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:
Dec. 28, 1993
Filed:
Jun. 22, 1992
Carlos De La Fuente, Nanterre, FR;
Freyssinet International et Compagnie, Marseille, FR;
Abstract
This is a device for reinforcing a concrete member (1) in compression, comprising at least one bar (3) housed without adhesion in a channel (2) hollowed out in said member. Each of the two ends of the bar is associated with a device adapted to cause it to bear longitudinally on the concrete of the member. One of these two devices, which is associated with at least one (3.sub.1) of the two ends of the bar (3) is a rigid frame (4) housed in a cavity (5) of the member accessible from the outside. The frame is arranged so as to receive in removable manner a thrust generator (7). One side of this frame having the bar end in question passing through it is arranged so as to interact with a unidirectional element (8) serving successively to cause the end to be pushed back by the thrust generator, and then to lock this end with respect to the frame in the direction corresponding to the return of the end into the frame.