Three-way finger joint
US4383780A · kind A · utility
7Cited by
5References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 21, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Oct 21, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/447
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A three-way finger joint for joining three structural elements comprising at least five layers of interlocking fingers and slots. The top and bottom finger elements on one member are identical to each other and to the corresponding elements on the other members. The middle layers comprise a fully interlocking arrangement of fingers and slots, in which a long finger on each member mates with corresponding slots on the other two. The long finger may be formed or cut off to be flush with the joint surface. The joint thus formed is strong, rigid and aesthetically pleasing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.