Patent ID: 7077595
Filing Date: 2006-07-18
Classification: B42B,B42F,Y10T

Abstract:
1. A unitary injection molded polymeric spine binder comprising: a spine consisting of a longitudinally extending connecting strip, a series of spaced apart hinge members on said spine, each said member defining a hinge consisting of longitudinally extending portions arranged transverse to said spine joined together centrally of their width along one common longitudinal edge of said spine, each said member having: a ring arranged substantially transverse to said spine to define an elongated dorsal hinge comprising a first hinge brace and a second hinge brace connected by said spine, so that the hinge is open when the hinge braces are separated, and the hinge is closed when the hinge braces are brought together; and a plurality of complementary male and female ring elements, wherein each ring element is a semicircle and comprises a proximal end attached to a hinge brace and a distal end comprising a male fastener for a male ring element and a female fastener that is complementary to the male fastener for a female ring element, each ring element being attached to one hinge brace and a complementary ring element being attached to the opposing hinge brace, so that the distal ends of the complementary ring elements are separated when the hinge is open, and are engaged to form a loop in cooperation with the hinge when the hinge is closed and said hinge braces are arranged face to face extending beyond a plane of said elements,