A damper mechanism or a damper disk assembly realizing a low rigidity using a pair of elastic members is provided to achieve a further low rigidity in a region with small torques. A first radius extending from a point within the opening to a number of first portions of the cam surface and second radii extending from the point to second portions of the cam surface define the cam surface. During sealing, the raised sealing bead compresses, thereby stretching the adhesive layer on the lower portion of the lid out of the way and forming a direct welded seal with the heat-resistant layer of the lid. Additionally, the coated multifilament yarn can be combined with a yarn such as spun acrylic, polyester, nylon yarn, texturized filament yarns; or other uncoated filament yarns. Behavior injection uses non-volatile memory to preserve persistence of filter context information across possible system errors, for reporting of the results of behavior injection, and to preserve information across recovery from system errors. The signal BADCLK generates the signal UP having a pulse width that compensates for the last signal DOWN and keeps the biasing signal to the voltage controlled oscillator relatively constant when the clock signal fails.