Automatic boat trim tab control
DC CAFCFirst Claim
1. A boat trim control system that comprises:
- a boat having a hull and an engine for powering said boat,means for selectively applying electrical power to said engine for powering the boat,means movably mounted to said hull for trimming attitude of said boat as said hull is propelled through the water,means carried by said hull and responsive to a boat operator for selectively adjusting position of said trimming means to maintain desired attitude under varying conditions, andmeans coupled to said trimming means and to said engine, and responsive to removal of electrical power from said engine, for automatically moving said trimming means to a predetermined position with respect to said hull upon removal of power at said engine.
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Accused Products
Abstract
A boat trim control system that includes a pair of trim tabs pivotally mounted to the stern of a boat hull, and an engine responsive to application of electrical ignition power for powering the boat through the water. A pair of fluid actuators extend between the hull and the respective trim tabs for selectively and adjustably moving the tabs between fully extended and fully retracted positions. A fluid drive is responsive to a boat operator for selectively adjusting positions of the trim tabs independently of each other to maintain a desired attitude of the boat hull. Electronic control circuitry is responsive to removal of ignition power from the engine for operating the fluid drive and energizing the actuators for a predetermined time duration so as to move boat trim tabs to the fully retracted positions upon removal of ignition power from the engine.
75 Citations
9 Claims
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1. A boat trim control system that comprises:
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a boat having a hull and an engine for powering said boat, means for selectively applying electrical power to said engine for powering the boat, means movably mounted to said hull for trimming attitude of said boat as said hull is propelled through the water, means carried by said hull and responsive to a boat operator for selectively adjusting position of said trimming means to maintain desired attitude under varying conditions, and means coupled to said trimming means and to said engine, and responsive to removal of electrical power from said engine, for automatically moving said trimming means to a predetermined position with respect to said hull upon removal of power at said engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A boat trim control system that comprises:
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a boat having a hull with a stern and an engine, at least one trim tab pivotally mounted to said hull at said stern, an actuator extending between said hull and said tab for selectively moving said tab between fully extended and retracted positions, means including a drive responsive to an operator for selectively adjusting position of said trim tab to obtain a desired attitude of said hull, means for selectively applying electrical ignition power to said engine for powering said boat, and means coupled to said drive and responsive to removal of electrical power from said engine for operating said actuator for a predetermined time duration so as to move said trim tab to said fully retracted position upon removal of ignition power from said engine.
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Specification