Injection nozzle for adhesive materials
US4509884A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | May 2, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G23/0211
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A nozzle for injecting adhesive materials into cracks in concrete, mortared joints in brick or stone walls, in timber, or in similar materials, the nozzle having a body with a center channel for conducting the resin from a suitable pump into the cracked surface. The nozzle may be surface mounted or mounted in a drilled hole, and has a proximal end adapted for connection to a conventional coupling and a distal end surrounded by spaced lugs which facilitate insertion of the distal end into a hole and aid in retaining the nozzle therein. The spacing between the lugs and a plurality of grooves in the distal end communicating with the center channel minimize back pressure when surface mounted and resist back pressure when mounted in a hole, and provide an even diffusion of the resin into the void. A collar is normally provided near the distal end for partially or completely sealing the installation and for retaining an adhesive gel or putty cone which further seals the installation. The collar may also serve as an abutment against which a suitable driver can be placed to drive the nozzle into a hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.