USRE38303E1 - Particle screening system - Google Patents

Particle screening system Download PDF

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Publication number
USRE38303E1
USRE38303E1 US08/775,825 US77582596A USRE38303E US RE38303 E1 USRE38303 E1 US RE38303E1 US 77582596 A US77582596 A US 77582596A US RE38303 E USRE38303 E US RE38303E
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US
United States
Prior art keywords
screen panel
screening apparatus
modules
protrusions
recesses
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.)
Expired - Lifetime
Application number
US08/775,825
Inventor
Terry R Askew
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FLSmidth AS
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Weatherford Australia Pty Ltd
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3774138&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=USRE38303(E1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Weatherford Australia Pty Ltd filed Critical Weatherford Australia Pty Ltd
Priority to US08/775,825 priority Critical patent/USRE38303E1/en
Assigned to USF JOHNSON SCREENS PTY LTD. reassignment USF JOHNSON SCREENS PTY LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WESTERN WIRE WORKS, INC. AN OREGON CORPORATION
Assigned to WEATHERFORD AUSTRALIA PTY. LIMITED reassignment WEATHERFORD AUSTRALIA PTY. LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: USF JOHNSON SCREENS PTY LTD.
Application granted granted Critical
Publication of USRE38303E1 publication Critical patent/USRE38303E1/en
Assigned to LUDOWICI AUSTRALIA PTY LTD reassignment LUDOWICI AUSTRALIA PTY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ICR POLIURETANOS Y GOMAS S.A., ICR-JOHNSON SCREENS PERU S.A.C., JOHNSON SCREENS (AUSTRALIA) PTY. LIMITED, JOHNSON SCREENS, INC., USF JOHNSON SCREENS PTY. LTD., WEATHERFORD AUSTRALIA PTY. LIMITED, WEATHERFORD/LAMB, INC.
Anticipated expiration legal-status Critical
Assigned to FLSMIDTH A/S reassignment FLSMIDTH A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LUDOWICI AUSTRALIA PTY LTD
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/42—Gratings; Grid-like panels

Definitions

  • the present invention relates to particle screening system industrial screens and more particularly to a screen module a plurality of which are retained by a supporting structure.
  • apparatus comprising:
  • a supporting structure adapted to support a plurality of said screen panel modules in side-by-side and/or end-to-end abutting relationship, the supporting structure comprising a plurality of supporting bars onto at least one of which is mounted a fall rail member, said screen panel module(s) comprising mating means adapted to engage with said rail member so as to secure said screen panel module(s) thereto.
  • FIG. 1 is a schematic perspective view of a screen panel and support assembly therefor
  • FIG. 2 is an exploded schematic sectional end view of a central support rail and an edge of a screen panel
  • FIG. 3 is a schematic sectional end view of a support member supporting the rail of FIG. 2 and abutting edges of adjacent screen panels.
  • the support assembly 2 includes a plurality of support bars 3 which are arranged to engage at least a portion of the periphery 4 of the panels 1 .
  • the panels may be clamped into position with respect to bars 3 .
  • the operation of the optional clamping arrangement 5 is described in the applicant's Australian Patent Application No. 27046/88.
  • wedge means 11 drive member 10 downwardly onto support bars 3 to firmly secure screen module 1 in place.
  • Rail member 6 is a central rail adapted to support in side-by-side abutting relationship adjacent screen panels 1 .
  • Rail member 6 ′ is a side rail being essentially equivalent to one half of rail member 6 .
  • Cut-outs 17 are provided in rail member and protuberances 20 in FIG. 2 cooperate with cut-outs 17 6 to provide means by which movement in directions B and C of panels 1 is prevented.
  • Rail members 6 may be fastened to support bars 3 by means of bolt 7 as shown In FIG. 3 .
  • Bolts 7 are located at various longitudinal locations along track 6 .
  • rail members 6 (and 6 ′) are provided with protrusions 12 being designed to mate with recesses 14 in the edge 4 of the screen panel 1 . Additionally, protrusion 12 is provided with a lip 13 designed to engage with groove 15 in edge 4 of screen 1 thus providing means by which screen 1 is held firmly in place by track 6 .
  • screen members 1 being formed of plastics material may be reinforced with reinforcing bars 16 extending longitudinally and/or transversely therein.
  • screen members 1 are Individually individually snapped onto tracks 6 and 6 ′ by application of a force in the direction of arrow A. As a plurality of screen members replace much larger conventional unitary screen members this process is much easier and safer than otherwise possible. Once one screen member is in place, further screen members 1 are similarly snapped into tracks 6 and 6 ′ to abut with the screen member previously put in place and any adjacent screen members.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

A particle screening system is a modular industrial screen system having a number of screen panel modules supported side-by-side and/or end-to-end by a supporting structure assembly. The supporting structure assembly has a number of support bars arranged to support peripheral portions of each screen panel module by way of rail members. The rail members have protrusions which are designed to meet with recesses in the screen panel modules using a snap-engagement.

Description

This is a continuation of application Ser. No. 07/821,249 filed Jan. 10, 1992, now abandoned, which is a continuation of application Ser. No. 07/570,380 filed Aug. 21, 1990, now abandoned.
BACKGROUND OF THE INVENTION
The present invention relates to particle screening system industrial screens and more particularly to a screen module a plurality of which are retained by a supporting structure.
Currently available screen panels are generally large, heavy and cumbersome requiring considerable time and trouble to dismantle from a supporting structure.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide an improved modular industrial screen system.
There is disclosed herein apparatus comprising:
at least one screen panel module,
a supporting structure adapted to support a plurality of said screen panel modules in side-by-side and/or end-to-end abutting relationship, the supporting structure comprising a plurality of supporting bars onto at least one of which is mounted a fall rail member, said screen panel module(s) comprising mating means adapted to engage with said rail member so as to secure said screen panel module(s) thereto.
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings, wherein:
FIG. 1 is a schematic perspective view of a screen panel and support assembly therefor;
FIG. 2 is an exploded schematic sectional end view of a central support rail and an edge of a screen panel; and
FIG. 3 is a schematic sectional end view of a support member supporting the rail of FIG. 2 and abutting edges of adjacent screen panels.
DETAILED DESCRIPTION
In the accompanying drawing, there is schematically depicted a plurality of screen panels 1 supported by support assembly 2. The support assembly 2 includes a plurality of support bars 3 which are arranged to engage at least a portion of the periphery 4 of the panels 1.
The panels may be clamped into position with respect to bars 3. The operation of the optional clamping arrangement 5 is described in the applicant's Australian Patent Application No. 27046/88. Basically, wedge means 11 drive member 10 downwardly onto support bars 3 to firmly secure screen module 1 in place.
Onto support bars 3 are mounted rail members 6 and 6′. Rail member 6 is a central rail adapted to support in side-by-side abutting relationship adjacent screen panels 1. Rail member 6′ is a side rail being essentially equivalent to one half of rail member 6.
Cut-outs 17 are provided in rail member and protuberances 20 in FIG. 2 cooperate with cut-outs 17 6 to provide means by which movement in directions B and C of panels 1 is prevented.
Rail members 6 may be fastened to support bars 3 by means of bolt 7 as shown In FIG. 3. Bolts 7 are located at various longitudinal locations along track 6.
Referring to FIG. 2, rail members 6 (and 6′) are provided with protrusions 12 being designed to mate with recesses 14 in the edge 4 of the screen panel 1. Additionally, protrusion 12 is provided with a lip 13 designed to engage with groove 15 in edge 4 of screen 1 thus providing means by which screen 1 is held firmly in place by track 6.
Further, screen members 1 being formed of plastics material may be reinforced with reinforcing bars 16 extending longitudinally and/or transversely therein.
In use, screen members 1 are Individually individually snapped onto tracks 6 and 6′ by application of a force in the direction of arrow A. As a plurality of screen members replace much larger conventional unitary screen members this process is much easier and safer than otherwise possible. Once one screen member is in place, further screen members 1 are similarly snapped into tracks 6 and 6′ to abut with the screen member previously put in place and any adjacent screen members.
It should be noted that minor changes are envisaged by the applicant. For example the specific shape of tracks 6 and the means by which the tracks 6 are anchored to support bars 3 may be altered without departing from the scope of the invention.

Claims (21)

What is claimed is:
1. A screening apparatus comprising:
a plurality of elongated support bars which are generally parallel and transversely spaced with respect to each other: ;
a plurality of elongated rail members which are mounted on said support bars and which are generally parallel and transversely spaced with respect to each other, each elongated rail member having a pair of transversely-spaced, longitudinally-extending protrusions; and
a plurality of screen panel modules mounted on said elongated rail members in side-by-side abutting relationship, each said screen panel module having side portions which extend longitudinally of an adjacent rail so as to be supported thereby, adjacent side portions of adjacent screen panel modules cooperating to secure the screen panel modules to the elongated rail members, each of said mounted screen panel modules being supported only on two sides, each side portion having (a) a longitudinally-extending recess (b) a longitudinally extending resilient skirt peripheral edge portion, and a longitudinally extending groove projecting from the recess in a direction normal to the recess,
each protrusion having a transverse cross-section complimentary to its associated recess and groove and being positioned securely therein so as to be engaged between opposing parts of its associated module with the adjacent skirt peripheral edge portions of adjacent modules abutting each other to facilitate retaining the modules in position secured to the elongated rail members,
each said elongated rail member providing means for preventing movement of said screen panel modules in a longitudinal direction with respect to the longitudinal axis of said rail elongated member.
2. The screening apparatus as claimed in claim 1 wherein the protrusion further comprises a lip over which a groove of said screen panel module us is adapted to snap fit.
3. The screening apparatus as claimed in claim 1 wherein the screen panel module and rails are formed of a resilient plastic material to facilitate resilient deformation of the modules on the rails.
4. The screening apparatus as claimed in claim 1 wherein said screen panel module is further provided with reinforcing bars extending longitudinally and/or transversely therein.
5. The screening apparatus as claimed in claim 1, wherein the elongated rail member consists of an elongated base and a pair of parallel protrusions formed integrally therewith, each protrusion comprising a lip adapted to snap fit over into one of said pair of adjacent screen panel modules.
6. The screening apparatus as claimed in claim 1, wherein the screen panel modules having formed therein a pair of longitudinal recesses each located adjacent to an opposing side of the modules and having grooves formed in said longitudinal recesses, each groove being adapted to snap-engage with a protrusion of each said elongated rail members over and by which the screen panel modules are adapted to be supported.
7. The screening apparatus of claim 1, wherein said sole means for preventing movement of said screen panel modules comprises cut-outs provided in said rail member.
8. The screening apparatus of claim 5 wherein the protrusion comprises a lip over which a groove of said screen panel module is adapted to snap fit.
9. The screening apparatus of claim 1 6wherein the screen panel modules are formed of resilient plastics material.
10. The screening apparatus of claim 9 wherein said screen panel modules are further provided with reinforcing bars extending transversely therein.
11. The screening apparatus of claim 5, wherein said means for preventing movement of said screen panel modules comprises cut-outs provided in said rail member.
12. The screening apparatus of claim 6 wherein the protrusion comprises a lip over which a groove of said screen panel module is adapted to snap fit.
13. The screening apparatus of claim 6 wherein the screen panel modules elongate rail members are formed of resilient plastics material.
14. The screening apparatus of claim 13 wherein said screen panel modules are further provided with reinforcing bars extending transversely therein.
15. The screening apparatus of claim 6, wherein said means for preventing movement of said screen panel modules comprises cut-outs provided in said rail member.
16. The screening apparatus of claim 1 wherein the recesses of each screen panel module have a minimum transverse width which is less than the maximum transverse width of the protrusions so that the protrusions snap fit within the recesses.
17. The screening apparatus of claim 5 8wherein the recesses of each screen panel module have a minimum transverse width which is less than the maximum transverse width of the protrusions so that the protrusions snap fit within the recesses.
18. The screening apparatus of claim 6 wherein the recesses of each screen panel module have a minimum transverse width which is less than the maximum transverse width of the protrusions so that the protrusions snap fit within the recesses.
19. The screening apparatus of claim 13 wherein the recesses of each screen panel module have a minimum transverse width which is less than the maximum transverse width of the protrusions so that the protrusions snap fit within the recesses.
20. The screening apparatus of claim 14 wherein the recesses of each screen panel module have a minimum transverse width which is less than the maximum transverse width of the protrusions so that the protrusions snap fit within the recesses.
21. A screen panel module mountable to a screening apparatus that is configured to receive a plurality of screen panel modules in side-by-side abutting relationship, wherein the screening apparatus has a plurality of elongated support bars which are generally parallel and transversely spaced with respect to each other, a plurality of elongated rail members which are mounted on said support bars and which are generally parallel and transversely spaced with respect to each other, each elongated rail member having a pair of transversely-spaced, longitudinally-extending protrusions, and wherein each said elongated rail member provides means for preventing movement of said screen panel module in a longitudinal direction with respect to the longitudinal axis of said rail elongated member, said screen panel module comprising:
two side portions which extend longitudinally of an adjacent rail member so as to be supported thereby such that said mounted screen panel module is supported only on two sides, wherein said side portions are configured such that adjacent side portions of adjacent screen panel modules cooperate to secure the screen panel module to the elongated rail members, and wherein each side portion comprises:
a longitudinally-extending recess;
a longitudinally extending resilient peripheral edge portion; and
a longitudinally extending groove projecting from the recess in a direction normal to the recess, wherein said recess and groove have a transverse cross-section complimentary to its associated protrusion and configured to receive said protrusion securely therein so as to mount said module with adjacent peripheral edge portions of adjacent modules abutting said module to facilitate retaining said module in position secured to the elongated rail members.
US08/775,825 1989-08-25 1996-12-31 Particle screening system Expired - Lifetime USRE38303E1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/775,825 USRE38303E1 (en) 1989-08-25 1996-12-31 Particle screening system

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AUPJ5978 1989-08-25
AUPJ597889 1989-08-25
US57038090A 1990-08-21 1990-08-21
US82124992A 1992-01-10 1992-01-10
US08/037,721 US5377846A (en) 1989-08-25 1993-03-25 Particle screening system
US08/775,825 USRE38303E1 (en) 1989-08-25 1996-12-31 Particle screening system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US08/037,721 Reissue US5377846A (en) 1989-08-25 1993-03-25 Particle screening system

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US08/037,721 Ceased US5377846A (en) 1989-08-25 1993-03-25 Particle screening system
US08/775,825 Expired - Lifetime USRE38303E1 (en) 1989-08-25 1996-12-31 Particle screening system

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Cited By (10)

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US20040074819A1 (en) * 2002-10-17 2004-04-22 Burnett George Alexander Screen assembly for a shale shaker
US20050016901A1 (en) * 2001-11-06 2005-01-27 Eeles John William Screening panel securing system
US20050040083A1 (en) * 2001-08-07 2005-02-24 Freissle Manfred Franz Axel Screening arrangement
US20050183991A1 (en) * 2002-02-11 2005-08-25 Kriel Nigel P. Screen deck
WO2006031176A1 (en) 2004-09-15 2006-03-23 Metso Minerals (Wear Protection) Ab Screen and screen element
US20080011652A1 (en) * 2006-06-21 2008-01-17 Dieter Takev Screen assembly for separating material according to particle size
US20090211965A1 (en) * 2008-02-21 2009-08-27 Weatherford/Lamb, Inc. Arrangement for splicing panels together to form a cylindrical screen
US20100101565A1 (en) * 2008-10-27 2010-04-29 Johnson Screens, Inc. Passive Solar Wire Screens for Buildings
US20110215032A1 (en) * 2010-03-03 2011-09-08 Sandvik Intellectual Property Ab Vibrating screen device having modular screening media
US9023456B2 (en) 2011-03-18 2015-05-05 Bilfinger Water Technologies, Inc. Profiled wire screen for process flow and other applications

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CA2023408C (en) * 1989-08-25 2001-03-13 Terry Askew Particle screening system
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AUPO213796A0 (en) * 1996-09-05 1996-09-26 Lettela Proprietary Limited Modular screen panel
US5811003A (en) * 1996-11-15 1998-09-22 Phoenix Energy Products, Inc. Apparatus for engaging a separator screen to a shaker device
GB9815831D0 (en) * 1998-07-22 1998-09-16 Scapa Group Plc Retention of filter elements
US20050035033A1 (en) * 1999-03-25 2005-02-17 Adams Thomas C. Methods for sealing screen assemblies on vibratory separators
US6634505B1 (en) * 1999-04-26 2003-10-21 Durex Products, Inc. Sieve bed for a sifting machine
US6267246B1 (en) * 2000-02-14 2001-07-31 Western Wire Works, Inc. Screening system for screening or diverting particulate material
US20050224398A1 (en) * 2001-10-19 2005-10-13 Largent David W Vibratory separators and sealing screens
US20050103689A1 (en) * 2001-10-19 2005-05-19 Schulte David L.Jr. Sealing screen assemblies and vibratory separators
AUPR959201A0 (en) * 2001-12-18 2002-01-24 Weatherford/Lamb Inc. Screening panel securing system
US20050067327A1 (en) * 2002-01-16 2005-03-31 Adams Thomas C. Screen assemblies for shale shakers
US7175027B2 (en) * 2002-01-23 2007-02-13 Varco I/P, Inc. Shaker screen and clamping system
GB0327582D0 (en) 2003-11-27 2003-12-31 Madison Filter 981 Ltd Filter cloth retention
US7731035B2 (en) * 2005-02-07 2010-06-08 Screenex Australia Pty Ltd Ore screening panel frame system
AU2006318056B2 (en) * 2005-11-28 2012-04-12 Multotec Manufacturing (Pty) Limited Screen panel fastener and fastening arrangement
US20070125687A1 (en) * 2005-12-01 2007-06-07 Kutryk Edward A Screen assembly for a vibratory separator
CN201172041Y (en) * 2008-01-14 2008-12-31 路德维希澳大利亚有限公司 Clamping guide-rail for sieving mechanism
US8708155B2 (en) * 2008-01-18 2014-04-29 Schenck Process Australia Pty Limited Ore screening panel frame cover
US8887922B2 (en) * 2010-04-12 2014-11-18 Norris Screen And Manufacturing, Llc Screen deck assembly
CN104837571A (en) * 2012-11-20 2015-08-12 泰加工业有限公司 Snap fit fixing system for screen panels
WO2015106305A1 (en) * 2014-01-15 2015-07-23 Schenck Process Australia Pty Ltd Ore screening panel fixing system
AU2015255301B2 (en) * 2014-11-18 2020-05-07 Lettela Pty Limited Screen panel fixing system and methods
US10064336B2 (en) * 2015-07-23 2018-09-04 Cnh Industrial America Llc Sieve arrangements for a cleaning system in an agricultural harvester
AU2016234892B2 (en) * 2015-09-28 2021-07-22 Lettela Pty Limited Screen panel locking system
CN114289307B (en) * 2021-11-08 2023-06-23 新乡市高服机械股份有限公司 Screen plate fast-assembling structure of vibrating screen

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Cited By (28)

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US20080047877A1 (en) * 2001-08-07 2008-02-28 Freissle Manfred Franz A Screening Arrangement
US8025153B2 (en) 2001-08-07 2011-09-27 Manfred Franz Axel Freissle Screening arrangement
US20050040083A1 (en) * 2001-08-07 2005-02-24 Freissle Manfred Franz Axel Screening arrangement
US7621406B2 (en) 2001-08-07 2009-11-24 Polydeck Screen Corporation Conversion kit for particulate screening system and related implementation methods
US20060180510A1 (en) * 2001-08-07 2006-08-17 Polydeck Screen Corporation Conversion kit for particulate screening system and related implementation methods
US6957741B2 (en) 2001-08-07 2005-10-25 Manfred Franz Axel Freissle Screening arrangement
US7604127B2 (en) 2001-08-07 2009-10-20 Manfred Franz Axel Freissle Screening arrangement
US20100025307A1 (en) * 2001-08-07 2010-02-04 Manfred Franz Axel Freissle Screening Arrangement
US20070284292A1 (en) * 2001-08-07 2007-12-13 Freissle Manfred Franz A Screening Arrangement
US7240801B2 (en) 2001-08-07 2007-07-10 Manfred Franz Axel Freissle Screening arrangement
US7066334B2 (en) * 2001-11-06 2006-06-27 Weatherford Austrailia Pty Ltd Screening panel securing system
US20050016901A1 (en) * 2001-11-06 2005-01-27 Eeles John William Screening panel securing system
US7413087B2 (en) * 2002-02-11 2008-08-19 Multotec Manufacturing (Pty) Limited Screen deck
US20050183991A1 (en) * 2002-02-11 2005-08-25 Kriel Nigel P. Screen deck
US6938779B2 (en) * 2002-10-17 2005-09-06 Varco I/P, Inc. Screen assembly for a shale shaker
US20040074819A1 (en) * 2002-10-17 2004-04-22 Burnett George Alexander Screen assembly for a shale shaker
US20090050539A1 (en) * 2004-09-15 2009-02-26 Metso Minerals (Wear Protection) Ab Screen and Screen Element
WO2006031176A1 (en) 2004-09-15 2006-03-23 Metso Minerals (Wear Protection) Ab Screen and screen element
US8469199B2 (en) 2004-09-15 2013-06-25 Metso Minerals (Sweden) Ab Screen and screen element
US20080011652A1 (en) * 2006-06-21 2008-01-17 Dieter Takev Screen assembly for separating material according to particle size
US7810648B2 (en) 2006-06-21 2010-10-12 Tylinter, Inc. Screen assembly for separating material according to particle size
US20090211965A1 (en) * 2008-02-21 2009-08-27 Weatherford/Lamb, Inc. Arrangement for splicing panels together to form a cylindrical screen
US20100101565A1 (en) * 2008-10-27 2010-04-29 Johnson Screens, Inc. Passive Solar Wire Screens for Buildings
US8028691B2 (en) 2008-10-27 2011-10-04 Johnson Screens, Inc. Passive solar wire screens for buildings
US8596261B2 (en) 2008-10-27 2013-12-03 Bilfinger Water Technologies, Inc. Passive solar wire screens for buildings
US20110215032A1 (en) * 2010-03-03 2011-09-08 Sandvik Intellectual Property Ab Vibrating screen device having modular screening media
US8430248B2 (en) * 2010-03-03 2013-04-30 Sandvik Intellectual Property Ab Vibrating screen device having modular screening media
US9023456B2 (en) 2011-03-18 2015-05-05 Bilfinger Water Technologies, Inc. Profiled wire screen for process flow and other applications

Also Published As

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CA2023408C (en) 2001-03-13
CA2023408A1 (en) 1991-02-26
AU6094790A (en) 1990-11-15
US5377846A (en) 1995-01-03
AU627919B2 (en) 1992-09-03

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