A watercraft lift including opposing first and second lift assemblies, a cradle, and at least one cable. Each lift assembly includes a screw having a shaft and a helical thread and an electric motor configured to rotate the screw. The cradle is suspended from the first and second lift assemblies. The first and second lift assemblies are synchronized thereby balancing the cradle. The at least one cable connects the cradle to the first and second lift assemblies. The at least one cable is configured to raise and lower the cradle upon the motor rotating the screw.
A watercraft lift including opposing first and second lift assemblies, a cradle, and at least one cable. Each lift assembly includes a screw having a shaft and a helical thread and an electric motor configured to rotate the screw. The cradle is suspended from the first and second lift assemblies. The first and second lift assemblies are synchronized thereby balancing the cradle. The at least one cable connects the cradle to the first and second lift assemblies. The at least one cable is configured to raise and lower the cradle upon the motor rotating the screw.
A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitudinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitudinal right side beam in a right side plane.
A high-speed watercraft lift for raising and lowering a watercraft relative to a body of water, the lift comprising a cradle configured to support the watercraft, a cable suspending the cradle, a rotatable spindle configured take up the cable, and a submergible rotary motor. The cradle comprises a number of interconnected beams and a number of bunks connected to at least some of the interconnected beams. The cable is liftably linked to at least one of the interconnected beams. The rotatable spindle is configured to coil portions of the cable to raise the cradle and uncoil the portions of the cable to lower the cradle. The submergible rotary motor is configured to rotate the spindle.
A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitudinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitudinal right side beam in a right side plane.
A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitundinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitundinal right side beam in a right side plane.
B63C 3/06 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement vertical du navire, p. ex. par grue
B63C 3/12 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement utilisant des berceaux
B66F 7/08 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés par des leviers pour un mouvement vertical actionnés hydrauliquement ou pneumatiquement
A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitundinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitundinal right side beam in a right side plane.
B63C 3/12 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement utilisant des berceaux
B63C 3/06 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement vertical du navire, p. ex. par grue
B66F 7/06 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés par des leviers pour un mouvement vertical
B66F 7/08 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés par des leviers pour un mouvement vertical actionnés hydrauliquement ou pneumatiquement
E02C 5/00 - Mécanismes élévatoires verticaux pour bateaux
A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitundinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitundinal right side beam in a right side plane.
A watercraft lift with hydraulically actuated arms which self-installs a fitted three-dimensional watercraft cover on a powerboat. A mechanism enables a linear actuator to drive a swing arm up to180 degrees. The upper end of a two part arm articulates mechanically as the arm moves to reduce vertical elevation while operating. A spring-tensioned elongated roller keeps the cover tight and self-rolls the cover on the elongated roller when the actuated arms are pivoted forward. The mechanism can be attached to the guides of most watercraft lifts.
B63C 3/06 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement vertical du navire, p. ex. par grue
B60J 7/08 - Toits amoviblesToits avec panneaux mobiles du type non coulissant, c.-à-d. toits ou panneaux mobiles ou amovibles, p. ex. toit ou capote pouvant être facilement enlevés ou mis en position repliée ou inopérante
A watercraft lift with hydraulically actuated arms which self-installs a fitted three-dimensional watercraft cover on a powerboat. A mechanism enables a linear actuator to drive a swing arm up to 180 degrees. The upper end of a two part arm articulates mechanically as the arm moves to reduce vertical elevation while operating. A spring-tensioned elongated roller keeps the cover tight and self-rolls the cover on the elongated roller when the actuated arms are pivoted forward. The mechanism can be attached to the guides of most watercraft lifts.
A boat lift with hydraulically or mechanically actuated arms which self-installs a fitted three-dimensional boat cover on a powerboat. The control logic of the system allows for cover operation only when the lift is raised. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the boat in ‘cover-on’ position. A slip clutch prevents the torsion spring from being over tightened. The forward position of the roller is adjusted by adjusting the hydraulic cylinder length. The rearward position of the roller is adjusted by limiting the retracted position of the hydraulic cylinder. A non-hydraulic embodiment actuates the cover when the lift is operated.
B63C 3/06 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement vertical du navire, p. ex. par grue
E04F 10/02 - Pare-soleilVélums en matériaux pour dômes non rigides, p. ex. en forte toile
B63C 3/12 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement utilisant des berceaux
B60J 7/08 - Toits amoviblesToits avec panneaux mobiles du type non coulissant, c.-à-d. toits ou panneaux mobiles ou amovibles, p. ex. toit ou capote pouvant être facilement enlevés ou mis en position repliée ou inopérante
E04F 10/06 - Pare-soleilVélums en matériaux pour dômes non rigides, p. ex. en forte toile comportant un store à rouleau avec des moyens pour en maintenir une extrémité écartée du bâtiment
Watercraft covers are often large and awkward to manually handle, making them difficult to install on a watercraft and to store on-board the watercraft. The covers are also often dirty, and unpleasant to handle. The present invention provides a watercraft covering apparatus with pivot arms moved by at least one actuation member to self-install a fitted three-dimensional watercraft cover on a watercraft using a torsion spring in conjunction with a roller to keep the cover tight on the roller when pivot arms supporting the roller are pivoted rearward by the actuation member and self-roll the cover off the roller when the pivot arms supporting the roller are pivoted forward by the actuation member. A slip clutch prevents the torsion spring from being over tightened. The forward position of the roller is adjusted by adjusting the length of the actuation member, typically a retractable member such as a hydraulic cylinder. The rearward position of the roller is adjusted by limiting the retracted position of the actuation member.
A boat lift with hydraulically or mechanically actuated arms which self-installs a fitted three-dimensional boat cover on a powerboat. The control logic of the system allows for cover operation only when the lift is raised. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the boat in ‘cover-on’ position. A slip clutch prevents the torsion spring from being over tightened. The forward position of the roller is adjusted by adjusting the hydraulic cylinder length. The rearward position of the roller is adjusted by limiting the retracted position of the hydraulic cylinder. A non-hydraulic embodiment actuates the cover when the lift is operated.
A boat kft with hydraulically or mechanically actuated arms which self-installs a fitted three-dimensional boat cover on a powerboat. The control logic of the system allows for cover operation only when the lift is raised. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the boat in 'cover-on' position. A slip clutch prevents the torsion spring from being over tightened. The forward position of the roller is adjusted by adjusting the hydraulic cylinder length. The rearward position of the roller is adjusted by limiting the retracted position of the hydraulic cylinder. A non-hydraulic embodiment actuates the cover when the lift is operated.
A boat lift with hydraulically or mechanically actuated arms which self-installs a fitted three-dimensional boat cover on a powerboat. The control logic of the system allows for cover operation only when the lift is raised. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the boat in 'cover-on' position. A slip clutch prevents the torsion spring from being over tightened. The forward position of the roller is adjusted by adjusting the hydraulic cylinder length. The rearward position of the roller is adjusted by limiting the retracted position of the hydraulic cylinder. A non-hydraulic embodiment actuates the cover when the lift is operated.
A free-floating, compact, self-stabilizing, self-monitoring, remote-controlled, shallow-water, solar, high-speed, air displacement watercraft lift constructed of polyethylene tanks, and non-metallic structure. This device provides vertical lifting by inflating 4 or more air tanks at once using a blower for each tank, pushing water out an exit hole on the bottom of each tank. Each tank has an electric valve for filling and another for exhausting air. Pairs of tanks are pivotally connected along the centerline, and pairs of tanks are connected with a union tube inside the axles. A monitoring system fills the air tanks if air leaks. The width of the lift is adjusted by adjusting the center bunk height, or by adding a spacer.
A watercraft lift with hydraulically actuated arms which self-installs a fitted three-dimensional boat or other watercraft cover on a powerboat or other watercraft. Control logic allows for cover operation only when the lift is raised, and has a single control for both the lift and cover system. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the watercraft when in a “cover-on” position.
A watercraft lift with hydraulically actuated arms which self-installs a fitted three-dimensional boat or other watercraft cover on a powerboat or other watercraft. Control logic allows for cover operation only when the lift is raised, and has a single control for both the lift and cover system. A spring-tensioned roller keeps the cover tight and self-rolls the cover on the roller when the actuated arms are pivoted forward. The roller is hidden behind the watercraft when in a "cover-on" position.
A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventing water circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinder is stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber.
A free-floating, compact, self-stabilizing, self-monitoring, remote-controlled, shallow-water, solar, high-speed, air displacement watercraft lift constructed of polyethylene tanks, and non-metallic structure. This device provides vertical lifting by inflating 4 or more air tanks at once using a blower for each tank, pushing water out an exit hole on the bottom of each tank. Each tank has an electric valve for filling and another for exhausting air. Pairs of tanks are pivotally connected along the centerline, and pairs of tanks are connected with a union tube inside the axles. A monitoring system fills the air tanks if air leaks. The width of the lift is adjusted by adjusting the center bunk height, or by adding a spacer.
A free-floating, compact, self-stabilizing, self-monitoring, remote-controlled, shallow-water, solar, high-speed, air displacement watercraft lift constructed of polyethylene tanks, and non-metallic structure. This device provides vertical lifting by inflating 4 or more air tanks at once using a blower for each tank, pushing water out an exit hole on the bottom of each tank. Each tank has an electric valve for filling and another for exhausting air. Pairs of tanks are pivotally connected along the centerline, and pairs of tanks are connected with a union tube inside the axles. A monitoring system fills the air tanks if air leaks. The width of the lift is adjusted by adjusting the center bunk height, or by adding a spacer.
B63C 3/06 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement vertical du navire, p. ex. par grue
B63C 1/06 - Installations de pompage ou de remplissage pour mise en eau ou hors d'eau des docks
B63B 35/42 - Embarcations ou structures flottantes similaires spécialement adaptées à des finalités spécifiques et non prévues ailleurs pour transport d'embarcations à tirant d'eau réglable
31.
HYDRAULIC CYLINDER CONTAMINATION PREVENTION SYSTEM
A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventing water circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinder is stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber.
F16F 9/38 - Couvercles de protection ou de présentation décorative
F16F 9/36 - Joints d'étanchéité particuliers, y compris les joints ou guides pour tiges de piston
F16F 9/32 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement Parties constitutives
32.
HYDRAULIC CYLINDER CONTAMINATION PREVENTION SYSTEM
A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventingwater circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinderis stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber.
F16F 9/32 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement Parties constitutives
F16F 9/36 - Joints d'étanchéité particuliers, y compris les joints ou guides pour tiges de piston
F16F 9/38 - Couvercles de protection ou de présentation décorative
The floating drive-on docking system for a watercraft uses a main floatation portion where the watercraft rests when loaded and a pivoting entry portion for creating a low loading angle between the watercraft and the floating drive-on docking system, resulting in only a small amount of propulsion from the watercraft being required to load onto the docking system. The pivoting entry portion has entry features, either rollers or raised bumps, that remain above the waterline when not engaged by the watercraft to keep the loading surfaces free from marine growth that can harm the hull of a watercraft. Wide side guides on the pivoting entry portion assist in positioning the craft for loading onto the docking system.
B63B 35/40 - Embarcations ou structures flottantes similaires spécialement adaptées à des finalités spécifiques et non prévues ailleurs pour transport d'embarcations
B63C 3/02 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement par mouvement longitudinal du navire
B63C 3/12 - Lancement ou halage des navires, p. ex. par rampes à terreRampes de lancement utilisant des berceaux
34.
Hydraulic cylinder contamination prevention system
A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventing water circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinder is stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber.
