Hydraulic operating device for a cycle or for a motorcycle comprising a float valve

1) A hydraulic operating device for a fluid of a cycle or of a motorcycle hydraulic system comprising a body, a first chamber carved in the body adapted for housing an actuating piston, a second tank-chamber carved in the body and in fluid communication with said first chamber, a floating plug, a sphere, an elastic element, a rear sealing element and a rear plug,

• said second chamber is adapted for housing said floating plug,
• said second chamber is enclosed by the body walls and open outwards through a rear opening of the body,
• said rear opening of the body has dimensions adapted for the insertion of said floating plug,
• said floating plug is slidably mounted inside the second chamber,
• said floating plug comprises an axial through duct in fluid communication with the second chamber,
• said sphere is mounted in rototranslating way inside the axial through duct,
• said rear plug comprises a rear through opening in fluid communication with the axial duct and with the outside,
• said rear plug is mounted with said axial through duct,
• said elastic element is mounted inside said axial through duct,
• said rear sealing element is mounted with the sphere,
• said sphere is adapted to make said elastic element pass from at least one compressed position to at least a more compressed position,
• wherein the compressed position of the elastic element provides that the sphere pushes said rear sealing element to stop the fluid from coming out the axial through duct,
• wherein the more compressed position of the elastic element allows the sphere to roto-translate allowing the fluid to come out the axial through duct.