Submarine boat
OwnerJean-Paul Frechetteinventor
Life of this patent
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Abstract
A submarine boat of the engineless type wherein the propulsion and vertical displacement thereof are distinctively obtained by cooperatively changing the longitudinal angle of inclination or pitch attitude and the buoyancy thereof. This submarine boat includes an elongated shell having apertures allowing water in and out thereof, an air-tight cabin, a pair of bellows extending lengthwise longitudinally of the shell and each having an open end communicating with the cabin, hydraulic cylinders extending into the bellows and connected to the other end of the latter respectively, and separate two-way valves connected to the hydraulic cylinders respectively to selectively actuate the latter, thereby producing selective expansion or contraction of the bellows.
Claims6
A submarine boat comprising an elongated apertured shell defining a front end and a rear end, an air-tight cabin located in said elongated shell intermediate said front end and said rear end, a pair of expandible and contractible bellows extending longitudinally of and inside said shell on opposite sides of said cabin respectively, each of said bellows having one end secured endwise to said cabin in communication therein, and each being longitudinally expandible and contractible toward and away from said cabin and said one end, and hydraulic piston means connected to said expandible and contractible bellows and adapted to selectively expand and contract the latter.
Dependencies are inferred from the claim text.