Source: http://www.google.com/patents/US5809727?dq=6263352
Timestamp: 2015-01-29 06:33:20
Document Index: 777577813

Matched Legal Cases: ['art. 2', 'art.\n8', 'art. 11', 'art.\n16', 'art. 23', 'art. 26', 'art. 27', 'art 344', 'art 346', 'art 344', 'arts 344', 'arts 344']

Patent US5809727 - Web member for concrete form walls - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe invention provides a building component including first and second high density foam panels each having inner and outer surfaces, top and bottom, and first and second ends, the panels arranged in spaced parallel relationship with their inner surfaces facing each other, and at least two bridging members...http://www.google.com/patents/US5809727?utm_source=gb-gplus-sharePatent US5809727 - Web member for concrete form wallsAdvanced Patent SearchPublication numberUS5809727 APublication typeGrantApplication numberUS 08/772,090Publication dateSep 22, 1998Filing dateDec 20, 1996Priority dateJun 20, 1994Fee statusPaidAlso published asCA2193630A1, CA2193630C, CA2389313A1, CA2389313C, DE69518649D1, EP0766767A1, EP0766767B1, EP0995853A1, EP0995854A1, US5657600, USRE41994, WO1995035421A1Publication number08772090, 772090, US 5809727 A, US 5809727A, US-A-5809727, US5809727 A, US5809727AInventorsJan Hendrik MensenOriginal AssigneeAab Building System, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (29), Non-Patent Citations (4), Referenced by (30), Classifications (15), Legal Events (11) External Links: USPTO, USPTO Assignment, EspacenetWeb member for concrete form wallsUS 5809727 AAbstract The invention provides a building component including first and second high density foam panels each having inner and outer surfaces, top and bottom, and first and second ends, the panels arranged in spaced parallel relationship with their inner surfaces facing each other, and at least two bridging members extending between and through and molded into the panel members. Each bridging member includes a pair of elongated end plates oriented vertically and abutting against the outer surfaces of the panels; a thin narrow strip member joining the mid-areas of the end plates; a series of first narrow bracing members extending from positions adjacent a mid-point of the narrow strip member to positions spaced a short distance from the ends of the end plates; and a series of second narrow bracing members extending from positions on the first bracing members to positions on the strip member intermediate the plates and the mid-point of the strip member.
What I claim as my invention is: 1. A building component comprising:first and second high density foam panels each having inner and outer surfaces, top and bottom, and first and second ends, said panels being of a first height and arranged in spaced parallel relationship with their inner surfaces facing each other defining a space therebetween; at least two bridging members extending between and through and molded into said panels; a first end part integral with and protruding longitudinally from said first ends of said panels, said first end part being of a second height less than said first height and being substantially arcuate in plan, defining a space within said first end part, wherein said space formed by the panels extends uninterrupted within said space formed by the first end part. 2. The component of claim 1 wherein said first end part includes a first portion and further comprising a second end part integral with and protruding longitudinally from the second ends of the panels, said second end part connecting the second ends of the panels and including a second portion for mating with a first portion of another component.
3. The component of claim 2 wherein said first end part protrudes from the bottom of the first ends of the panels and said second end part protrudes from the top of the second ends of the panels.
4. The component of claim 2 wherein said first portion comprises one of a tongue and a groove, and said second portion comprises the other of a tongue and groove whereby when said component is bisected along a transverse vertical plane intermediate said ends, and the resulting bisected components turned end for end, said one of said tongue and groove will mate with said other of said tongue and groove.
5. The component of claim 2 wherein said first portion of said first end part has a semi-circular plan whereby said component can mate with the other component at a range of angles relative to the longitudinal direction of said component.
6. The component of claim 5 wherein said second height is approximately half of said first height and wherein said first portion comprises a semi-circular tongue or groove.
7. The building component of claim 1 further including a gap in said first end part, thereby providing communication between said space within said first end part and the exterior of the component so that the space formed by the panels extends uninterrupted through said first end part.
8. The building component of claim 1 wherein said first end part is substantially semi-circular in plan.
9. The building component of claim 1 wherein said first end part is substantially semi-hexagonal in plan.
10. A pair of building components, each component comprising:first and second high density foam panels each having inner and outer surfaces, top and bottom, and first and second ends, said panels arranged in spaced parallel relationship with their inner surfaces facing each other defining a space therebetween; at least two bridging members extending between and through and molded into said panels; and a first end part integral with and protruding longitudinally from the first ends of the panels, including a first portion having a substantially arcuate plan defining a space within said first end part, said first portions of said first end parts of said components being matable together with said pair of building components disposed at an angle relative to each other, wherein said space formed by said panels extends uninterrupted within said space formed by said first end part. 11. The pair of components of claim 10, wherein each component further comprises a second end part integral with and protruding longitudinally from the second ends of the panels, said second end part connecting the second ends of the panels and including a second portion for mating with a second portion of another component.
12. The pair of components of claim 11, wherein said first end part of one of said pair of components and said second end part of the other of said pair of components protrudes from the bottom of the respective first and second ends of the panels and said first end part of the other of said pair of components and said second end part of said one of said pair of components protrudes from the top of the respective first and second ends of the panels.
13. The pair of components of claim 10, wherein said first portions of said first end parts have a semi-circular plan and whereby said pair of components are matable with each other at a range of angles formed between the longitudinal direction of the components.
14. The pair of components of claim 13 wherein each first end part comprises approximately half the height of said panels and wherein one of said first portions comprises one of a semi-circular tongue and groove and the other of said first portions comprises the other of said semi-circular tongue and groove whereby one of said pair of components is matable at a continuous range of angles with the other component.
15. The pair of components of claim 10 further including a gap in each of said first end parts, thereby providing communication between said space within said first end part and the exterior of the component so that the space formed by the panels extends uninterrupted through the first end part.
16. The pair of components of claim 15 wherein each of said gaps is disposed to communicate with the space formed by said panels of said other building component.
17. The pair of components of claim 15 wherein each of said gaps is defined by a pair of parallel cuts through said first end parts, said parallel cuts being disposed at an angle with respect to the longitudinal direction of the components.
18. The pair of components of claim 10 wherein said first end part is substantially semi-circular in plan.
19. The pair of components of claim 10 wherein said first end part is substantially semi-hexagonal in plan.
20. A joint between two building components of a wall form for forming a continuous corner in a wall, each building component including first and second high density foam panels having inner and outer surfaces, top and bottom, and first and second ends, with the panels being arranged in spaced parallel relationship with their inner surfaces facing each other, defining a space therebetween, at least two bridging members extending between and through and molded into the panels, a first end part integral with and protruding longitudinally from the first ends of the panels and having a height, the first end part having a substantially arcuate plan, defining a space within said first end part, said joint comprising:an angled connection between the first end parts of the components, and a gap in one of said first end parts having a vertical extent equal to the height of the first end parts, thereby providing communication between said space within said one of said first end parts and the space between the panels of the corresponding component so that the space formed by the panels extends uninterrupted through the first end part for receiving pourable wall material. 21. The joint of claim 20 further including a gap in the other of said first end parts, having a vertical extent equal to the vertical extent of said height of the first end parts.
22. A method for assembling a corner of a form wall using a first and second building component, each building component including first and second high density foam panels having inner and outer surfaces, top and bottom, and first and second ends, with the panels being arranged in spaced parallel relationship with their inner surfaces facing each other defining a space therebetween, at least two bridging members extending between and through and molded into the panels, and a first end part integral with and protruding longitudinally from the first ends of the panels, each of the first end parts being substantially arcuate in plan and defining a space therein, said method comprising the steps of:mating the first end part of the first component with the first end part of the second component at a predetermined one of a range of angles; and cutting out a portion of the first end part of the first component thereby providing communication between said space within said first end part and the exterior of the first component so that the space formed by the panels of the first component extends uninterrupted through the first end part. 23. The method of claim 22 further comprising the step of cutting out a portion of the first end part of the second component thereby providing communication between the space within the first end part and the exterior of the second component so that the space formed by the panels of the second component extends uninterrupted through the first end part of the second component.
24. The method of claim 22 wherein the inner surfaces of the first and second panels of the first component are separated from each other by a first distance and said cutting out step comprises:cutting out a portion of the first end part of the first component having a width approximately equal to the first distance. 25. The method of claim 22 wherein said first end has a height and wherein said cutting out step comprises:cutting out a portion of the first end part of the first component approximately equal to the height of the first end part. 26. The method of claim 24 wherein said first end has a height and wherein said cutting out step comprises:cutting out a portion of the first end part of the first component approximately equal to the height of the first end part. 27. The method of claim 22 wherein said cutting out step comprises:selecting the position of said cut out portion so that said space within said first end part of said first component communicates via said cut out portion with said space formed by the panels of said second component. Description
This application is a continuation; of application Ser. No. 08/262,505, filed Jun. 20, 1994 which application is now U.S. Pat. No. 5,657,654.
BACKGROUND OF THE INVENTION In conventional construction in North America concrete walls are normally produced by constructing form walls, pouring concrete into the space between the form walls and, upon the setting of the concrete, removing the form walls. Finishing materials are then added to the concrete walls as required.
PRIOR ART Applicant is aware of Canadian Patent No. 1,209,364, issued in 1986 to Aregger AG Bauunternehmung. The components described in that patent include cross members, the ends of which are disadvantageously completely embedded in the foam blocks.
United States patents of some interest include U.S. Pat. No. 4,698,947, issued Oct. 1987 to McKay and pertaining to a block in which the cross members are again imbedded in the foam blocks but in slots provided for the purpose.
U.S. Pat. No. 4,730,422, issued Mar. 1988 to Young, comprises form walls which again utilize bridging members the ends of which are located in slots imbedded within foam blocks.
U.S. Pat. No. 4,879,855, issued Nov. 1989 to Berrenberg, illustrates a form wall in which the bridging members are constructed from expanded webbed steel having galvanized steel strips at the ends thereof.
U.S. Pat. No. 4,884,382, issued Dec. 1989 to Horobin, again discloses bridging members which fit within preformed slots in foamed block members.
Applicant's own earlier U.S. patent application, Ser. No. 08/041,412, filed 31 Mar. 1993, discloses an improved system utilizing plastic bridging members in a form wall.
BRIEF SUMMARY OF THE INVENTION It has now been discovered that substantial advantages can be obtained where the building component used to build up a concrete form wall comprises bridging members which are engineered to combine an enhanced strengthening and reinforcing grid with a substantial reduction in material. The grid achieves enhanced strength not only from the arrangement of bracing members but also from enlarged openings in the grid allowing improved flow of foam and, subsequently, of concrete.
FIG. 3 is a top plan view of another embodiment of the building component according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The building component 10 comprises first and second foam panels 12 and 14 secured together by at least two bridging members 42.
A further problem which arises in the construction of form walls concerns the difficulty in establishing correct angles where a directional change in a wall of less than 90� is required. If, for example, the angle in a foundation wall is incorrect by a small amount, the entire building above that part of the foundation is affected. Accordingly, the embodiment of FIGS. 11 to 16 has been devised to enable a range of directional changes or corners to be accurately constructed in a form wall, providing continuity in the form wall.
As illustrated in FIG. 13, end part 344 extends from the upper half of ends 326 and 338 of panels 312 and 314; and end part 346 extends from the lower half of ends 328 and 340 of the panels. End part 344 preferably includes in a lower surface 348 thereof a central semi-circular groove 350.
When a change of direction of, say, 30� is required in a wall, the component 310 can be bisected at an appropriate point and turned end to end to form part components 310a and 310b (FIG. 11). The tongue 354 can then be mated with the groove 350 and the units rotated to the required angle. At that point a part of the end parts 344 and 346 will cross the space 356 between the panels. That part of the end parts 344 and 346 can then simply be cut out to allow the concrete core to be installed.
Using the typical dimensions noted above with a panel separation of 61/4 inches (61/4 inches of concrete) the insulating value of the wall is R26. This is a very high rating for wall construction and thus no additional insulation is required. In addition to the energy-saving value of the insulation, the walls have high resistance to sound transmission with a typical sound reduction of 53DBA.
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