Patents Assigned to LP4, LLC
  • Patent number: 11337874
    Abstract: An assistive seating device (10) includes a frame (11) having a base (12) with rear legs (14) coupled to front legs (15) having lifting arms (21). The base also includes a first couplers (25) and second couplers (26). The frame also includes a seat portion (29) coupled to the base for reciprocal movement between a lowered, seating position and a raised, lifting position. Lifting cylinders (40) are pivotally coupled at a top end (41) to the seat portion. Each lifting cylinder also has a lower end (44) receivable within either the first or second tubular coupler. The force of the lifting cylinders upon the pivoting seat portion depends upon the selected coupling location of the lower ends of the lifting cylinders upon the base. The assistive seating device also includes a lock to prevent the seat portion from pivoting from its lowered, seating position to its raised, lifting position.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 24, 2022
    Assignee: LP4, LLC
    Inventors: Olof Hakan Sjogren, Jakob Carl Erik Sjogren