EP1236844A1 - A screeding device - Google Patents
A screeding device Download PDFInfo
- Publication number
- EP1236844A1 EP1236844A1 EP02394019A EP02394019A EP1236844A1 EP 1236844 A1 EP1236844 A1 EP 1236844A1 EP 02394019 A EP02394019 A EP 02394019A EP 02394019 A EP02394019 A EP 02394019A EP 1236844 A1 EP1236844 A1 EP 1236844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screeding
- concrete
- region
- engaging member
- leading
- 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.)
- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
Definitions
- This invention relates to a device for screeding a region of material, in particular for screeding a region of freshly laid concrete.
- US 4,316,715 discloses a triangular support frame structure having front and rear screed blades. Vibrators spaced at intervals along the blades impart vibratory motion to the blades as the device is translated over a region of concrete in a winching arrangement.
- This invention is aimed at overcoming at least some of the problems associated with known screeding devices.
- a device for screeding a region of material comprising:-
- the plurality of vibrators spaced-apart along the beam ensure that the beam is adequately vibrated along its entire length.
- the screeding device of the invention is suitable for screeding large regions of concrete with a width of, for example, 5m or greater.
- the beam has at least one access opening to the beam interior housing space.
- the access opening is provided in the trailing side of the beam.
- the device comprises at least one closure for selective closure of the access opening.
- the access opening to the beam interior housing space enables an operator to quickly and easily gain access to the vibrators, for example for maintenance, or repair, or replacement of a vibrator.
- the device comprises a removable cover for the beam.
- the cover may be of a plastics material.
- the device comprises means to draw the beam over a region of material in a winching arrangement.
- the beam preferably comprises means to facilitate releasable jointing of the beam to an adjacent beam.
- the jointing means may comprise at least one male member protruding from one beam for engagement with at least one co-operating female member of another beam.
- the width of the region of material that can be screeded in a single pass is increased.
- the beam comprises means to align the beam relative to an adjacent beam upon jointing.
- the alignment means comprises at least one male member protruding from one beam for mating with at least one co-operating female member of another beam.
- the alignment means is particularly advantageous when moving two or more jointed beams over a long region of material being screeded. By correctly aligning the adjacent beams, this helps to prevent skewing of the path of the beams over the region of material.
- the material engaging member extends beyond an end of the beam to form a screeding bridge between the beam and an adjacent beam.
- the screeding bridge arrangement helps to ensure that no region of material remains unscreeded between adjacent beams.
- the material engaging member may extend from a base side of the beam to support the base side above the material during screeding.
- the beam may have a substantially trapezoidal shape in transverse cross-section.
- the leading side and the trailing side of the beam diverge outwardly towards a base side of the beam.
- the leading material engaging member may be configured to divert material, which has accumulated on the member, forward, in the direction of travel of the beam, in a generally rotational movement.
- the leading material engaging member is shaped to scoop accumulated material forward in a generally rotational movement.
- the beam may be of stainless steel.
- the device 1 comprises a beam 2 having a leading material engaging member and a trailing material engaging member, and a plurality of vibrators 11.
- the device 1 may be used to screed a region of material, such as a region of freshly laid concrete 25, by vibrating the beam 2 as the beam 2 is moved over the region of concrete 25 with the material engaging members in contact with the concrete 25.
- the beam 2 comprises an "inverted-U" shaped upper plate 7, a base plate 8, and two “A" shaped end plates 9.
- the plates 7, 8, 9 of the beam 2 are fixed together by means of rivets, and when assembled the beam 2 is hollow and defines an interior housing space 10 within the beam 2.
- the assembled beam 2 has a substantially trapezoidal shape in transverse cross-section.
- leading and trailing material engaging members are provided in this case by a leading blade 3 and a trailing blade 4 respectively.
- the leading blade 3 extends forwardly from a leading side 5 of the upper plate 7, and the trailing blade 4 extends rearwardly from a trailing side 6 of the upper plate 7.
- Both of the blades 3, 4 extend downwardly from the base plate 8. Rivets are used to fix both the blades 3, 4 to the upper plate 7 and the base plate 8 (Fig. 2).
- three air-operated vibrators 11 are provided located in the beam interior housing space 10, and spaced-apart along the beam 2 with a distance of approximately 0.4m between each vibrator 11, as illustrated in Figs. 5 and 6.
- a plurality of corresponding access openings 13 to the beam interior 10 are provided in the trailing side 6 of the upper plate 7. The openings 13 enable an operator of the screeding device 1 to gain access to any vibrator 11 within the beam interior 10, for example for repair or maintenance or replacement of a vibrator 11, without having to dismantle the beam 2.
- the vibrators 11 are held in place on the base plate 8 by means of two cross bars 12, as illustrated in Figs. 3 and 4.
- the cross bars 12, which are in contact with the vibrator 11, assist in distributing the vibrational forces to the upper plate 7 and the blades 3, 4.
- the screeding device 1 further comprises means to draw the beam 2 over the region of concrete 25 in a winching arrangement.
- the winching means is provided by two connecting lines 15, with hooks 17 at ends 18 of the lines 15.
- Each connecting line 15 is normally wound around a reel 16, however the line 15 may be unwound from the reel 16 and rewound around the reel 16 by rotating a handle 19.
- braces 20 support the handles 19 and the reels 16 at a suitable height above the concrete 25.
- Each brace 20 may be fixed to the end plate 9 by any suitable means, such as bolting or welding.
- the beam 2 comprises means to facilitate releasable jointing of the beam 2 to a beam 2 1 of another similar screeding device 1 1 (Fig. 7).
- the jointing means is provided, in this case, by a male member, such as a threaded screw 21, protruding from the end plate 9 1 of one beam 2 1 for engagement with a co-operating female member, such as a threaded tube 22, on the end plate 9 of the other beam 2.
- leading blades 3, 3 1 and the trailing blades 4, 4 1 extend beyond the ends of the beams 2, 2 1 , typically by approximately 75mm, to form a screeding bridge between adjacent beams 2, 2 1 when jointed together (Fig. 7).
- a lock nut 23 is also provided for releasably locking the two beams 2, 2 1 together in the position illustrated in Fig. 7 in which the blades 3, 3 1 , 4, 4 1 of adjacent beams 2, 2 1 abut one another end-to-end.
- the screw 21, the tube 22 and the nut 23 are all right hand threaded.
- This simple threaded, nut and bolt jointing arrangement enables two or more screeding devices 1, 1 1 to be quickly and easily jointed together end-to-end to extend the width of the region of concrete that can be screeded using the screeding device of the invention.
- Splice plates may be used in addition for a more secure jointing arrangement.
- the beam 2 is constructed of stainless steel, which enables the beam 2 to be spray-cleaned and drip-dried without rusting, while also providing for a sufficiently rigid beam 2.
- the screeding device 1 In use, the screeding device 1 is located resting upon the region of freshly laid concrete 25 to be screeded, with the blades 3, 4 in contact with the concrete 25, and the base plate 8 supported slightly above the concrete 25 (Fig. 2).
- the beam 2 extends over the entire width of the concrete 25 from one side 30 of the concrete framework to the other side 31 of the concrete framework (Fig. 5).
- the handles 19 are rotated to unwind the connecting lines 15 from the reels 16.
- the unwound connecting lines 15 are then lead around pulleys 27, and the hooks 17 are engaged with an external support, such as the end of the concrete framework 32 (Figs. 2 and 5).
- the vibrators 11 cause the blades 3, 4, which are in contact with the concrete, to vibrate. In this manner, the blades 3, 4 screed the concrete 2 into a smooth, levelled layer as the beam 2 moves over the concrete 25.
- the hooks 17 are disengaged from the framework 32, and the connecting lines 15 are rewound around the reels 16.
- two or more screeding devices 1 can be jointed together end-to-end using the jointing means, as described above with reference to Figs. 6 and 7. In this manner any width of concrete can be screeded in a single pass using the screeding device 1, or an assembly of two or more of the screeding devices of the invention.
- the screeding device 1 may comprise closures to enable selective closure of the access openings 13.
- the closures provide further protection against concrete or other unwanted material entering the beam interior housing space 10.
- the access openings 13 could be provided in the leading side 5 of the upper plate 7.
- a removable cover may be provided for the beam, for example a heavy plastics tarpaulin.
- the cover acts as an external sheath to prevent concrete attaching to the beam 2.
- any type of vibrator may be used with the screeding device 1 according to the invention.
- a scoop 60 may be provided on the leading blade 3 of the beam 2, as illustrated in Fig. 8.
- the scoop 60 is shaped to divert concrete, which has accumulated on the blade 3, forward, in the direction of travel of the beam 2, in a generally rotational movement. In this way, the scoop 60 helps to minimise clogging or excess accumulation of concrete on the leading blade 3.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A device 1 for screeding a region of freshly laid concrete 25 comprises a beam 2,
a leading blade 3, and a trailing blade 4. The beam 2 is hollow and defines an
interior housing space 10 within the beam 2. Three air-operated vibrators 11 are
provided located in the beam interior housing space 10, and spaced-apart along
the beam 2. A plurality of corresponding access openings 13 to the beam interior
10 are provided in the trailing side of the beam 2 for gaining access to any of the
vibrators 11 within the beam interior 10. The device 1 is used to screed a region
of concrete 25 by vibrating the beam 2 as the beam 2 is moved over the region of
concrete 25 with the blades 3, 4 in contact with the concrete 25. A winching
arrangement may be used to draw the beam 2 over the region of concrete 25.
Description
- This invention relates to a device for screeding a region of material, in particular for screeding a region of freshly laid concrete.
- Devices for screeding a relatively large region of concrete are known. For example, US 4,316,715 (Allen) discloses a triangular support frame structure having front and rear screed blades. Vibrators spaced at intervals along the blades impart vibratory motion to the blades as the device is translated over a region of concrete in a winching arrangement.
- However, these devices suffer from a number of disadvantages, in particular concrete tends to stick to and infiltrate parts of the device during screeding of a region of concrete. If concrete is allowed to set on the device, the device becomes very heavy and difficult to move. Thorough cleaning of the concrete from all parts of these complex devices can be a time-consuming and tedious task. In addition, the concrete could damage the vibrating components of the device.
- This invention is aimed at overcoming at least some of the problems associated with known screeding devices.
- According to the invention there is provided a device for screeding a region of material, the device comprising:-
- a beam having a leading material engaging member extending from a leading side of the beam, and a trailing material engaging member extending from a trailing side of the beam;
- the beam being at least partially hollow to define an interior housing space within the beam; and
- a plurality of vibrators located in the beam interior housing space, and spaced-apart along the beam for vibrating the beam as the beam is moved over a region of material to screed the material;
-
- By locating the vibrators in the beam interior housing space, this ensures that concrete and/or other material thrown up during the vibrational screeding action hits the exterior of the beam only. The vibrators therefore will be prevented from becoming dirtied or clogged or damaged by concrete and/or other material during screeding. Cleaning of the screeding device after use is thus a relatively simple and quick task as only the beam exterior needs to be cleaned.
- The plurality of vibrators spaced-apart along the beam ensure that the beam is adequately vibrated along its entire length. Thus the screeding device of the invention is suitable for screeding large regions of concrete with a width of, for example, 5m or greater.
- In one embodiment of the invention the beam has at least one access opening to the beam interior housing space. Preferably the access opening is provided in the trailing side of the beam. Ideally the device comprises at least one closure for selective closure of the access opening.
- The access opening to the beam interior housing space enables an operator to quickly and easily gain access to the vibrators, for example for maintenance, or repair, or replacement of a vibrator.
- In one case the device comprises a removable cover for the beam. The cover may be of a plastics material.
- In a preferred embodiment the device comprises means to draw the beam over a region of material in a winching arrangement.
- The beam preferably comprises means to facilitate releasable jointing of the beam to an adjacent beam. The jointing means may comprise at least one male member protruding from one beam for engagement with at least one co-operating female member of another beam.
- By jointing the beam to an adjacent beam, the width of the region of material that can be screeded in a single pass is increased.
- In another case the beam comprises means to align the beam relative to an adjacent beam upon jointing. Preferably the alignment means comprises at least one male member protruding from one beam for mating with at least one co-operating female member of another beam.
- The alignment means is particularly advantageous when moving two or more jointed beams over a long region of material being screeded. By correctly aligning the adjacent beams, this helps to prevent skewing of the path of the beams over the region of material.
- In another preferred embodiment the material engaging member extends beyond an end of the beam to form a screeding bridge between the beam and an adjacent beam.
- The screeding bridge arrangement helps to ensure that no region of material remains unscreeded between adjacent beams.
- The material engaging member may extend from a base side of the beam to support the base side above the material during screeding.
- In one case the beam may have a substantially trapezoidal shape in transverse cross-section. Preferably the leading side and the trailing side of the beam diverge outwardly towards a base side of the beam.
- The leading material engaging member may be configured to divert material, which has accumulated on the member, forward, in the direction of travel of the beam, in a generally rotational movement. Ideally the leading material engaging member is shaped to scoop accumulated material forward in a generally rotational movement.
- The beam may be of stainless steel.
- The invention will be more clearly understood from the following description of some embodiments thereof, given by way of example only, with reference to the accompanying drawings, in which:-
- Fig. 1 is a partially exploded, perspective view of a device according to the invention for screeding a region of material;
- Fig. 2 is partially cross-sectional, end view of the screeding device of Fig. 1;
- Fig. 3 is a partially cut-away, perspective view of part of the screeding device of Fig. 1;
- Fig. 4 is an enlarged, perspective view of a vibrator of the screeding device of Fig. 3;
- Fig. 5 is a plan view of the screeding device of Fig. 1 in use, screeding a region of material;
- Fig. 6 is a side view of the screeding device of Fig. 1;
- Fig. 7 is an enlarged, side view of the screeding device of Fig. 6 jointed to another screeding device similar to the screeding device of Fig. 6; and
- Fig. 8 is a partially cut-away, perspective view of another screeding device according to the invention.
-
- Referring to the drawings and initially to Figs. 1 to 7 thereof, there is illustrated a
device 1 according to the invention for screeding a region of material. Thedevice 1 comprises abeam 2 having a leading material engaging member and a trailing material engaging member, and a plurality ofvibrators 11. Thedevice 1 may be used to screed a region of material, such as a region of freshly laidconcrete 25, by vibrating thebeam 2 as thebeam 2 is moved over the region ofconcrete 25 with the material engaging members in contact with theconcrete 25. - As illustrated in Figs. 1 and 2, the
beam 2 comprises an "inverted-U" shapedupper plate 7, abase plate 8, and two "A" shapedend plates 9. Theplates beam 2 are fixed together by means of rivets, and when assembled thebeam 2 is hollow and defines aninterior housing space 10 within thebeam 2. As illustrated in Fig. 2, the assembledbeam 2 has a substantially trapezoidal shape in transverse cross-section. - The leading and trailing material engaging members are provided in this case by a leading
blade 3 and atrailing blade 4 respectively. As illustrated in Fig. 2, the leadingblade 3 extends forwardly from a leadingside 5 of theupper plate 7, and thetrailing blade 4 extends rearwardly from atrailing side 6 of theupper plate 7. Both of theblades base plate 8. Rivets are used to fix both theblades upper plate 7 and the base plate 8 (Fig. 2). - In this case, three air-operated
vibrators 11 are provided located in the beaminterior housing space 10, and spaced-apart along thebeam 2 with a distance of approximately 0.4m between eachvibrator 11, as illustrated in Figs. 5 and 6. A plurality ofcorresponding access openings 13 to thebeam interior 10 are provided in thetrailing side 6 of theupper plate 7. Theopenings 13 enable an operator of thescreeding device 1 to gain access to anyvibrator 11 within thebeam interior 10, for example for repair or maintenance or replacement of avibrator 11, without having to dismantle thebeam 2. - The
vibrators 11 are held in place on thebase plate 8 by means of twocross bars 12, as illustrated in Figs. 3 and 4. The cross bars 12, which are in contact with thevibrator 11, assist in distributing the vibrational forces to theupper plate 7 and theblades - The
screeding device 1 further comprises means to draw thebeam 2 over the region of concrete 25 in a winching arrangement. In this case, the winching means is provided by two connectinglines 15, withhooks 17 at ends 18 of thelines 15. - Each connecting
line 15 is normally wound around areel 16, however theline 15 may be unwound from thereel 16 and rewound around thereel 16 by rotating ahandle 19. As illustrated in Fig. 2, braces 20 support thehandles 19 and thereels 16 at a suitable height above the concrete 25. Eachbrace 20 may be fixed to theend plate 9 by any suitable means, such as bolting or welding. - As illustrated in Figs. 6 and 7, the
beam 2 comprises means to facilitate releasable jointing of thebeam 2 to abeam 21 of another similar screeding device 11 (Fig. 7). The jointing means is provided, in this case, by a male member, such as a threadedscrew 21, protruding from theend plate 91 of onebeam 21 for engagement with a co-operating female member, such as a threadedtube 22, on theend plate 9 of theother beam 2. - The leading
blades blades beams adjacent beams - A
lock nut 23 is also provided for releasably locking the twobeams blades adjacent beams - Preferably the
screw 21, thetube 22 and thenut 23 are all right hand threaded. - This simple threaded, nut and bolt jointing arrangement enables two or
more screeding devices - Splice plates may be used in addition for a more secure jointing arrangement.
- The
beam 2 is constructed of stainless steel, which enables thebeam 2 to be spray-cleaned and drip-dried without rusting, while also providing for a sufficientlyrigid beam 2. - In use, the
screeding device 1 is located resting upon the region of freshly laid concrete 25 to be screeded, with theblades base plate 8 supported slightly above the concrete 25 (Fig. 2). - In this case, the
beam 2 extends over the entire width of the concrete 25 from oneside 30 of the concrete framework to theother side 31 of the concrete framework (Fig. 5). - The
handles 19 are rotated to unwind the connectinglines 15 from thereels 16. The unwound connectinglines 15 are then lead around pulleys 27, and thehooks 17 are engaged with an external support, such as the end of the concrete framework 32 (Figs. 2 and 5). - By rotating the
handles 19 in the opposite direction, the connectinglines 15 are rewound around thereels 16. This winching action draws thebeam 2 over the concrete 25 towards the hooked ends 18 of the connectinglines 15, as illustrated in Fig. 5. - As the
beam 2 moves over the concrete 25, thevibrators 11 cause theblades blades concrete 2 into a smooth, levelled layer as thebeam 2 moves over the concrete 25. - After use, the
hooks 17 are disengaged from theframework 32, and the connectinglines 15 are rewound around thereels 16. - In the case when it is desired to screed a wider region of concrete, two or
more screeding devices 1 can be jointed together end-to-end using the jointing means, as described above with reference to Figs. 6 and 7. In this manner any width of concrete can be screeded in a single pass using thescreeding device 1, or an assembly of two or more of the screeding devices of the invention. - It will be appreciated that the
screeding device 1 may comprise closures to enable selective closure of theaccess openings 13. The closures provide further protection against concrete or other unwanted material entering the beaminterior housing space 10. Also theaccess openings 13 could be provided in the leadingside 5 of theupper plate 7. - A removable cover may be provided for the beam, for example a heavy plastics tarpaulin. The cover acts as an external sheath to prevent concrete attaching to the
beam 2. To remove concrete from the cover, the cover may be removed and washed as required. - It will also be appreciated that any type of vibrator may be used with the
screeding device 1 according to the invention. - A
scoop 60 may be provided on theleading blade 3 of thebeam 2, as illustrated in Fig. 8. Thescoop 60 is shaped to divert concrete, which has accumulated on theblade 3, forward, in the direction of travel of thebeam 2, in a generally rotational movement. In this way, thescoop 60 helps to minimise clogging or excess accumulation of concrete on theleading blade 3. - The invention is not limited to the embodiments hereinbefore described, with reference to the accompanying drawings, which may be varied in construction and detail.
Claims (10)
- A device for screeding a region of material, the device comprising:-a beam having a leading material engaging member extending from a leading side of the beam, and a trailing material engaging member extending from a trailing side of the beam;the beam being at least partially hollow to define an interior housing space within the beam; anda plurality of vibrators located in the beam interior housing space, and spaced-apart along the beam for vibrating the beam as the beam is moved over a region of material to screed the material;
- A device as claimed in claim 1 wherein the beam has at least one access opening to the beam interior housing space, preferably the access opening is provided in the trailing side of the beam, preferably the device comprises at least one closure for selective closure of the access opening.
- A device as claimed in claim 1 or 2 wherein the device comprises a removable cover for the beam, preferably the cover is of a plastics material.
- A device as claimed in any preceding claim wherein the device comprises means to draw the beam over a region of material in a winching arrangement.
- A device as claimed in any preceding claim wherein the beam comprises means to facilitate releasable jointing of the beam to an adjacent beam, preferably the jointing means comprises at least one male member protruding from one beam for engagement with at least one co-operating female member of another beam.
- A device as claimed in claim 5 wherein the beam comprises means to align the beam relative to an adjacent beam upon jointing, preferably the alignment means comprises at least one male member protruding from one beam for mating with at least one co-operating female member of another beam.
- A device as claimed in any preceding claim wherein the material engaging member extends beyond an end of the beam to form a screeding bridge between the beam and an adjacent beam, preferably the material engaging member extends from a base side of the beam to support the base side above the material during screeding.
- A device as claimed in any preceding claim wherein the beam has a substantially trapezoidal shape in transverse cross-section, preferably the leading side and the trailing side of the beam diverge outwardly towards a base side of the beam.
- A device as claimed in any preceding claim wherein the leading material engaging member is configured to divert material, which has accumulated on the member, forward, in the direction of travel of the beam, in a generally rotational movement, preferably the leading material engaging member is shaped to scoop accumulated material forward in a generally rotational movement.
- A device as claimed in any preceding claim wherein the beam is of stainless steel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE20010135 | 2001-02-09 | ||
IE20010135 | 2001-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1236844A1 true EP1236844A1 (en) | 2002-09-04 |
Family
ID=11042736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02394019A Withdrawn EP1236844A1 (en) | 2001-02-09 | 2002-02-08 | A screeding device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1236844A1 (en) |
GB (1) | GB2372773B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010072879A1 (en) * | 2008-12-23 | 2010-07-01 | Excavaciones Breogan-Hugo, S.L. | Device for laying reinforced concrete on surfaces |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014530382A (en) * | 2011-10-01 | 2014-11-17 | ジョンソン コントロールズオートモーティブ エレクトロニクス エスエイエス | Head-up display with multiple projection planes |
CN111021201B (en) * | 2020-01-02 | 2021-08-31 | 广东博智林机器人有限公司 | Slurry trowelling device and evener |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289248A (en) * | 1940-06-05 | 1942-07-07 | Kalman Floor Co | Method of treating concrete |
US4340351A (en) * | 1981-02-13 | 1982-07-20 | Owens Joe M | Vibratory concrete screed with eccentric drive shaft |
US4349295A (en) * | 1980-03-21 | 1982-09-14 | Morrison Donald R | Structural ridge member for vibrating concrete screeds |
US5540519A (en) * | 1995-01-31 | 1996-07-30 | Weber; Doug J. | Portable vibratory wet screed |
US5803656A (en) * | 1996-10-31 | 1998-09-08 | Turck; Jeffrey | Powered, roler-type concrete screed |
EP0995859A1 (en) * | 1998-10-19 | 2000-04-26 | Bouwmachinefabrik Lievers B.V. | Vibratory screed device for levelling freshly poured concrete surfaces |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4316715A (en) * | 1979-04-26 | 1982-02-23 | Allen Engineering Corporation | Vibratory concrete screed having an adjustable extension bracket |
US4701071A (en) * | 1986-07-23 | 1987-10-20 | Morrison Donald R | Portable screed |
US4931008A (en) * | 1989-01-04 | 1990-06-05 | Morrison Donald R | Quick disassembly screed construction |
GB2263715A (en) * | 1992-01-09 | 1993-08-04 | Leonard Alfred Edney | Screed rail |
-
2002
- 2002-02-08 GB GB0203128A patent/GB2372773B/en not_active Expired - Fee Related
- 2002-02-08 EP EP02394019A patent/EP1236844A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289248A (en) * | 1940-06-05 | 1942-07-07 | Kalman Floor Co | Method of treating concrete |
US4349295A (en) * | 1980-03-21 | 1982-09-14 | Morrison Donald R | Structural ridge member for vibrating concrete screeds |
US4340351A (en) * | 1981-02-13 | 1982-07-20 | Owens Joe M | Vibratory concrete screed with eccentric drive shaft |
US5540519A (en) * | 1995-01-31 | 1996-07-30 | Weber; Doug J. | Portable vibratory wet screed |
US5803656A (en) * | 1996-10-31 | 1998-09-08 | Turck; Jeffrey | Powered, roler-type concrete screed |
EP0995859A1 (en) * | 1998-10-19 | 2000-04-26 | Bouwmachinefabrik Lievers B.V. | Vibratory screed device for levelling freshly poured concrete surfaces |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010072879A1 (en) * | 2008-12-23 | 2010-07-01 | Excavaciones Breogan-Hugo, S.L. | Device for laying reinforced concrete on surfaces |
ES2346171A1 (en) * | 2008-12-23 | 2010-10-11 | Excavaciones Breogan- Hugo, S.L | Device for laying reinforced concrete on surfaces |
Also Published As
Publication number | Publication date |
---|---|
GB0203128D0 (en) | 2002-03-27 |
GB2372773A (en) | 2002-09-04 |
IE20020090A1 (en) | 2002-09-18 |
GB2372773B (en) | 2004-11-03 |
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