A toy water gun actuation mechanism for controlling opening of a valve with a base, a trigger, a coupling member being configured to be connected to the valve member and further comprising a movably supported blocking member with an abutment that enables to open and close the valve in a given period if the blocking member is in its blocking position and if the coupling member is in the first position, then the abutment is positioned in trajectory of the coupling member defined by a movement of the coupling member from the first position into the second position, whereas if the blocking member is in its non-blocking position, the abutment is located outside the trajectory being defined by the movement of the coupling member. Further a first elastic member is connected to the trigger and to the coupling member, wherein the potential energy being stored by the first elastic member is increased, if the trigger is moved from its released position towards its actuated position while the coupling member is maintained in its first position by the blocking member, and the trigger has a pusher dog configured to move and/or release a movement of the blocking member from the blocking position into its non-blocking position if the trigger is moved from its non-actuated position towards its actuated position.

A toy water gun actuation mechanism for controlling opening of a valve with a base, a trigger, a coupling member being configured to be connected to the valve member and including a movably supported blocking member with an abutment that enables a valve to be opened and closed in a given period if the blocking member is in a blocking position and if the coupling member is in the a first position, the abutment then being positioned in trajectory of the coupling member defined by a movement of the coupling member from the first position into a second. If the blocking member is in its non-blocking position, the abutment is located outside the trajectory. A first elastic member is connected to the trigger and to the coupling member, The trigger has a pusher dog configured to move and/or release a movement of the blocking member into a non-blocking position.

A device responsive to an acceleration pulse event, the device including: a piezoelectric device configured to generate a voltage over a duration responsive to one or more acceleration pulse events; an electrical storage device configured to receive a portion of the generated voltage to accumulate a charge; an energy dissipating device coupled to the electrical storage device and configured to dissipate the accumulated charge following the one or more acceleration pulse events and not to substantially dissipate the accumulated charge during the one or more acceleration pulse events; and a voltage limiting device coupled to the electrical storage device and configured to limit the portion of the generated voltage applied to the electrical storage device to a predetermined limit.

A water intake system for a boat spray gun, including a system utilizing a port through a transom of a boat, the port positioned proximate to the bottom portion of the boat; a spray gun system; and a water intake system, comprising: a first water inlet tube having a proximal end connectable to a pump of the spray gun system and a distal end connectable to a swivel; a second water inlet tube having a proximal end and a distal end, the proximal end connectable to the swivel; a port connector connectable to the distal end of the second water inlet tube, the port connector having external threads threadingly engaging the port of the boat; and a water inlet conduit having a proximal end engageable with the port connector and a distal end positioned under the bottom portion of the boat.

A device responsive to an acceleration pulse event, the device including: a piezoelectric device configured to generate a voltage over a duration responsive to one or more acceleration pulse events; an electrical storage device configured to receive a portion of the generated voltage to accumulate a charge; an energy dissipating device coupled to the electrical storage device and configured to dissipate the accumulated charge following the one or more acceleration pulse events and not to substantially dissipate the accumulated charge during the one or more acceleration pulse events; and a voltage limiting device coupled to the electrical storage device and configured to limit the portion of the generated voltage applied to the electrical storage device to a predetermined limit.

A water intake system for a boat spray gun, including a system utilizing a port through a transom of a boat, the port positioned proximate to the bottom portion of the boat; a spray gun system; and a water intake system, comprising: a first water inlet tube having a proximal end connectable to a pump of the spray gun system and a distal end connectable to a swivel; a second water inlet tube having a proximal end and a distal end, the proximal end connectable to the swivel; a port connector connectable to the distal end of the second water inlet tube, the port connector having external threads threadingly engaging the port of the boat; and a water inlet conduit having a proximal end engageable with the port connector and a distal end positioned under the bottom portion of the boat.