The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1978
Filed:
Mar. 14, 1974
Gyorgy Mayer, Pecs, HU;
Janos Gyori, Pecs, HU;
Mihaly Rikker, Pecs, HU;
Antal Banfai, Pecs, HU;
Ervin Eszenyl, Pecs, HU;
Licencia Talalmanyokat Ertekesito Vallalat, Budapest, HU;
Abstract
A process for producing reinforced concrete building units such as concrete floor panels having coffer-like inner holes with smooth upper and lower surfaces, comprises providing a layer of reinforced concrete on the lower edges of a building unit comprised by an upper panel and joining ribs intersecting each other. A reinforcing steel mat is secured to the lower edges of the ribs which is then immersed in a layer of concrete resting on a plate. The assembly is vibrated to consolidate the concrete around the mat and after hardening, the plate is removed, leaving a smooth undersurface on the resulting hollow construction. The panel can be prestressed to a downwardly convex shape, in which case the plate is given a corresponding upwardly concave curvature.