Patent · US Active

Fold out ramp

US8250693B1 · kind B1 · utility

24Cited by

54References

26Claims

0Family size

Assignee

Lift-U, Division of Hogan Mfg., Inc. · US

Inventors

David Johnson · Modesto, US
Donald Morris · Littleton, US

Key dates

Filing date	Jan 13, 2012
Grant date	Aug 28, 2012
Priority date	—
Expiry date	Jan 13, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60P1/433
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A ramp assembly provides a transition surface from a vehicle floor to an alighting surface. The ramp assembly includes a ramp portion that rotates between a stowed position and a deployed position. A panel is rotatably coupled to the ramp portion about a first axis. The ramp assembly further includes an actuator that provides a rotational force to the ramp portion that drives the ramp portion through a deployment motion. The deployment motion includes a first phase during which the rotational force rotates the ramp portion about the first axis. The deployment motion further includes a second phase during which the rotational force moves the first axis in a downward direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.