Ships – Ice boats
Reexamination Certificate
2008-12-08
2010-10-19
Olson, Lars A (Department: 3617)
Ships
Ice boats
C114S289000, C114S291000
Reexamination Certificate
active
07814853
ABSTRACT:
The forced air cavity and control system for watercraft provides a source of compressed air against the hull, the compressed air being distributed via a pivotally adjustable air scoop mounted proximate the front of the boat, to which is connected a series of conduits (air passageways) leading downwardly from the housing. The conduits exit at openings in a V-shaped step in the hull of the watercraft to emit high pressure air against the hull to thereby reduce friction caused by hull contact with the water. A hydraulic ram operably connected to the air scoop provides a means of pivotal adjustment. A plurality of ice runners is provided on the bottom of the watercraft to increase stability of control under reduced water friction conditions.
REFERENCES:
patent: 1408178 (1922-02-01), Downing
patent: 2172674 (1939-09-01), Frost
patent: 2364845 (1944-12-01), Glen
patent: 2855885 (1958-10-01), Miller
patent: 3547064 (1970-12-01), Glass
patent: 4231314 (1980-11-01), Peters
patent: 4392445 (1983-07-01), Burg
patent: 4926771 (1990-05-01), Hull
patent: 4993349 (1991-02-01), Solari
patent: 5146863 (1992-09-01), Ford
patent: 5277141 (1994-01-01), Csepregi
patent: 5524568 (1996-06-01), Bobst
patent: 6250246 (2001-06-01), Hubley
patent: 6868798 (2005-03-01), Robinson et al.
patent: 6957620 (2005-10-01), Wheeler
patent: 6981460 (2006-01-01), Wheeler et al.
patent: 7004094 (2006-02-01), Carson
patent: 7004832 (2006-02-01), Thomas
patent: 7311058 (2007-12-01), Brooks et al.
patent: 2002/0014192 (2002-02-01), Takahashi et al.
patent: 2005/0279269 (2005-12-01), Robinson et al.
patent: 2006/0231004 (2006-10-01), Stubblefield et al.
patent: 42 36 114 (1994-04-01), None
patent: 6-87487 (1994-03-01), None
Slippery ships float on thin air, New Scientist Tech, http://technology.newscientist.com/article/mg18925391.600, 6 pages printed from the Internet on Sep. 20, 2008.
Litman Richard C.
Olson Lars A
LandOfFree
Forced air cavity and control system for watercraft does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Forced air cavity and control system for watercraft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forced air cavity and control system for watercraft will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4161796