Patent ID: 8257256

Claim:
A retractor device for holding open two sides of a flexible material that bounds an aperture, so as to provide a viewing window between the two sides of the flexible material, the retractor device comprising: a U-shaped body, constructed as a single unitary piece of a formable plastic material, the U-shaped body including a live hinge and two arms, a proximal end of each arm joined by the hinge; a series of anti-torque arches disposed along an outer wall of the two arms and the live hinge, the anti-torque arches serving to enhance lateral stability of the two arms and to control a spring force at the hinge; and a retracting means provided at a distal end of each arm, the retracting means including a tongue blade for insertion under the flexible material and a deflector connected to and extending orthogonally from the tongue blade for restraining the flexible material to an open position.