Patent ID: 7736081
Filing Date: 2010-06-15
Classification: B42F,B42P

Abstract:
1. A binder mechanism, comprising: a base; a ring comprising a free end and a secured end, with the secured end being movably secured to the base; and a base connector for fastening the free end of the ring in a closed position; and wherein the secured end of the ring is pivotally connected to the base via a first pivotal connection permitting the ring to pivot between an upright open position and an upright closed position relative to the base connector, with the upright closed position permitting sheets to be held by the ring and with the upright open position permitting sheets to be added to the ring; wherein the secured end of the ring is pivotally connected to the base via a second pivotal connection permitting the ring to pivot from a collapsed position into an upright position; and wherein the secured end of the ring cooperates with the base such that the base biases the free end of the ring into an open position in which the free end of the ring is spaced from and proximate the base connector.