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Lift assembly for a spa cover

DC
  • US 10,662,665 B2
  • Filed: 03/12/2019
  • Issued: 05/26/2020
  • Est. Priority Date: 10/26/2018
  • Status: Active Grant
First Claim
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1. A lift assembly for assisting lifting a spa cover between a cover closed position and a cover open position, the lift assembly comprising:

  • a lever arm mounting portion connected to a spring mounting portion;

    a lever arm extending from a lever arm proximal end portion to a lever arm distal end portion,the lever arm proximal end portion having a pivoting connection to the lever arm mounting portion, the pivoting connection having a lever arm rotation axis, andthe lever arm being rotatable relative to the lever arm mounting portion and the spring mounting portion about the lever arm rotation axis between (i) a cover closed position, and (ii) a cover open position;

    a spa cover engaging member connected to the lever arm distal end portion; and

    a pneumatic spring comprising a pneumatic cylinder and a piston rod,the pneumatic spring extending from a pneumatic spring proximal end portion to a pneumatic spring distal end portion,the pneumatic spring proximal end portion having a pivoting connection to the spring mounting portion,the pneumatic spring distal end portion having a pivoting connection to the lever arm, andthe pneumatic spring exerting an extensive force upon the lever arm both when the lever arm is in the cover closed position and when the lever arm is in the cover open position,the extensive force urging the lever arm towards the cover open position when the lever arm is in the cover closed position, andthe extensive force urging the lever arm towards the cover closed position when the lever arm is in the cover open position,wherein;

    the lift assembly further comprises a spa sidewall mounting bracket,the lever arm mounting portion and the spring mounting portion are laterally movable relative to the spa sidewall mounting bracket between at least two lateral positions, andthe lever arm mounting portion and the spring mounting portion are selectively rigidly connectable to the spa sidewall mounting bracket at each of the lateral positions.

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