Abstract: A folding knife having a back bar configured to engage the tang portion of a blade. A release member mechanism is utilized to engage the back bar to apply force thereto to at least partially disengage the back bar from the tang portion of the blade for purposes of repositioning the blade with respect to the handle.

Abstract: A system and method for removing unwanted heat generated by a piezoelectric element of an ultrasound transducer. Some implementations have high thermal conductivity (HTC) material placed adjacent to the piezoelectric element. The HTC material can be thermally coupled to one or more heat sinks. Use of HTC material in conjunction with these piezoelectric element surfaces is managed to avoid degradation of propagating acoustic energy. Use of the HTC material in conjunction with heat sinks allows for creation of thermal paths away from the piezoelectric element. Active cooling of the heat sinks with water or air can further draw heat from the piezoelectric element. Further implementations form a composite matrix of thermally conductive material or interleave thermally conductive layers with piezoelectric material.

Abstract: A wire stripping knife having a back bar which cooperates with the handle to strip wire. In one form the back bar is a lock back bar to lock the knife in an open orientation, and in yet another form the back bar is biased to a closed orientation when the blade is in an extended orientation.

Abstract: A firearm noise suppressor having an internal base frame member with a plurality of inserts mounted thereto. In one form the suppressor is provided with a slip chamber allowing gas to be forwarded to a longitudinally forward chamber for pre-compression of gas therein.

Abstract: A multi-tool attachment having a configuration that is well-suited for incising material and performing various operations where two incising members are positioned on a main portion of the tool and the cutting-edge surfaces are in close engagement with one another at an interface point where the two blades meet in forceful engagement with one another.