Abstract: An inflatable boat possessing at least two inflatable chambers (1) and a device (2) for distributing gas under pressure, the device comprising: a leaktight enclosure (3) possessing a first orifice (5) and at least two second orifices (6) connected to said chambers (1); at least two closure valves (7) associated respectively with the two second orifices (6) and normally urged into a position for closing the respective second orifices (6); and means (9) for simultaneously driving all of the closure valves (7) selectively in the opening direction or in the closing direction; this makes it possible to control simultaneous inflation or deflation of all the inflatable chambers (1).

Abstract: An inflatable boat possessing at least two inflatable chambers (1) and a device (2) for distributing gas under pressure, the device comprising: a leaktight enclosure (3) possessing a first orifice (5) and at least two second orifices (6) connected to said chambers (1); at least two closure valves (7) associated respectively with the two second orifices (6) and normally urged into a position for closing the respective second orifices (6); and means (9) for simultaneously driving all of the closure valves (7) selectively in the opening direction or in the closing direction; this makes it possible to control simultaneous inflation or deflation of all the inflatable chambers (1).

Abstract: Pneumatic boat (1) including two inflatable buoyancy chambers (2) extending at least on either side and kept spaced apart by a rigid bottom and by a rear panel (6), at least one stabilizing flap (15) being secured to the base of the rear panel (6) so as to extend rearwards beyond the latter; the flap (15) is fixed to the base of the rear panel (6) by fixing means (11, 12) capable of allowing the flap to occupy, selectively, a functional position and a nonfunctional position; the flap (15) is dimensioned and shaped such that, in the functional position, it extends, laterally, beyond the lateral edge of the base of the rear panel (6) and such that its lateral edge (16) is engaged under the corresponding inflatable chamber (2) and simply bears freely, vertically upwards, against the latter.

Abstract: A pneumatic boat comprising a generally U-shaped float open towards the rear and made up of at least one pneumatically inflatable tube, the rear ends of which are braced by a rear board, a rigid floor disposed at least transversely inside the float and a hull with a V-shaped cross section formed by a flexible canvas fixed to the float and to the rear board and held taut by a longitudinal inflatable keel inserted between said floor and said canvas; the inflatable keel is formed by an elongate enclosure delimited by two substantially flat and approximately parallel main walls extending longitudinally and approximately perpendicular to the floor, these walls being braced by a plurality of flexible links; and this enclosure is inflated to a relatively high pressure.

Abstract: Inflatable floor (5), in particular for inflatable boats, constituted by at least one closed airtight compartment of a generally very flat shape and inflatable to a relatively high pressure, said chamber comprising two main walls (6) opposite each other formed by at least two respective sheets (7) of at least one relatively flexible and airtight material connected together by a multiplicity of flexible links (8) of approximately equal length, characterised in that one of said main walls (6s) or upper wall has an external face (9) which is constituted so as to be anti-slip (11) at least over most of its surface.