Abstract: Pressure plunger apparatus for mitigating a clogging in a channel and associated methods are disclosed. In one embodiment, a plunger apparatus can include an outer tube, an actuator positioned inside the outer tube, a seal positioned between the outer tube and the actuator, and a fitting attached to the tube component. The seal is operably attached to the outer tube and fixedly attached to the actuator. The actuator is configured to be moved reciprocally so as to generate a pressure difference of a fluid positioned inside the outer tube. The pressure difference can drive at least a portion of the fluid positioned inside the outer tube to be ejected from the outer tube to the channel so as to mitigate the clogging in the channel.

Abstract: Function representation and selection in a multi-function system that supports user selection of system function by means of a menu-driven graphical user interface includes displaying a rotatable function menu. The rotatable function menu includes a plurality of circumferentially-arrayed facets, each facet representing a respective function of a plurality of functions. The rotatable function menu may be rotated on an axis to place any desired facet at a selection location at which the function represented by the facet may be selected. Selection and configuration of functions and features related to a selected function are provided by display and navigation through one or more submenus.

Abstract: Function representation and selection in a multi-function system that supports user selection of system function by means of a menu-driven graphical user interface includes displaying a rotatable function menu. The rotatable function menu includes a plurality of circumferentially-arrayed facets, each facet representing a respective function of a plurality of functions. The rotatable function menu may be rotated on an axis to place any desired facet at a selection location at which the function represented by the facet may be selected. Selection and configuration of functions and features related to a selected function are provided by display and navigation through one or more submenus.