Patent ID: 11970253
Assignee: GREAT LAKES LIFT, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. A boat lift assembly, comprising:
a first base member having a central beam portion, a first sloped beam portion, and a second sloped beam portion that define a flat vertical outer surface that extends an entire longitudinal length of the first base member; the central beam portion of the first base member being coupled to and between the first sloped beam portion and the second sloped beam portion of the first base member; the first sloped beam portion of the first base member being tilted downwardly with respect to the central beam portion of the first base member; the second sloped beam portion of the first base member being tilted downwardly with respect to the central beam portion of the first base member;
a second base member having a central beam portion, a first sloped beam portion, and a second sloped beam portion that define a flat vertical outer surface that extends an entire longitudinal length of the second base member; the flat vertical outer surface of the second base member extending parallel to and facing the flat vertical outer surface of the first base member, the central beam portion of the second base member being coupled to and between the first sloped beam portion and the second sloped beam portion of the second base member; the first sloped beam portion of the second base member being tilted downwardly with respect to the central beam portion of the second base member; the second sloped beam portion of the second base member being tilted downwardly with respect to the central beam portion of the second base member;
a first v-shaped roller tube being coupled to and between a portion of the flat vertical outer surface defined by the first sloped beam portion of the first base member and a portion of the flat vertical outer surface defined by the first sloped beam portion of the second base member;
first and second rollers being rotatably disposed on the first v-shaped roller tube;
a second v-shaped roller tube being coupled to and between a portion of the flat vertical outer surface defined by the central beam portion of the first base member and a portion of the flat vertical outer surface defined by the central beam portion of the second base member;
third and fourth rollers being rotatably disposed on the second v-shaped roller tube;
a third v-shaped roller tube being coupled to and between a portion of the flat vertical outer surface defined by the second sloped beam portion of the first base member and a portion of the flat vertical outer surface defined by the second sloped beam portion of the second base member; and
fifth and sixth rollers being rotatably disposed on the third v-shaped roller tube.