g. anchors for aligning
-
- 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
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
-
- 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
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53909—Means comprising hand manipulatable tool
- Y10T29/53913—Aligner or center
-
- 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
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53909—Means comprising hand manipulatable tool
- Y10T29/53913—Aligner or center
- Y10T29/53917—Tube with tube
Abstract
Description
- The present invention relates to an alignment tool.
- When joining two lengths of pipe it is very often difficult to align correctly the flanged ends of the pipes before a joint can be made. The joint can require a high degree of accuracy in terms of conduit alignment, in order to provide the requisite strength and reliability from the joint.
- Traditional methods for bringing the flanged ends of such conduits into alignment include the use of crow bars, steel podgers and fox wedges. However, these methods cause damage to the steel work and pipes surrounding the joint. In addition these methods tend to be of a trial and error nature and as such are very often inaccurate and unreliable.
- Other such methods for alignment include the use of chain blocks, pull lifts, tirfors, jacks, cranes or the like. These methods require anchor points in the direction in which misalignment has occurred. For example, if the misalignment is in the vertical direction, an anchor point vertically above the joint is required. This tends to be difficult to achieve in practice when the displacement between the two flanged pipes may only be in the order of a few millimetres.
- In accordance with a first aspect of the present invention there is provided an alignment tool comprising a first coupling device having means for engaging a first conduit, a second coupling device having means for engaging a second conduit and a lever, the coupling devices being coupled to the lever, wherein movement of the lever when the first and second coupling devices are engaged with the respective conduits causes relative movement of the coupling devices to align the adjacent ends.
- In a preferred embodiment, the first and second coupling devices are movable between different spaced-apart locations on the tool.
- Typically, the tool has a handle on the lever to facilitate hand-operation of the tool. Preferably, the handle is fixed at or near one end of the lever, and the coupling devices are coupled to the lever at or near the other end.
- Alternatively, an actuation piston is disposed between the lever and one of the coupling devices, and causes movement of the lever upon actuation of the piston.
- Typically, the coupling devices are pivotally coupled to the lever.
- In accordance with a second aspect of the present invention there is provided an alignment tool comprising a first coupling device having means for engaging a first conduit, a second coupling device having means for engaging a second conduit and a plate connecting the two devices together, wherein relative movement of the first and second coupling devices urges movement of the conduits to align their ends.
- Typically, movement of the first coupling device is actuated by a hydraulic cylinder.
- In a preferred embodiment, the tool includes stabilising means which abuts a part of one of the conduits. Preferably, the stabilising means comprises a brace which is slidably mounted in a sleeve, the brace having at one end a surface for contacting one of the conduits. Typically, the stabilising means is locked in position by an annular ring which is screw-threaded.
- Typically also, the surface is curved to conform to the exterior of the conduit.
- In a preferred embodiment, the first and second coupling devices are capable of moving relative to one another.
- Typically, the relative movement results in the first coupling device moving downwards and the second coupling device moving upwards.
- Typically, the first coupling device comprises a surface which is typically planar and is adapted to contact the other conduit.
- Preferably, the first coupling device comprises a movable surface, such as a rotatable wheel or a pivot point.
- Typically, the second coupling device is adapted to fit into a bolt hole in a flange on the end of the first conduit.
- Preferably, the conduits comprise metal pipe.
- Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:
- FIG. 1 is a side elevation of an alignment tool according to a first aspect of the present invention, designed to be operated by hand; and
- FIG. 2 is a side elevation of an alternative form of alignment tool, designed to be operated hydraulically.
- FIG. 3 is a side elevation of an alignment tool according to the second aspect of the present invention.
- Referring firstly to FIG. 1, there is shown an alignment tool, generally designated10, which includes a
first coupling device 12 for engaging afirst conduit 14 which is provided with afirst fixing flange 20. Asecond coupling device 16 engages asecond conduit 18 having a correspondingsecond fixing flange 22. Thesecond conduit 18 is to be firstly aligned with and then joined to thefirst conduit 14. - The first and
second coupling devices lever 24 at one end thereof, using any suitable means, for example by rivetting or screws. In practice, the first andsecond coupling devices devices - The
lever 24 is provided with ahandle 26 at the other end, thehandle 26 facilitating operation of thetool 10 by hand. - The
first coupling device 12 comprises a collar 12 a which has abracket 12 b extending perpendicular to the longitudinal axis of thelever 24. Rotatably mounted at one end of thebracket 12 b is alever wheel 28. Thelever wheel 28 abuts either thefirst fixing flange 20 of thefirst conduit 14 or theconduit 14 itself. It will be appreciated that thelever wheel 28 may be replaced by any suitable flat surface which is capable of providing a pivot point. - The
second coupling device 16 includes asecond collar 16 a which has aleg 16 b extending therefrom in a direction perpendicular to the longitudinal axis of thelever 24. Asleeve 30 is pivotally connected to theleg 16 b of thesecond coupling device 16 using ahinge 34. - In this embodiment, a
dowel 32 is inserted into, and secured within, thesleeve 30. Thedowel 32 extends in a direction parallel to thelever 24 and is engaged by abolt hole 36. A plurality ofsuch bolt holes 36 are used to secure the twoflanges - In use, an operator will hold
handle 26 and exert an upward force on thelever 24. Thetool 10 pivots about the point of contact between thelever wheel 28 and thefirst fixing flange 20 of thefirst conduit 14, forcing thefirst conduit 14 down. Simultaneously, the force generated by the pivoting movement at thelever wheel 28 will pull the second coupling device 16 (and the second conduit 18) upwards, bringing thebolt holes 36 into alignment for subsequent joining. - It will be generally appreciated that it is possible to change the positions of the first and
second coupling devices first coupling device 12, is closer to thehandle 26. In this particular embodiment, the operator will be required to push down on the handle, as opposed to pulling upwards. - The
first coupling device 12 will provide the same pivotal motion as before, thereby pushing down on thesecond conduit 18. The combination of the downward force and the pivotal motion at the pivot point will cause thesecond coupling device 16 to pull thefirst conduit 14 upwards and thereby align the twoflanges - FIG. 2 shows an alternative embodiment of
alignment tool 100. In this example, the overall structure remains the sane, except that the actuation of thelever 124 is by way of anactuation cylinder 138. In use, hydraulic fluid, for example oil, is pumped into thecylinder 138 through ahose 140. - Expansion of the
cylinder 138 will cause thelever 124 to move upwards and relative movement of thefirst coupling device 112 with respect to thesecond coupling device 116 will be initiated. As with the previous embodiment, thefirst coupling device 112 will provide a pivot point and will force thefirst flange 120 downwards. The pivoting motion of thefirst coupling device 112 will cause thesecond coupling device 116 to move upwards, thereby aligning the twoflanges conduits - Using this variation of the tool allows larger conduits to be aligned as the operation of the
tool 100 is no longer dependent upon the strength of the operator. - FIG. 3 shows a second aspect of the present invention. In this embodiment, the
alignment tool 200 comprises amounting plate 210, which has astabiliser 250 coupled at one end. - The
stabiliser 250 comprises a screw threadedcentral brace 252 which is slidably mounted within thestabiliser 250. Abolt 254 engages aslot 256 in thecentral brace 252 allowing thebrace 252 to move vertically within thestabiliser 250. - A stabilising
plate 258 is coupled to the lower end of thebrace 252 to provide a contact point with one of the conduits to be joined. In order to further improve the stability of thedevice 200, the undersurface 260 of theplate 258 may be substantially curved such that the curved surface of the conduit is cradled by thesurface 260. - In use, a
knurled ring 262 which has an internal screw thread of the opposite hand of the thread on thebrace 252, is turned in a first direction. The turning motion loosens the grip of thering 262 on thebrace 252 allowing thebrace 252 to move vertically. - The
brace 252 is lowered until theplate 258 rests against the surface of one of the conduits. Thering 262 is then screwed in the opposite direction which locks thebrace 252 in position. Thealignment tool 200 is then substantially stabilised. - A
first coupling device 212 is coupled at the opposite end of the mountingplate 210. Ahydraulic cylinder 214 is directly coupled to the mountingplate 210 which permits thefirst coupling device 212 to move vertically. Abracket 216 is coupled to the lower end of thecylinder 214 and has alever wheel 218 rotatably mounted to it. Thewheel 218 may be replaced by any suitable flat surface, such as a skid for example, which is capable of providing a suitable pivot point. - Mounted between the
stabiliser 250 and thefirst coupling device 212 is asecond coupling device 220. The second device comprises aleg 222 which extends vertically downwards. Located at the bottom of theleg 222 is areceptacle 224, A locatingdowel 226 is slidably coupled to thereceptacle 224 such that thedowel 226 may slide in a substantially horizontal direction. - In use, the
dowel 226 is located into abolt hole 228 on afirst flange 230 of the first conduit. Thestabiliser 250 is then lowered into position, as described above. Activating thehydraulic cylinder 214 lowers thelever wheel 218 of thefirst coupling device 212 until thewheel 218 contacts asecond flange 232 of a second conduit. - The contact between the
wheel 218 and thesecond flange 232 provides a reaction point, where the continual lowering of thefirst coupling device 212 provides a downward force on thesecond flange 232. This downward force causes an opposite upward force to be exerted on thefirst flange 230 by thesecond coupling device 220. The opposite forces on thefirst flange 230 and thesecond flange 232 brings them into alignment so that theflanges - As can be seen from FIG. 3, a plurality of locating holes is provided such that the
second coupling device 220 may be moved horizontally along the mountingplate 210. This movement allows thetool 200 to be used with a variety of conduits with varying sizes of flanges. It will be appreciated that thefirst coupling device 212 may also be replaced with a device which has, for example, a larger actuation cylinder such that larger conduits may be aligned. - Hence, the present invention provides an alignment tool which gives a more controlled alignment of two conduits and gives improved precision over prior art methods. Furthermore, the tool does not damage the conduits or structures as no anchor points outwith the immediate vicinity are required.
- Modifications and improvements may be made to the foregoing without departing from the scope of the invention.
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/012,179 US6513216B2 (en) | 1996-08-07 | 2001-11-06 | Alignment tool |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9616579.0 | 1996-08-07 | ||
GBGB9616579.0A GB9616579D0 (en) | 1996-08-07 | 1996-08-07 | Alignment tool |
GB9616579 | 1996-08-07 | ||
GB9706631 | 1997-04-01 | ||
GBGB9706631.0A GB9706631D0 (en) | 1997-04-01 | 1997-04-01 | Alignment tool |
PCT/GB1997/002135 WO1998005893A1 (en) | 1996-08-07 | 1997-08-07 | Alignment tool |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/002135 A-371-Of-International WO1998005893A1 (en) | 1996-08-07 | 1997-08-07 | Alignment tool |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/012,179 Division US6513216B2 (en) | 1996-08-07 | 2001-11-06 | Alignment tool |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010003225A1 true US20010003225A1 (en) | 2001-06-14 |
US6327763B2 US6327763B2 (en) | 2001-12-11 |
Family
ID=26309834
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/230,994 Expired - Lifetime US6327763B2 (en) | 1996-08-07 | 1997-08-07 | Alignment tool |
US10/012,179 Expired - Lifetime US6513216B2 (en) | 1996-08-07 | 2001-11-06 | Alignment tool |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/012,179 Expired - Lifetime US6513216B2 (en) | 1996-08-07 | 2001-11-06 | Alignment tool |
Country Status (8)
Country | Link |
---|---|
US (2) | US6327763B2 (en) |
EP (1) | EP0916051B1 (en) |
AU (1) | AU3856697A (en) |
DE (1) | DE69707686T2 (en) |
DK (1) | DK0916051T3 (en) |
ES (1) | ES2166556T3 (en) |
NO (1) | NO318535B1 (en) |
WO (1) | WO1998005893A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013181704A1 (en) * | 2012-06-05 | 2013-12-12 | Osprey Subsea Technical Solutions (Osts) Pty Ltd | Flange catching, aligning and closing tool |
US20140033491A1 (en) * | 2012-08-06 | 2014-02-06 | Mcelroy Manufacturing, Inc. | Socket fusion jig |
US20150147152A1 (en) * | 2012-06-06 | 2015-05-28 | Garry Ray Van Heerden | Pipe Connection Guide Arrangement |
US10385692B2 (en) * | 2016-11-03 | 2019-08-20 | China University Of Mining And Technology | Apparatus and method for pre-loading mechanical constant-resistance single prop |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5958884A (en) * | 1997-04-11 | 1999-09-28 | The Brigham And Women's Hospital, Inc. | Compositions and methods for treating erectile dysfunction |
US6568712B1 (en) * | 2000-06-19 | 2003-05-27 | Aaron, Iii John W. | Alignment tool for pipe couplings |
EP1225288A3 (en) * | 2001-01-23 | 2004-05-12 | Erico International Corporation | Reinforcing bar tool and method |
US6701595B2 (en) * | 2001-06-28 | 2004-03-09 | Dennis S. Janovici | Clamp connection and release device |
US6983525B2 (en) * | 2003-01-07 | 2006-01-10 | Valtra, Inc. | Alignment clamp |
DE102005002556B4 (en) * | 2004-08-25 | 2013-09-12 | Kurt Grützmann Feinmechanic GmbH | Mounting aid for a flange connection |
IL177036A (en) * | 2006-07-23 | 2011-05-31 | Sagiv Agudah Shitufit Chaklait Be Am | Device and method for coupling a pipe fitting to a pipe |
US7784834B2 (en) * | 2007-03-28 | 2010-08-31 | Varco I/P, Inc. | Clamp apparatus for threadedly connected tubulars |
US20120324695A1 (en) * | 2011-06-23 | 2012-12-27 | Promation Nuclear Ltd. | Extension tooling apparatus |
US9592588B2 (en) * | 2011-09-21 | 2017-03-14 | 1729655 Alberta Ltd. | Pipe aligning tool |
US8850679B2 (en) * | 2011-09-21 | 2014-10-07 | Quinn Bender | Pipe aligning tool |
IN2015KN00677A (en) * | 2012-09-20 | 2015-07-17 | Gkn Armstrong Wheels Inc | |
US9527173B2 (en) * | 2013-05-14 | 2016-12-27 | Siemens Energy, Inc. | Alignment tool for use in aligning openings in structural members |
CN103537896A (en) * | 2013-10-23 | 2014-01-29 | 中国原子能科学研究院 | Flange centering device |
CA2945861C (en) * | 2014-04-22 | 2019-08-20 | Vestas Wind Systems A/S | Alignment tool, system and method for the connection of wind turbine tower segments |
CN107030479B (en) * | 2016-12-26 | 2019-05-24 | 北京金风科创风电设备有限公司 | Dislocation adjusting device and flange dislocation adjusting method |
KR200493635Y1 (en) * | 2019-12-30 | 2021-05-07 | 주식회사 한국가스기술공사 | flange arrangement jig for pipe connection |
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US662342A (en) * | 1900-03-01 | 1900-11-20 | James W Berry | Pipe-hook. |
DE523980C (en) | 1929-04-24 | 1931-04-30 | Metallgesellschaft Ag | Aid to prevent the mutual twisting of two machine parts to be connected by screwing |
US1985152A (en) * | 1934-04-24 | 1934-12-18 | Jesse E Crockett | Pipe lifter and aligner |
US2638676A (en) | 1949-04-21 | 1953-05-19 | John E Callahan | Shaft alignment device |
US3015883A (en) | 1957-12-02 | 1962-01-09 | Phillips Petroleum Co | Flange aligning tool |
US3318592A (en) | 1964-10-20 | 1967-05-09 | Arnold M Steffen | Holding device |
JPS5028179Y2 (en) | 1971-02-23 | 1975-08-20 | ||
AU463600B2 (en) | 1973-05-17 | 1975-07-31 | Fibreboard Corporation | Tool for drawing the ends of opposed members together |
US4150477A (en) | 1977-09-21 | 1979-04-24 | Exxon Production Research Company | Pre-loading joint flanges |
US4263084A (en) | 1979-06-22 | 1981-04-21 | Impala Plastics (Pty) Limited | Thermoplastic welding |
US4722468A (en) * | 1982-07-20 | 1988-02-02 | Mcclure Gary W | Boiler pipe tool for heliarc welding with tongue and groove interlock |
US4555841A (en) * | 1983-03-30 | 1985-12-03 | Alton C. Harris | Pipe aligning tool |
US4872709A (en) * | 1983-05-02 | 1989-10-10 | The Dow Chemical Company | Pipe aligning apparatus |
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JPH05177557A (en) | 1992-01-07 | 1993-07-20 | Osaka Gas Co Ltd | Piping connection jig |
DE9207334U1 (en) | 1992-05-30 | 1992-11-19 | Simsheuser, Dietmar, Dipl.-Ing. (Fh), 5489 Lueckenbach, De | |
DE9307957U1 (en) | 1993-05-26 | 1993-07-29 | Vulkan Lokring Gmbh & Co. Kg, 4690 Herne, De | |
AU690191B2 (en) * | 1994-01-08 | 1998-04-23 | Equalizer International Limited | Apparatus for aligning two members |
US5560091A (en) * | 1994-05-26 | 1996-10-01 | Labit, Jr.; Sexon J. | Apparatus for aligning pipe flanges |
US5640748A (en) * | 1996-01-16 | 1997-06-24 | Harrison; Richard L. | Pipeline assembling apparatus for use with large diameter pipes |
-
1997
- 1997-08-07 WO PCT/GB1997/002135 patent/WO1998005893A1/en active IP Right Grant
- 1997-08-07 DK DK97935669T patent/DK0916051T3/en active
- 1997-08-07 ES ES97935669T patent/ES2166556T3/en not_active Expired - Lifetime
- 1997-08-07 AU AU38566/97A patent/AU3856697A/en not_active Abandoned
- 1997-08-07 DE DE69707686T patent/DE69707686T2/en not_active Expired - Lifetime
- 1997-08-07 US US09/230,994 patent/US6327763B2/en not_active Expired - Lifetime
- 1997-08-07 EP EP97935669A patent/EP0916051B1/en not_active Expired - Lifetime
-
1999
- 1999-02-05 NO NO19990552A patent/NO318535B1/en not_active IP Right Cessation
-
2001
- 2001-11-06 US US10/012,179 patent/US6513216B2/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013181704A1 (en) * | 2012-06-05 | 2013-12-12 | Osprey Subsea Technical Solutions (Osts) Pty Ltd | Flange catching, aligning and closing tool |
US20150147152A1 (en) * | 2012-06-06 | 2015-05-28 | Garry Ray Van Heerden | Pipe Connection Guide Arrangement |
US9506586B2 (en) * | 2012-06-06 | 2016-11-29 | Garry Ray Van Heerden | Pipe connection guide arrangement |
US20140033491A1 (en) * | 2012-08-06 | 2014-02-06 | Mcelroy Manufacturing, Inc. | Socket fusion jig |
US20170217085A1 (en) * | 2012-08-06 | 2017-08-03 | Mcelroy Manufacturing, Inc. | Socket fusion jig |
US10093000B2 (en) * | 2012-08-06 | 2018-10-09 | Mcelroy Manufacturing, Inc. | Socket fusion jig |
US10160101B2 (en) * | 2012-08-06 | 2018-12-25 | Mcelroy Manufacturing, Inc. | Socket fusion jig |
US10385692B2 (en) * | 2016-11-03 | 2019-08-20 | China University Of Mining And Technology | Apparatus and method for pre-loading mechanical constant-resistance single prop |
Also Published As
Publication number | Publication date |
---|---|
AU3856697A (en) | 1998-02-25 |
DE69707686T2 (en) | 2002-07-11 |
DK0916051T3 (en) | 2002-02-18 |
WO1998005893A1 (en) | 1998-02-12 |
NO990552D0 (en) | 1999-02-05 |
NO990552L (en) | 1999-03-23 |
NO318535B1 (en) | 2005-04-11 |
US6513216B2 (en) | 2003-02-04 |
DE69707686D1 (en) | 2001-11-29 |
EP0916051A1 (en) | 1999-05-19 |
ES2166556T3 (en) | 2002-04-16 |
US20020040517A1 (en) | 2002-04-11 |
EP0916051B1 (en) | 2001-10-24 |
US6327763B2 (en) | 2001-12-11 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: FUTURE ALIGNMENTS LTD., UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STEPHEN, ROBERT;REEL/FRAME:010079/0962 Effective date: 19990210 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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FPAY | Fee payment |
Year of fee payment: 4 |
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FPAY | Fee payment |
Year of fee payment: 8 |
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AS | Assignment |
Owner name: EQUALIZER INTERNATIONAL LIMITED, UNITED KINGDOM Free format text: CHANGE OF NAME;ASSIGNOR:FUTURE ALIGNMENTS LTD.;REEL/FRAME:029779/0454 Effective date: 20050428 |
|
AS | Assignment |
Owner name: EQUALIZER INTERNATIONAL LIMITED, UNITED KINGDOM Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS: ABERDEEM SCIENCE AND ENERGY PARK PREVIOUSLY RECORDED ON REEL 029779 FRAME 0454. ASSIGNOR(S) HEREBY CONFIRMS THE SHOULD BE: ABERDEEN SCIENCE AND ENERGY PARK;ASSIGNOR:FUTURE ALIGNMENTS LTD.;REEL/FRAME:029854/0747 Effective date: 20050428 |
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FPAY | Fee payment |
Year of fee payment: 12 |