Hinge with leaves which reinforce one another against bending deflection
US4918786A · kind A · utility
18Cited by
14References
4Claims
0Family size
Inventor
Key dates
| Filing date | Nov 8, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Nov 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S16/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hinge having at least three leaves pivotally joined along edges of the leaves and adapted for attachment to two members to be pivotally connected with at least one member secured to a pair of the leaves which are mutally inclined in such a way that each leaf of the pair resists bending of the other leaf of the pair. A present best mode embodiment of the hinge has four leaves and is designed primarily for use on so-called ultralight airplanes as aileron, rudder, and elevator hinges which are immune to fatigue stress failure. Another hinge embodiment is designed for use as a door hinge and has only three leaves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.