US Patent 8944476 Latch assemblies and transportation containers using the same

A latch assembly includes a closing panel having an end with a closing panel tab extending therefrom. A clasp lever is pivotally attached to the end of closing panel and forms a space into which the closing panel tab extends. Inner peripheral sidewalls of the clasp lever forming the space allow the clasp lever to rotate around outer peripheral sidewalls of the closing panel tab when the clasp lever pivots around the end of the closing panel. An incessant force component is disposed within the space between the closing panel tab and a rear inner sidewall of the clasp lever and biases the clasp lever to a neutral position with respect to the closing panel. A force applied to an outer surface of the clasp lever against the bias causes the clasp lever to pivot around the end of the closing panel from the neutral position.