Patent ID: 6527421
Filing Date: 2003-03-04
Classification: F21V

Abstract:
A lampshade frame that is capable of shifting between an erect configuration and a collapsed configuration comprising:an upper hoop; a lower hoop; at least one segmented rib extending between and pivotally attached to the upper and lower hoops and having at least a first segment and a second segment, the segments being capable of shifting relative to one another and having ends adjacent to one another when shifted to an extended state to set the lampshade frame in the erect configuration for use and spaced from one another when shifted to a retracted state to set the lampshade frame in the collapsed configuration; a sleeve interconnecting the first and second segments, the sleeve allows the segments to shift relative to one another and locks the ends of the segments to maintain the segments in the extended state against unintentional movement and upon selective activation allows the adjacent ends to space from one another so that the segments move alongside one another to retract and collapse the lampshade frame.