Patent ID: 7243473
Filing Date: 2007-07-17
Classification: E04C,E04F,F16B

Abstract:
1. A frame apparatus comprising a plurality of interlocking identically configured pieces, each piece having a first extension and a second extension extending perpendicularly from the first extension, wherein each of said first and second extensions has an internal channel with one or more ratchet teeth in said channel, the ratchet teeth in the channels of the first extensions being adapted to lockingly engage the ratchet teeth in the channels of the second extensions of the adjoining pieces, the first extension of each piece adapted to receive the second extension of another piece in a telescoping connection, wherein said ratchet teeth in the first and second extensions are configured to slidably engage to allow the second extension to slide relative to the first extension into the channel, and further configured to lockingly engage to substantially prevent reverse sliding of the second extension relative to the first extension, such that the second extension is locked in engagement with the first extension.