Patent ID: 7861474

Claim:
In an upright wall system including at least two prefabricated full-height wall panels joined in adjacent edge-to-edge relationship, said wall panels being supported on a floor and projecting upwardly to a point wherein upper edges thereof are disposed in close proximity to a ceiling, and a header arrangement associated with each said prefabricated wall panel for creating an engaged relationship with a ceiling track to provide lateral stability at the upper edge of the respective wall panel, the improvement comprising: said prefabricated wall panel having a horizontally elongate rigid top frame member extending lengthwise along and defining an upper edge thereof; said header arrangement including a guide structure fixed to said top frame member and projecting upwardly therefrom; said header arrangement also including an elongate header member disposed above said top frame member and extending lengthwise therealong, said header member having a downwardly-opening channel-shaped cross-section which downwardly telescopes over and is vertically slidably supported on said guide structure for upward vertical movement from a lowered storage position into a raised installed position; said header member having an engagement structure which creates a fixed but releasable engagement with the ceiling track when the header member is in the raised installed position, said header member being manually displaced from said lowered position into said raised installed position.