Abstract: An operating table includes a base, a support post standing on the base, and a bed. The bed has a head section, a back section, a hip section and a foot section. The back section and the foot section respectively connect with ends of the hip section through pivot joints and are pivotable relative to the hip section upward and downward. The foot section has a rear section and a front section connecting with each other, and is pivotable either upward to an angle of less than 135 degree with respect to the hip section. The rear section is detachable separately, and an angle of the front section with respect to the hip section is adjustable via a pivot joint. The foot section can be shortened to support downward weight of the patient reliably. Moreover, a surgeon can adjust angles between the patient's legs and hip easily during the operation.

Abstract: A 2×VDD-tolerant input/output (I/O) buffer circuit with process, voltage, and temperature (PVT) compensation suitable for CMOS technology is disclosed. A 2×VDD-tolerant I/O buffer with a PVT compensation circuit is implemented with novel 2×VDD-tolerant logic gates. Output slew rate variations can be kept within smaller ranges to match maximum and minimum timing specifications. A 2×VDD tolerant logic circuit for implementing the I/O buffer is also disclosed.

Abstract: A waste toner cartridge includes a housing and a plug. The housing has a recessed bottom wall and a periphery wall integrally connected with the bottom wall to define an accommodation recess therebetween and provided with a flange having an arc section and two restricting portions respectively extending from two ends of the arc section. The plug has a body portion received in the accommodation recess, and an anchor portion extending axially from the body portion. The body portion of the plug has an outer diameter larger than a distance between the restricting sections of the flange, and the anchor portion of the plug has a radius larger than a radius of curvature of the arc section of the flange such that the plug can be firmly retained in the accommodation recess of the housing when the plug is not in use.

Abstract: For assembling/disassembling a printed circuit board, a specially shaped spring is to be integrated inside the device. The assembly/disassembly of the printed circuit board in the device is simplified by virtue of the fact that the printed circuit board has to be pressed only against the spring and a fixed supporting part of the device to which the spring is attached. In order to be able to press the printed circuit board, among other things, perpendicularly against the fixed supporting part, the specially designed leg spring is fastened underneath the fixed supporting part. The legs of this spring protrude outward on both sides beyond the top-side of the supporting part. During assembly, the printed circuit board is guided between the top-side and the protruding spring legs. The printed circuit board is fixed by additional supporting parts of the device.