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:
Mar. 11, 1980
Filed:
Dec. 14, 1977
Dyckerhoff & Widmann Aktiengesellschaft, Munich, DE;
Abstract
For use in prestressed concrete structures, an arrangement is provided for interconnecting serially arranged longitudinally extending bundles of prestressing tendons. Each bundle passes through a separate section of the structure with the sections being poured one after the other. The ends of a bundle extending through a first poured section are secured centrally within an anchorage member. The ends of the following bundle in the next section are secured to the same anchorage member in an annular part radially outwardly of the centrally secured ends of the first bundle. From the anchorage member, the tendons in the following bundle converge inwardly to a point spaced from the anchorage member where they are enclosed within a tubular sheathing in a normal close spacing. The end of the sheathing is trumpet shaped, diverging toward the anchorage member. The end of the trumpet shaped section closer to the anchorage member, is spaced from the anchorage member so that a longitudinally extending section of the tendons in the following bundle is directly enclosed by concrete when the second section of the structure is poured.