Method of and device for propulsion
US4178128A · kind A · utility
10Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1977 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | May 10, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B31/11
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propulsion device and its method of use, the device having a forward foil and a rearward foil adapted for alternate transverse reciprocal and alternate pivotal movement in opposed direction about parallel axes. The forward and rearward foil axes are perpendicular to the chords of the forward and rearward foils and the rearward foil is positioned to the rear of, and in a nested relationship with, the forward foil. The axes of the forward and rearward foils are positioned a distance of less than one-quarter of the chord length from the leading edge of the forward and rearward foils, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.