Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Utility Patent
1998-12-21
2001-01-02
Safavi, Michael (Department: 3635)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
C052S293300, C052S309150, C052S309170, C052S426000
Utility Patent
active
06167671
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to prefabricated concrete wall forms. More specifically, the invention includes a pair of parallel panels joined together by a wire webbing, which serves as a mold for a concrete wall.
2. Description of the Related Art
Although several other inventors have proposed various prefabricated molds for concrete walls, no other inventor within the knowledge of the present inventor has proposed such a mold having the combination of strength and light weight provided by the present invention.
U.S. Pat. No. 1,083,289, issued to Arthur J. Mason on Jan. 6, 1914, describes a method of building concrete dock walls. The method includes sinking heavy reinforced concrete wall sections using the weight of the next section to sink the previous section.
U.S. Pat. No. 2,741,342, issued to Nicholas L. Etten on Apr. 10, 1956, describes a wall construction having opposing metal panels mounted on either side of a frame.
U.S. Pat. No. 3,751,867, issued to Melvin E. Layne on Aug. 14, 1973, describes a concrete-reinforced wall having two parallel sheets separated by metal rods, having metal tabs protruding from the sheets to bear against adjoining panels, and filled with concrete.
U.S. Pat. No. 3,884,646, issued to James T. Kenney on May 20, 1975, describes a structural panel and method of fabrication. The panel comprises a pair of parallel sheets, and a pyramidal, skeletal structure therebetween.
U.S. Pat. No. 3,905,171, issued to Don A. Cargill, Paul M. Corp, and Lloyd M. Forster on Sep. 16, 1975, describes a building panel comprising a pair of parallel plywood panels joined by sheet metal truss stampings. The sheet metal stampings have barbs or prongs to penetrate the panels, securing them together.
U.S. Pat. No. 4,669,234, issued to John A. Wilnau on Jun. 2, 1987, describes a prefabricated wall. The wall sections are made from parallel plywood panels connected by hollow cylindrical spacers. Interior panels define a central section for insulation, and an outer section for concrete. Vertical braces are permanently attached to the outside of the plywood panels, and horizontal braces are temporarily attached during concrete pouring and drying.
U.S. Pat. No. 4,706,429, issued to David A. Young on Nov. 17, 1987, describes an insulating concrete wall forming structure. The outer panels are made from expandable polystyrene (a closed cell, rigid, lightweight cellular plastic having good strength and insulating properties). The parallel panels are held in position relative to each other by a wall tie comprising 20% calcium carbonate filled polypropylene, fitting into T-shaped slots. The top and bottom edges have mating male and female connectors, and the side edges have tongue and groove connectors. Concrete is poured between the two sections. Water pipes and electrical conduits can be placed between the panels before pouring concrete, or placed in cuts in the panels and covered with drywall or plaster.
U.S. Pat. No. 4,718,792, issued to Claude C. Louis on Jan. 12, 1988, describes a prefabricated retaining wall for excavations having corresponding male and female elements along the edges for joining with other wall elements.
U.S. Pat. No. 5,040,344, issued to Philippe Durand on Aug. 20, 1991, describes a prefabricated form for a concrete wall. The form comprises expanded polystyrene or polyurethane panels having horizontal stiffeners. The stiffeners of one panel are connected to the stiffeners of the opposing panel. Vertical supports are removably attached to the outside of the panels.
U.S. Pat. No. 5,308,195, issued to Dan J. Hotek on May 3, 1994, describes a partially prefabricated coping for the top of a cement retaining wall. The coping, which includes a mold, is placed on top of the wall. Cement is poured into the mold, completing the coping. Reinforcement bars project from the retaining wall into the mold.
U.S. Pat. No. 5,456,554, issued to Robert K. Barnett, George Hearn, Henrie Henson, and Michael L. McMullen on Oct. 10, 1995, describes a retaining wall having an anchor attached to a horizontally and vertically flexible C-shaped connector.
U.S. Pat. No. 5,459,970, issued to Chin T. Kim on Oct. 24, 1995, describes a concrete structure and method of manufacture. The structure comprises a pair of parallel concrete panels connected by internal dividing mesh panels. The interior is filled with concrete.
U.S. Pat. No. 5,491,947, issued to Sun Y. Kim on Feb. 20, 1996, describes a concrete wall comprising a pair of outer shells, each formed from plastic panels which lock together. The interior is then filled with concrete. A cross web connects the opposing panels at the location of the locking members joining adjacent panels.
U.S. Pat. No. 5,528,876, issued to Sin-Yuan Lu on Jun. 25, 1996, describes a wall structure comprising a plurality of vertical frames with metal nets welded to the frames. Two opposing frames are connected by zigzag bars welded to the vertical members of the frames. The space between the metal nets is filled with concrete.
U.S. Pat. No. 5,558,470, issued to J. Thomas Elmore, Alan Veatch, William C. Elements, Victor Elias, and Longine J. Wojciechowski on Sep. 24, 1996, describes a method of adjustably anchoring traffic barriers and wall facing panels to the soldier beams of a retaining wall. The method uses U-shaped lugs attached to the wall, connected to stirrup bars attached to the soldier beams. The wall comprises panels having mating lips along the edges. Panels are aligned vertically with each other using plastic dowels extending from the top surface of one panel into cones on the bottom surface of another panel. The wall's reinforcement comprises cast-in-place columns, and hoop-shaped reinforcement members extending from the wall into the traffic barrier.
U.S. Pat. No. 5,657,601, issued to Dennis L. Bean, William Newell Brabston, Philip Garcin Malone, Stafford S. Cooper, and Roger H. Jones, Jr., on Aug. 19, 1997, describes a concrete wall having a pair of fiberglass reinforced cement boards, and a corrugated spacer panel therebetween. Rods perpendicular to the outer panels hold the corrugated spacer panel in the proper position. Dowels parallel to the outer walls provide additional rigidity for the spacer panel.
German Pat. No. 1,037,105, published on Aug. 21, 1958, appears to describe a concrete wall having parallel outer panels around the concrete.
Swiss Pat. No. 382,411, published on Sep. 30, 1964, appears to describe a concrete wall having parallel panels on either side of the concrete, and a framework within the concrete.
Great Britain Pat. No. 1,549,859, published on Aug. 8, 1979, describes a mold for making concrete walls. The mold is made from parallel concrete panels connected by perpendicular concrete braces.
None of the above patents describes a pair of parallel panels connected by the wire webbing proposed by the present inventor. The present inventor's wire webbing provides sufficient reinforcement to the parallel panels forming the mold so that thinner panels may be used than with any other known concrete wall mold.
None of the above inventions and patents, taken either singularly or in combination, is seen to describe the instant invention as claimed. Thus a prefabricated concrete wall form system solving the aforementioned problems is desired.
SUMMARY OF THE INVENTION
The invention is a modular, prefabricated concrete wall form. The basic individual wall form comprises a pair of parallel panels connected by a wire webbing made from horizontally oriented, zigzag wires. The wires are held in place by vertical wood members, each wood member having horizontal channels to secure the wires in place. The wall forms will be joined together and to the floor to form a structure, and then filled with concrete. When the concrete dries, the wall form remains as part of the wall. Metal rods extending from the concrete into the floor or foundation provide additional support. A surface finish or covering can then be applied to the outside of the panels as desired.
The parallel panels formin
Litman Richard C.
Safavi Michael
LandOfFree
Prefabricated concrete wall form system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Prefabricated concrete wall form system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prefabricated concrete wall form system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2505857