US3199827A - Forms for plastic material - Google Patents
Forms for plastic material Download PDFInfo
- Publication number
- US3199827A US3199827A US249356A US24935663A US3199827A US 3199827 A US3199827 A US 3199827A US 249356 A US249356 A US 249356A US 24935663 A US24935663 A US 24935663A US 3199827 A US3199827 A US 3199827A
- Authority
- US
- United States
- Prior art keywords
- members
- pair
- panels
- tie
- stringer
- 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
Links
Images
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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
- E04G17/0651—One-piece elements
- E04G17/0654—One-piece elements remaining completely or partially embedded in the cast material
-
- 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
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/07—Tying means, the tensional elements of which are fastened or tensioned by means of wedge-shaped members
- E04G17/0707—One-piece elements
- E04G17/0721—One-piece elements remaining completely or partially embedded in the cast material
Definitions
- An object of this invention is to provide means for making forms including panels which can readily be set up with a minimum of construction operations, which will remain in proper alignment without bulging, and which can gently and readily be stripped from concrete or other material while the material is still relatively freshly set. The panels can then be removed without destroying them or disturbing the pour, and the panels are re-usable.
- Still another object of the invention is to provide means for melting forms wherein panels are held accurately aligned from the inside, and which does not require external side support. Such means also adds its strength as reinforcement to the structure being built, because it remains in the material. These objectives are accomplished by holding the panels from the inside in the space ultimately to be occupied by the poured material.
- Still another object of the invention is to provide a tie construction which can be made of wire, for holding the panels in alignment.
- a wire tie can expeditiously be manufactured with conventional spotwelding machinery.
- a wire tie is small in bull; and light in weight, but still very stron
- Yet another object of this invention is to enable panels to be used of a type which can be left in place after the material has hardened, if desired, where it provides thermal insulation.
- a tie is utilized for supporting a pair of spaced-apart panels, the tie including a pair of spaced-apart stringer members, each of which has a dimension of length. These dimensions of length are non-orthogonally oriented.
- a plurality of diagonal members is attached to and rigidly interconnects the stringer members. Adjacent diagonal members intersect each other substantially at a stringer member. These members are substantially co-planar, in that all lie closely together to form a nearly fiat structure.
- a plurality of pairs of abutment means are provided on the tie, each pair comprising two elements, one element disposed on each side of the pair of stringer members.
- the pairs of abutment means are attached to members at different locations along the dimension of length of the stringer members.
- Retention means for each abutment means is engaged a and 3,199,327 Patented Aug. 16, 1965 "ice to the tie and adapted to stand on the opposite side of a panel from the abutment means, thereby to hold the panel against the abutment means in proper alignment.
- At least some of the abutment means are notched so as to provide a breakaway feature inside the pour for releasing the panels and for thereby leaving a flush concrete surface after the panels are stripped.
- Still another preferred but optional feature of the invention resides in providing panels whose lower extremity is tapered so as expeditiously to be removable from concrete in which it may have been set.
- PEG. 1 is a cross-section of a concrete pour, showing partly in elevation and partly in cross-section the preferred embodiment of the invention
- FIGS. 2 and 3 are top and side views of a portion of FIG. 1;
- FIG. 4 is a cross-section view partly in elevation and partly in cross-section of another concrete pour showing still another embodiment of the invention in elevation;
- FIGS. 5 and 6 are top and side views of portions of FIG. 4;
- FIG. 7 is a cross-section view partly in elevation and partly in cross-section of still another concrete pour showing in elevation yet another embodiment of the invention.
- FIG. 8 is a cross-section of an optional embodiment of panel for use with this invention.
- PEG. 9 is a right-hand view of PEG. 8;
- FIG. 10 is a fragmentary elevation, partly in cutaway cross-section, showing an alternate embodiment of abutment and fastener means according to the invention.
- PEG. 11 is a side elevation, partly in cross-section, of still another embodiment of abutment and fastener means according to the invention.
- FIG. 12 illustrates a portion of the concrete pour of FIG. 1 or 4 after removal of the panels therefrom.
- FIG. 1 illustrates a concrete pour it incorporating the preferred embodiment of the invention.
- the pour is a typical foundation which includes a footing 11 and a stem wall 12.
- the object or" the invention is to provide a form for a stem wall atop which a slab or conventional flooring can be erected.
- the pour is generally made in two steps, the footing first, and thereafter the stem wall.
- the invention includes a pair of panels 13, 14, which in the embodiment of FIG. 1 are identical.
- the panels in all embodiments are of indefinite length and height, these dimensions being selected to suit the job. Also, the dimensions of the ties are similarly selected.
- Panels 13 as have upper holes 15, 16, respectively, and lower tapered edges l7, 18.
- tie 2! The presently preferred embodiment of tie 2! is shown in FIG. 1, this tie having a pair of stringer members 21, 22, which have dimensions of length extending vertically in FIG. 1. These stringer members are nonrthogonally related, and in the preferred embodiment are parallel. The ties are spaced apart along the pour as needed for strength.
- Diagonal members 23, 24, 25, 26 are attached to the stringer members preferably by butt welds formed at their intersections therewith. It will be observed that this forms a plurality of contiguous three-link systems, which resist shear and bending movement within the tie, and holds the panels correctly and rigidly aligned by exerting restraint on relative shear and bending movements.
- Cross-members 27, 28 are attached to the stringers, such as by spotwelding, and extend beyond opposite sides of the pair of stringers.
- a pair of abutment means stands on opposite sides of the pair of stringer members and comprises a pair of tabs 29, 30.
- a second pair of abutment means 31, 32 comprises a first arm of a U-shaped bend 33, 34- on cross-member 28.
- Retention means are provided for each abutment means and are engaged to the tie. In the illustrated embodiment, they are integral with the cross-members.
- the retention means associated with cross-member 27 comprises a pair of U-shaped bends 35, 36 (see FIGS. 2 and 3), which U-shaped bends are adapted to pass through holes and 16 in the panels and to stand on the opposite side of the respective panel from the stringer members.
- Fastener means comprise wedges 37, 38, which are adapted to be placed in bends and 36 to force the panel against the abutment means.
- the retention means associated with cross-member 28 comprises second arms 39, 46 integral with cross-member 28. Initially, the second arms have the structure bers will readily torque off at the time for removing the V panel. The result of this torque-off is shown in detail in FIG. 12.
- FIG. 4 utilizes panels 56, 51, which have even more sharply tapered edges 52, 53 than panels 13 and 14.
- the purpose of illustrating different panels in FIGS. 1 and 4 is to illustrate that the taper can be varied at the lower edges of the panels.
- panels 50 and 51 include both upper holes 54, 55 and lower holes 56, 57. Should the panel be intended to remain in place, the lower edge need not be tapered.
- Tie 58 includes stringer elements 59, 60, and diagonal elements 61, 62, 63 and 64 as in the embodiment of FIGJI.
- FIG. 4 A slightly different type of cross-member is illustrated in FIG. 4, both cross-members 65, 66 being identical. They differ from the cross-members in FIG. 1 in that the U-shaped bend 67 forming retention means lies in the plane of the sheet rather than perpendicular to it as in FIG. 1. Tab 68 is on the free end of the bend. Wedges 69 are passed through the bends to hold the panel against the abutment means as in FIG. 1.
- FIG. 7 is shown in combination with a pour 70, and includes a pair of panels 71, 72, each having tapered lower edges, and holes as in the embodiment of FIG. 4.
- Tie 73 includes a pair of stringer members 74, 75 and diagonal members 76, '77, 78, 79.
- the adjacent diagonal members of this embodiment instead of intersecting the stringer members at a single coincident point, meet the stringers at substantially a point-intersection, but actually at spaced-apart locations 80, 81 (with respect to diagonals 76 and 77, which relationship applies to the other diagonals).
- this spacing apart is negligible in effect when compared to the effects of the other dimen sional relationships, and for practical purposes, points 80 and 81 are spoken of as coincident. The spacing between them does, however, enable the diagonals to be continued beyond the stringer members so as to form abutment means 82, 83, 84, 85, 86.
- Cross-members 87, 88 comprise wire pieces welded to the stringer members.
- Fastener means 89, 90, 91, 92 comprise speed nuts or other similar devices adapted to engage notches or threads, such as threads 93 on crossmember 87.
- FIG. 8 shows a panel construction which is particularly suitable for use with this invention because it may be made of light metal such as aluminum. It has a face section 95, an upper flange 96 for rigidity, and a lower tapered edge '97 formed by a double fold in the lower edge of the material. For most convenient use, chamfers 98, $9 are provided on the lower edges, as best shown in FIG. 9.
- FIG. 10 shows an alternate embodiment of cross-member 16%, which may be utilized in place of cross-members of other embodiments, if desired, for use with panels wherein a hole is provided.
- enlargements 101 are provided on the cross-member for abutment means.
- Fastener means 102 can bear against a panel 103 by virtue of engagement with threads 104, to hold a panel in position.
- FIG. 11 shows an alternate use of the cross-member shown in FIG. 3. It is particularly suitable when an insulating type of material is used for the panel which is to remain in place.
- panel 105 may be made out of bagasse waste, cellulose, wood or the like, and a nail 106 may be driven into the panel through the bend to hold the tie in place.
- the stringer and diagonal members are butt-welded, because then they lie in the same plane, and reduce the thickness of a stack of a given number of ties. This accomplishes a saving in slipping costs.
- the members and elements are substantially coplanar, but actually lie in a pair of parallel planes spaced apart by the thickness of the material. All tie embodiments are essentially fiat, .and the diagonal and stringer members are therefore spoken of as being co-planar in all embodiments.
- the ties (of which there are a number for each panel) and panels are assembled. Then the lower portion of the assembly is pressed into the footing while the footing is still soft.
- the ties preferably, but not necessarily, project below the lower edges of the panels, and aid in supporting the assembly by virtue of their insertion into the footing material.
- the lower edges of the panels are not ordinarily pressed more than about an inch into the footing. This alone firmly supports the assembly, and the pour can then be made.
- Another erection technique is first to place the ties in the soft footing, and then assemble the panels to them, but this involves taking care with dimensions, and is much slower. The use of this technique would be rare.
- the stem wall is poured.
- the wedges or other fastener means may be removed.
- the end of the cross-member is twisted so that it torques olf at the notches.
- These notches are disposed well inside the concrete pour so that a flush concrete surface results.
- the panel can then be removed.
- a slab floor is to be poured instead of a foundation wall for a conventional foundation, the inside panel is often left in place even after the slab is poured.
- the outside panel is not stripped off until after the slab itself is poured, because it ordinarily extends above the elevation of the inside panel :3 so as to establish the elevation of the slab itself and to form the upper outside edge of the slab.
- the panels are very readily stripped while the pour is still in its initially set condition. Because no strong forces or vibration are needed to accomplish this stripping operation, the pour is not disturbed, and the panels may thereafter be reused.
- the ties remain inside the pour where they serve to reinforce the same.
- the devices provide a tie construction in which shear forces in the plane of the tie are resisted between the stringer elements and which thereby hold the panels in alignment. Some relative shear motion may result between the panels due to flexibility of those portions of the cross-members which project beyond the stringer members. However, this length of projection is not ordinarily more than one inch and the amount of flexibility is therefore quite small. It has been found that this is less than ordinarily results from the use of plank or plywood forms, and the resulting construction is very much more accurate.
- Fairly stilt wire is used to resist bending and shear movement.
- the ties could be stamped or poured, and could be of plastic, metal, or other suitable material as desired.
- the construction is quick and expedient, it being necessary only for the workmen to press the ties and panels directly into the footing while still soft, thereby enabling accurate and quick alignment to be attained.
- This invention provides a carefully controlled volumetric use of concrete, particularly in slab construction, because both sides of the pour, instead of merely one, are under form control.
- a randomly formed ditch edge is filled in with concrete when the slab is poured, costing as much as three cubic yards of extra concrete in an average tract home.
- panels can be left in place, such as in FIG. 11, and the random ditch edge can be filled with earth or sand before pouring the upper slab surface, thereby saving this wasted concrete.
- the panel may be treated for vermin resistance, if desired, such as the Ferrox treatment by the Celotex Corporation.
- a tie according to claim 1 in which at least one pair of abutment means comprises a first arm of a U- shaped bend, and in which a pair of said retention means comprises a second arm of the U-shaped bend, the arms being opposite and spaced apart from the first arm so as to hold a panel betwen them.
- a tie according to claim 1 in which at least one pair of abutment means comprises a tab, and in which a pair of said retention means each comprises a bend interconnecting a member and said tab, and fastener means engaging said bend in order to hold the panel against the tab.
- a tie according to claim 1 in which at least one pair of the abutment means comprises extensions of the diagonal member beyond the stringer members, and in which the retention means comprises extensions of the tie laterally beyond the pair of stringer members, and fastener means engageable to the extensions.
- a tie according to claim 1 in which a cross member is attached to the stringer members and extends laterally beyond them to form the abutment means.
- each of said ties comprising a structure lying in substantially a single plane and resisting relative shear motion between the panels in the planes of each said tie, said structure comprising: a pair of spaced-apart stringer members each having a dimension of lengths, said dimensions being non-orthogonally oriented; a plurality of diagonal members attached to and rigidly and non-rotatably interconnecting the stringer members, adjacent diagonal members intersecting each other substantially at a common intersection with a stringer member; a plurality of pairs of abutment means, each pair comprising two elements, one disposed on each side of the pair of stringer members, the pairs being attached to members at difierent locations along the dimension of length of the stringer members; and retention means for each abutment means engaged to the tie and adapted to stand on the opposite side of a panel from the abutment means to hold a panel thereagainst, the structure comprising: a pair of spaced-apart stringer members each having a dimension of lengths, said dimensions being non-
- a combination according to claim 8 in which at least one pair of abutment means comprises a first arm of a U-shaped bend, and in which a pair of said retention eans comprises a second arm of the U-shaped bend, the arms being opposite and spaced apart from the first arm so as to hold a panel between them.
- a combination according to claim 8 in which at least one pair of abutment means comprises a tab, and in which a pair of said retention means each comprises a bend interconnecting a member and said tab, and fastener means engaging said bend in order to hold the panel against the tab.
- a combination according to claim 8 in which at least'one pair of the abutment means comprises extensions of the diagonal member beyond the stringermem bers, and in which the retention means comprises extensions'of the tie laterally beyond the pair of stringer members, and fastener means engageable to the extensions.
- a combination according to claim 8 in which a cross-member is attached to the stringer members and extends laterally beyond them to form the abutment means.
Landscapes
- 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)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US249356A US3199827A (en) | 1963-01-04 | 1963-01-04 | Forms for plastic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US249356A US3199827A (en) | 1963-01-04 | 1963-01-04 | Forms for plastic material |
Publications (1)
Publication Number | Publication Date |
---|---|
US3199827A true US3199827A (en) | 1965-08-10 |
Family
ID=22943116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US249356A Expired - Lifetime US3199827A (en) | 1963-01-04 | 1963-01-04 | Forms for plastic material |
Country Status (1)
Country | Link |
---|---|
US (1) | US3199827A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263956A (en) * | 1964-09-14 | 1966-08-02 | Dayton Sure Grip And Shore Com | Concrete accessory |
US3288428A (en) * | 1965-06-08 | 1966-11-29 | Dur O Wal National Inc | Preassembled tie construction |
US3353322A (en) * | 1963-08-27 | 1967-11-21 | Guddal Karl | Method of making a wall structure |
US3364640A (en) * | 1964-07-09 | 1968-01-23 | Guddal Karl | Building stud |
US3402522A (en) * | 1965-05-21 | 1968-09-24 | Guddal Karl | Method of making a cast in place wall |
US3415484A (en) * | 1964-08-28 | 1968-12-10 | Dynamit Nobel Ag | Bracing and spacing device for concrete wall forms |
US3466825A (en) * | 1963-08-27 | 1969-09-16 | Karl Guddal | Wall structure |
US3530631A (en) * | 1967-12-01 | 1970-09-29 | Karl Guddal | Building stud and wall construction |
US4034950A (en) * | 1975-10-14 | 1977-07-12 | Powell John M | Form tie |
DE2641654A1 (en) * | 1976-09-16 | 1978-03-23 | Heinz W Dipl Ing List | Thin walled reinforced concrete form walls connector - comprises anchor bar with hooked hole and slit for clamping wedge |
US4145024A (en) * | 1977-10-27 | 1979-03-20 | Ward Edward B | Form for reinforced concrete wall |
US4166603A (en) * | 1978-02-28 | 1979-09-04 | Ward Edward B | Scaffold for poured concrete walls and forms |
US4391429A (en) * | 1981-09-04 | 1983-07-05 | Powell John M | Form tie |
US6003281A (en) * | 1995-05-04 | 1999-12-21 | The University Of Sheffield | Reinforced concrete structural elements |
US6233891B1 (en) * | 1999-03-11 | 2001-05-22 | Keith A. De Cosse | Prefabricated building system |
US20050108985A1 (en) * | 2003-11-25 | 2005-05-26 | Leonid Bravinski | Systems and methods of erecting reinforced concrete walls, including concrete walls with textured surfaces |
US7191572B2 (en) | 2002-03-19 | 2007-03-20 | Izquierdo Luis W | Construction method and system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US904588A (en) * | 1908-02-26 | 1908-11-24 | William T Wightman | Building-block and wall constructed thereof. |
GB190920844A (en) * | 1909-09-11 | 1910-06-30 | George Edward Montagnon | Improvements in Skeleton Framework for Reinforced Concrete Structures. |
US1072760A (en) * | 1913-07-24 | 1913-09-09 | John Joshua Miller | Ornamental reinforced-concrete veneer. |
US1361315A (en) * | 1912-04-02 | 1920-12-07 | Dietrichs Charles | Apparatus for building concrete structures |
FR612813A (en) * | 1926-03-16 | 1926-11-02 | Wall construction process | |
US2190700A (en) * | 1938-12-31 | 1940-02-20 | Samuel S Colt | Spreader for concrete forms |
US2296036A (en) * | 1940-05-22 | 1942-09-15 | Laucks I F Inc | Concrete form panel |
DE801299C (en) * | 1948-10-23 | 1951-01-04 | Viktor Ruczka | Formwork element for the production of infill walls |
-
1963
- 1963-01-04 US US249356A patent/US3199827A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US904588A (en) * | 1908-02-26 | 1908-11-24 | William T Wightman | Building-block and wall constructed thereof. |
GB190920844A (en) * | 1909-09-11 | 1910-06-30 | George Edward Montagnon | Improvements in Skeleton Framework for Reinforced Concrete Structures. |
US1361315A (en) * | 1912-04-02 | 1920-12-07 | Dietrichs Charles | Apparatus for building concrete structures |
US1072760A (en) * | 1913-07-24 | 1913-09-09 | John Joshua Miller | Ornamental reinforced-concrete veneer. |
FR612813A (en) * | 1926-03-16 | 1926-11-02 | Wall construction process | |
US2190700A (en) * | 1938-12-31 | 1940-02-20 | Samuel S Colt | Spreader for concrete forms |
US2296036A (en) * | 1940-05-22 | 1942-09-15 | Laucks I F Inc | Concrete form panel |
DE801299C (en) * | 1948-10-23 | 1951-01-04 | Viktor Ruczka | Formwork element for the production of infill walls |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3353322A (en) * | 1963-08-27 | 1967-11-21 | Guddal Karl | Method of making a wall structure |
US3466825A (en) * | 1963-08-27 | 1969-09-16 | Karl Guddal | Wall structure |
US3364640A (en) * | 1964-07-09 | 1968-01-23 | Guddal Karl | Building stud |
US3415484A (en) * | 1964-08-28 | 1968-12-10 | Dynamit Nobel Ag | Bracing and spacing device for concrete wall forms |
US3263956A (en) * | 1964-09-14 | 1966-08-02 | Dayton Sure Grip And Shore Com | Concrete accessory |
US3402522A (en) * | 1965-05-21 | 1968-09-24 | Guddal Karl | Method of making a cast in place wall |
US3288428A (en) * | 1965-06-08 | 1966-11-29 | Dur O Wal National Inc | Preassembled tie construction |
US3530631A (en) * | 1967-12-01 | 1970-09-29 | Karl Guddal | Building stud and wall construction |
US4034950A (en) * | 1975-10-14 | 1977-07-12 | Powell John M | Form tie |
DE2641654A1 (en) * | 1976-09-16 | 1978-03-23 | Heinz W Dipl Ing List | Thin walled reinforced concrete form walls connector - comprises anchor bar with hooked hole and slit for clamping wedge |
US4145024A (en) * | 1977-10-27 | 1979-03-20 | Ward Edward B | Form for reinforced concrete wall |
US4166603A (en) * | 1978-02-28 | 1979-09-04 | Ward Edward B | Scaffold for poured concrete walls and forms |
US4391429A (en) * | 1981-09-04 | 1983-07-05 | Powell John M | Form tie |
US6003281A (en) * | 1995-05-04 | 1999-12-21 | The University Of Sheffield | Reinforced concrete structural elements |
US6233891B1 (en) * | 1999-03-11 | 2001-05-22 | Keith A. De Cosse | Prefabricated building system |
US7191572B2 (en) | 2002-03-19 | 2007-03-20 | Izquierdo Luis W | Construction method and system |
US20050108985A1 (en) * | 2003-11-25 | 2005-05-26 | Leonid Bravinski | Systems and methods of erecting reinforced concrete walls, including concrete walls with textured surfaces |
US7934693B2 (en) * | 2003-11-25 | 2011-05-03 | Bravinski Leonid G | Formwork for erecting reinforced concrete walls, including concrete walls with textured surfaces |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3199827A (en) | Forms for plastic material | |
US2017553A (en) | Form for plastic structural work | |
US3130470A (en) | Concrete wall form installation | |
US4669234A (en) | Prefabricated wall section | |
US2724261A (en) | Precast column attaching means | |
US3422585A (en) | Foundation form spacer and sill fastener | |
US3979868A (en) | Composite concrete and steel floor construction | |
US4783935A (en) | Monolithic foundation system for buildings and form therefor | |
US3288428A (en) | Preassembled tie construction | |
US3845594A (en) | Steel joist or composite steel and concrete construction | |
US2442292A (en) | Form for plastic structural work | |
US3047931A (en) | Forms for concrete construction | |
US6298630B1 (en) | Wall plate for attaching beams to masonry walls | |
US4553729A (en) | Multi-panelled concrete forming structure for forming flat curved walls | |
US2107427A (en) | Mold for concrete walls or the like | |
US4465257A (en) | Concrete forming structure having a double hinge filler | |
US3385557A (en) | Multi-purpose building member | |
US3841597A (en) | Floor form with connected truss supports | |
US3819143A (en) | Formwork for concrete walls | |
US4744541A (en) | Multiple purpose concrete form | |
JP2008101417A (en) | Form structure, panel support member, recessed corner panel support member, projected corner panel support member, and form construction method | |
US3362674A (en) | Adjustable concrete column form and panel therefor | |
GB1585700A (en) | Concrete form system | |
US3735953A (en) | Concrete beam forms | |
US3442482A (en) | Form clamp |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPA Free format text: SECURITY INTEREST;ASSIGNOR:PARKER-PETRIE, INC.;REEL/FRAME:003828/0673 Effective date: 19810109 |
|
AS | Assignment |
Owner name: DUR-O-WAL, INC. Free format text: CERTIFICATE OF CORRECTION TO CORRECT ERROR IN AMENDMENT IN ASSIGNEES NAME, FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JAN. 12, 1981 FILED IN THE OFFICE OF RECORDER OF DEEDS ON 1/12/81.;ASSIGNOR:DUROWALL, INC.;REEL/FRAME:003842/0323 Effective date: 19810319 Owner name: DUR-O-WAL, INC., NEW YORK Free format text: CERTIFICATE OF CORRECTION TO CORRECT ERROR IN AMENDMENT IN ASSIGNEES NAME, FILED IN THE OFFICE OF SECRETARY OF STATE OF DELAWARE ON JAN. 12, 1981 FILED IN THE OFFICE OF RECORDER OF DEEDS ON 1/12/81;ASSIGNOR:DUROWALL, INC.;REEL/FRAME:003842/0323 Effective date: 19810319 |
|
AS | Assignment |
Owner name: DUR-O-WAL, INC., A/K/A, PARKER-PETRIE, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPANY OF CHICAGO;REEL/FRAME:004476/0409 Effective date: 19850925 |