초록 ▼

A boat has a seacock operatively attached to the hull and movable between open and closed positions. The seacock is operatively connected to a discharge pump, which in turn is connected to a sewage holding tank. An electrical switch is actuated in response to the position of the seacock, and control

A boat has a seacock operatively attached to the hull and movable between open and closed positions. The seacock is operatively connected to a discharge pump, which in turn is connected to a sewage holding tank. An electrical switch is actuated in response to the position of the seacock, and control circuitry is connected to the seacock electrical switch and the discharge pump to prevent operation of the pump if the seacock is closed (or in any position aside from fully open). An indicator, such as one or more light emitting diodes, is also actuated in response to the seacock electrical switch position, and another indicator, such as one or more light emitting diodes, is connected to the discharge pump and indicates when that pump is operating. The electrical switch is waterproof and meets marine vessel ignition prevention and electromagnetic compatibility requirements, and typically is actuated in response to the position of a manually actuable (e.g. rotatable) handle of the seacock.

대표청구항 ▼

[ What is claimed is:] [1.] A boat comprising:a hull;at least one seacock operatively attached to the hull and movable from a first, open, position allowing passage of liquid therethrough and through said hull therethrough to a second, closed, position precluding the passage of liquid therethrough;a

[ What is claimed is:] [1.] A boat comprising:a hull;at least one seacock operatively attached to the hull and movable from a first, open, position allowing passage of liquid therethrough and through said hull therethrough to a second, closed, position precluding the passage of liquid therethrough;a sewage holding tank;a discharge pump;said sewage tank and discharge pump connected to said seacock so that when said seacock is in said first position thereof, and said pump is activated, said pump pumps sewage from said tank through said seacock;an electrical switch actuated in response to the position of said seacock; andcontrol circuitry connected to said seacock electrical switch and said discharge pump which prevents operation of said discharge pump if said seacock is in said second, closed, position.