Elliptical lobed drive system
US5279190A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1993 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Feb 3, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/919
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
There is disclosed a torque transmitting or coupling arrangement for a fastener drive system or the like, wherein the respective externally configured and internally configured components are provided with a series of mating, elliptically curved flutes and lobes. In both the externally and internally configured components, the flutes and lobes are defined by a first series of elliptically curved surfaces which alternate with a second series of elliptically curved surfaces, with the respective surfaces merging smoothly and generally tangentially to define the alternating flutes and lobes on each said component. One of the components, either the externally configured or the internally configured component will preferably have the flutes and lobes thereon generated from ellipses of substantially equal dimension. The other component, of necessity, will have the flutes and lobes generated from ellipses of differing dimensions. It is appreciated of course, that the flutes and lobes on both the internally and externally configured components may be generated from ellipses of unequal dimensions. In addition, in the preferred embodiment, the centers of the various ellipses which define the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.