Method for injecting repairing agent into concrete construction
US5309692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | May 5, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G23/0211
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An injection plug device for injecting a concrete repairing agent into a concrete construction through an arcuate injection groove formed therein. The plug device includes a base member sealingly placed over an open end of the arcuate injection groove, a plurality of guide posts extending from the base member, an equal plurality of rod members extending through the guide posts, and engageable member selectively engageable with side walls of the arcuate injection groove by resilient deformation. The engageable members are provided at an inner end portion of the guide posts, or an external surface of the inner end portions of the guide posts. The engageable members have a width smaller than a width of the arcuate injection groove prior to their deformation and have another width larger than the width of the arcuate injection groove after their deformation to provide engagement with the side wall of the groove. The injection plug device is used for achieving a method for injecting a concrete repairing agent into the concrete construction. The method includes the steps of forming the arcuate injection groove, placing the base member over the open end of the injection groove in placing …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.