Abstract: A ball-latch mechanism comprising a plunger supported in a housing and linearly movable from a loaded to an extended position, a trigger rotatable from a latched position, which interferes with linear movement of the plunger, to an unlatched position, which permits linear movement of the plunger from the loaded position, a bias element biasing the plunger from the loaded position, a cocking mechanism comprising a lever arm rotatable about a lever axis from a retracted position within the housing, wherein a bearing surface of the lever arm is outside of a range of motion of the plunger, and a cocked position, wherein the bearing surface of the lever arm bears against the plunger and the plunger is in the loaded position, whereby the plunger may be forced to the loaded position by the lever arm by application of torque to a torque receiving surface of the lever arm.

Abstract: A leak detection material and method of introducing the leak detection material into a fluid system such as a climate control system, an engine oil system, or a fuel system is described. The leak detection material can be a dye delivery composition including a mixture of leak detection dye and a solid carrier.

Abstract: An audio signal processing channel includes a bias network for deriving a bias voltage which is coupled to a point within the channel from the supply voltage. In order to inhibit audible transients or "pops" due to the rapid reduction of the bias voltage when the voltage supply is deenergized, a diode is coupled between the bias network and the voltage supply so as to selectively decouple a filter capacitor of the bias network from the voltage supply and associated loads when the voltage supply is deenergized. As a result, the bias voltage is gradually reduced at a controlled rate of change which is independent of the impedances of voltage supply and associated loads. Such a "pop" suppression arrangement is particularly desirable when it is not possible or practical to "mute" the output amplifier of the channel.