Crow River Industries, Inc.

Lynn O Ringdahl

James B Welte

Jeffrey J Stoen

Gary G Gruber

Timothy W Jenum

An apparatus for moving an object, such as a wheelchair, between an upper position and a lower position. The upper position is typically adjacent to the floor surface of a vehicle while the lower position is typically at ground level. The apparatus preferably includes a platform including at least three pivotally connected sections. The sections are selectively moveable between an unfolded orientation in which the sections are substantially co-planar and a folded orientation in which the sections form a compact configuration. The apparatus also preferably includes a folding assembly for selectively moving the sections of the platform between the folded orientation and the unfolded orientation, a deployment assembly for selectively deploying and stowing the platform and a lift assembly for selectively moving the platform vertically between the upper position and the lower position. The platform includes a control assembly with at least one switch for controlling the movement phases of the platform, where a switch must be activated for each subsequent movement phase.

Collapsible, powered platform for lifting wheelchair

An apparatus for moving an object, such as a wheelchair, between an upper position and a lower position. The upper position is typically adjacent to the floor surface of a vehicle while the lower position is typically at ground level. The apparatus preferably includes a platform including at least three pivotally connected sections. The sections are selectively moveable between an unfolded orientation in which the sections are substantially co-planar and a folded orientation in which the sections form a compact configuration. The apparatus also preferably includes a folding assembly for selectively moving the sections of the platform between the folded orientation and the unfolded orientation, a deployment assembly for selectively deploying and stowing the platform and a lift assembly for selectively moving the platform vertically between the upper position and the lower position.

A wheelchair lifting platform device for raising or lowering of a wheelchair into or out of a vehicle. The invention includes a barrier safety mechanism which is connected to a wheelchair platform. The barrier safety mechanism includes a barrier plate and an activator flipper plate. The barrier plate extends vertically from, and is positioned substantially perpendicular to, a foldable platform during the raising or lowering of a wheelchair. The barrier plate functions as a safety stop prohibiting the inadvertent rolling of a wheelchair off of the platform. The activator flipper plate is pivotally connected to the platform and to the barrier plate. The activator flipper plate functions to engage a road surface as the platform is lowered, for retraction of the barrier plate as the activator flipper plate engages the ground. The invention additionally includes a latching mechanism for coupling a foldable wheelchair platform to the frame of a wheelchair lift device. The improved latching mechanism includes a slide having a handle, and a notch having an engagement lip. The manipulation of the handle releasably couples the notch and lip to an engagement pin mounted to the frame of a wheelchair lift device.

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Alexandria, MN, United States of America

Lynn O Ringdahl