US 12,291,316 B2
Shallow water hydraulic boat lift
William Golden, North Fort Myers, FL (US)
Filed by William Golden, North Fort Myers, FL (US)
Filed on Jan. 19, 2023, as Appl. No. 18/098,902.
Claims priority of provisional application 63/300,783, filed on Jan. 19, 2022.
Prior Publication US 2023/0227134 A1, Jul. 20, 2023
Int. Cl. B63C 3/02 (2006.01); B63C 3/06 (2006.01); B63C 3/12 (2006.01)
CPC B63C 3/06 (2013.01) [B63C 3/12 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A hydraulic boat lift comprising:
a supportive base for mounting to the bottom of a body of water, said base having opposed leading and trailing portions;
a spaced apart pair of leading support posts pivotally connected to said leading portion of said base and a spaced apart pair of trailing support posts pivotably connected to said trailing portion of said base;
a first bunk pivotally connected to and extending between a first one of said leading support posts and a corresponding first one of said trailing support posts, and a second bunk pivotally interconnected to and extending between a second one of said leading support posts and a corresponding second one of said trailing support posts, each said trailing support post including an elongate trailing H-frame component that has a pair of spaced apart longitudinal flanges laterally interconnected by a longitudinal web to define a forwardly faceable first channel and an opposite, rearwardly faceable second channel formed longitudinally in said trailing H-frame component; and
a pair of hydraulic cylinder actuators, each interconnected between said base and a respective one of said trailing support posts; each said hydraulic cylinder actuator including first and second operably interconnected reciprocating parts, said first reciprocating part being pivotally connected to said base and said second reciprocating part being pivotally connected to a respective said trailing H-frame component within said first channel thereof; said hydraulic cylinder actuators being operated to pivotally alternate said leading and trailing support posts selectively between a raised condition for elevating a boat supported on said first and second bunks and a lowered condition wherein said trailing H-frame components are closed against said base and each hydraulic cylinder actuator is received by said first channel of said respective trailing H-frame component and interposed between said respective trailing H-fame component and a respective one of said first and second bunks.