Patent ID: 6904646

Claim:
A multi-part closure device comprising: a substantially planar blade having a blade latch end and a blade connector end, the blade connector end forming a first part of a bayonet fastener; and a trough having a trough latch end to selectively latch and unlatch to the blade latch end, a trough connector end, and a necked portion proximal to the trough connector end, the trough connector end forming a second part of a bayonet fastener; wherein the blade and trough are discrete components until the connector ends are fastened one to the other to create a rigid joint between the blade and the trough in the form of a bayonet fastener; and wherein the necked portion forms a hinge enabling the trough to hinge at the necked portion substantially about one axis while the blade and rigid joint remain stationary with respect to the trough.