Outside conversion corner for form work

Information

  • Patent Grant
  • 6419204
  • Patent Number
    6,419,204
  • Date Filed
    Wednesday, November 22, 2000
    23 years ago
  • Date Issued
    Tuesday, July 16, 2002
    22 years ago
Abstract
A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner. The conversion corner bracket is attached to the panels by securing members which secure the conversion corner bracket to the vertical support beam of the panels. The conversion corner allows the apparatus to convert standardized dimensioned panels for use with either metric or U.S. customary unit-based construction structures.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates in general to the field of building construction. More particularly, the present invention relates to building construction form work structures. Specifically, a preferred embodiment of the present invention relates to outside conversion corner piece for joining form work panels.




2. Discussion of the Related Art




Historically, builders have used form work panels to form walls and columns. For example when forming a wall, concrete is poured between two opposing panels of form work and over vertically projecting re-bar. After the concrete cures, the panels are removed to leave a free-standing wall. Similarly, when forming a column concrete is poured over inside pairs of opposing panels of form work and vertically projecting re-bar. When the concrete cures, the panels are removed to leave a free-standing column.




Some form work panels are imported from abroad. These panels are often made according to the exporting country's measurement system. For example, it is nearly impossible to use panels imported from Europe on construction projects in the U.S. or other home country. This is because imported panels are typically created to conform with metric units. Metric units do not translate well in the world of U.S. building construction because contractors are typically not as familiar with such measurements and equipment. Moreover, building codes and blueprint specifications are not easily tailored to metric units to meet the builders' needs.




As is known to those skilled in the art, wood slats or other “fillers” must often be used to extend the dimensions of the panels so that they can be used in U.S. construction projects. Others offset or cut the panels to meet their needs for forming walls. After crude modifications such as these are made, these panels can often meet most desired U.S. customary unit-based system measurement specifications.




However, the metric-sized panels are especially problematic when used to form columns on U.S. construction projects. One unsatisfactory previously recognized approach to solving the problem referred to herein involves the use of wood slats or fillers mentioned above. Fillers are generally impractical as they take time to construct and put into place. With the high cost of construction crew labor, this previously recognized solution also has the disadvantage of relatively high cost. Consequently, a preferred solution will be seen by the end-user as being cost effective. A solution is cost effective when it is seen by the end-user as compelling when compared with other potential uses that the end-user could make of limited resources.




Also, the fillers may shift during the concrete pouring or drying process. This may cause safety and/or structural problems. Because of this fact, a number of jurisdictions restrict the use of the aforementioned previously recognized approach because of the aforementioned disadvantages. However, since up until now there has been no suitable alternative, many jurisdictions are generally not enforcing such a prohibition.




What is needed therefore is a device which converts odd-sized imported form work building panels for use in the home country. Further, what is also needed is an inventive outside conversion corner configured and dimensioned such that the panels can be easily joined to fit most U.S. customary unit applications.




The below-referenced U.S. patents, and allowed U.S. applications in which the issue fees have been paid, disclose embodiments that were at least in-part satisfactory for the purposes for which they were intended. The disclosures of all the below-referenced prior United States patents, and applications, in their entireties are hereby expressly incorporated by reference into the present application for purposes including, but not limited to, indicating the background of the present invention and illustrating the state of the art.




U.S. Pat. No. 5,700,106 relates to an easily assembled concrete form including a plurality of elongated wall members manufactured by roll forming and connected together to define an enclosure. Each wall member has a first end and a second end, an inner surface and an outer surface. Attached to the inner surface of the wall member at the first end is a U-shaped key having legs extending beyond the first end of the wall member. Attached to the inner surface of the wall member at the second end is an interlocking bracket having two vertically spaced slots for receiving the legs of the U-shaped key to connect adjacent wall members together. One of the slots is enlarged for also receiving an extending flange from a support bracket to frictionally maintain the U-shaped key and interlocking bracket in a locked relationship.




U.S. Pat. No. 5,397,095 relates to a modular building system for constructing the frame of a structure. Standardized foundation forms, vertical forms, and tie beam forms are attached to each other. The vertical forms are hinged so as to be capable of defining a corner of any angle. Cover plates are selectively inserted into the tie beam forms so as to define a reception recess which corresponds to the size of a roof truss being used. The various forms can be attached to each other with a minimal amount of labor.




U.S. Pat. No. 5,044,601 relates to an outside bay adaptor for a concrete forming structure. The adaptor has a pair of elongated flat plates, each of substantial length. The plates are disposed in an angular V-shaped relation to one another. The plates have a pair of confronting slots. The slots on the plates are transversely aligned with one another. Slotted wedge bolts are extended through the line slots and extend outwardly and in diverging relation to one another and adjacent opposite ends of the plates. A weldment is located at each end of the plates. The weldment connects the slotted wedge bolts which extend through the slots to the plates in a unitary assembly.




U.S. Pat. No. 4,958,800 discloses a locking hinge mechanism for concrete forms. The mechanism includes parallel hinge strips connected together by hinges positioned at intervals along the length of the strips. Each hinge includes a provision for a wedge lock. The wedge lock when fully inserted position the hinge strips at a secure 90° angle. The hinge strips are spaced apart from the juncture of the strips, when arranged at the 90° angle, so that concrete flashings do not clog the hinge. The hinge strips are in turn affixed to side rails of the joining concrete forms to form a 90° angle, such as for a column form arrangement.




U.S. Pat. No. 3,917,216 discloses a quick release fastening device for releasably securing together the outer edges of two pivotally connected right angle sections of a concrete column form. The concrete form is comprised of a series of upstanding rectangular panels, some of which are in a contiguous relationship. Along their adjacent side edges are outwardly extending flange-like members which extend at right angles to each other and have transverse slots therein. The quick release fastening device consists of a T-bolt embodying a plate-like body portion at one end and a reduced longitudinally slotted shank at the other end. The body portion is disposed in the space between the two flange-like members and abuts against one of the flange-like members. The shank portion extends through and beyond a transverse slot in one flange-like member. An additional T-bolt may also be employed.




U.S. Pat. No. 901,209 discloses an improved clip which is composed of sheet metal and made in one piece. It comprises a body portion


1


having two sets or pairs of spaced engaging portions or flanges,


2


and


3


, arranged respectively in planes at right angels to each other. A supplemental flange


6


having an opening


7


is formed on the body


1


at a point centrally between the flanges


3


, a flange


4


. Formed in the body


1


at points near its ends are openings or perforations


8


for reception of screws or other fastening members by means of which the clip may be attached to one of the mold sections or boards.




U.S. Pat. No. 1,109,810 discloses cross bars which are attached to the sides of the molding boards. The opposite members of each pair are drawn together to clamp the molding boards between them, by longitudinal strips, preferably, though not necessarily, in the form of angle irons


4


which extend lengthwise the column and overlie and the ends of the cross bars. Bolts


5


are then employed to clamp the irons together at any appropriate points, preferably, however, near the top and bottom of the mold and at one or more intermediate points according to the dimensions of the mold. The angle irons may be drilled at frequent intervals as represented so that the bolts may be inserted at any point required.




U.S. Pat. No. 1,170,753 discloses a form for concrete columns. The form consists of a series of angle plates having a series of apertures formed in their edges and adapted to be adjustably secured together by bolts located in apertures of adjacent plates. A series of longitudinally extending notched braces are located at intermediate points of the sides of the mold, and a series of transversely extending clamps are located in the notches of the longitudinally extending braces. These embrace the joined plates and have a series of apertures formed therein.




U.S. Pat. No. 1,171,760 discloses the vertical end edges of the panels


2


and


5


along with angles


23


and


24


. These angles are similar to the angles


18


and


19


illustrated in FIG.


1


. Bolted to the flanges of these angels are the angles


25


and


26


, the free wings of which, as indicated

FIG. 3

, are provided with a plurality of horizontal slots


27


. Angle


25


has slots


27


at left hand end of panel


2


in FIG.


1


. The corner panel


7


is provided with a plurality of rows of holes


28


(FIG.


1


). This panel is secured to the angles


25


and


26


by means of stove bolts


29


which extend through the holes in the corner panel and through the slots


27


in the wings of the angles


25


and


26


. This arrangement gives any and all desired adjustments since the slots


27


in the arms or flanges of the angles


25


and


26


lying next the plates


7


give adjustments lying between the holes in the rows


28


.




U.S. Pat. No. 1,374,864 discloses a form which is designed for use in molding a concrete column of rectangular shape in cross section each of the sections will comprise four parts


1


,


2


,


3


and


4


of such proportions that when they are arranged in the manner shown in

FIG. 2

they will overlap each other more or less according to the diameter of the column, each of said parts being of substantially L-shaped in outline. The parts of the base section A are of substantially channel shaped in vertical cross section, as shown in

FIG. 4

, and each of the parts comprises a vertical web


5


provided at its upper and lower edges with an outwardly-projecting portion or vertical flange


7




a.


The parts are adapted to be arranged in telescopic engagement with each other by slipping one end of each part longitudinally into the end of an adjacent part, thus forming a rectangular shaped frame composed of four parts that are interlocked securely with each other.




U.S. Pat. No. 1,468,702 discloses a structure preferably comprised of two elongated rectangular shaped walls A and B. These walls are permanently and integrally joined to each other along their meeting longitudinal edges so as to be disposed in planes at right angels to each other in transverse section. Adjacent the longitudinal edges, opposite the joined edges, walls A and B are, respectively, provided with parallel pairs of ears


5


and


6


. The movable walls C and D are hingedly connected to walls A and B by upper and lower hinge brackets


7


and


8


. The brackets extend from the respective walls, i.e., brackets


7


of wall C are positioned at their lateral ends between ears


6


and pivotally assembled therewith by pins


9


. On the other hand, the lateral ends of brackets


8


are similarly positioned between ears


5


and pivotally assembled therewith by pins


10


.




U.S. Pat. No. 1,861,766 discloses several wall sections to make up a form such as plates A, B, C, etc. be right-angular in cross-section each having the walls


10


and


11


. In

FIG. 12

, it is shown how these right-angular plates overlie one upon the marginal edge of the other so as to be adjustable to vary the width of the wall of the form which they will serve to make.

FIG. 14

shows flanges


12


,


13


formed upon the corner parts of each right-angular plate A, B, C and D respectively, the terminals


10


A of the walls


10


of which plates project beyond the adjacent extreme end of the flange


12


, so these parts are shouldered one against the other. The flanges serve to reinforce the right-angular plates giving them more strength and durability.





FIG. 14

shows how these plates are arranged to provide a rectangular enclosure for building a concrete column or post therein. Since the sheet metal plates will be of inappreciable thickness their overlap will hardly interfere with the flush continuation of each side of the completed column.




In short, a device that converts odd-sized imported form work building panels for use in the home country in a cost-effective manner is of interest to, for example, those in the field of building construction.




SUMMARY AND OBJECTS OF THE INVENTION




By way of summary, the present invention is directed towards a means for using various elements to form a static mold or form work structure. The mold may be used to form a building structure such as a wall corner or a column. The elements include odd-sized molding or form work panels. The means comprises use of a corner bracket for connecting the edges of the panels. The bracket can have a stepped angle bend to form the corner of the mold where the adjacent panels do not abut.




A primary object of the invention is to provide a column or corner forming apparatus which uses a device such as a conversion corner to aid in converting metric sized panels for use in U.S. customary unit-based construction projects. Another object of the invention is to provide a column or corner forming apparatus which uses a device such as a conversion corner to aid in converting U.S. customary unit sized panels for use in metric unit based construction projects. Still another object of the invention is to provide an apparatus that is relatively inexpensive, ruggedized and reliable, thereby decreasing down time and operating costs. Yet another object of the invention is to provide a device that has one or more of the characteristics discussed above but which is relatively simple to manufacture and assemble using a minimum of equipment.




Another object of the invention is to provide a method that can be used to form a concrete member. Another object of the invention is to provide a method that is predictable and reproducible, thereby decreasing variance and operating costs. Another object of the invention is to provide a method that has one or more of the characteristics discussed above but which is which is relatively simple to setup and operate using relatively low skilled workers.




In accordance with one aspect of the invention, these objects are achieved by providing a method of forming concrete members in standardized U.S. customary unit dimensions from a form work panel structure having standardized metric dimensions, the method comprising the steps of: connecting two form work panels with at least one conversion corner bracket to form a first corner; connecting two additional form work panels with at least one conversion corner bracket to form a second corner; configuring the second corner to oppose the first corner; securing the panels in place; erecting the form work panel structure; and pouring a building material in between the first corner and second corner to form a building member.




These, and other, aspects and objects of the present invention will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following description, while indicating preferred embodiments of the present invention, is given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the present invention without departing from the spirit thereof, and the invention includes all such modifications.











BRIEF DESCRIPTION OF THE DRAWINGS




A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which:




FIG


1


. shows a perspective view of one embodiment of the building structure forming apparatus of the current invention;





FIG. 1A

shows a perspective view of another embodiment of the building structure forming apparatus of the current invention;





FIG. 2

shows a top plan view of the apparatus of

FIG. 1

;





FIG. 2A

shows a top plan view of the apparatus of

FIG. 1A

;





FIG. 3

shows one embodiment of a means of securing corners of the apparatus of

FIG. 1

;





FIG. 3A

shows an alternative embodiment of a means of securing corresponding to the apparatus of

FIG. 1A

;





FIG. 3B

shows an alternative embodiment of a means of securing capable of corresponding to the apparatus of

FIG. 1A

;





FIG. 4

shows a perspective view of one embodiment of the conversion corner bracket of the present invention;





FIG. 5

shows a top plan view of the conversion corner bracket of

FIG. 4

;




FIG


5


A shows an alternative top plan view of the conversion corner bracket of

FIG. 5

;





FIG. 6

shows one embodiment of a forming apparatus as typically used in the art;





FIG. 6A

shows another embodiment of a forming apparatus as typically used in the art; and





FIG. 7

shows an embodiment of a corner forming apparatus comprising a means for securing.











DESCRIPTION OF PREFERRED EMBODIMENTS




The present invention and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments described in detail in the following description.




Specific embodiments of the present invention will now be further described by the following, non-limiting examples which will serve to illustrate various features of significance. The examples are intended merely to facilitate an understanding of ways in which the present invention may be practiced and to further enable those of skill in the art to practice the present invention. Accordingly, the examples should not be construed as limiting the scope of the present invention.




Referring to the drawings

FIGS. 1-7

, it can be seen that the present invention is a building structure forming apparatus


5


. The structure forming apparatus is a form work mold which may be used to form columns and walls for construction projects. A typical building material contained by the form work is concrete, although other suitable building materials, such as polyurethane foam, can be used.




The apparatus


5


is formed generally from a plurality of panels


8


which may be constructed and arranged to form a column, a pilaster, a corner of wall, or some other building structure.




Referring to the embodiment shown in

FIG. 1

, the panels


8




a,




8




b,




8




c,


and


8




d


may be used to construct corner pairs or sets. In the embodiment shown, these corner sets may be configured to form a generally square, box-like structure for forming columns, pilasters, or the like. Alternatively, the corner sets may be constructed and arranged to form a wall corner (see FIG.


7


).




Referring again to

FIG. 1

, the panels


8




a,




8




b,




8




c,


and


8




d


are preferably constructed of paneling


9


preferably constructed of plywood. Attached to the paneling


9


is a support structure comprised of outer horizontal support beams


12


and vertical support beams


13


. In one preferred embodiment, inner horizontal support beams


14


are added for additional strength and support (best shown in FIG.


1


). The vertical support beams


13


generally have a plurality of holes


15


throughout. Similarly, the horizontal support beams also have a plurality of holes


16


.




As is known in the art, panels


8


can be joined together by outer corner clamps


18


. The clamps


18


preferably can be adjusted and tightly secured by using securing mechanism


20


. As shown in

FIG. 1

, a preferred mechanism


20


can be easily tightened by construction crew workers.




Referring now to

FIG. 2

, once the clamps


18


are in place, a conversion corner bracket


24


connects the corner sets in the proper configuration to form a concrete column. Once the conversion corner brackets


24


are secured in place, they form a concrete receiving orifice


22


. As shown by the partial cut-away sectional view of

FIG. 2

, as well as in

FIG. 1

, a securing member


28


, such as a bolt, is generally inserted into a hole


15


in the vertical support beam


13


(both shown in

FIG. 1

) and secured on opposing sides by a nut


26


.





FIG. 3

(as well as

FIGS. 1 and 2

described above and

FIGS. 6 and 7

which follow) illustrate one acceptable nut


26


and bolt


28


arrangement. As is illustrated, bolt


28


preferably comprises a bent handle portion. In one preferred embodiment, the handle portion is bent approximately 90°. The bend in the handle facilitates tightening of the nut and bolt arrangement by making it easier for one to grasp and hold. In addition the handle can act as a “stop” or “stopping” mechanism that can work to prevent the nut/bolt arrangement from loosening, and ultimately, becoming unfastened. It is understood that the number and placement of bolts (and their corresponding nuts) will vary to convenience, depending on the particular project requirements.




An alternative securing member embodiment comprising nut


26




a


and bolt


28




a


is illustrated in FIG.


3


A.

FIGS. 1A and 2A

also illustrate this alternative securing member embodiment and are primarily included for this purpose.

FIG. 3B

illustrates yet another securing member embodiment, comprising nut


26




b


and bolt


28




b


which is similar to that of

FIG. 3

, but without the bent handle portion.




Referring to

FIGS. 4 and 5

, the conversion corner bracket


24


has a bracket first leg


30


and a bracket second leg


32


. In the preferred embodiment, the conversion corner bracket


24


is generally W-shaped to maximize strength while reducing weight. The legs


30


,


32


are essentially joined to form a right angle. That is, a first plane of the first leg


30


and a second plane of the second leg


32


are perpendicular to each other, thus forming a 90° angle. An outer corner of the conversion corner bracket


24


is a V-shaped indented outer corner


34


which lies between the first leg


30


and the second leg


32


. Opposite the V-shaped indented corner


34


is a rounded inside corner


36


. Securing members or bolts secure the W-shaped conversion corner bracket


24


by penetrating bore


38


contained therein.




Alternatively, and as shown in

FIG. 5A

, the V-shaped indentation can be replaced with a substantially flat surface


34




a


at 45° to first leg


30


and second leg


32


. This would provide a poured concrete column with a 45° chamfered corner.




Preferably, a plurality of similar bolts


28


secure each conversion corner bracket


24


through numerous bores


38


displaced along the length of the bracket


24


, as best shown in FIG.


4


. Once a bolt


28


is inserted into a bore


38


, each bore


38


of the conversion corner


24


is then properly aligned with holes


15


in the vertical support beam


13


. Nuts


26


are then preferably engaged with each bolt


28


to secure the conversion corner bracket


24


to the panels


8


.




Referring to

FIG. 6

, a typical form work column forming apparatus


5


is shown. In one preferred embodiment, the column forming apparatus


5


has a telescoping supporting tubular steel prop


40


. The prop


40


is constructed of a tubular strut


42


which may consist of two or more telescoping tubes within a tube. Strut base


44


serves to stabilize the prop


40


. A strut connector


46


connects the prop


40


to the vertical support beam


13


of a panel


8


. Once erected, building material, such as concrete, is poured in between the first corner


52


and the second corner


54


of the form work to form building structure


50


.




As shown in

FIG. 6A

, a horizontal stabilizer bar


48


may be connected from the strut base


44


to the base of the form work


7


at a point near the bottom of a vertical support beam


13


.




An important aspect of the inventive conversion corner bracket


24


is it can be properly dimensioned to allow for the use of standardized metric dimensioned panels to be used on U.S. customary unit based construction projects. Conversion corner bracket


24


can be constructed of extruded aluminum. The corner bracket typically will have a milled finish to ensure proper texture and dimensions.




In one preferred embodiment, the first leg


30


of conversion corner bracket


24


is about {fraction (5/16)}″ wide and about 4¾″ long. The V-shaped, indented outer corner


34


is approximately ⅜″ deep along one dimension and ⅜″ deep along the other. The second leg


32


is also about {fraction (5/16)}″ thick and about 4¾″ long. In one preferred embodiment, the extruded aluminum bracket


24


stands about 118.09″ high. The bores


38


are approximately 0.75″ in diameter. The radius of the rounded inside corner


36


is about 1¼″. In another embodiment, the outside conversion corner bracket stands approximately 106.298″ high. In another embodiment, the outside conversion corner stands approximately 5.045″ high.




Table I (set forth below) shows the standardized U.S. customary unit-based column sizes which can be constructed from various metric unit based panels by using one preferred embodiment of the present invention.














TABLE I









Column Size




Panel




Actual Dimension











18 inches




45 cm




18.09 inches






20 inches




50 cm




20.06 inches






22 inches




55 cm




22.03 inches






24 inches




60 cm




23.99 inches






26 inches




65 cm




25.96 inches






28 inches




70 cm




27.93 inches






30 inches




75 cm




29.90 inches






32 inches




80 cm




31.87 inches






34 inches




85 cm




33.84 inches






36 inches




90 cm




35.81 inches











For smaller columns the dimensions are:













12 inches




30 cm




12.186 inches 














In the preferred embodiment illustrated above, the largest column which can be formed is 36 inches×32 inches. The smallest is (formed from 30 centimeters (cm) panels) is 18 inches×14 inches.




As can be expected, it is also possible to use a somewhat differently dimensioned conversion corner bracket


24


so that builders can use Imperial (also known as U.S. customary unit) unit based form work panels


8


to construct metric unit based building structures for metric unit based buildings. For example, a 60 centimeter column may be formed using a standardized 22-inch panel and 1⅝ inch conversion corner.





FIG. 7

shows an embodiment of a corner forming apparatus. The apparatus comprises means for securing such as bolt


28


and nut


26


.




When in use and operation in one preferred embodiment, the following steps are followed: Two form work panels


8




a


and


8




b


are connected with a first conversion corner bracket


24


to form a first corner pair or set


52


. Two additional form work panels


8




c


and


8




d


are connected to each other with a second conversion corner bracket


24


which is similar to the first conversion corner bracket to form a second corner pair or set


54


.




The second corner set


54


is then properly configured to oppose the first corner set


52


to correctly form the intended structure


50


. For example, if a corner of a wall is to be formed, the first corner


52


and the second corner


54


configured to resemble two offset L-shapes. On the other hand, if a column is to be formed, the first corner set


52


and the second corner set


54


are configured in a box shape (see FIG.


1


). Once properly configured, the panels


8




a,




8




b,




8




c,




8




d


are secured in place with a securing mechanism such as a clamp


20


.




The form work panels


8




a,




8




b,




8




c,


and


8




d


are then erected and supported if necessary by tubular steel props


40


. Building material, such as concrete, is then poured between the first corner set


52


and the second corner set


54


to form a structure


50


.




Conveniently, although aluminum is preferred, the conversion corner bracket of the present invention can be made of any material. Nevertheless, for the manufacturing operation, it is moreover an advantage to employ an extrudable, aluminum-like material. Similarly, the panels may be made of any suitable, durable, strong and light-weight material.




Moreover, the individual components need not be formed in the disclosed shapes, or assembled in the disclosed configuration, but could be provided in virtually any shape, and assembled in virtually any configuration. Further, although the panel components and conversion corner are described herein is physically separate modules, it will be manifest that they may be integrated. Furthermore, all the disclosed features of each disclosed embodiment can be combined with, or substituted for, the disclosed features of every other disclosed embodiment except where such features are mutually exclusive.




There may be virtually innumerable uses for the present invention, all of which need not be detailed here. Moreover, all the disclosed embodiments can be practiced without undue experimentation.




Although the best mode contemplated by the inventors of carrying out the present invention is disclosed above, practice of the present invention is not limited thereto. It will be manifest that various additions, modifications and rearrangements of the features of the present invention may be made without deviating from the spirit and scope of the underlying inventive concept.




The terms upper lower, top, bottom and the like in the specification and claims are intended to assist the reader in understanding invention and are not intended as terms of limitation.




It is intended that the appended claims cover all such additions, modifications and rearrangements. Expedient embodiments of the present invention are differentiated by the appended subclaims.



Claims
  • 1. A concrete forming apparatus comprising:form work panels; and at least one conversion corner bracket for connecting the form work panels at right angles, the at least one conversion corner bracket comprising: (a) a first leg in a first plane; (b) a second leg in a second plane which is substantially perpendicular to the first plane; (c) an indented outer corner between the first leg and the second leg; and (d) a rounded inside corner opposing the indented outer corner; wherein the at least one conversion corner bracket is generally W-shaped.
  • 2. The apparatus of claim 1, wherein the conversion corner bracket is constructed of extruded aluminum.
  • 3. The apparatus of claim 1, wherein the form work panel has standardized dimensions in metric units.
  • 4. The apparatus of claim 1, wherein the conversion corner bracket is for converting metric unit dimensioned panels to U.S. customary unit-based construction projects and vice versa.
  • 5. A concrete forming apparatus comprising:form work panels; and at least one conversion corner bracket for connecting the form work panels at right angles, the at least one conversion corner bracket comprising: (a) a first leg in a first plane; (b) a second leg in a second plane which is substantially perpendicular to the first plane; (c) an indented outer corner between the first leg and the second leg; and (d) a rounded inside corner opposing the indented outer corner; wherein the outer corner is indented in a substantially V-shaped fashion.
  • 6. The apparatus of claim 5, wherein the conversion corner bracket is for converting metric unit dimensioned panels to U.S. customary unit-based construction projects and vice versa.
  • 7. A concrete forming apparatus comprising:form work panels; and at least one conversion corner bracket for connecting the form work panels at right angles; wherein the conversion corner bracket is for converting metric unit dimensioned panels to U.S. customary unit-based construction projects and vice versa; andwherein the conversion corner bracket is generally W-shaped.
  • 8. The apparatus of claim 7 further comprising outer corner clamps to join at least two of the panels.
  • 9. The apparatus of claim 8, further comprising an adjustable securing mechanism to adjust the clamps.
  • 10. The apparatus of claim 7, further comprising a telescoping supporting tubular steel prop for stabilizing the panels.
  • 11. The apparatus of claim 10, wherein the prop includes a tubular strut which can comprise at least two telescoping tubes, a strut connector connected to the prop and a strut base to stabilize the prop.
  • 12. The apparatus of claim 11, further comprising a horizontal stabilizer bar that is connected from the strut base to the form work.
  • 13. A building member forming apparatus comprising:standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams; a conversion corner bracket having a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner; and securing members to secure the conversion corner bracket to at least one of the vertical support beams.
  • 14. The apparatus of claim 13, wherein the conversion corner bracket is for converting metric unit dimensioned panels to U.S. customary unit-based construction projects and vice versa.
Parent Case Info

This application claims the benefit of provisional application 60/166,959 filed Nov. 23, 1999.

US Referenced Citations (27)
Number Name Date Kind
340070 Carrico Apr 1886 A
481243 Orr Aug 1892 A
901209 Sullivan Oct 1908 A
1109810 Wilson Sep 1914 A
1170753 Hodges Feb 1916 A
1171760 Venable Feb 1916 A
1235542 Bagby Aug 1917 A
1374864 Rashkovsky Apr 1921 A
1468702 Dunn Sep 1923 A
1552334 Mosher Sep 1925 A
1670338 Butteworth May 1928 A
1861766 Venard Jun 1932 A
1871919 Schubert Aug 1932 A
2017553 Troiel Oct 1935 A
2475890 Hamilton Jul 1949 A
3260493 Beckham Jul 1966 A
3672626 Thorton Jun 1972 A
3917216 Plough Nov 1975 A
4433826 Schimmel Feb 1984 A
4717517 Halberstadt Jan 1988 A
4944664 Allred Jul 1990 A
4958800 Carlson Sep 1990 A
4978099 Carlson Dec 1990 A
5044601 Miller Sep 1991 A
5397095 Jeffrey Mar 1995 A
5616271 Podgurski Apr 1997 A
5700106 Young et al. Dec 1997 A
Foreign Referenced Citations (7)
Number Date Country
214413 May 1956 AU
852147 Jul 1949 DE
2919468 Nov 1980 DE
1017047 Nov 1952 FR
2056538 Mar 1981 GB
2-285148 Nov 1990 JP
3-260264 Nov 1991 JP
Non-Patent Literature Citations (3)
Entry
Brochure—Plettac Profil, No. 10, pp. 1-8, Dec. 1998.
Brochure—Safway The Platform, Dec. 1998, pp. 1-12.
Brochure—Rasto Formwork, Assembly Instructions, Nov. 1996, pp. 1-24.
Provisional Applications (1)
Number Date Country
60/166959 Nov 1999 US