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US 4,763,593 AGranted
Small boat dry dock
OwnerGeorge A. Laskoinventor
Life of this patent
Estimating the term…
Abstract
A mechanical device for lifting, storing and launching small boats in and out of the water along side conventional dry docks.
Claims7
A device for lifting, storing and launching small boats into and out of the water alongside a conventional dock or pier comprising:
- A base member suitable for being secured to a conventional dry dock;
- tiltable inverted U-shaped lever means carrying an adjustable L-shaped davit means on each leg of said lever means for supporting a boat pivotally mounted on said base member, and an integrated carrier member operatively connected to the lever means and the davit means whereby force on the lever means will cuse a boat supported by the davit means to be lifted from the water and be retained on its side in a vertical position out of the water above and at the edge of the dock.
A base member suitable for being secured to a conventional dry dock;
- tiltable davit means for supporting a boat pivotally mounted thereon;
- a lever means also pivotally mounted on the base member;
- an integrated carrier member operatively connected to the lever means and the davit means whereby force on the lever means will cause a boat supported by the davit means to be lifted from the water and be retained on its side at the edge of the dock;
- a latching means on said base member is engagable with the integrated carrier member whereby the lever means may be returned to a vertical position while the davit means remains in a fixed position out of the water;
- a harness means connected to the davit means and to the carrier means and to the lever means to help secure the boat on the davit means;
- and a control means on said lever means is provided for releasing the harness at a variable rate of speed whereby the davit means, with said boat, may be returned to the water as fast as desired.
3 more elements
Dependencies are inferred from the claim text.