Patent ID: 8985959
Filing Date: 2015-03-24
Classification: F04D

Abstract:
1. A ceiling fan blade connecting device, comprising: a fan blade with a mounting end having a single enlarged non-cylindrical fastening hole and an opposite end; a blade bracket having one end attached to a ceiling fan motor and opposite blade connecting end; a single non-cylindrical pedestal fixably attached in a vertical orientation to the blade connecting end of the bracket; and a single non-cylindrical rotatable knob rotatably attached to the single pedestal, wherein at rest position perimeter edges of the knob are aligned with perimeter edges of the pedestal, the knob having a base with downwardly protruding middle ridge portion and angled side portions which angle upward up to approximately 10 degrees to each side of the middle ridge portion, wherein the base enhances a gripping action with the surface of the blade when the knob is rotated, and wherein the blade is laid over the bracket so that the fastening hole slips over the knob and the pedestal until a portion of the blade rests against the bracket, and twisting the knob to a non-aligned position over the pedestal locks the blade to the bracket.