Patent ID: 7971287
Filing Date: 2011-07-05
Classification: E04H

Abstract:
1. An apparatus for lifting a cover from an opening of a housing having an exterior and an interior, wherein the housing further has a housing proximate end defining a proximate portion of the opening and a housing distal end defining a distal portion of the opening, wherein the cover has a proximate portion of the cover pivotally connected to a distal portion of the cover, wherein the proximate cover portion is adapted to cover the proximate portion of the opening, and wherein the distal cover portion is adapted to cover the distal portion of the opening, the apparatus comprising: a first frame member having a first frame member proximate end and a first frame member distal end, wherein the first frame member distal end is pivotally attached at a frame pivot location to the exterior of the housing, and a motor coupled to the first frame member and adapted to rotate the first frame member about the frame pivot location from a frame first position to a frame second position, and from the frame second position to a frame third position,