US20110100082A1 - Side Looper - Google Patents
Side Looper Download PDFInfo
- Publication number
- US20110100082A1 US20110100082A1 US12/608,338 US60833809A US2011100082A1 US 20110100082 A1 US20110100082 A1 US 20110100082A1 US 60833809 A US60833809 A US 60833809A US 2011100082 A1 US2011100082 A1 US 2011100082A1
- Authority
- US
- United States
- Prior art keywords
- guide
- product
- exit
- entry
- path
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
- B21B41/10—Loop deflectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C49/00—Devices for temporarily accumulating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
Definitions
- This invention relates generally to continuous hot rolling mills having two or more strands producing bars, rods and the like, and is concerned in particular with the provision of an improved side looper of the type employed at selected locations along the rolling lines of such mills.
- long products is intended to encompass round bars, rods and the like, as opposed to strips and other like flat products.
- loop is intended to define an arcuate deflection of the product.
- Side loopers are also employed to introduce loops between the successive roll stands. Side loopers typically produce smaller loops of less than about 120°, and as such are more compact and require less mill floor space as compared to repeaters.
- the loop is initially formed by guiding the product around a fixed arcuate guide wall, and then allowing the curvature of the loop to increase if the delivery speed of the product exiting from the upstream stand exceeds the take in speed of the downstream stand.
- a compensating decrease in the loop curvature is impeded by the looper's fixed guide wall, resulting in the development of unwanted tension in the product.
- the present invention addresses this problem by providing a side looper designed to accommodate both increases and decreases in the curvature of the loop.
- a side looper in accordance with the present invention is designed to form a loop in a longitudinally moving long product by directing the product along an arcuate path.
- the side looper includes an entry guide for feeding the product into the arcuate path and an exit guide for receiving the product exiting from the arcuate path.
- Inner and outer guide walls are arranged between the entry and exit guides. The guide walls are adjustable between mutually spaced closed positions fixing the curvature of the arcuate path, and open positions allowing the curvature of the path to either increase or decrease.
- FIG. 1 is a diagrammatic illustration of a portion of a continuous hot rolling mill employing loopers in accordance with the present invention
- FIG. 2 is an enlarged view of one of the loopers shown in FIG. 1 , with the guide walls in their closed positions;
- FIG. 3 is a view similar to FIG. 2 showing the guide walls in their open position.
- the last strand of a two strand hot rolling mill is depicted at 10 .
- the two product strands 12 typically round bar sections having diameters of at least 30 mm, exit roll stand 10 and are guided through side loopers 14 in accordance with the present invention before entering the roll stands 16 of two single strand continuations of the rolling mill.
- each looper 14 serves to direct the longitudinally moving long product 12 along an arcuate path P.
- An entry guide 18 directs the product into the path P, and an exit guide 20 receives the product exiting from the path.
- Inner and outer guide walls 22 , 24 are arranged between the entry and exit guides.
- the inner wall 22 is subdivided into entry and exit sections 22 a , 22 b pivotally mounted as at 26 to a base structure 28 , and connected as at 30 to a piston-cylinder type linear actuator 32 .
- the outer guide wall 24 is similarly subdivided into entry and exit sections 24 a , 24 b pivotally mounted to the base structure as at 34 , and connected as at 38 to separate linear actuators 35 .
- the linear actuators 32 , 38 serve as operating means for adjusting the guide walls 22 , 24 between mutually spaced closed positions fixing the curvature of path P, as shown in FIG. 2 , and open positions as shown in FIG. 3 .
- the guide walls are adjusted to their open positions, the product is free to follow arcuate paths of increasing curvature, as indicated by the broken lines P a-c , or to follow an arcuate path with a decreasing curvature, as indicated at P d .
- the guide walls 22 , 24 are adjusted to their closed positions to fix the curvature of the path P.
- the product is then directed via the entry guide 18 into and along the path and out through the exit guide 20 .
- the guide walls 22 , 24 are adjusted to their open positions to allow the curvature of the guide path to either increase or decrease as described above, while the product continues to travel along the path and through the looper.
- the guide walls 22 , 24 may be adjusted to their closed positions, thus urging the tail end back to the initial confined arcuate path P.
- the side looper is thus quickly readied to accept the front end of the next oncoming product, which minimizes the required gap between billets being processed by the mill.
- the looper of the present invention is capable of not only accommodating interstand speed imbalances where the delivery speed of the upstream stand 10 exceeds the take in speed of a downstream stand 16 (guide path curvature increases as depicted at P a-c , in FIG. 3 ), but also speed imbalances created by the take in speed of the downstream stand 16 exceeding the delivery speed of the upstream stand 10 (guide path curvature decreases as depicted at P d in FIG. 3 ).
- guide path curvature increases as depicted at P a-c , in FIG. 3
- speed imbalances created by the take in speed of the downstream stand 16 exceeding the delivery speed of the upstream stand 10 guide path curvature decreases as depicted at P d in FIG. 3 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Coiling Of Filamentary Materials In General (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
A side looper comprises an entry guide for directing a longitudinally moving long product into an arcuate path, an exit guide for receiving the product exiting from the arcuate path, and inner and outer guide walls arranged between the entry and exit guides. The guide walls are adjustable between mutually spaced closed positions fixing the curvature of the arcuate path, and open positions allowing the curvature of the arcuate path to either increase or decrease.
Description
- 1. Field of the Invention
- This invention relates generally to continuous hot rolling mills having two or more strands producing bars, rods and the like, and is concerned in particular with the provision of an improved side looper of the type employed at selected locations along the rolling lines of such mills.
- 2. Description of the Prior Art
- As herein employed, the term “long products” is intended to encompass round bars, rods and the like, as opposed to strips and other like flat products. Also, as herein employed, the term “loop” is intended to define an arcuate deflection of the product.
- During a rolling operation in a continuous hot rolling mill producing long products, it is not uncommon for the delivery speed of the product exiting from an upstream roll stand to vary from the take in speed of the next subsequent downstream roll stand. In order to deal with such speed variations, repeaters are sometimes employed between the successive roll stands. Repeaters operate to change the direction of the product by introducing a loop in the product of approximately 180°. A drawback with this arrangement, however, is that relatively large areas of the mill floor must be dedicated to accommodating the repeater loops.
- Side loopers are also employed to introduce loops between the successive roll stands. Side loopers typically produce smaller loops of less than about 120°, and as such are more compact and require less mill floor space as compared to repeaters. In a side loopers, the loop is initially formed by guiding the product around a fixed arcuate guide wall, and then allowing the curvature of the loop to increase if the delivery speed of the product exiting from the upstream stand exceeds the take in speed of the downstream stand. However, should a speed imbalance result from the downstream stand's take in speed exceeding the upstream stand's delivery speed, a compensating decrease in the loop curvature is impeded by the looper's fixed guide wall, resulting in the development of unwanted tension in the product.
- The present invention addresses this problem by providing a side looper designed to accommodate both increases and decreases in the curvature of the loop.
- A side looper in accordance with the present invention is designed to form a loop in a longitudinally moving long product by directing the product along an arcuate path. The side looper includes an entry guide for feeding the product into the arcuate path and an exit guide for receiving the product exiting from the arcuate path. Inner and outer guide walls are arranged between the entry and exit guides. The guide walls are adjustable between mutually spaced closed positions fixing the curvature of the arcuate path, and open positions allowing the curvature of the path to either increase or decrease.
- These and other features and advantages of the present invention will now be described in greater detail with reference to the accompanying drawings, wherein:
-
FIG. 1 is a diagrammatic illustration of a portion of a continuous hot rolling mill employing loopers in accordance with the present invention; -
FIG. 2 is an enlarged view of one of the loopers shown inFIG. 1 , with the guide walls in their closed positions; and -
FIG. 3 is a view similar toFIG. 2 showing the guide walls in their open position. - With reference initially to
FIG. 1 , the last strand of a two strand hot rolling mill is depicted at 10. The twoproduct strands 12, typically round bar sections having diameters of at least 30 mm,exit roll stand 10 and are guided throughside loopers 14 in accordance with the present invention before entering the roll stands 16 of two single strand continuations of the rolling mill. - With reference additionally to
FIGS. 2 and 3 , it will be seen that eachlooper 14 serves to direct the longitudinally movinglong product 12 along an arcuate path P. Anentry guide 18 directs the product into the path P, and anexit guide 20 receives the product exiting from the path. Inner andouter guide walls inner wall 22 is subdivided into entry andexit sections base structure 28, and connected as at 30 to a piston-cylinder typelinear actuator 32. Theouter guide wall 24 is similarly subdivided into entry andexit sections - The
linear actuators guide walls FIG. 2 , and open positions as shown inFIG. 3 . When the guide walls are adjusted to their open positions, the product is free to follow arcuate paths of increasing curvature, as indicated by the broken lines Pa-c, or to follow an arcuate path with a decreasing curvature, as indicated at Pd. - In operation, before a product enters the looper, the
guide walls entry guide 18 into and along the path and out through theexit guide 20. Following emergence of the product from the exit guide, theguide walls - As soon as the product exits from the
entry guide 18 and while the product is still traveling between the entry guide and theexit guide 20, theguide walls - In light of the above, it will now be appreciated by those skilled in the art that the looper of the present invention is capable of not only accommodating interstand speed imbalances where the delivery speed of the
upstream stand 10 exceeds the take in speed of a downstream stand 16 (guide path curvature increases as depicted at Pa-c, inFIG. 3 ), but also speed imbalances created by the take in speed of thedownstream stand 16 exceeding the delivery speed of the upstream stand 10 (guide path curvature decreases as depicted at Pd inFIG. 3 ). Thus, in the latter case, the development of unwanted tension in the product is avoided. - The foregoing description has been set forth to illustrate the invention and is not intended to be limiting. Further modifications of the described embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art. For example, one such modification might comprise the translational rather than pivotal adjustment of the
guide walls
Claims (6)
1. A side looper for directing a longitudinally moving long product along an arcuate path, said side looper comprising:
an entry guide for directing the product into said arcuate path;
an exit guide for receiving the product exiting from said path;
inner and outer guide walls arranged between said entry and exit guides; and
operating means for adjusting said guide walls between mutually spaced closed positions fixing the curvature of said path, and open positions allowing the curvature of said path to either increase or decrease.
2. The side looper of claim 1 wherein said inner and outer guide walls are subdivided into entry and exit sections adjustable between said closed and open positions.
3. The side looper of claim 2 wherein said entry and exit sections are pivotally adjustable between said closed and open positions.
4. The side looper of claim 2 wherein the entry and exit sections of said inner guide wall are connected to and pivotally adjustable by a single linear actuator.
5. A method of directing a longitudinally moving long product along an arcuate path extending between an entry guide and an exit guide, said method comprising:
fixing the curvature of said path between inner and outer guide walls adjusted to closed positions;
directing the product via said entry guide into and along said path and out through said exit guide; and
following emergence of said product from said exit guide, adjusting said inner and outer guide walls to open positions allowing the curvature of said path to either increase or decrease while the product continues to travel along said path.
6. The method of claim 5 wherein following exit of said product from said entry guide, and while said product is traveling between said entry and exit guides, adjusting said inner and outer guide walls to said closed positions.
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/608,338 US20110100082A1 (en) | 2009-10-29 | 2009-10-29 | Side Looper |
KR1020127010846A KR20120101368A (en) | 2009-10-29 | 2010-09-17 | Side looper |
CA2779203A CA2779203A1 (en) | 2009-10-29 | 2010-09-17 | Side looper |
MX2012004724A MX2012004724A (en) | 2009-10-29 | 2010-09-17 | Side looper. |
BR112012009970A BR112012009970A2 (en) | 2009-10-29 | 2010-09-17 | side looper |
EP10757539A EP2493635A1 (en) | 2009-10-29 | 2010-09-17 | Side looper |
JP2012536819A JP2013509302A (en) | 2009-10-29 | 2010-09-17 | Side looper |
PCT/US2010/049217 WO2011059566A1 (en) | 2009-10-29 | 2010-09-17 | Side looper |
CN2010800477909A CN102574177A (en) | 2009-10-29 | 2010-09-17 | Side looper |
RU2012121910/02A RU2012121910A (en) | 2009-10-29 | 2010-09-17 | LATER LOOP FORMER |
TW099136415A TW201119768A (en) | 2009-10-29 | 2010-10-26 | Side looper |
IN2385DEN2012 IN2012DN02385A (en) | 2009-10-29 | 2012-03-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/608,338 US20110100082A1 (en) | 2009-10-29 | 2009-10-29 | Side Looper |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110100082A1 true US20110100082A1 (en) | 2011-05-05 |
Family
ID=43602815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/608,338 Abandoned US20110100082A1 (en) | 2009-10-29 | 2009-10-29 | Side Looper |
Country Status (12)
Country | Link |
---|---|
US (1) | US20110100082A1 (en) |
EP (1) | EP2493635A1 (en) |
JP (1) | JP2013509302A (en) |
KR (1) | KR20120101368A (en) |
CN (1) | CN102574177A (en) |
BR (1) | BR112012009970A2 (en) |
CA (1) | CA2779203A1 (en) |
IN (1) | IN2012DN02385A (en) |
MX (1) | MX2012004724A (en) |
RU (1) | RU2012121910A (en) |
TW (1) | TW201119768A (en) |
WO (1) | WO2011059566A1 (en) |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
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US1911549A (en) * | 1933-05-30 | Automatic guide abjuster | ||
US1987204A (en) * | 1931-10-27 | 1935-01-08 | Harley C Mosley | Rolling mill and control mechanism therefor |
US2603989A (en) * | 1947-03-03 | 1952-07-22 | Morgan Construction Co | Continuous rolling mill |
US2815691A (en) * | 1953-11-13 | 1957-12-10 | United States Steel Corp | Rolling mill repeater |
US2816467A (en) * | 1952-04-02 | 1957-12-17 | Sandvikens Jernverks Ab | Rolling mill construction |
US2986193A (en) * | 1956-01-25 | 1961-05-30 | Lifetime Metal Building Co | Method of forming metal building elements |
US3447354A (en) * | 1967-02-02 | 1969-06-03 | Bethlehem Steel Corp | Strip guiding apparatus |
US3592035A (en) * | 1969-03-17 | 1971-07-13 | Bucciconi Eng Co | Strip transfer device |
US3718021A (en) * | 1970-09-22 | 1973-02-27 | V Ni I P Institur | Method of shaping sheet blanks to spherical form and a device to realize same |
US3740989A (en) * | 1971-03-31 | 1973-06-26 | Mesta Machine Co | Strip mill entry guides |
US4444388A (en) * | 1981-09-15 | 1984-04-24 | Bell & Howell Company | Stacking methods and apparatus |
US4520645A (en) * | 1982-01-26 | 1985-06-04 | Davy Mckee (Poole) Limited | Feeding thin foil-like material into a gap between a pair of rotatable rolls |
JPS60221112A (en) * | 1984-04-17 | 1985-11-05 | Nippon Steel Corp | Method of conveying hot h-beam while preventing bruise |
JPS6257707A (en) * | 1985-09-04 | 1987-03-13 | Sumitomo Electric Ind Ltd | Guiding device for hot rolling material |
JPS63303614A (en) * | 1987-06-02 | 1988-12-12 | Sumitomo Metal Ind Ltd | Path line changing apparatus |
US5149075A (en) * | 1991-01-15 | 1992-09-22 | Roll Systems, Inc. | Apparatus for separating folded web |
US5483738A (en) * | 1993-04-12 | 1996-01-16 | Molex Incorporated | Apparatus for making electrical harness having wire measuring apparatus equipped with anti-curling means |
US5606885A (en) * | 1993-12-27 | 1997-03-04 | Mannesmann Aktiengesellschaft | Device for the guiding away cold-rolled tubes behind a cold pilger rolling mill |
US5709119A (en) * | 1994-03-10 | 1998-01-20 | Sms Schloemann-Siemag Aktiengesellschaft | Method and arrangement for the controlled formation of rolling stock loops |
JPH10263665A (en) * | 1997-03-25 | 1998-10-06 | Kawasaki Steel Corp | Wear preventing method of side guide vertical roll and its device |
US6327885B1 (en) * | 1999-07-26 | 2001-12-11 | Voest-Alpine Industrieanlagenbau Gmbh | Rolling-mill installation |
US7062946B2 (en) * | 2001-09-06 | 2006-06-20 | Sms Meer Gmbh | Guide roller system for guiding the rods between the finishing stands of rod rolling mills |
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GB2088764B (en) * | 1980-12-04 | 1984-11-21 | Nippon Steel Corp | Rolling steel bar or rod |
JPS6061111A (en) * | 1983-09-12 | 1985-04-08 | Toshiba Corp | Control equipment of rolling mill for wire rod |
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JPH0530802Y2 (en) * | 1988-09-22 | 1993-08-06 | ||
CN201309074Y (en) * | 2008-09-27 | 2009-09-16 | 南方铝业(中国)有限公司 | Punching device for production line |
CN101513653A (en) * | 2008-12-31 | 2009-08-26 | 太仓市金鑫铜管有限公司 | Automatic lifting material rest |
-
2009
- 2009-10-29 US US12/608,338 patent/US20110100082A1/en not_active Abandoned
-
2010
- 2010-09-17 KR KR1020127010846A patent/KR20120101368A/en not_active Application Discontinuation
- 2010-09-17 JP JP2012536819A patent/JP2013509302A/en active Pending
- 2010-09-17 CA CA2779203A patent/CA2779203A1/en not_active Abandoned
- 2010-09-17 CN CN2010800477909A patent/CN102574177A/en active Pending
- 2010-09-17 BR BR112012009970A patent/BR112012009970A2/en not_active IP Right Cessation
- 2010-09-17 MX MX2012004724A patent/MX2012004724A/en unknown
- 2010-09-17 EP EP10757539A patent/EP2493635A1/en not_active Withdrawn
- 2010-09-17 WO PCT/US2010/049217 patent/WO2011059566A1/en active Application Filing
- 2010-09-17 RU RU2012121910/02A patent/RU2012121910A/en not_active Application Discontinuation
- 2010-10-26 TW TW099136415A patent/TW201119768A/en unknown
-
2012
- 2012-03-20 IN IN2385DEN2012 patent/IN2012DN02385A/en unknown
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1911549A (en) * | 1933-05-30 | Automatic guide abjuster | ||
US1987204A (en) * | 1931-10-27 | 1935-01-08 | Harley C Mosley | Rolling mill and control mechanism therefor |
US2603989A (en) * | 1947-03-03 | 1952-07-22 | Morgan Construction Co | Continuous rolling mill |
US2816467A (en) * | 1952-04-02 | 1957-12-17 | Sandvikens Jernverks Ab | Rolling mill construction |
US2815691A (en) * | 1953-11-13 | 1957-12-10 | United States Steel Corp | Rolling mill repeater |
US2986193A (en) * | 1956-01-25 | 1961-05-30 | Lifetime Metal Building Co | Method of forming metal building elements |
US3447354A (en) * | 1967-02-02 | 1969-06-03 | Bethlehem Steel Corp | Strip guiding apparatus |
US3592035A (en) * | 1969-03-17 | 1971-07-13 | Bucciconi Eng Co | Strip transfer device |
US3718021A (en) * | 1970-09-22 | 1973-02-27 | V Ni I P Institur | Method of shaping sheet blanks to spherical form and a device to realize same |
US3740989A (en) * | 1971-03-31 | 1973-06-26 | Mesta Machine Co | Strip mill entry guides |
US4444388A (en) * | 1981-09-15 | 1984-04-24 | Bell & Howell Company | Stacking methods and apparatus |
US4520645A (en) * | 1982-01-26 | 1985-06-04 | Davy Mckee (Poole) Limited | Feeding thin foil-like material into a gap between a pair of rotatable rolls |
JPS60221112A (en) * | 1984-04-17 | 1985-11-05 | Nippon Steel Corp | Method of conveying hot h-beam while preventing bruise |
JPS6257707A (en) * | 1985-09-04 | 1987-03-13 | Sumitomo Electric Ind Ltd | Guiding device for hot rolling material |
JPS63303614A (en) * | 1987-06-02 | 1988-12-12 | Sumitomo Metal Ind Ltd | Path line changing apparatus |
US5149075A (en) * | 1991-01-15 | 1992-09-22 | Roll Systems, Inc. | Apparatus for separating folded web |
US5483738A (en) * | 1993-04-12 | 1996-01-16 | Molex Incorporated | Apparatus for making electrical harness having wire measuring apparatus equipped with anti-curling means |
US5606885A (en) * | 1993-12-27 | 1997-03-04 | Mannesmann Aktiengesellschaft | Device for the guiding away cold-rolled tubes behind a cold pilger rolling mill |
US5709119A (en) * | 1994-03-10 | 1998-01-20 | Sms Schloemann-Siemag Aktiengesellschaft | Method and arrangement for the controlled formation of rolling stock loops |
JPH10263665A (en) * | 1997-03-25 | 1998-10-06 | Kawasaki Steel Corp | Wear preventing method of side guide vertical roll and its device |
US6327885B1 (en) * | 1999-07-26 | 2001-12-11 | Voest-Alpine Industrieanlagenbau Gmbh | Rolling-mill installation |
US7062946B2 (en) * | 2001-09-06 | 2006-06-20 | Sms Meer Gmbh | Guide roller system for guiding the rods between the finishing stands of rod rolling mills |
Also Published As
Publication number | Publication date |
---|---|
BR112012009970A2 (en) | 2016-03-08 |
TW201119768A (en) | 2011-06-16 |
JP2013509302A (en) | 2013-03-14 |
CN102574177A (en) | 2012-07-11 |
KR20120101368A (en) | 2012-09-13 |
IN2012DN02385A (en) | 2015-08-21 |
EP2493635A1 (en) | 2012-09-05 |
CA2779203A1 (en) | 2011-05-19 |
WO2011059566A1 (en) | 2011-05-19 |
MX2012004724A (en) | 2012-05-29 |
RU2012121910A (en) | 2013-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MORGAN CONSTRUCTION COMPANY, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHORE, T. MICHAEL;REEL/FRAME:023444/0441 Effective date: 20091022 |
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AS | Assignment |
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