Patent · US Active

Fold out ramp

US8181300B1 · kind B1 · utility

19Cited by

51References

14Claims

0Family size

Assignee

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

Inventors

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

Key dates

Filing date	Feb 28, 2011
Grant date	May 22, 2012
Priority date	—
Expiry date	Feb 28, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S414/134
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A ramp assembly includes a ramp portion coupled for rotational movement between a stowed position and a deployed position. A first panel is rotatably coupled about a first axis to the ramp portion. A second panel is movable between a lowered position and a raised position. A curbside end of the second panel rotatably associated with a roadside end of the first panel. An actuator drives the ramp assembly through a deployment motion having a first phase and a second phase. During the first phase, the actuator rotates the ramp portion about the first axis. During the second phase, the actuator moves the first axis from a raised position to a lowered position.

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