Watercraft lift
AssigneeSunstream Corporation
InventorsKenneth E. Hey, Loern A. Halverson, Dean A. Stanford, Kent B. Van Olst, Marcus Joel Gazda, Julie Walker Hey
Life of this patent
Estimating the term…
Abstract
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.
Claims28
A watercraft lift comprising:
- opposing first and second lift assemblies each including:
- a screw having a shaft and a helical thread;
- and
- an electric motor configured to rotate the screw;
- a cradle suspended from the first and second lift assemblies, the first and second lift assemblies being synchronized thereby balancing the cradle;
- and
- at least one cable connecting the cradle to the first and second lift assemblies, the at least one cable being configured to raise and lower the cradle upon the motor rotating the screw.
A bracket assembly configured to secure a horizontal watercraft lift beam to a piling, the bracket assembly comprising:
- a clip configured to be attached to the watercraft lift beam;
- a central mounting structure, the clip being secured to the central mounting structure;
- and
- a pile mounting bracket configured to be mounted to the piling, the central mounting structure and hence the clip being configured to pivot relative to the pile mounting bracket.
A telescoping bracket for raising a watercraft lift on a plurality of pilings, the telescoping bracket comprising:
- a lower tube configured to be mounted to one of the plurality of pilings;
- and
- an upper tube configured to be attached to the watercraft lift, the upper tube being configured to translate vertically relative to the lower tube.
A watercraft lift comprising:
- a frame including a plurality of vertically-extending legs and a crossbeam connecting at least some of the plurality of vertically-extending legs;
- opposing first and second lift assemblies mounted on the frame, at least one of the first and second lift assemblies including:
- a screw having a shaft and a helical thread;
- and
- an electric motor configured to rotate the screw;
- a cradle supported by the first and second lift assemblies, the first and second lift assemblies being synchronized thereby balancing the cradle;
- and
- at least one cable suspending the cradle from the first and second lift assemblies and extending between the first and second lift assemblies via the crossbeam of the frame, the at least one cable being configured to raise and lower the cradle upon the motor rotating the screw.
A watercraft lift comprising:
- opposing floating dock fingers;
- opposing first and second lift assemblies, each being mounted on one of the opposing floating dock fingers and including:
- a screw having a shaft and a helical thread;
- and
- an electric motor configured to rotate the screw;
- a cradle suspended from the first and second lift assemblies, the first and second lift assemblies being synchronized thereby balancing the cradle;
- and
- at least one cable connecting the cradle to the first and second lift assemblies, the at least one cable being configured to raise and lower the cradle upon the motor rotating the screw.
A watercraft lift comprising:
- a lift assembly including:
- a screw having a shaft and a helical thread;
- and
- an electric motor configured to rotate the screw;
- a vertically-extending track;
- a cradle configured to vertically traverse the vertically-extending track;
- and
- at least one cable connecting the cradle to the lift assembly, the at least one cable being configured to raise and lower the cradle upon the motor rotating the screw.
A watercraft lift comprising:
- a plurality of pilings;
- a dock finger supported on the plurality of pilings;
- a lift assembly mounted to the dock finger and including:
- a lift tube including an internal chamber;
- a screw having a shaft and a helical thread;
- an electric motor configured to rotate the screw;
- and
- a battery powering the electric motor,
- wherein the screw, the electric motor, and the battery are housed in the internal chamber of the lift tube;
- a cradle suspended from the lift assembly;
- and
- at least one cable connecting the cradle to the lift assembly, the at least one cable being configured to raise and lower the cradle upon the motor rotating the screw.
Dependencies are inferred from the claim text.