Vent flow apparatus and method
US6209274A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vent flow apparatus and method for general application in venting and filling air pockets in conduit or duct type apparatuses designed for passage of material therethrough is provided including a hollow vent flow conduit preferably in the form of a tube having an entry opening and a downstream exit opening with both openings being in communication with a duct for flow of material therethrough. The entry opening is in communication with the duct at a first location of greater cross-sectional area of the duct than a second location of communication of the exit opening with the duct. The vent flow conduit has particular applicability for post-tensioning systems for concrete or other suitable structures, particularly post-tensioning systems which include body sections interconnected in series by an intermediate anchor head and which use a transfer means for routing grout between the body sections and around the intermediate anchor head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.