US3775234A - Grid structure with waved strips having apexes with enlarged sections formed therein - Google Patents

Grid structure with waved strips having apexes with enlarged sections formed therein Download PDF

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Publication number
US3775234A
US3775234A US00289333A US3775234DA US3775234A US 3775234 A US3775234 A US 3775234A US 00289333 A US00289333 A US 00289333A US 3775234D A US3775234D A US 3775234DA US 3775234 A US3775234 A US 3775234A
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United States
Prior art keywords
segments
generally
waved
strip
apexes
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Expired - Lifetime
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US00289333A
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English (en)
Inventor
J Rich
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Improved Machinery Inc
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Improved Machinery Inc
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Publication date
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Publication of US3775234A publication Critical patent/US3775234A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/102—Transverse corrugating with deformation or cutting of corrugated lamina
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24661—Forming, or cooperating to form cells
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities
    • Y10T428/24694—Parallel corrugations
    • Y10T428/24702—Parallel corrugations with locally deformed crests or intersecting series of corrugations

Definitions

  • ABSTRACT A flat or annularly configured grid structure comprising non-planar or waved strips which are formed to include generally V-shaped portions. Adjacent ones of the generally V-shaped portions have their pointed apexes on opposite sides of the central plane of the strip, and the apexes have sections substantially enlarged longitudinally of the strip for increasing the strength of the strip and facilitating connection of the strip to laterally adjacent structure, such as by weldmg.
  • the present invention relates to honeycomb or grid structures such as, by way of specific example only, the annular honeycomb drums employed by the pulp and paper making industry.
  • grid structures of this general type have been constructed from non-planar or waved strips comprising alternate, straight and generally diagonal segments cooperative to cause the strips to include portions of generally truncated triangular configuration.
  • a waved strip of this conventional construction is employed in a conventional annular grid structure, the resultant grid structure is believed to possess only relatively low stiffness when subjected to bending or tension forces acting laterally or cross-wise of the strip.
  • the waved stripscould be constructed to include portions of generally V-shaped construction.
  • the waved strips must, of course, be laterally connected at spaced locations throughout their lengths to form a grid struture; and such connections are normally being made by a welding tool or the like inserted intemaly of their composite portions.
  • a welding tool or the like inserted intemaly of their composite portions.
  • the relatively sharp or pointed apexes of entirely V-shaped portions would undesirably restrict the access of a welding tool internally of the portions, such construction would undesirably complicate the necessary connections of the waved strips.
  • buckling of the strips under compressive loads might occur when the strips were employed in grid structures including larger openings.
  • An object of the present invention is to provide a new and improved grid structure which is of substantially increased strength and stiffness and also capable of being readily and simply constructed, such as by weldmg.
  • Another object of the invention is to provide a new and improved grid structure of the type set forth which is particularly constructed and arranged to include generally V-shaped portions.
  • Another object is to provide new and improved nonplanar or waved srip means particularly constructed and arranged to, when connected into a grid structure, provide the structure with substantially increased strength and stiffness.
  • Another object is to provide new and improved nonplanar or waved strip means which, although including generally V-shaped portions, is readily and simply connectible into a grid structure, such as by welding.
  • Another object is to provide new and improved nonplanar or waved strip means particularly constructed and arranged to avoid buckling under compressive loads, even when incorporated in a grid structure having openings of large size.
  • a grid structure may comprise waved strip means including generally V-shaped portions, and the apexes of such generally V-shaped portions of the waved strip means comprising sections of greater widths than other sections thereof.
  • FIG. 1 is a partially broken-away, elevational view of an annular grid structure embodying the invention
  • FIG. 2 is an enlarged, fragmentary, perspective view illustrating the non-planar or waved strip means of the annular grid structure of FIG. 1;
  • FIG. 3 is a fragmentary elevational view showing such non-planar or waved strip means in conjunction with a conventional welding tool which is illustrated in broken lines.
  • annular cylindrical grid structure or drum designated generally as 10.
  • the principles and teachings of the invention are not limited merely to the formation of annular grid structures, but rather are also applicable to the construction of grid sructures of other desired configurations, including flat grid structures.
  • nonplanar or waved strip or strip means is illustrated and hereinafter described as connected to a planar strip means, alternatively such waved strip means could be connected to another coil of the same or a second such waved strip.
  • the illustrated grid structure 10 is closed at its opposite ends by annular, head or end closure plates 12 rigidly mounted on hubs, designated generally as 14, which support stub shafts 16 by which the grid structure 10 is supported and through which it is rotatably driven.
  • the grid structure 10 includes sheet metal, planar and waved (or non-planar) strips 18,20, respectively, which are longitudinally helically wound circumferentially of the grid structure 10 in alternate arrangement and rigidly interconnected at intervals along their lengths.
  • the grid structure 10 throughout its length includes alternate coils of the strips 18,20, later-' ally adjacent ones of which coils are rigidly interconnected at intervals; and at its ends the grid structure 10 includes coils of the waved strip 20 which are rigidly connected to the end closure plates 12.
  • the strips 18,20 are arranged with their greatest transverse or width-wise dimensions at least generally radially of the grid structure 10 and cooperate to provide the grid structure 10 with a plurality of openings 22 generally radially through the thickness of the grid structure 10.
  • the total open area of the openings 22, as will be understood, may be in the range of to percent of the .circumferential area of the grid structure 10.
  • the waved strip 20 throughout its length includes alternating diagonal or first segments 24 and connecting or second segments 26, the connecting segments 26 being integral with the diagonal segments 24 and located intermediate and interconnecting longitudinally adjacent ones of the latter.
  • the diagonal segments 24 are at least generally planar and extend across the central plane 28 of the waved strip 20 as they extend longitudinally of the latter, adjacent ones of the connecting segments 26 being on opposite sides of the central plane 28 throughout the length of the waved strip 20.
  • the connecting segments 26 are of arcuate, generally sharp or pointed configuration to include generally concave inner surfaces 30 and generally convex outer surfaces 32. Each connecting segment 26 hence cooperates with the two adjacent diagonal segments 24 (that is, the diagonal segments 24 at opposite ends thereof) to define a generally V-shaped portion of the strip 20, the connecting segment 26 bounding the at least generally pointed apex (that is, sharp or narrowly rounded apex) of such generally V-shaped portion.
  • Each of the connecting segments 26, as illustrated, has two sections 34 of its length (that is, sections of its dimension radially of the grid structure substantially laterally enlarged longitudinally of the waved strip to enable insertion of a conventional welding tool 36 internally of the apexes of the generally V- shaped portions, thereby permiting welded interconnection of the connecting segments 26 to the laterally thereadjacent coils of the planar strip 18 and the end closure plates 12.
  • the enlarged sections 34 may be formed with conical inner walls 38 and generaly flat or planar outer walls or bottoms 40 along which they are connected to the laterally thereadjacent structure.
  • the enlarged sections 34 may be formed by a conventional punch or stamping operation; and the number and location of the enlarged sections 34 on each connecting segment 26 are, of course, variable as required or desired.
  • the connecting portions 26 may each be provided with only one, or as shown a plurality, of the enlarged sections 34; however, only a minor portion of the length (that is, dimension radially of the grid structure 10) of each connecting portion 26 need be enlarged.
  • the illustrated waved strip 20 throughout its length includes generally V-shaped portions adjacent ones of which have pointed apexes on opposite sides of the central plane 28 of the waved strip 20, and such apexes, being defined by the connecting segments 26 which for minor sections 34 of their lengths are substantially laterally enlarged longitudinally of the strip 20, for minor sections of their lengths are substantially laterally enlarged longitudinally of the strip 20.
  • this beforedescribed construction due to the provision of the enlarged sec tions 34, provides a non-planar or waved strip 20 of substantially increased buckling strength; and furthermore that a grid structure 10 including such a nonplanar or waved strip 20 possesses significant stiffness and strength while being capable of construction by conventional welding processes. It is believed to be apparent that an annular grid structure 10 employing such a strip 20 may be, as desired or required, used in many applications such as, by way of example, a dryer drum, a filtering drum and/or a supporting drum for use during the manufacture of pulp and paper.
  • the described grid structure 10 includes a planar strip 18 interconnected with the wave strip 20, it will be seen that such planar strip 18 could be eliminated, in which event adjacent coils of the waved strip 20 could be directly interconnected or, alternatively, connected to laterally adjacent coils of another similar waved strip.
  • a drum including end portions of this latter construction is, for example, described in United States Patent application Ser. No. 289,663 entitled DRUM INCLUDING ANNULAR GRID STRUCTURE filed by Oscar Luthi on same date is believed to be clearly apparent from the beforegoing description.
  • a grid structure comprising waved strip means including generally V-shaped portion, the substantially pointed apexes of said generally V-shaped portions of said waved strip means comprising sections of greater widths than other sections thereof, and said greater width sections having generally planar bottoms for connection to laterally adjacent structure and being adapted to internally receive a tool for making such connections.
  • said waved strip means includes first segments and second segements intermediate and interconnecting said first segements, said second segments cooperating with adjacent ones of said first segments to define said generally V-shaped portions, said second segments bounding the generally pointed apexes of said generally V-shaped portions and said second segments having sections laterally enlarged longitudinally of said waved strip means defining said greater width sections of said apexes.
  • a waved strip for use in forming a grid structure including generally V-shaped portions, the substantially pointed apexes of said generally V-shaped portions comprising sections of greater widths than other sections thereof, and said greater width sections having generally planar bottoms for connection to laterally adjacent structure and being adapted to internally receive a tool for making such connections.
  • a waved strip according to claim 10 wherein adjacent ones of said apexes of said generally V-shaped portions are on opposite sides of the central plane of said waved strip.
  • a waved strip according to claim 10 wherein said apexes of said generally V-shaped portions extend transversely of said waved strip.
  • a waved strip according to claim 10 wherein adjacent ones of said apexes of said generally V-shaped portions are on opposite sides of the central plane of said waved strip, and said apexes extend transversely of said waved strip.
  • a waved strip according to claim 10 comprising first segments and second segments intermediate and interconnecting said first segments, said second segments cooperating with adjacent ones of said first segments to define said generally V-shaped portions of said waved strip, said second segments bounding the generally pointed apexes of said generally V-shaped portions, and said second segments including sections enlarged longitudinally of said waved strip defining said greater width sections of the waved strip.
  • a waved strip according to claim 14 wherein said first segments extend generally diagonally across the central plane of said waved strip and adjacent ones of said second segments are on opposite sides of said central plane.
  • An annular grid structure comprising circumferentally extending strip means laterally adjacent coils of which are interconnected, said strip means-including a waved strip having alternate generally diagonal segments and therebetween connecting segments interconnecting such said diagonal segments, said connecting segments being alternately on opposite sides of the central plane of said wave strip and said diagonal segments crossing such central plane, said connecting segments cooperating with thereadjacent ones of said diagonal segments to define generally V-shaped portions of said waved strip, said connecting segments bounding the at least generally pointed apexes of said generally V-shaped portions, said connecting segments having sections substantially enlarged longitudinally of the waved strip to cause said apexes of said generally V- shaped portions to include connecting sections substantially enlarged longitudinally of said waved strip, and said enlarged longitudinal sections having generally planar bottoms for connection to laterally adjacent structure and being adapted to internally receive a tool for making such connections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Drying Of Solid Materials (AREA)
  • Making Paper Articles (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
US00289333A 1972-09-15 1972-09-15 Grid structure with waved strips having apexes with enlarged sections formed therein Expired - Lifetime US3775234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28933372A 1972-09-15 1972-09-15

Publications (1)

Publication Number Publication Date
US3775234A true US3775234A (en) 1973-11-27

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US00289333A Expired - Lifetime US3775234A (en) 1972-09-15 1972-09-15 Grid structure with waved strips having apexes with enlarged sections formed therein

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US (1) US3775234A (fi)
JP (1) JPS5824559B2 (fi)
BR (1) BR7306444D0 (fi)
CA (1) CA1022082A (fi)
DE (1) DE2342422C3 (fi)
FI (1) FI62153C (fi)
GB (1) GB1426345A (fi)
SE (1) SE404212B (fi)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276169A (en) * 1980-04-10 1981-06-30 Dorr-Oliver Incorporated Drainage deck assembly for rotary vacuum drum filter
US4657711A (en) * 1983-10-15 1987-04-14 Wigley Albert F Gas/liquid contact device
US4905313A (en) * 1989-03-17 1990-02-27 Custodis-Ecodyne Gas/liquid contact apparatus
US4906508A (en) * 1988-09-28 1990-03-06 Karl Blankenburg Molded structural module and process for making the same
US4981621A (en) * 1985-01-30 1991-01-01 Sulzer Brother Limited Regular packing element of thin foil-like material for mass transfer and heat exchange columns
US5063000A (en) * 1989-05-03 1991-11-05 Mix Thomas W Packing elements
US5242735A (en) * 1991-10-17 1993-09-07 Karl Blankenburg Structural module
US5283099A (en) * 1991-09-24 1994-02-01 Dynamic Technologies, Inc. Enhanced structural core material
US5407607A (en) * 1993-11-09 1995-04-18 Mix; Thomas W. Structured packing elements
US5413872A (en) * 1991-08-23 1995-05-09 Heinz Faigle Kg Filling member
US5766774A (en) * 1994-06-20 1998-06-16 Masonite Corporation Molded core component
US6032890A (en) * 1996-09-23 2000-03-07 Sonoco Development, Inc. Stacking stable yarn carrier for package dyeing
US20080277009A1 (en) * 2007-05-10 2008-11-13 Fluid-Quip, Inc. Multiple helical vortex baffle
US20100237519A1 (en) * 2009-03-18 2010-09-23 Ilja Ausner Packing layer for a structured packing
CN102553329A (zh) * 2012-01-22 2012-07-11 江苏一环集团有限公司 水处理用回转细格栅及在水处理中的应用
US20130153184A1 (en) * 2011-12-19 2013-06-20 Rolls-Royce Plc Heat exchanger
US20150034277A1 (en) * 2013-07-31 2015-02-05 Baltimore Aircoil Company, Inc. Cooling tower fill
US20150336080A1 (en) * 2014-05-21 2015-11-26 Brentwood Industries, Inc. Snap-lock packing element and assembly thereof for a contact assembly
US20170067695A1 (en) * 2014-03-07 2017-03-09 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchange plate used for plate-type heat exchanger and plate-type heat exchanger provided with the heat exchange plate
US10323883B2 (en) 2014-03-07 2019-06-18 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchange plate for plate-type heat exchanger and plate-type heat exchanger provided with said heat exchange plate
USD854132S1 (en) 2016-11-23 2019-07-16 Koch-Glitsch, Lp Corrugated steel structure
US10386135B2 (en) 2014-10-31 2019-08-20 Baltimore Aircoil Company, Inc. Cooling tower integrated inlet louver fill
US10953382B2 (en) * 2017-06-09 2021-03-23 Koch-Glitsch, Lp Structured packing module for mass transfer columns
US20230105162A1 (en) * 2021-10-01 2023-04-06 Evapco, Inc. Direct heat exchange fill
RU218915U1 (ru) * 2023-04-29 2023-06-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный лесотехнический университет имени Г.Ф. Морозова" Двухсторонняя облегченная широкополосная звукоизолирующая панель

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173771A (en) * 1974-12-24 1976-06-25 Tokico Ltd Atsushukusochini okeru atsushukuzumitaino jidohaishutsusochi
JPS61211574A (ja) * 1985-03-15 1986-09-19 Nippon Mektron Ltd ピストン用パツキン
DE3607699A1 (de) * 1986-03-08 1987-09-10 Messerschmitt Boelkow Blohm Verfahren zum diffusionsschweissen mit isostatischem druck
JPS6331415U (fi) * 1986-08-12 1988-03-01
JPS63255713A (ja) * 1987-04-13 1988-10-24 Tlv Co Ltd 減圧弁のピストン構造
JPS63196804U (fi) * 1988-06-06 1988-12-19
JPH0535215Y2 (fi) * 1988-10-19 1993-09-07
CA2059342C (en) * 1991-03-11 1997-05-27 Yigal Peleg Microwave reconstitution of frozen pizza
ITRM20070644A1 (it) 2007-12-14 2009-06-15 Pasquale Impero Pannello metallico a struttura cellulare, relativo procedimento di produzione, e suo utilizzo in un assorbitore d'urto.
ITRM20090075A1 (it) * 2009-02-19 2010-08-20 Pasquale Impero Armatura a celle esagonali per cemento armato.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597801A (en) * 1945-08-27 1948-02-03 Ardor Insulation Company Ltd Improvements in composite metal sheeting and the manufacture thereof
US3105043A (en) * 1960-05-26 1963-09-24 Improved Machinery Inc Filter
US3158527A (en) * 1960-06-10 1964-11-24 Crown Zellerbach Corp Plaited structure and method of forming same
US3281307A (en) * 1962-11-05 1966-10-25 Dow Chemical Co Packing
US3590453A (en) * 1968-06-19 1971-07-06 Metal Tech Inc Honeycomb roll

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1561666B1 (de) * 1967-02-16 1971-05-27 Kufferath Andreas Fa Saugwalze und Verfahren zu ihrer Herstellung
FR1559411A (fi) * 1968-03-26 1969-03-07

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597801A (en) * 1945-08-27 1948-02-03 Ardor Insulation Company Ltd Improvements in composite metal sheeting and the manufacture thereof
US3105043A (en) * 1960-05-26 1963-09-24 Improved Machinery Inc Filter
US3158527A (en) * 1960-06-10 1964-11-24 Crown Zellerbach Corp Plaited structure and method of forming same
US3281307A (en) * 1962-11-05 1966-10-25 Dow Chemical Co Packing
US3590453A (en) * 1968-06-19 1971-07-06 Metal Tech Inc Honeycomb roll

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276169A (en) * 1980-04-10 1981-06-30 Dorr-Oliver Incorporated Drainage deck assembly for rotary vacuum drum filter
US4657711A (en) * 1983-10-15 1987-04-14 Wigley Albert F Gas/liquid contact device
US4981621A (en) * 1985-01-30 1991-01-01 Sulzer Brother Limited Regular packing element of thin foil-like material for mass transfer and heat exchange columns
US4906508A (en) * 1988-09-28 1990-03-06 Karl Blankenburg Molded structural module and process for making the same
US4905313A (en) * 1989-03-17 1990-02-27 Custodis-Ecodyne Gas/liquid contact apparatus
US5063000A (en) * 1989-05-03 1991-11-05 Mix Thomas W Packing elements
US5413872A (en) * 1991-08-23 1995-05-09 Heinz Faigle Kg Filling member
US5283099A (en) * 1991-09-24 1994-02-01 Dynamic Technologies, Inc. Enhanced structural core material
US5242735A (en) * 1991-10-17 1993-09-07 Karl Blankenburg Structural module
US5407607A (en) * 1993-11-09 1995-04-18 Mix; Thomas W. Structured packing elements
US5578254A (en) * 1993-11-09 1996-11-26 Mix; Thomas W. Structured packing elements
US5766774A (en) * 1994-06-20 1998-06-16 Masonite Corporation Molded core component
US6032890A (en) * 1996-09-23 2000-03-07 Sonoco Development, Inc. Stacking stable yarn carrier for package dyeing
US20130032321A1 (en) * 2007-05-10 2013-02-07 Fluid-Quip, Inc. Multiple helical vortex baffle
US20080277009A1 (en) * 2007-05-10 2008-11-13 Fluid-Quip, Inc. Multiple helical vortex baffle
US8696192B2 (en) * 2007-05-10 2014-04-15 Fluid-Quip, Inc. Multiple helical vortex baffle
US8714811B2 (en) * 2007-05-10 2014-05-06 Fluid-Quip, Inc. Multiple helical vortex baffle
US20100237519A1 (en) * 2009-03-18 2010-09-23 Ilja Ausner Packing layer for a structured packing
US8944417B2 (en) * 2009-03-18 2015-02-03 Sulzer Chemtech Ag Packing layer for a structured packing
US20130153184A1 (en) * 2011-12-19 2013-06-20 Rolls-Royce Plc Heat exchanger
CN102553329A (zh) * 2012-01-22 2012-07-11 江苏一环集团有限公司 水处理用回转细格栅及在水处理中的应用
CN102553329B (zh) * 2012-01-22 2014-07-09 江苏一环集团有限公司 水处理用回转细格栅及在水处理中的应用
US20150034277A1 (en) * 2013-07-31 2015-02-05 Baltimore Aircoil Company, Inc. Cooling tower fill
US9170054B2 (en) * 2013-07-31 2015-10-27 Baltimore Aircoil Company, Inc. Cooling tower fill
US20170067695A1 (en) * 2014-03-07 2017-03-09 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchange plate used for plate-type heat exchanger and plate-type heat exchanger provided with the heat exchange plate
US10323883B2 (en) 2014-03-07 2019-06-18 Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. Heat exchange plate for plate-type heat exchanger and plate-type heat exchanger provided with said heat exchange plate
US20150336080A1 (en) * 2014-05-21 2015-11-26 Brentwood Industries, Inc. Snap-lock packing element and assembly thereof for a contact assembly
US9555390B2 (en) * 2014-05-21 2017-01-31 Brentwood Industries, Inc. Snap-lock packing element and assembly thereof for a contact assembly
US10386135B2 (en) 2014-10-31 2019-08-20 Baltimore Aircoil Company, Inc. Cooling tower integrated inlet louver fill
USD854132S1 (en) 2016-11-23 2019-07-16 Koch-Glitsch, Lp Corrugated steel structure
US10953382B2 (en) * 2017-06-09 2021-03-23 Koch-Glitsch, Lp Structured packing module for mass transfer columns
US20230105162A1 (en) * 2021-10-01 2023-04-06 Evapco, Inc. Direct heat exchange fill
RU218915U1 (ru) * 2023-04-29 2023-06-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный лесотехнический университет имени Г.Ф. Морозова" Двухсторонняя облегченная широкополосная звукоизолирующая панель

Also Published As

Publication number Publication date
SE404212B (sv) 1978-09-25
DE2342422B2 (de) 1981-04-16
JPS5824559B2 (ja) 1983-05-21
CA1022082A (en) 1977-12-06
BR7306444D0 (pt) 1974-07-18
FI62153C (fi) 1982-11-10
FI62153B (fi) 1982-07-30
DE2342422C3 (de) 1981-12-17
JPS4962707A (fi) 1974-06-18
DE2342422A1 (de) 1974-03-21
GB1426345A (en) 1976-02-25

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