Post-tension anchor system
US5072558A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tendon tensioning anchor comprising a base member having a tubular section extending therefrom, a plastic encapsulation in surface-to-surface contact with the exterior of the base member, and a heat shield fastened within the plastic encapsulation adjacent an end of a tubular section extending outwardly from the base member. The plastic encapsulation opens at the end of this tubular section opposite the base member. The plastic encapsulation further comprises a tubular portion formed at the side of the base member opposite the tubular section and extends outwardly perpendicular to the base member. The heat shield is a rigid member having an outer diameter corresponding to the outer diameter of the tubular section. The heat shield has an interior surface formed therein for receiving a portion of a sealing cap. The present invention also includes an extension tubing fitted to the end of the tubular portion of the plastic encapsulation. A seal is fastened within the other end of the extension tubing so as to create a liquid-tight seal with a tendon passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.