Concrete dowel placement sleeves
US5216862A · kind A · utility
Inventors
Key dates
| Filing date | Feb 15, 1991 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Feb 15, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/483
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Slip and non-slip dowel placement sleeves are disclosed. The slip dowel placement sleeve generally comprises a tubular dowel receiving sheath having a closed distal end and open proximal end. A connecting means is formed around or inserted into the proximal opening of the sheath to facilitate attachment of the sheath to a concrete form. Smooth sections of dowel rod may then be advanced through holes drilled in the concrete form and into the interior compartment of the sheath. Concrete is poured within the form and the dowel rod remains slidably disposed within the interior of the sheath. Variations of the basic slip dowel placement sleeve of the invention include a tapered "extractable" sleeve and a corrugated "grout tube" for placement of non-slip dowel or rebar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.