Abstract: A fastener dispensing apparatus includes a body that defines a punch path and at least partially surrounds a punch that includes forward and rearward portions. The punch reciprocates between retracted and advanced positions in which the tip of the forward portion extends from an end of the punch path to drive a fastener towards the workpiece. A fastener feed path extends transverse to the punch path and is defined by a surface of the body, the fastener feed path receives an elongate carrier of fasteners. A fastener feeding device sequentially feeds fasteners along the fastener feed path and into alignment with the end of the punch path. An actuator is drivable by the reciprocal movement of the rearward portion of the punch. An engagement member engages the carrier and is moveable relative to the body.

Abstract: A fastener dispensing apparatus includes a body that defines a punch path and at least partially surrounds a punch that includes forward and rearward portions. The punch reciprocates between retracted and advanced positions in which the tip of the forward portion extends from an end of the punch path to drive a fastener towards the workpiece. A fastener feed path extends transverse to the punch path and is defined by a surface of the body, the fastener feed path receives an elongate carrier of fasteners. A fastener feeding device sequentially feeds fasteners along the fastener feed path and into alignment with the end of the punch path. An actuator is drivable by the reciprocal movement of the rearward portion of the punch. An engagement member engages the carrier and is moveable relative to the body.

Abstract: A differential pressure switch has a main switch body divided into three chambers by means of two diaphragms, thereby sealing the center chamber that contains a snap-action switch. The two diaphragms are mechanically connected by a strut that can move only along a single line of motion, so that movement of one diaphragm is transmitted to the other. Movement of the strut is coupled to an actuator of the snap action to produce the desired switching action.

Abstract: A reusable emergency gas shutt-off valve for terminating the supply of fuel to a dwelling is adapted for fluid pressure actuation at a location outside of the dwelling, manual actuation on the valve itself, and thermal actuation from heat in the vicinity of the valve or via a signal received from a temperature-sensing device at a location remote from the valve. The valve is resettable only by utilizing a specially-constructed reloading tool.