Patent ID: 9730848
Date: 2017-08-15
CPC Classifications: A61G

Claim:
1. A lift apparatus for personal use, the apparatus including: a gantry for receiving and lifting a user, the gantry having a gantry sleeve, and a prow guide mounted within the gantry sleeve, the prow guide having an in-guide surface and an out-guide surface; a pillar tube receivable into the gantry sleeve, the pillar tube having a round portion and a square portion, the round portion received within the square portion at a square-to-round transition, and the gantry raise-able and lower-able on the pillar tube; the gantry sleeve slide-able upon the pillar tube; a prow rib formed at the square-to-round transition between the round portion and the square portion of the pillar tube; and the in-guide surface angled to guide rotation of the gantry sleeve on the prow rib on the square-to-round transition of the pillar tube in a first direction of rotation of the gantry about the pillar tube, and the out-guide surface angled to guide rotation of the gantry sleeve on the prow rib on the square-to-round transition of the pillar tube in a second direction of rotation of the gantry about the pillar tube.