Patents by Inventor Roberto Siviero

Roberto Siviero has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coaxial valve-type alternating pump especially for boats such as a rubber dinghy, manually operated or motor-driven
    Patent number: 6234774
    Abstract: Pump (10) especially for a rubber dinghy and the like has a cylinder (11) with a double-acting alternating piston (13) and a small oblong cylinder (15) alongside the first, closed by heads (24) with packings (26), the valves (31) of the cylinder (11) communicating with the environment and the valves (19) of the small cylinder communicating with chambers (60, 61) that form at the ends of the cylinder (11) so that, on operating the piston (13) by an overgear with crank, an electric motor or the propulsor of a rubber dinghy, compressed air is generated and this passing through a centrally situated branch (33) in the cylinder (19), can be supplied to the rubber dinghy.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: May 22, 2001
    Inventor: Roberto Siviero
  • Portable apparatus for using bicycles as a type of watercraft
    Patent number: 5807148
    Abstract: A portable apparatus for using a bicycle not only on land but also as a type of watercraft has two oblong connected inflatable floats, a propulsion unit including a propeller and a clutch unit picking up a motion from a tire of a bicycle rearwheel, a rearjoint device for connection between rear parts of the floats and rear upper and lower forks of the bicycle, and a front joint device for connection a front of the floats with a lower bar of a bicycle frame, a quick-coupling clamp to which the clutch unit is fixed and which is securable to a bar of a saddle of the bicycle frame and connected to the propulsion unit by a flexible shaft so that by turning of pedals and therefore a rear wheel of the bicycle, movement is transferred through the flexible shaft to the propulsion unit, an element for connecting the two floats, a element for securing the bicycle, and the propulsion unit being formed so that the apparatus can be stowed inside shoulder packs and rucksacks for easy transport while riding the bicycle or ca
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: September 15, 1998
    Inventor: Roberto Siviero
  • Land vehicle floatable and steerable in water
    Patent number: 5415574
    Abstract: Land vehicle floatable and steerable in water, having inflatable sectors applied to the front and back frame with articulated tie-rods and supports. The rear wheel of the vehicle is adapted to strike a roller or an equivalent gear connected to a transmission gear provided with at least a shaft equipped with a propeller. The transmission gear is connected to the inflatable sectors by interposition of extension tubes, tie-rods or rigid supports.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: May 16, 1995
    Inventor: Roberto Siviero