Apparatus for injecting resin
US5092376A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1990 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Dec 24, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G23/0211
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided by this invention an apparatus for injecting resin which provides a sealed injection position for uniform injection pressure on the resin and allows the depth of the injection needle to the controlled so that even minute delaminations, cracks, and voids in composite structures may be filled. The filling resin is contained in a syringe which is held in an injector frame. The syringe's needle protrudes from the nosepiece which is threadably engaged in the injector frame so that by further rotation of the nosepiece the depth of injection may be altered. Air lines and inlet ports are provided to urge the plunger of the syringe forward so as to eject resin into the composite structure, as well as to provide an improved seal about the injection position at the surface of the composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.