US Patent 7345890 Rotating latching mechanism for ATCA mezzanine card modules

Rotating latching mechanism for securing Advanced Telecom Computing Architecture (ATCA) mezzanine card (AdvancedMC) modules within mezzanine slots on an ATCA carrier board. The rotating latching mechanism includes a rotating latching member having a handle coupled to a shaft to which a latching paddle and position detector actuator paddle are also coupled. The rotating latching member is pivotally coupled relative to a faceplate of a module proximate to the handle, and the shaft at the opposite end is supported by a rear bearing support member coupled to the modules circuit card. As the handle is rotated, the latching paddle is rotated to engage a cutout formed in a strut coupled to the ATCA carrier board, thus latching the module in place. The position detector actuator paddle is also rotated to cause a position detector to be actuated.