Abstract: In one embodiment, a fluid flow channel includes a first part and a second part connected to and positioned downstream from the first part such that fluid can flow from the first part to the second part. The first part has opposing sidewalls, a floor extending between the sidewalls, and a ceiling extending between the sidewalls. The ceiling of the first part slopes upward in an upstream direction or the sidewalls taper in toward one another in a downstream direction, or both. The second part has opposing sidewalls and a ceiling extending between the sidewalls. The ceiling of the second part slopes upward in an upstream direction.

Abstract: One exemplary fluid ejection device includes a substrate having one or more layers positioned thereon. The fluid ejection device also includes a fluid-feed path extending through a space which is defined, at least in part, by the one or more layers. The fluid ejection device including methods and structures for managing air and amongst other things gas bubble formation.

Abstract: A device for managing bubbles in a fluid and methods of same are described. O ne exemplary m ethod sequentially energizes m ultiple electrical components primarily to move a bubble contained in a fluid and not primarily to vaporize the fluid. Responsive to said energizing, the method moves a thermal gradient along the fluid to move the bubble in a desired direction.

Abstract: Methods and systems for managing bubbles in a micro electro mechanical systems device are described. One exemplary system includes a fluid-feed channel configured to supply fluid to a plurality of ejection chambers, individual ejection chambers comprising a resistor configured to eject fluid from the individual ejection chamber. The system further includes a processor configured to cause an individual resistor to be energized at a first intensity sufficient to eject fluid from a respective ejection chamber, the processor further configured to cause the resistor to be energized at a second lower intensity which heats the resistor but does not cause fluid to be ejected from the respective ejection chamber, and wherein the processor can energize, at the second lower intensity level, individual resistors in a pattern designed to detach a bubble from a surface defining a portion of the fluid-feed channel.

Abstract: A trailer for towing behind a bicycle and having a trailer body with a floor, side walls, front and rear walls, and an open top, a removable top cover for covering the open top, a pair of seats located in the body, side by side with one another, a rigid chassis supporting the body, to which the tow bar and wheels are mounted, a tow bar extending forwardly of the front wall moveably attached to the chassis for connection to a bicycle, a pair of road wheels releasably attached to the chassis, and attachments for securing the body to an automobile roof to adapt the body for use as an automobile luggage carrier.