Matches 51 - 100 out of 113 < 1 2 3 >
Match Document Document Title
4977845 Boat propulsion and handling system  
An improved boat construction is disclosed in which a boat, having the typical elongated hull, bow and stern, has a bottom configured as a hydroplane including a transverse step spaced from the bow...
4968275 Stabilizer for a motor boat  
The present invention provides a stabilizer attached to the cavitation plate on the leg of a motor boat motor. Two elongated tubular members are attached by mounting brackets to the motor's...
4961396 Trim adjusting device for jet propulsion boat  
A jet propulsion boat having an improved arrangement for rigidly affixing a trim adjusting plate to the underside rear portion of the boat hull and which permits adjustment of the trim angle of the...
4947781 Attachment for improving the ride of small marine pleasure craft  
Small marine pleasure craft, such as jet skis, which have a tendency to "porpoise" or pitch fore and aft at cruising speeds, are provided at the aft end of the hull thereof with a ride plate and ,...
4909175 Boat with trimmable bottom  
A resilient trim plate which, when mounted in cantilever fashion on the bottom of a boat and when adjusted, provides for trimming of the boat when the boat is underway and moves over the water. The...
4896622 Attitude control apparatus for speedboats  
A mechanism with one foot pedal for controlling the fore-and-aft attitude of a high-speed boat having the usual cavitation or trim plate. When the foot pedal is depressed the cavitation plate is...
4854259 Improved trim-tab control system for power boats  
An improved trim-tab control for boats has for each trim tab a yoke movably secured to a frame, a mechanical link between the yoke and the trim tab such that yoke and trim tab move in unison, a...
4836124 Mounting assembly with trim plate for outboard motors  
A mounting assembly for an outboard motor includes a motor mount having a transom mounting bracket attachable to a boat transom and a motor supporting bracket spaced aft of and pivotally connected...
4832642 Outboard boat propulsion installation  
Two centrifugal pump and paddle type boat propulsion devices are mounted in astern outboard positions on two swingable vanes, respectively, projecting aft of a boat hull, spaced athwartships of the...
4776295 Boat flaps for controlling and steering a boat operating at low speeds  
The present invention is directed to spring biased trolling flaps used in conjunction with a motorized fishing boat for limiting the speed of the boat while trolling and coupled to the steering...
4762079 Trim tab actuator for marine propulsion device  
A trim tab actuator for a marine propulsion device wherein a plurality of watercraft running conditions are sensed and a trim tab is automatically positioned so as to maintain the watercraft in its...
4682560 High force release and reset mechanism for supporting a structure from a boat hull  
Apparatus for pivotally mounting a structure on a boat hull for pivotal movement between a position wherein the structure extends downwardly into the water and a retracted position. The apparatus...
4577580 Trolling attachment for boats  
A trolling attachment for motor boats comprises pivotal trolling flaps for securement to the transom of a boat so that the flaps may be lowered into and raised from the water as required. The flap...
4420741 Trim tab position monitor and display device  
An electronic position monitor (10) and readout device (72, 90) for trim tabs on boats in which the monitor and readout device are connected to the trim tab controls. The device is electronic and...
4323027 Trim tab for power boat  
The inventive trim tab 10 is formed of a single piece of tough, rigid resin providing an integral mounting plate 12 and a lifter 11 extending aft from a bottom region of a power boat transom 15....
4232626 Device for controlling the orientation of a boat in water  
In a boat, trimming flaps are pivotally mounted one on each side at the stern and operated by individual electric motors and screw and nut drives enclosed in housings serving as links between the...
3938458 Adjustable boat hull  
Disclosed herein is a boat including a hull comprising a bottom surface including a panel having leading and trailing edges, together with forward and rearward bottom surface portions adjacent to...
3783817 MECHANICAL TRIM TAB MEANS FOR MARINE CRAFT  
A pair of trim tabs are pivotally connected to the transom of a power boat adjacent to the water line. The angle of the trim tabs is adjusted to desired operating positions by a hand operated lever...
3769927 TRIM TABS FOR BOATS  
Boat stabilizing apparatus having a pair of independently adjustable rigid trim tab plates mounted on the stern on opposite sides of the longitudinal center line of the boat. A pivot rod is...
3763810 HIGH SPEED BOAT WITH PLANING HULL  
A boat capable of cutting through rough waves at high speed with astonishing stability has a hull provided with a flat planing surface which in plan is the shape of a thin wedge or delta. The sides...
3760758 AUTOMATIC TRIM TAB MEANS FOR MARINE CRAFT  
A pair of trim tabs are pivotally connected to the transom of a boat adjacent to the water line. The angle of each trim tabs is adjusted automatically by an adjustable spring loaded linkage. The...
3683840 WATER BORNE AMPHIBIOUS VEHICLE  
A water borne amphibious vehicle having a fuselage generally formed to provide a low air resistant surface and aerodynamic stabilizers, and at least one flotation drive wheel of generally spherical...
3678874 CONVERTIBLE BOAT  
This invention relates to a boat hull provided with improved flap or vane means at the stern portion of the hull for use in converting the hull in an expeditious and simplified fashion from one...
3628485 PLANING BOAT WITH STEPPED HULL  
A planing boat having a step near the stern, with the bottom aft of the step normally out of water. The boat is provided with one or more trim flaps attached along their forward edges to the...
3628484 TRIM TAB MEANS FOR MARINE CRAFT  
A pair of trim tabs are pivotally connected to the transom of a craft adjacent the water line. The angle of the trim tabs is adjusted by a linkage comprising a rigid member connected to a...
3628486 AUTOMATIC TRIM ATTACHMENT FOR POWER BOATS  
A boat having a pair of trim tabs pivotally mounted rearwardly of the transom on transverse axes intermediate the leading and trailing edges of the trim tabs. The trim tabs are operable at slow...
3602178 BOAT PLANING AND BRAKE APPARATUS  
Boat planing and brake apparatus having a fin connectable to a transom of a boat and adapted to be swung between a horizontal planing position and on inclined braking position, the fin having an...
3601078 AUTOMATIC TRIM TAB  
A pair of spaced trim tabs are supported at the bottom of the transom of a boat to extend therebelow when the boat is at rest and when operating at a low speed. Each tab is a like unit element made...
3581696 HEELING COMPENSATING TRIM PLATE ARRANGEMENT FOR MOTOR BOATS  
A heeling preventing trim plate arrangement for motor boats in which a linkage is connected between the steering means of the boat and a pair of trim plates. The parts are constructed so that when...
3568618 TRIM TAB  
A pair of spaced trim tabs are supported at the bottom of the transom of a boat to extend therebelow when the boat is at rest and when operating at a low speed. Each tab is pivotally supported by a...
3565030 ADJUSTABLE STABILIZER FOR BOATS  
A stabilizer device for boats to maintain a boat in a substantially horizontal position during forward movement of the same and to resist tilting, rolling or bobbing movements of the boat due to...
3530816 POWER BOAT STABILIZING APPARATUS  
3520265 CONTROL MEANS FOR STABILIZING WATERCRAFT  
3500784 SURFACE CRAFT  
3491711 BOAT WITH FERRO-CONCRETE HULL  
3456610 BOAT TRIMMER  
3435795 TRIM AND PLANING CONTROL MEANS FOR WATERCRAFT  
3399643 Trim attachment for power boats  
3391667 Motorized boat stabilizing units  
3372663 Boat stabilizing units  
3371642 Trim control device for boats  
3370561 Trim and heeling board device for boats  
3327671 Boat trimming means  
3203015 Apparatus for providing a displacement hull having auxiliary planing surfaces  
3200782 Power boat attachment  
3159131 Boat trim flaps  
3120210 Boat with adjustable longitudinal planing device  
3117547 Boat  
3081727 High speed water surface craft  
3058442 Apparatus for controlling the motion of boats  
Matches 51 - 100 out of 113 < 1 2 3 >