Fluid reaction surfaces (i.e. – impellers) – With fluid passage in working member communicating with... – Air and watercraft propellers
Patent
1984-05-04
1986-12-23
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With fluid passage in working member communicating with...
Air and watercraft propellers
416 4, 416 23, 416 91, 416 20R, 415DIG1, B63H 902
Patent
active
046309977
ABSTRACT:
A device for producing a force when in a moving fluid, such as air or water, and a method for using said device. The device may be placed in a fluid moving in a first direction for producing a force in a second direction, which is substantially transverse with respect to the first direction. The device avoids the use of large sail areas needed where the force derived from wind is proportional to said area. The device according to the invention comprises an elongated body having in cross-section a rounded symmetrical profile, which defines an elongated and rounded leading portion whose thickness increases from the front to the rear and a rounded trailing portion whose thickness decreases from the front to the rear, the leading portion being longer than the trailing portion. The device according to the invention is also provided with at least one flap, which projects from the body and which is located on the trailing portion of the profile.
REFERENCES:
patent: Re18122 (1931-07-01), Flettner
patent: 1698819 (1929-01-01), Massey
patent: 2516489 (1950-07-01), Stalker
patent: 2759548 (1956-08-01), Yuan et al.
patent: 3062483 (1962-11-01), Davidson
patent: 3139936 (1964-07-01), Davidson et al.
patent: 3211397 (1965-10-01), Laine et al.
patent: 3326296 (1967-06-01), Hill et al.
patent: 3547377 (1970-12-01), Frey
patent: 3554664 (1971-01-01), Cheeseman et al.
patent: 3588273 (1971-06-01), Kizilos
patent: 3713750 (1973-01-01), Williams
patent: 4366386 (1982-12-01), Hanson
patent: 4398895 (1983-08-01), Asker
patent: 4401284 (1983-08-01), Austin
patent: 4582013 (1986-04-01), Holland
Schlichting-Aerodynamik des Flugveugs, A. Van, Springer Verlag Berlin, pp. 264-267.
Charrier Bertrand
Cousteau Jacques Y.
Malavard Lucien
Fondation Cousteau
Powell Jr. Everette A.
LandOfFree
Apparatus for producing a force when in a moving fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for producing a force when in a moving fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing a force when in a moving fluid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-169652