US3722849A - Concrete form clip - Google Patents

Concrete form clip Download PDF

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US3722849A
US3722849A US3722849DA US3722849A US 3722849 A US3722849 A US 3722849A US 3722849D A US3722849D A US 3722849DA US 3722849 A US3722849 A US 3722849A
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panels
clip
footing
flanges
tongues
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W Luyben
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W Luyben
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/12Tying means; Spacers ; Devices for extracting or inserting wall ties with arms engaging the forms

Abstract

A metal bar has upturned end flanges on opposite ends of a base portion arranged to provide stops against the outward movement of a pair of vertical form panels resting on the clip. Spaced inwardly from said end flanges is a pair of outwardly directed tongues struck out from said base portion in inclined positions with elevated ends spaced from said flanges. The form panels are received in the spaces between the end flanges and the tongues. Panels improperly placed in the mid portion of the clip may be readily pushed out against the end flanges or the pouring of the concrete will push the panels out to their proper positions. The tongues provide sloping ramp surfaces to facilitate the outward movement of the panels. The clip is also utilized in making forms for the monolithic pouring of a wall and footing. In one embodiment the clip is mounted on stakes in the footing pour area to support the wall form panels. In another embodiment in similar arrangement the clips are made long enough for mounting on the top edges of the footing form panels.

Description

United States Patent 91 Luyben 51 Mar. 27, 1973 [54] CONCRETE FORM CLIP William John Luyben, 14005 NE.

Marine Drive, Portland, Oreg. 97230 22 Filed: Nov. 5, 1971 21 Appl.No.: 196,130

[76] Inventor:

[52] 0.8. CI. ..249/219 R, 249/34 [51] Int. Cl ..E04g 17/14 [58] Field of Search ..249/219 R, 219 W, 34

[56] References Cited UNITED STATES PATENTS Primary Examiner-J. Spencer Overholser Assistant Examiner-B. D. Tobor Att0rneyLee R. Schermerhorn [57] ABSTRACT A metal bar has upturned end flanges on opposite ends of a base portion arranged to provide stops against the outward movement of a pair of vertical form panels resting on the clip. Spaced inwardly from said end flanges is a pair of outwardly directed tongues struck out from said base portion in inclined positions with elevated ends spaced from said flanges. The form panels are received in the spaces between the end flanges and the tongues. Panels improperly placed in the mid portion of the clip may be readily pushed out against the end flanges or the pouring of the concrete will push the panels out to their proper positions. The tongues provide sloping ramp surfaces to facilitate the outward movement of the panels.

The clip is also utilized in making forms for the monolithic pouring of a wall and footing. In one embodiment the clip is mounted on stakes in the footing pour area to support the wall form panels. In another embodiment in similar arrangement the clips are made long enough for mounting on the top edges of the footing form panels.

9 Claims, 11 Drawing Figures Patented March 27, 1973 3,722,849

2 Sheets-Sheet 1 INVENTOR WlLLlAM JOHN LUYBEN QQW Patented March 27, 1973 3,722,849

2 Sheets-Sheet 2 INVENTOR WILLIAM JOHN LUYBEN BYZVW CONCRETE FORM CLIP BACKGROUND OF THE INVENTION This invention relates to improvements in a concrete form clip and has particular reference to clips for forms used in the construction of concrete footings and walls.

Using conventional form clips, it is difficult to set the form panels in proper positions to insure a uniform thickness of wall. Once improperly placed it is difficult to shift a panel to proper position. There are also other disadvantages in using conventional types of form clips.

Objects of the invention are, therefore, to provide an improved form clip, to provide a form clip which facilitates proper positioning of the form panels for uniform wall thickness, to provide a form clip which will permit the automatic adjustment of the panels to their proper positions by the pressure of the poured concrete when the panels have been improperly set in the clips, to provide a form clip which will stabilize an upstanding panel, to provide a form clip which will hang in approximately horizontal outstanding position from the upper edge of a form panel, to provide a form clip having a novel arrangement of inclined tongues for the purposes described, and to utilize the clip in making forms for the monolithic pouring of walls and footings.

SUMMARY OF THE INVENTION The present clip has a pair of upturned end flanges and a novel arrangement of inclined tongues between the end flanges. The direction of inclination of the tongues permits the form panels to move outward readily into their proper positions either by applying manual pressure or by the pressure of the concrete when the panels are improperly set in the middle of the clips.

Also, the tongues may act as struts to hold the panels temporarily in upright position while the form is being erected. In inverted position of the clip the struts hold the clip in outstanding, near horizontal position from .the upper edge of a panel until the clips and panels are fully assembled and secured.

The clips are also utilized in making forms for the monolithic pouring of walls and footings, either by mounting the clips on stakes in the footing pour area, or on the top edges of the footing form panels, to support the wall form panels.

The invention will be better understood and the foregoing and other objects and advantages will become apparent from the following description of the preferred embodiment illustrated on the accompanying drawings. Various changes may be made, however, in the details of construction and arrangement of parts and certain features may be used without others. All such modifications within the scope of the appended claims are included in the invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are perspective'views of a form clip embodying the invention;

FIG. 3 is a view on the line 3-3 in FIG. 1;

FIG. 4 is a sectional view through a form for a concrete footing showing one use of the present clip;

FIG. 5 is a perspective view of a form for a low wall on a precast footing, showing further applications of the clip;

FIG. 6 is a view on the line 6-6 in FIG. 5;

FIG. 7 is a view showing a clip of longer dimension applied to box panel form members;

FIG. 8 is a cross sectional view showing the clip of FIGS. 1 and 2 utilized in a form for the monolithic pouring of a wall and footing;

FIGS. 8A and 8B show modifications for monolithic pouring; and

FIG. 9 is a cross sectional view showing the clip of FIG. 7 utilized in a monolithic pouring form.

DESCRIPTION OF THE PREFERRED EMBODIMENT As shown in FIGS. 1 and 2, the clip C is formed from a flat metal bar having a base portion 10 and end flanges 11 bent at right angles to the base portion. In this forming process the base portion 10 is preferably curved transversely to impart added stiffness as shown in FIG. 3. Nail holes are preferably formed at 14, 15 and 16.

A pair of tongues 20 is struck out from the base portion 10, leaving holes at 21 between the bases of the tongues and flanges 11. The free ends of the tongues are directed toward the flanges 11 with the length of the tongues inclined away from these free ends. Each tongue 20 is inclined, preferably at an angle of about 30 from the base portion 10 so that the tongue covers or overlies the hole 21, although the precise degree of inclination is not critical. The position and angle of the tongue are such that the dimension T in FIG. 6 is slightly in excess of the thickness of the panels P of the form.

In erecting a form for a footing as shown in FIG. 4, only top clips are necessary. The lower edges of footing form panels F are kept from spreading from the pressure of wet concrete poured in the space S by stakes 25 driven into the ground 26, the upper edges of the panels are kept from spreading by the flanges 1 1 of the clips, the tongues 20 preventing the panels from falling inward until nails 27 or 28 are driven. It will be apparent that the tongues 20 make the nails 27 or 28 unnecessary except to prevent the clips from being knocked out of place during the pouring of the concrete.

FIG. 5 illustrates the above-mentioned advantages of the present form of clip. Panels P, and P, have been erected on the footing 30 by means of clips C and C,, the nails 27 being optional. Top clip C, is arranged the same as the clip shown in FIG. 4. Bottom clip C, is identical to the clip C, except that it is inverted and secured to previously poured footing 30 by nails, screws, bolts or dowels in the holes 14, these instrumentalities being secured in the footing before the concrete in the footing has fully hardened or secured in wood blocks set in the wet concrete.

The joint J, between panels P, and P, can also be offset or staggered from the joint at J, between panel P, and the adjoining panel, not shown, making panel P, in a position opposite the joint J This allows the stiffness of panel P, to be transferred through clips C,, C,, C,, C, to each side of joint J, thereby holding panels P, and P, in line with each other. This lining up is accomplished without nailing or otherwise connecting panels P, and P, together.

Nail 27 in hole 15 of clip C, into panel P, would be used in event the footing were poured with an irregular surface and clip C, needed to be held up against the bottom of panel P, to prevent flange 11 from bending outwardly from pressure being exerted at the extreme upper end of flange 11. Nail 27 in clip C would be used to prevent accidental dislodging of the clip during the concrete pouring process.

With reference to FIG. 6, it will be observed that if the bottom edge of a panel is inadvertently set in the space between the two tongues 20 as indicated at P instead of in the space T, the pouring of the concrete will automatically force the panel outward into its proper position at P,. The fluid pressure of wet concrete acting against the inside face of a panel at P causes it to slide up the ramp surface of inclined tongue 20 until the outward movement of the panel is stopped by the end flange 11 of the clip. Flange 11 is higher than the upper end of tongue 20.

The desired uniform thickness of wall is thereby assured, notwithstanding possible carelessness on the part of the workmen. If the improper position of the panel between the tongues 20 is discovered before the concrete is poured, the panel may be readily moved outward by sliding it upward along the ramp surface of the tongue until the panel falls into the spaces T.

If the panels are heavy and are inadvertently placed in position P or on top of tongue 20 then tongue 20 may be bent downwardly by the action of moving from P to P,. In any case, tongue 20 will not restrict the outward movement of the panel from P to P, but once the panel is properly placed in space T, the tongue 20 will restrict the tendency of reverse movement from P, to P,,. This one-way holding action is also effective at the top of the form.

The present tongue arrangement also permits the form panels to be clamped securely and rigidly in the clips if desired. It will be apparent that by pressing the tongue 20 downward against the inside face of panel P, in FIG. 6, the tongue may be caused to tightly clamp the panel against flange 11. In a similar manner, the top clips may be clamped on the panels by bending tongues 20 upward against the faces of the panels. This may be done by a pair of pliers.

The next pair of panels in FIG. is to be supported and positioned by a bottom clip C secured by nails 31 in the holes 14. The holes 14 are spaced apart a sufficient distance to lie on opposite sides of the usual keyway 32 in the footing 30. A panel P has been set in the clip C and other bottom clips, not shown, similar to clip C If the space T is made equal to the thickness of the panel, the tongue acts as a strut to brace the panel P and hold it in upright position temporarily until the other parts are assembled. In such case, the top clip C is self-supporting on the upper edge of panel P with tongue 20 forming a strut bearing against the inside face of the panel to hold the clip in outstanding, approximately horizontal position.

Thus, a series of the bottom clips C hold the panel P upright with a series of top clips C in position to receive an opposite panel in alignment with the panel P,. The temporary supporting functions of the tongues 20 make it convenient for a single workman to install the form. For convenience of illustration, form parts are illustrated in FIG. 5 for a very low wall but it will be understood that forms for a considerably higher wall may be erected in the same manner, the panels including walers and conventional form ties at intermediate height if necessary.

It is generally desirable to make the dimension T in FIG. 6 somewhat greater than the thickness of the panel in order to insure that a panel moved outward from P to P, will readily drop into space T as above described in connection with clip C,. In such case, the tongue 20 may not function satisfactorily as a strut or brace to maintain a temporary perpendicular relationship between the clip and panel in the erection of the form as described in connection with clips C and C in FIG. 5. The present form of clip provides the option of making dimension T optimum for the feature which is most desired.

Also, even when the dimension T is somewhat greater than the thickness of the panels, the strut or bracing action described above may be obtained by swinging or skewing the clips slightly as indicated by ar rows 33 in FIG. 5. This has the effect of reducing the dimension T so that bottom clip C will hold panel P upright and top clip C will support itself in outstanding position on the top edge of the panel.

FIG. 7 illustrates a modification in which the clips C are the same as previously described except that the distance T is extended to include the width of framing member 35. In this case the panels P are box panels having horizontal framing members 35 at their upper and lower edges and similar vertical framing members on the opposite ends of the panels. The features and advantages of top and bottom clips C are the same as explained in connection with FIGS. 5 and 6. The framing members 35 are usually 2x2, 2x3 or 2x4 inch pieces of lumber attached or not attached to the panel and positioned either on edge or flat against the panel.

FIGS. 8 and 9 show two different methods of using the clip for pouring the footing and the wall at the same time, thus achieving a monolithic pour and eliminating the cold joint between footing and wall and also realizing the economies of a single pouring operation.

In FIG. 8 the clip C of FIGS. 1 and 2 is supported on a pair of stakes 40 between footing forms F and held in place by nails 41 in holes 16. Footing forms F are separate from the rest of the forms and any width footing 30 may be poured with any width wall W. Wall panels P are positioned by the clip C as described in connection with FIGS. 5 and 6.

The clips C may also be supported in elevated position in other ways. For example, the clips may be nailed to the sides of stakes 40 by the use of nail holes 15. Or, using the nail holes 14, a clip may be nailed to the top of a single wide stake which spans the distance between holes 14. In a similar manner a clip may be nailed to the top of a concrete block or other suitable support which will be incorporated in the footing 30.

Still another way of mounting the clips on stakes is shown in FIG. 8A. Here the tops of the stakes 40 enter the holes 21 and are stopped against tongues 20 without the need for nails 41. The tops of the stakes may be horizontal or slanted, as shown. The footing and wall panels are not shown.

As another alternative, in FIG. 8B the wall form panels P are nailed to the sides of stakes 40, or supported on posts or blocks, at the desired elevation above the ground and clips C are held up against the bottom edges of the panels by nails 27 through holes 15, the clips being applied in intervals between the supporting stakes, posts or blocks, as shown.

In FIG. 9 the clip C, as shown in FIG. 7 spans the distance between footing forms F and bears the weight of wall form panels P and transfers this weight to the tops of footing forms F. The use of nail 45 through hole 16 (FIG. 7) into the top edge of footing form F holds the outward pressure of the concrete against form F and also holds the clip in position. This nail passes through a metal spacer 46.

A framing member 35 may be used to close the space between footing form F and wall form P when there is likelihood of concrete overflowing the footing form. Framing member 35 need not be nailed or supported in any way other than acting as a spacer between panel P and flange 11. Nails 50 may be driven through framing member 35 directly into footing form F in intervals between the clips C to hold all elements of the form securely and eliminate the need for nails through holes 16.

Thus FIG. 9 illustrates alternative forms of construction. SPacers 46 may be used at both ends of clip C framing members 35 may be used at both ends, or the two may be used in combination, as shown.

Having now described my invention and in what manner the same may be used, what I claim as new and desire to protect by Letters Patent is:

1. A concrete form clip comprising a metal bar having upturned end flanges perpendicular to an intermediate base portion, and a pair of inclined tongues directed outwardly and upwardly from said base portion toward said end flanges, each tongue having a free end elevated above said base portion and opposed to one of said end flanges at a distance therefrom to receive a form panel in the space between said flange and the end of the tongue, said tongues providing sloping ramp surfaces for sliding movement of the panels on the tongues outward from the middle part of said base portion into said spaces between said end flanges and the ends of the tongues.

2. A clip as defined in claim 1, each tongue forming an inclined strut to maintain a near perpendicular angular relationship between said panel and said base portion of the clip whereby a bottom clip on a bottom edge of a panel will hold the panel upright, and whereby an inverted top clip on a top edge of an upright panel will be held in outstanding position from the panel.

3. A clip as defined in claim 1 wherein said tongues are struck out from said base portion leaving holes between said flanges and the end portions of the tongues which are connected to said base portion of the clip.

4. A clip as defined in claim 3, said holes acting as receivers for the tops of stakes or posts inserted in said holes and said tongues covering said holes and acting as stops for the top ends of said stakes or posts.

5. A clip as defined in claim 1 supporting a pair of wall form panels, means supporting said clips and wall form panels in elevated position above the ground level, and a pair of footing form panels at a distance on opposite sides of said wall form panels, for pouring a monolithic wall and footinlg.

6. A clip as defined m c arm I mounted at its ends on a pair of footing form panels, said first form panels being wall form panels supported on said clip in positions inward from said footing form panels, and a pair of spacers on said clip between said end flanges and said wall form panels, for pouring a monolithic wall and footing.

7. The invention defined in claim 6, said spacers closing the spaces between said footing form panels and said wall form panels to prevent concrete overflowing said footing form panels.

8. A form as defined in claim 5, said supporting means comprising stakes or posts.

9. A clip as defined in Claim 1 supporting a pair of wall form panels, and a pair of footing form panels at a distance on opposite sides of said wall form panels supporting said clips and wall form panels in elevated position above the ground level.

Claims (9)

1. A concrete form clip comprising a metal bar having upturned end flanges perpendicular to an intermediate base portion, and a pair of inclined tongues directed outwardly and upwardly from said base portion toward said end flanges, each tongue having a free end elevated above said base portion and opposed to one of said end flanges at a distance therefrom to receive a form panel in the space between said flange and the end of the tongue, said tongues providing sloping ramp surfaces for sliding movement of the panels on the tongues outward from the middle part of said base portion into said spaces between said end flanges and the ends of the tongues.
2. A clip as defined in claim 1, each tongue forming an inclined strut to maintain a near perpendicular angular relationship between said panel and said base portion of the clip whereby a bottom clip on a bottom edge of a panel will hold the panel upright, and whereby an inverted top clip on a top edge of an upright panel will be held in outstanding position from the panel.
3. A clip as defined in claim 1 wherein said tongues are struck out from said base portion leaving holes between said flanges and the end portions of the tongues which are connected to said base portion of the clip.
4. A clip as defined in claim 3, said holes acting as receivers for the tops of stakes or posts inserted in said holes and said tongues covering said holes and acting as stops for the top ends of said stakes or posts.
5. A clip as defined in claim 1 supporting a pair of wall form panels, means supporting said clips and wall form panels in elevated position above the ground level, and a pair of footing form panels at a distance on opposite sides of said wall form panels, for pouring a monolithic wall and footing.
6. A clip as defined in claim 1 mounted at its ends on a pair of footing form panels, said first form panels being wall form panels supported on said clip in positions inward from said footing form panels, and a pair of spacers on said clip between said end flanges and said wall form panels, for pouring a monolithic wall and footing.
7. The invention defined in claim 6, said spacers closing the spaces between said footing form panels and said wall form panels to prevent concrete overflowing said footing form panels.
8. A form as defined in claim 5, said supporting means comprising stakes or posts.
9. A clip as defined in Claim 1 supporting a pair of wall form panels, and a pair of footing form panels at a distance on opposite sides of said wall form panels supporting said clips and wall form panels in elevated position above the ground level.
US3722849D 1971-11-05 1971-11-05 Concrete form clip Expired - Lifetime US3722849A (en)

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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042205A (en) * 1975-12-08 1977-08-16 Flavel Deloyd Herrell Mold element for horizontally forming panels
US4186160A (en) * 1977-01-19 1980-01-29 Landreth George H Method and apparatus for forming building foundations
US4257571A (en) * 1978-04-10 1981-03-24 Charles E. Cates Foundation clip assembly
EP0039384A2 (en) * 1980-05-05 1981-11-11 Reinhold Beck Permanent shuttering for ring beams, floor edges and/or lintels
US5207931A (en) * 1992-02-12 1993-05-04 Porter Walter W Brace for concrete form
US6332599B1 (en) 1999-08-30 2001-12-25 James R. Spartz Footing forms for concrete monolith construction
US6457913B1 (en) * 1997-06-23 2002-10-01 Dave Garten Foundation forming tool
EP1304429A1 (en) * 2001-10-17 2003-04-23 Ernst Stocker Concrete shuttering with side bracing
US20030074857A1 (en) * 2000-11-27 2003-04-24 Clapp George W. System support assembly
US6663317B1 (en) 2002-07-08 2003-12-16 Abt, Inc. Drainage channel
US20040187413A1 (en) * 2001-07-17 2004-09-30 Errol Campbell Formwork girt
US20050126098A1 (en) * 2003-12-15 2005-06-16 Walters Russell D. Panel system for forming poured concrete walls
US6926245B2 (en) 2002-10-29 2005-08-09 Abt, Inc. Mounting bracket assembly for connecting frame members of a trench-forming assembly and associated method of fabricating frame members
US20050241264A1 (en) * 2004-04-23 2005-11-03 Rocchino Albano Form frame for concrete footings
US6990774B2 (en) * 2000-11-27 2006-01-31 Clapp George W System support assembly
US20060180732A1 (en) * 2005-02-02 2006-08-17 Lawrence Mark A Cardboard concrete forming system
US20060185293A1 (en) * 2005-01-18 2006-08-24 Metcalf Robert W Wall form support apparatus and method
US20060255234A1 (en) * 2005-05-13 2006-11-16 Kenneth Thigpen Self-measuring reusable and durable bridges or spacers for convection to the top concrete forms and related methods
US20060260239A1 (en) * 2005-04-15 2006-11-23 Boese Jason D Concrete form brace
US20080315065A1 (en) * 2007-06-22 2008-12-25 Hanson Troy A Bracket assembly for facilitating the installation of a concrete wall on a concrete footing and a method of forming the wall
US20090241463A1 (en) * 2008-03-28 2009-10-01 Meyer Donald L Fastener element and system for curing concrete
US20090249725A1 (en) * 2008-04-03 2009-10-08 Mcdonagh Greg Wall forming system and method thereof
US20100064615A1 (en) * 2005-04-15 2010-03-18 Boese Jason D Concrete Form Brace
US7866097B1 (en) 2003-09-27 2011-01-11 Charles S Moyher Radon venting concrete forms
US20110131911A1 (en) * 2008-04-03 2011-06-09 Mcdonagh Gregory M Wall forming system and method thereof
US20130112847A1 (en) * 2010-06-29 2013-05-09 Antonio Pantano Sill or Hob Moulding System
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US20180127992A1 (en) * 2016-11-09 2018-05-10 Terry S. Hartman Adjustable spreader cleat
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Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042205A (en) * 1975-12-08 1977-08-16 Flavel Deloyd Herrell Mold element for horizontally forming panels
US4186160A (en) * 1977-01-19 1980-01-29 Landreth George H Method and apparatus for forming building foundations
US4257571A (en) * 1978-04-10 1981-03-24 Charles E. Cates Foundation clip assembly
EP0039384A2 (en) * 1980-05-05 1981-11-11 Reinhold Beck Permanent shuttering for ring beams, floor edges and/or lintels
EP0039384A3 (en) * 1980-05-05 1981-12-30 Reinhold Beck Permanent shuttering for ring beams, floor edges and/or lintels
US5207931A (en) * 1992-02-12 1993-05-04 Porter Walter W Brace for concrete form
US6457913B1 (en) * 1997-06-23 2002-10-01 Dave Garten Foundation forming tool
US6332599B1 (en) 1999-08-30 2001-12-25 James R. Spartz Footing forms for concrete monolith construction
US7000358B2 (en) * 2000-11-27 2006-02-21 George Clapp System support assembly
US20030074857A1 (en) * 2000-11-27 2003-04-24 Clapp George W. System support assembly
US6990774B2 (en) * 2000-11-27 2006-01-31 Clapp George W System support assembly
US20040187413A1 (en) * 2001-07-17 2004-09-30 Errol Campbell Formwork girt
EP1304429A1 (en) * 2001-10-17 2003-04-23 Ernst Stocker Concrete shuttering with side bracing
US6663317B1 (en) 2002-07-08 2003-12-16 Abt, Inc. Drainage channel
US7703502B2 (en) 2002-10-29 2010-04-27 Abt, Inc. Method of fabricating a longitudinal frame member of a trench-forming assembly
US20050238436A1 (en) * 2002-10-29 2005-10-27 Abt, Inc. Method of fabricating a longitudinal frame member of a trench-forming assembly
US20050238435A1 (en) * 2002-10-29 2005-10-27 Abt, Inc. Assembly and method of forming a trench of a predetermined shape
US6926245B2 (en) 2002-10-29 2005-08-09 Abt, Inc. Mounting bracket assembly for connecting frame members of a trench-forming assembly and associated method of fabricating frame members
US7172368B2 (en) 2002-10-29 2007-02-06 Abt, Inc. Assembly and method of forming a trench of a predetermined shape
US7866097B1 (en) 2003-09-27 2011-01-11 Charles S Moyher Radon venting concrete forms
US20050126098A1 (en) * 2003-12-15 2005-06-16 Walters Russell D. Panel system for forming poured concrete walls
US7255319B2 (en) 2004-04-23 2007-08-14 Rocchino Albano Form frame for concrete footings having means to prevent relative movement between the form boards and the ground surface
US20050241264A1 (en) * 2004-04-23 2005-11-03 Rocchino Albano Form frame for concrete footings
US20060185293A1 (en) * 2005-01-18 2006-08-24 Metcalf Robert W Wall form support apparatus and method
US7775499B2 (en) * 2005-01-18 2010-08-17 Metcalf Robert W Foundation footing form and wall form support apparatus
US20060180732A1 (en) * 2005-02-02 2006-08-17 Lawrence Mark A Cardboard concrete forming system
US20130104482A1 (en) * 2005-04-15 2013-05-02 Step Ahead Tools Llc Concrete Form Brace
US8348225B2 (en) * 2005-04-15 2013-01-08 Step Ahead Tools, LLC Concrete form brace having rebar securing mechanism
US20120260596A1 (en) * 2005-04-15 2012-10-18 Boese Jason D Concrete Form Brace
US20100064615A1 (en) * 2005-04-15 2010-03-18 Boese Jason D Concrete Form Brace
US8646746B2 (en) * 2005-04-15 2014-02-11 Step Ahead Tools Llc Concrete form brace having article securing mechanism
US8231100B2 (en) 2005-04-15 2012-07-31 Step Ahead Tools Llc Concrete form brace having article securing mechanism
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