Apparatus for repairing a hole in a structural wall of composite material
US4916880A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Feb 18, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hole (12) in a panel (10) of composite material is cut by a router or the like to dress it into a rounded hole (12'). A cavity is routed or otherwise formed in the panel (10) to extend across the dressed hole (12') in the direction of maximum tension loads in the panel (10). An insert (16) is secured in the cavity (18). The insert (16) and the cavity (18) have matching plan forms and each has a relatively narrow central portion and enlarged end portions (42, 44). The end portions (42, 44) of the insert interlock with end portions of the cavity (18) such that tension loads will be carried by the insert (16) from a region of the wall (10) on one side of the hole (12') across the hole (12') to a region of the wall (10) on the opposite side of the hole (12').
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.