Static structures (e.g. – buildings) – Facers; e.g. – modules – mutually bonded by internal settable... – Laterally related modules; e.g. – back-to-back
Reexamination Certificate
2000-05-26
2001-06-05
Chilcot, Richard (Department: 2167)
Static structures (e.g., buildings)
Facers; e.g., modules, mutually bonded by internal settable...
Laterally related modules; e.g., back-to-back
C052S565000, C052S563000
Reexamination Certificate
active
06240692
ABSTRACT:
FIELD OF THE INVENTION
The present invention is directed to a concrete form assembly of panels which are spaced apart to form walls into which concrete is poured for construction purposes. More particularly, the present invention is directed to means to economically and efficiently assemble and strengthen the forms.
BACKGROUND OF THE INVENTION
It is known that insulated panels may be joined together to form walls which are interconnected with ties so that two parallel walls are formed into which concrete may be poured for construction purposes.
U.S. Pat. No. 4,229,920 to Lount illustrates the general arrangement of studs embedded in modular plastic blocks, the studs having respective inwardly-protruding portions which engage cooperating bridges to retain the blocks in position during the pouring of the concrete U.S. Pat. No. 4,730,422 to Young discloses the wall-ties (bridges) have T-shaped ends that slide into corresponding recesses in the blocks to form the studs. The studs are not integrally molded within the blocks. The furring strips are screwed into the T-shaped ends and the drywall or the like is secured to the furring strips.
Horobin, In U.S. Pat. No. 4,894,969, discloses a pair of removable inserts consisting of an upper insert and a lower insert. These inserts are received into, and supported by, transverse strut members.
Mensen, in U.S. Pat. No. 5,390,459, discloses bridging members which extend entirely through the foam blocks and terminate in end plates, respectively, which abut against the outside surface of the expanded polystyrene blocks or panels.
U.S. Pat. No. 5,566,518 to Martin et al disclose a form tie which engages the sidewalls of the concrete form to maintain the walls in place during pouring and curing of the concrete. Each tie includes laterally-extending brackets positioned at the ends of a web. This web is a flat plate which spans a pair of hangers extending from the strut. At the end of each support strut is a vertical sidewall-support assembly having vertically-extending flanges.
Tremelling, in U.S. Pat. Nos. 5,701,710 and 5,809,728, discloses a tie member and having bearing plates, intermediate stabilizing plates and strips, respectively. The bearing plates are embedded in the plastic foam member, and the intermediate stabilizing plates abut the inner surfaces of the foam members.
Vaughan et al, in U.S. Pat. Nos. 5,709,060 and 5,845,449, disclose specific designs of a form tie which have a lattice of members.
Grutsch, in U.S. Pat. No. 5,735,093, discloses a backing plate adjacent to the outer face of each panel. The backing plate is connected to a channel-shaped “socket” by connectors. The two confronting sockets are connected together by an inside tie having two strips received in the respective sockets.
In U.S. Pat. No. 5,819,489, McKinney discloses a web made of a mesh and disposed between a pair of “elongated members”, respectively. The web allows the concrete to flow therethrough.
This technique has been used commercially All of these patents and commercial products use different ways and structures to maintain spacing between the walls.
There is a need for further improvements to enhance the structural strength of the assembly form, to simplify assembly and to reduce costs.
BRIEF SUMMARY OF THE INVENTION
It is an object of the present invention to provide a concrete form assembly which can be connected rapidly and with a minimum of training and which provides improved strength.
It is a further object to provide a concrete form assembly which is economical to produce and to assemble.
It is another object of the present invention to provide a high degree of flexibility for the architect, mechanical engineer, contractor, developer and/or the building owner; that is, using standardized readily-available components, the degree of required strength may be selected consonant with cost parameters for any particular job.
In accordance with the teaching of the present invention, there is disclosed a concrete form assembly for construction of structures. The assembly has at least a first and a second rectangular insulation panel. Each panel has respectively a top, a bottom, a first side, an opposite second side, an inner face and an outer face. A plurality of studs is provided, each stud being a molded plastic strip being formed from a plurality of adjoining trapezoidal members with gussets. Each stud has a first end and an opposite second end. A plurality of spaced-apart cylinders are formed on each stud between the first end and the second end thereof Each cylinder is connected to the stud by a connector member. Each cylinder has a respective axial hole formed therein. The studs are encased in the respective inner faces of the at least two panels between the tops and the bottoms thereof, wherein the connector members and the cylinders extend outwardly from the respective inner faces of the panels. The studs are parallel to one another and spaced apart by a uniform selected distance. A plurality of bridges is provided, each bridge having a body with a length, a first end and an opposite second end. A collar is formed respectively on the first end and the second end of each bridge. Each collar is a hollow cylinder having a slot formed opposite from the body, wherein a selected number of bridges may be disposed between the first panel and the second panel with selected cylinders on the respective panels being frictionally seated in the collars to connect the inner face of the first panel to the inner face of the second panel. The respective slots in the collars straddle the respective connector members. In this manner, the first panel is connected to the second panel by the plurality of bridges and the panels are spaced apart by a distance determined by the length of the bridge such that concrete may be introduced into the space between the inner faces of the first panel and the second panel.
In further accordance with the teachings of the present invention there is disclosed a concrete form assembly for construction of a structure having at least two rectangular insulation panels, each having a top, a bottom, two opposite sides and an inner face. Means are provided for interlocking a plurality of panels in their respective tops, bottoms and sides to form a first wall and a second opposite wall. A plurality of studs are encased in each panel between the respective tops and bottoms thereof, each stud having a plurality of spaced-apart cylinders formed thereon wherein the respective cylinders extend outwardly from the inner face of each panel. A plurality of bridges are provided, each bridge having opposite ends. A collar is formed on the opposite ends of each bridge. A selected number of bridges are disposed perpendicularly between the first wall and the second wall wherein the respective cylinders are seated in the respective collars to connect and space-apart the inner faces of the at least two panels of the opposite walls such that concrete may be introduced between the at least two panels.
Additionally in accordance with the teachings of the present invention, there is disclosed a concrete form assembly for construction of a structure having at least two rectangular insulation panels. Each panel has an inner face, the respective inner faces being opposed to one another. The inner face of each panel has a plurality of spaced-apart cylinders extending outwardly therefrom, each cylinder having an axial hole formed therein. An inverted U-shaped rod has a base with a desired length and two legs at right angles to the base. One leg is received in the axial hole in a selected cylinder on one of the panels and the other leg is received in the axial hole in a selected cylinder on the opposite panel, thereby separating the panels and providing support to the assembly.
In still further accordance with the teachings of the present invention there is disclosed a concrete form assembly for construction of a surface having a plurality of rectangular insulation panels. Each panel has an inner face, a top and a bottom. Means are provided for interlocking the tops a
Yost Louis L.
Yost William R.
Bloom Leonard
Chilcot Richard
LandOfFree
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