Wall slab and building construction
Patent 5035100 Issued on July 30, 1991. Estimated Expiration Date: 
July 30, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 30, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 791875 1395176 1581574 2075038 2398267 2727382 2737801 2951318 3350757 Extrusion machine for making articles of cement-like material InventorApplicationNo. 223156 filed on 07/22/1988US Classes:52/745.05, Barrier construction52/607, Additional intersecting, transversing passage, or groove52/745.1, Using prefabricated unit52/745.19, Fabrication of member, module, etc.264/138, WITH SEVERING, REMOVING MATERIAL FROM PREFORM MECHANICALLY, OR MECHANICALLY SUBDIVIDING WORKPIECE264/148, Extruding followed by cutting to length264/156, Plurality of holes264/157, Dividing work to form plural articles264/333Inorganic hydraulic settable material shapingExaminersPrimary: Murtagh, John E.Attorney, Agent or FirmForeign Patent References
International ClassB29C 047/00AbstractA concrete slab, and a building construction system employing the concrete slab, in which the slab is formed in a casting or extrusion process to include a plurality of longitudinally extending core passages, and a groove extending transversely across one end face thereof. A plurality of invention slabs are stacked side by side to form a continuous wall structure, a plurality of conventional cored floor slabs are arranged with their one ends supported on the upper ends of the invention wall slabs, and concrete slurry is poured into the interface between the wall slabs and the floor slabs to fill at least some of the vertical core passages in the wall slabs and at least portions of the horizontal core passages in the floor slabs to form a continuous reinforcing concrete frame within the wall and floor. The concrete slabs provide a form for molding the reinforcing concrete frame and also add significantly the overall strength of the wall by providing a rigid concrete bridging structure between the vertical columns and horizontal bond beams of the reinforcing concrete frame.Field of SearchAdditional intersecting, transversing passage, or grooveRemovable corner or internal section Inorganic hydraulic settable material shaping Nonresinous material only (e.g., ceramic, soap, cellulose, glue, etc.) Honeycomb Extruding followed by cutting to length Extruding around moving preform Extruding hollow product With shaping between extruding and cutting steps WITH SEVERING, REMOVING MATERIAL FROM PREFORM MECHANICALLY, OR MECHANICALLY SUBDIVIDING WORKPIECE By punching or drilling Plurality of holes Dividing work to form plural articles | |
