Patent ID: 7757450

Claim:
A flexible control joint, comprising: a first base portion; a first screed wall having a first proximal end protruding from said first base portion and having a first distal end located a first distance away from said first base portion, said first screed wall configured to form a first end wall for a first amount of plaster having a first thickness that is substantially equal to said first distance; a second base portion substantially co-planar with said first base portion; a second screed wall having a second proximal end protruding from said second base portion and having a second distal end located a second distance away from said second base portion and wherein a predetermined difference exists between a magnitude of said second distance and another magnitude of said first distance, said second screed wall configured to form a second end wall for a second amount of plaster having a second thickness that is substantially equal to said second distance; and a flexible attachment assembly attached between said first screed wall and said second screed wall such that said first and second screed walls are in spaced relationship to each other and wherein said flexible attachment assembly facilitates flexible movement between said first and second screed walls; and a first plaster-retainer protruding from said first screed wall; and a second plaster-retainer protruding from said second screed wall; said first plaster-retainer protrudes from said first screed wall at an acute angle away from said first screed wall and wherein said second plaster retainer protrudes from said second screed wall at an acute angle away from said second screed wall.