Abstract: Method of manufacturing a bituminous membrane provided with photovoltaic cells, according to which said photovoltaic cells are applied to one face of a reinforcement provided on the surface with an anti-exudation layer and in that next a bituminous mass is applied to the other face of said reinforcement.

Abstract: This invention relates to a process for manufacturing a dense material containing UO2, comprising: a) introducing at least two powders each comprising uranium dioxide UO2 into a vibrating grinder, wherein at least two powders are provided by two different synthesis routes and each powder has a specific surface area close to that of any other uranium-dioxide containing powder introduced into said grinder; b) shaking said powders by means of said vibrating grinder so as to form a particulate material, the grinding intensity being sufficient to break up the agglomerates and the aggregates in the powders without at the same time breaking up the crystallites in the powders, and the grinding energy provided to the powders being such that substantially all of the agglomerates and aggregates are destroyed; c) introducing said particulate material into a mould; d) applying a shaping stress to said particulate material in order to obtain a compacted material; e) carrying out the sintering of said compacted material so

Abstract: A bituminous glue for cold gluing of construction material and comprising an amount of non-polymerized oil, said glue comprises at least 35% by weight of bitumen, said glue further comprising clay and a dispersing agent, said amount of non-polymerized oil forming between 5 and 30% by weight of said glue and being not mixed with polymerized oil.

Abstract: A snowmobile comprises a chassis including a tunnel, an engine disposed on the chassis at a forward end thereof and a seat disposed above the tunnel behind the engine. The seat has an inclined rear end face extending upwardly and rearwardly with respect to the upper surface of the tunnel, a cavity being defined beneath the seat between the inclined rear end face and the upper surface of the tunnel. The cavity is adapted to receive at least a portion of a transportable object therein, such that the transportable object is locatable above the tunnel at least partially beneath the seat.

Abstract: A snowmobile is described having a frame, at least one steerable ski disposed at a forward end of the frame, and an endless drive track disposed beneath a rearward end of the frame to propel the frame. A seat is mounted on the frame, which may accommodate at least one person. A fairing is disposed behind the seat, and a storage compartment is defined interiorly to the fairing. Variations are also described.

Abstract: A snowmobile is propelled by an endless track that is operatively connected to the snowmobile's engine by two drive sprockets. Each drive sprocket includes one set of external teeth and two sets of internal teeth that engage three corresponding sets of track teeth formed on the track. Alignment cleats are mounted on the inside of each of one of the sets of track teeth. During low-load operation, contact between the cleats (and the track teeth on which the cleats are mounted) is minimized or eliminated, which reduces or eliminates noise caused by collisions between the metal sprocket and the metal cleats. During higher load operation, the track deforms such that the set of external sprocket teeth engage the cleats and associated set of track teeth.

Abstract: A snowmobile is propelled by an endless track that is operatively connected to the snowmobile's engine by two drive sprockets. Each drive sprocket includes one set of external teeth and two sets of internal teeth that engage three corresponding sets of track teeth formed on the track. Alignment cleats are mounted on the inside of each of one of the sets of track teeth. During low-load operation, contact between the cleats (and the track teeth on which the cleats are mounted) is minimized or eliminated, which reduces or eliminates noise caused by collisions between the metal sprocket and the metal cleats. During higher load operation, the track deforms such that the set of external sprocket teeth engage the cleats and associated set of track teeth.

Abstract: A snowmobile comprises a chassis including a tunnel, an engine disposed on the chassis at a forward end thereof and a seat disposed above the tunnel behind the engine. The seat has an inclined rear end face extending upwardly and rearwardly with respect to the upper surface of the tunnel, a cavity being defined beneath the seat between the inclined rear end face and the upper surface of the tunnel. The cavity is adapted to receive at least a portion of a transportable object therein, such that the transportable object is locatable above the tunnel at least partially beneath the seat.

Abstract: A snowmobile provided comprises a chassis including a tunnel, an engine disposed on the chassis at a forward end thereof and a seat disposed on the tunnel behind the engine. The tunnel has an upper surface and a portion extending rearwardly beyond the seat. The seat has an inclined rear end face extending upwardly and rearwardly from the upper surface of the tunnel, a cavity being defined beneath the seat between the inclined rear end face and the upper surface of the tunnel. The cavity is adapted to receive at least a portion of a transportable object therein, such that the transportable object is locatable above the tunnel at least partially beneath the seat.

Abstract: A snowmobile provided comprises a chassis including a tunnel, an engine disposed on the chassis at a forward end thereof and a seat disposed on the tunnel behind the engine. The tunnel has an upper surface and a portion extending rearwardly beyond the seat. The seat has an inclined rear end face extending upwardly and rearwardly from the upper surface of the tunnel, a cavity being defined beneath the seat between the inclined rear end face and the upper surface of the tunnel. The cavity is adapted to receive at least a portion of a transportable object therein, such that the transportable object is locatable above the tunnel at least partially beneath the seat.

Abstract: A belt transmission system of a snowmobile includes a cover which has an upper cover portion and a side cover portion. The cover is pivotally mounted to the chassis of the snowmobile so that it can not only be conveniently installed or removed, but can also be pivotally opened to allow for access to the belt transmission system. The cover effectively prevents injury when the hood and side panel of fairings of the snowmobile are open. The cover further includes noise absorption material attached thereto. Thus, noise reduction is improved by better confining the noise produced by engagement of the belt with the pulleys within an inner space, and by partially absorbing the noise energy.

Abstract: A snowmobile includes a chassis having a generally reduced length and a snow flap pivotally attached to the rear portion of the chassis, above the track system. The track system extends rearwardly beyond the chassis, and the snow flap shields the track system above and behind from spraying snow. The snow flap is linked to the track system so that as the track system moves through a range of travel relative to the chassis, the snow flap pivots relative to the chassis with the track system. This configuration prevents damaging contact between the tread and the undersurface of the snow flap and/or the chassis. The reduced length of the chassis decreases the weight of the snowmobile and the polar moment of inertia, thereby improving turning performance. A bumper extends from the snow flap and can be used to lift the rear of the snowmobile more easily.

Abstract: A detachable passenger seat is selectively mountable onto a base frame of a snowmobile having a straddle-type rider seat. The passenger seat includes a cushioned seat portion supported by a seat frame. A forward portion of the passenger seat includes a bottom surface contoured to fit over and be supported by at least a portion of a rearward end of the rider seat when the passenger seat is attached to the snowmobile. Upwardly extending flexible grab handles are mounted to the lateral sides of the seat frame. Upper portions of the flexible grab handles extend higher than at least a portion of an upper surface of a cushioned seat portion of the passenger seat. The flexible grab handles are designed to be rigid enough to provide support to a passenger and flexible enough to allow a passenger to easily dismount the snowmobile.

Abstract: A snowmobile is described having a frame, at least one steerable ski disposed at a forward end of the frame, and an endless drive track disposed beneath a rearward end of the frame to propel the frame. A seat is mounted on the frame, which may accommodate at least one person. A fairing is disposed behind the seat, and a storage compartment is defined interiorly to the fairing. Variations are also described.

Abstract: A snowmobile is propelled by an endless track that is operatively connected to the snowmobile's engine by two drive sprockets. Each drive sprocket includes one set of external teeth and two sets of internal teeth that engage three corresponding sets of track teeth formed on the track. Alignment cleats are mounted on the inside of each of one of the sets of track teeth. During low-load operation, contact between the cleats (and the track teeth on which the cleats are mounted) is minimized or eliminated, which reduces or eliminates noise caused by collisions between the metal sprocket and the metal cleats. During higher load operation, the track deforms such that the set of external sprocket teeth engage the cleats and associated set of track teeth.

Abstract: A fuel tank for a motored vehicle featuring a main body portion and an oblong neck portion coupled to the main body portion. The oblong neck portion extends diagonally upward away from the main body portion. The main body portion is configured and positioned to provide a wave interference portion therein.

Abstract: A circuit for detecting if a load supplied with a high frequency AC power source is asymmetrical. The input voltage and a DC blocking voltage are connected to a differential amplifier circuit, and any difference in voltage is signaled. The load voltage and the DC blocking voltage are each reduced, for example, to 10% and 20%, respectively, while keeping them proportional to their respective full values.