US3661354A - Reinforced concrete wall form panel - Google Patents

Reinforced concrete wall form panel Download PDF

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Publication number
US3661354A
US3661354A US54501A US3661354DA US3661354A US 3661354 A US3661354 A US 3661354A US 54501 A US54501 A US 54501A US 3661354D A US3661354D A US 3661354DA US 3661354 A US3661354 A US 3661354A
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United States
Prior art keywords
concrete wall
crossbars
wall form
panel
openings
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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
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US54501A
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English (en)
Inventor
Richart T Dagiel
David L Cody
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General Electric Co
Original Assignee
Symons Corp
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Publication date
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Publication of US3661354A publication Critical patent/US3661354A/en
Assigned to GENERAL ELECTRIC CREDIT CORPORATION reassignment GENERAL ELECTRIC CREDIT CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SYMONS CORPORATION
Anticipated expiration legal-status Critical
Assigned to BANKERS TRUST COMPANY reassignment BANKERS TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SYMONS CORPORATION
Expired - Lifetime legal-status Critical Current

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    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/047—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements simultaneously tying two facing forms
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/10—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements without beams which are mounted during erection of the shuttering to brace or couple the elements
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/12—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements and beams which are mounted during erection of the shuttering to brace or couple the elements
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • the present invention relates to a novel panel for use with similar panels in connection with the erection of a concrete wall form, the panel being of the Steel-Ply" type and having novel reinforcing means for the plywood facing thereof, such means affording a more effective bracing of the plywood facing against outward bulging than has heretofore been possible while, at the same time, prescribed weight limitations are not exceeded.
  • the invention is specifically concerned and also designed for use primarily with prefabricated Steel-Ply" panels of the type which is manufactured and sold by Symons Corporation of Des Plaines, lllinois.
  • a concrete wall form panel is shown and described in U.S. Pat. No. 2,997,769, granted on Aug. 29, 1961 and entitled TIE ROD ASSEMBLY FOR CONCRETE WALL FORM PANELS.
  • such a panel consists essentially of a shallow tray-like structure in the form of a flat rectangular plywood facing, the margins or edges of which are completely encased in a rectangular steel reinforcing frame including vertical and horizontal frame members, as well as vertically spaced, horizontally extending crossbars between the vertical frame members.
  • Such a panel when used in a concrete wall form installation, is adapted to be arranged in edge-to-edge relationship with similar panels and in such a manner that all of the plywood facings lie in a common horizontal plane in order that wet concrete may be poured against the continuous unbroken wall-supporting surface that is offered by the plywood facings of the panels, it being understood that the series of panels will form one side of the concrete wall form as a whole and that the form will have another similar upstanding side which is positioned in spaced apart relation with the first side, the two sides of the form being maintained in their spaced apart relationship by way of horizontal tie rods which extend transversely across the space between the sides and are connected to such sides by way of T-bolt and wedge assemblies at their ends.
  • the vertical and horizontal members of the reinforcing frames have formed therein transverse slots, such slots being set at approximately l-foot centers.
  • Most of the hardware that is employed is designed to cooperate with these slots and included in such hardware are the aforementioned T-bolt and wedge assemblies which are employed for the purpose of drawing the adjacent side edges of the panels together and attaching the panels to the ends of the tie rods.
  • the medial regions of the plywood facings be reinforced against outward bulging under the tremendous outward thrust of the poured wet concrete and, accordingly, the aforementioned crossbars are provided and they divide the rectangular reinforcing frames into a number of included frame openings which are rectangular and have their long dimension extending transversely or crosswise of the panels.
  • the crossbars of each concrete wall form panel are caused to traverse the reinforcing frame slightly above or slightly below the level of the slots in the vertical frame members.
  • all of the crossbars on one side of a medial horizontal plane are positioned just above the level of the adjacent slots in the vertical frame members, while the crossbars on the other side of such plane are positioned just below the level of the adjacent slots in said vertical frame members.
  • the crossbars of a Steel-Ply concrete wall form panel are ordinarily in the form of angle pieces which are of L- shaped cross section and, when installed, one flange of each crossbar extends vertically and lies flatlyagainst the outer surface of the plywood facing.
  • This direction of extent of the various vertically disposed crossbar flanges still further modifies the height of the included openings between the various crossbars of the rectangular reinforcing frame of the panel.
  • the vertically disposed flanges of the crossbars extend in the same direction, the height of the included opening between adjacent crossbars is reduced.
  • the height of the included opening is increased.
  • the crossbars of the reinforcing frame of the concrete wall form panel are formed of a balanced Z-shaped steel stock instead of L-shaped orangle piece steel stock, the Z-shaped stock being more efiicient structurally. All of the crossbars are similarly oriented with the flanges which lie against the outer surface of the plywood facing projecting upwardly from the medial webs of the crossbars.
  • the plywood facing which is employed is invariably in the form of a laminated structure of the five-ply variety with the thickness of the laminations being equal and with the overall thickness of the facing being-one-half inch so that the individual plies are each one-tenth of an inch thick.
  • the grain structures of the various plies of the facing run at right angles alternately in different directions so that the outside or surface plies as well as the center ply, have their grain running in the same direction.
  • the maximum deflection of a beam under load across a given span may be represented by the equation A K WLIEI
  • A represents maximum deflection
  • K is a constant that varies with the type of span
  • W is the weight per unit of length
  • L is the length of the span
  • E is the modulus of elasticity of the beam
  • I is the moment of inertia. From I this equation, it will be seen that maximum deflection varies as a function of the fourth power of the length of the span and, consequently, any reduction in the length of the span, however small, will effect a material reduction in the amount of beam deflection.
  • the various included openings between adjacent crossbars are, according to the present invention, equalized in size so as to eliminate the large central included opening where plywood bulging is at a maximum.
  • the present invention contemplates the provision of a series of vertically extending, equidistantly spaced backbone members which span the panel completely from the lower horizontal frame member to the upper horizontal frame member, intersect the various crossbars and bear against the outer surface of the plywood facing, thereby dividing each included opening between adjacent crossbars into smaller included openings of relatively equal size.
  • a further advantage of the invention resides in the fact that the general operating characteristics of a conventional Steel- Ply panel are, in their entirely preserved and a concrete wall form panel embodying the principles of the present invention does not differ appreciably from a standard Steel-Ply" panel insofar as erection accommodations are concerned, such as the use of conventional flat slotted tie rods, T-bolt and wedge fastening devices and the like, or the use of conventional concrete wall form hardware such as waler clamping brackets, form braces and other panel adjuncts.
  • a Steel-Ply" panel embodying the present invention may be used interchangeably with a conventional Steel-Ply panel in any given installation.
  • FIG. 1 is a fragmentary perspective view of a concrete wall form utilizing panels embodying the present invention
  • FIG. 2 is an enlarged fragmentary perspective view of the juncture region between a crossbar and backbone angle piece employed in connection with the invention
  • FIG. 3 is an enlarged fragmentary perspective view of one side of an assembled concrete wall form embodying three of the panels, the latter being shown operatively connected together in edge-to-edge relationship;
  • FIG. 4 is a vertical sectional view taken on the line 44 of FIG. 3;
  • FIG. 5 is a vertical sectional view taken on the line 5-5 of FIG. 4;
  • FIG. 6 is a horizontal sectional view taken on the line 6-6 of FIG. 1.
  • FIG. 1 wherein an erected concrete wall form employing the improved panels is fragmentarily shown, the front and rear sides of the form are designated by the reference numerals 10 and 12, respectively, and each side is comprised of a number of panels 14 embodying the principles of the present invention and arranged in edge-to-edge relationship.
  • the two form sides 10 and 12 are maintained in their upstanding and spaced apart relationship by means of conventional horizontally and transversely extending tie rods 16 which are fastened or connected to the panels 14 by T-bolt and wedge assemblies 18 in a manner that will be described presently.
  • Each panel 14 is of the prefabricated Steel-Ply" type, which is to say that it is of open shallow tray-like design and consists of a rectangular plywood facing 20 and a marginal rectangular steel reinforcing frame, such frame comprising longitudinal frame members 22 and transverse frame members 23.
  • the panels 14 are shown in FIG. 1 as being positioned with their longitudinal frame members 22 extending vertically and with their transverse frame members 23 extending horizontally and thus further reference to these panels will be made on the basis of their position in the wall form.
  • intermediate horizontal steel crossbars 24 in the fonn of structural steel bars of Z-shape cross section extend between and are welded to the opposed vertical frame members 22.
  • the plywood facing 20 consists of five face-to-face bonded-together plies. For the purpose of obtaining maximum strength, the central and the two outside plies have the grain extending lengthwise while the two plies between the central and outside plies have the grain extending transversely.
  • the vertical and horizontal frame members 22 and 23 are in the form of structural steel bars which are shallow channelshaped in cross section and each bar consists of inside and outside outwardly extending marginal ribs 26 and 28 and a connecting base or web portion 30.
  • On the side of each web portion opposite to the ribs 26 and 28 is a lateral inwardly extending flange 32 (see FIG. 3) on which the adjacent marginal portion of the plywood facing 20 seats with its inside face flush with the inside edge portions of the frame members 22 and 23.
  • pairs of transversely registering notches 34 are formed and these notches, when the vertical frame members 22 are in contiguity, define therebetween horizontal channel voids 35 which are adapted to receive therethrough the slotted ends of the tie rods 18.
  • a rectangular slot 36 is formed in the web portion 30 of each frame member at the level of each pair of notches 34 and such slot is adapted to receive therethrough the shank portion of the T-bolt of one of the assemblies 18 whereby the contiguous or abutting frame members of adjoining panels are drawn tightly together.
  • the various groups of notches 34 and slots 36 are formed on 12-inch centers and in such a manner as to insure that when end-over-end reversibility of any panel is resorted to, notch alignment between contiguous frame members will be preserved.
  • the aforementioned tie rods extend through the aforementioned channel voids 35 and the slotted ends thereof register with the adjacent slots 36 so that the shank portions of the T-bolts of the T-bolt and wedge assemblies 18 pass through such slotted ends and thus capture the tie rods in a manner well known in the art.
  • short diagonal strut pieces 38 extend across the four corners of each panel 14 on the outer side thereof, are welded at their ends to the vertical and horizontal frame members 22 and 23, and are riveted to the plywood facing 20.
  • the crossbars 24 instead of being of L-shape construction as heretofore manufactured, are of Z- shape in design and each crossbar includes medial web 40, an inside upwardly projecting inside flange 42 which lies flush against the plywood facing 20, and a downturned outside flange 44.
  • the ends of the web portions 40 of the crossbars 24 are slotted as indicated at 46 to afford a clearance for the wedges of the T-bolt and wedge assemblies 18 when the wedges are driven downwardly through the slotted distal ends of the T-bolts as is customary in connection with conventional Steel-Plypanels.
  • the principal modification of a standard Steel-Ply panel resides in the provision of a pair of vertically extending backbone members 50 which are in the form of L-shaped angle pieces.
  • Each backbone member embodies an inside flange 52 which fits flatly against the outer surface of the plywood facing 20, and an outwardly directed flange 54 which extends at right angles to the plywood facing.
  • the inside flanges 52 of the two backbone members 50 extend in opposite directions, i.e., away from one another.
  • the backbone members 50 extend continuously between the top and bottom horizontal frame members 23 of the reinforcing frame and are welded to the latter at their ends.
  • the lateral disposition of the spaced apart backbone members 50 is such that they, in combination with the various crossbars 24 which they intersect, establish a lattice-like framework having (in the illustrated large size Steel- Ply panels) 18 included nearly square openings of substantially equal size. It will be understood, of course, that where smaller size Steel-Ply" panels oflesser height are concerned, and having a lesser number of crossbars, the number of included openings will be correspondingly less, there being three less openings for each crossbar which is eliminated or omitted.
  • FIG. 2 The manner in which the backbone members 50 intersect the crossbars 24 is clearly shown in FIG. 2 wherein it will be observed that, at each intersection, the web portion 40 of the crossbar is formed with a narrow notch 56 (see FIG. 2) that receives the outwardly directed flange 54 of the backbone member 50, while the flange portion 42 of the crossbar is formed with a wide notch 58 that receives the inside flange 52 of the backbone member.
  • the flange 42 of the crossbar 24 and the flange 52 of the backbone member 50 are coplanar and both bear flatly against the outer surface of the plywood panel 20.
  • the juncture regions of the two parts or members are welded together as indicated at 60.
  • the entire plywood panel-reinforcing structure which lies within the confines of the rectangular reinforcing frame embodying the members 22 and 23 may be assembled as a unitary lattice unit and then inserted into the frame and welded in position therein with the various welds being made at the regions where the extreme ends of the crossbars 24 and the backbone members 50 abut against the vertical frame members 22 and the horizontal frame members respectively.
  • the backbone members 50 may be installed in the reinforcing frame at the proper locations and, thereafter, the crossbars 24 may be interlocked with the backbone members 50 as previously described in connection with FIG. 2, and then welded in position. Irrespective, however, of the particular method of assembling the panels 10, the essential features of the invention remain the same.
  • each panel 14 is shown and described herein as being provided with two spaced apart vertical backbone members 50. a greater or lesser number of such members may be employed if desired, the only consideration being the maintenance of the overall panel within acceptable weight limitations. Therefore, only in sofar as the invention is particularly pointed out in the accompanying claims is the same to be limited.
  • a concrete wall form panel adapted to be positioned vertically in edge-to-edge relation with like panels in order to form a part of a concrete wall form, said panel comprising a rectangular plywood facing and a rectangular marginal reinforcing frame including verticalframe members and top and bottom horizontal frame members, saidvertical frame members being provided with vertically spaced pairs of opposed bolt-receiving openings at equally spaced levels, a series of transversely extending horizontal plywood-reinforcing crossbars having their ends secured to the vertical frame members, there being one crossbar for each pair of opposed openings, each crossbar being Z-shape in transverse cross section and having a horizontal shelf-like web which is vertically displaced from the horizontal plane of the associated pair of openings a slight distance, a first flat vertical inside flange which bears coextensively against the plywood facing, and a second flat vertical outside flange which projects in a direction opposite to the direction of projection of the first inside flange of the crossbar, all of said crossbars extending in parallelism and

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
US54501A 1970-07-13 1970-07-13 Reinforced concrete wall form panel Expired - Lifetime US3661354A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862737A (en) * 1973-10-01 1975-01-28 Hoover Ball & Bearing Co Concrete form panels and locking means therefor
US4210306A (en) * 1978-05-18 1980-07-01 Symons Corporation Safety key and locking means therefor for use with concrete wall form panels
US4228986A (en) * 1979-03-12 1980-10-21 Symons Corporation Attachment for anchoring a safety belt
US4356993A (en) * 1981-01-15 1982-11-02 Harsco Corporation Corner forming apparatus for a concrete wall form
US4401291A (en) * 1981-02-04 1983-08-30 Harsco Corporation Concrete wall form with safety attachment
US5651910A (en) * 1995-11-02 1997-07-29 Dallas E. Myers Concrete wall form and tie system
US6283439B1 (en) 1998-01-16 2001-09-04 Feather Lite Innovations, Inc. Wall form panel and method of making the same
US20040172891A1 (en) * 2003-03-04 2004-09-09 Nick Di Lorenzo Stud for concrete forms and forms using such studs
US20040217254A1 (en) * 2003-02-03 2004-11-04 Feather Lite Innovations, Inc. Textured brick wall form panel
US20060025329A1 (en) * 1997-02-06 2006-02-02 Todd Hembrough Compositions and methods for inhibiting cellular proliferation comprising TFPI fragments
US20080202064A1 (en) * 2004-07-16 2008-08-28 Jerry Lee Keith Bracket and method for supoprting a platform from concrete form tabs
US20080307736A1 (en) * 2007-06-15 2008-12-18 Trimmer Douglas E Concrete form system for low-clearance applications
US9279260B2 (en) 2012-10-12 2016-03-08 Norton Baum Modular panel concrete form for self-lifting concrete form system
US9333672B1 (en) * 2015-04-09 2016-05-10 S.G.L. Gavish Yizum U'vnia, Ltd. Hardenable material structure construction apparatus and method
US20160362867A1 (en) * 2009-07-15 2016-12-15 Megamold Infrastructure Systems LLC Modular construction mold apparatus and method for constructing concrete buildings and structures
US9861190B2 (en) * 2015-04-30 2018-01-09 Seobo Industrial Co., Ltd. Wood gang form and method for constructing concrete building using same
US20190323246A1 (en) * 2018-03-06 2019-10-24 Peri Gmbh Formwork apparatus and method for producing vertical wall sections that include connection reinforcement elements for a floor
US20230340793A1 (en) * 2016-12-26 2023-10-26 Domingo De Guzman Claro Carrascal Formwork mechanism for casting and moulding concrete, comprising a coffer with a sheet and four plates arranged around the sheet's perimeter
CN117090324A (zh) * 2023-09-14 2023-11-21 中建三局总承包建设有限公司 一种装配式墙板凹凸错缝式竖向接长施工结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432593A1 (fr) * 1978-05-19 1980-02-29 Toulouze Andre Amelioration des banches metalliques
CA1159274A (en) * 1981-03-27 1983-12-27 Ronald J. Johnston Concrete forming structures
CA1283557C (en) * 1986-01-31 1991-04-30 Leonid Slonimsky Panel for concrete formwork and panel connector
BR102017004456B1 (pt) * 2017-03-06 2023-10-03 Rodrigo Castro Alves Cury Suporte para posicionamento, alinhamento e transporte de formas metálicas em grupo

Citations (11)

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Publication number Priority date Publication date Assignee Title
US1694292A (en) * 1928-02-10 1928-12-04 Fred A Tracey Method of constructing and supporting forms for concrete work
US2017553A (en) * 1931-11-09 1935-10-15 Arthur E Troiel Form for plastic structural work
US2336253A (en) * 1942-05-18 1943-12-07 Jennings William Allen Concrete form panel
US2451951A (en) * 1946-06-06 1948-10-19 Philip Y K Howat Apparatus for molding concrete walls
US2511584A (en) * 1947-05-12 1950-06-13 Hayden C Hill Wall form construction
US2595286A (en) * 1948-11-30 1952-05-06 Lowell M Otte Sectional metal concrete column form
US2616148A (en) * 1949-01-11 1952-11-04 Kwikform Ltd Shuttering for use in molding arched concrete roof structures
US2801454A (en) * 1951-05-21 1957-08-06 Troiel Companies Inc Form wall panel
US3007221A (en) * 1958-10-06 1961-11-07 William H Kenney Nail free wall form assembly device
US3211413A (en) * 1962-12-26 1965-10-12 Iii John L Low Concrete forms and components thereof
US3362674A (en) * 1965-04-14 1968-01-09 Symons Mfg Co Adjustable concrete column form and panel therefor

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694292A (en) * 1928-02-10 1928-12-04 Fred A Tracey Method of constructing and supporting forms for concrete work
US2017553A (en) * 1931-11-09 1935-10-15 Arthur E Troiel Form for plastic structural work
US2336253A (en) * 1942-05-18 1943-12-07 Jennings William Allen Concrete form panel
US2451951A (en) * 1946-06-06 1948-10-19 Philip Y K Howat Apparatus for molding concrete walls
US2511584A (en) * 1947-05-12 1950-06-13 Hayden C Hill Wall form construction
US2595286A (en) * 1948-11-30 1952-05-06 Lowell M Otte Sectional metal concrete column form
US2616148A (en) * 1949-01-11 1952-11-04 Kwikform Ltd Shuttering for use in molding arched concrete roof structures
US2801454A (en) * 1951-05-21 1957-08-06 Troiel Companies Inc Form wall panel
US3007221A (en) * 1958-10-06 1961-11-07 William H Kenney Nail free wall form assembly device
US3211413A (en) * 1962-12-26 1965-10-12 Iii John L Low Concrete forms and components thereof
US3362674A (en) * 1965-04-14 1968-01-09 Symons Mfg Co Adjustable concrete column form and panel therefor

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862737A (en) * 1973-10-01 1975-01-28 Hoover Ball & Bearing Co Concrete form panels and locking means therefor
US4210306A (en) * 1978-05-18 1980-07-01 Symons Corporation Safety key and locking means therefor for use with concrete wall form panels
US4228986A (en) * 1979-03-12 1980-10-21 Symons Corporation Attachment for anchoring a safety belt
US4356993A (en) * 1981-01-15 1982-11-02 Harsco Corporation Corner forming apparatus for a concrete wall form
US4401291A (en) * 1981-02-04 1983-08-30 Harsco Corporation Concrete wall form with safety attachment
US5651910A (en) * 1995-11-02 1997-07-29 Dallas E. Myers Concrete wall form and tie system
US20060025329A1 (en) * 1997-02-06 2006-02-02 Todd Hembrough Compositions and methods for inhibiting cellular proliferation comprising TFPI fragments
US6283439B1 (en) 1998-01-16 2001-09-04 Feather Lite Innovations, Inc. Wall form panel and method of making the same
US20040217254A1 (en) * 2003-02-03 2004-11-04 Feather Lite Innovations, Inc. Textured brick wall form panel
US6991205B2 (en) * 2003-02-03 2006-01-31 Feather Lite Innovations, Inc. Textured brick wall form panel
US20040172891A1 (en) * 2003-03-04 2004-09-09 Nick Di Lorenzo Stud for concrete forms and forms using such studs
US7331148B2 (en) * 2003-03-04 2008-02-19 Brentmuir Developments (1993) Ltd. Stud for concrete forms and forms using such studs
US20080202064A1 (en) * 2004-07-16 2008-08-28 Jerry Lee Keith Bracket and method for supoprting a platform from concrete form tabs
US7748195B2 (en) * 2004-07-16 2010-07-06 Jerry Lee Keith Bracket and method for supporting a platform from concrete form tabs
US20080307736A1 (en) * 2007-06-15 2008-12-18 Trimmer Douglas E Concrete form system for low-clearance applications
US8011637B2 (en) * 2007-06-15 2011-09-06 Precise Forms, Inc. Concrete form system for low-clearance applications
US20160362867A1 (en) * 2009-07-15 2016-12-15 Megamold Infrastructure Systems LLC Modular construction mold apparatus and method for constructing concrete buildings and structures
US9279260B2 (en) 2012-10-12 2016-03-08 Norton Baum Modular panel concrete form for self-lifting concrete form system
US9333672B1 (en) * 2015-04-09 2016-05-10 S.G.L. Gavish Yizum U'vnia, Ltd. Hardenable material structure construction apparatus and method
US9861190B2 (en) * 2015-04-30 2018-01-09 Seobo Industrial Co., Ltd. Wood gang form and method for constructing concrete building using same
US20230340793A1 (en) * 2016-12-26 2023-10-26 Domingo De Guzman Claro Carrascal Formwork mechanism for casting and moulding concrete, comprising a coffer with a sheet and four plates arranged around the sheet's perimeter
US12297652B2 (en) * 2016-12-26 2025-05-13 Domingo De Guzman Claro Carrascal Formwork mechanism for casting and moulding concrete, comprising a coffer with a sheet and four plates arranged around the sheet's perimeter
US20190323246A1 (en) * 2018-03-06 2019-10-24 Peri Gmbh Formwork apparatus and method for producing vertical wall sections that include connection reinforcement elements for a floor
US11105104B2 (en) * 2018-03-06 2021-08-31 Peri Formwork Systems, Inc. Formwork apparatus and method for producing vertical wall sections that include connection reinforcement elements for a floor
CN117090324A (zh) * 2023-09-14 2023-11-21 中建三局总承包建设有限公司 一种装配式墙板凹凸错缝式竖向接长施工结构

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DE2128609A1 (de) 1972-01-20
GB1343051A (en) 1974-01-10
FR2094998A5 (OSRAM) 1972-02-04

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