and an outlet valve for closing the outlet channel. The movable wall of the pump may take a number of forms. For instance, one movable wall embodiment may comprise a rigid topside that moves in the z-direction in response to a force acted upon the rigid topside that in turn causes non-...
However, these devices do not take account of the conditions faced by hunters who have fallen from a treestand, namely, the presence of obstructions upon which a hunter may become entangled or even impaled. What is needed is a device that will quickly arrest the fall of a person that can...
the shield can take its proximal position very close to the barrel of the syringe and be less obtrusive during the normal operation of the syringe. With the curvilinear flanges on the shield the direction of the groove does not necessarily have to be angled with respect to the needle and ca...
the needle is inserted through the normally open slit of the slit valve diaphragm in accordance of the present invention thereby avoiding any tendency for the diaphragm defining the slit to take a set, which set might thereby make closure of the slit thereafter difficult if not impossible after ...
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