Hewlett-packard Development Company, L.P.

Hewlett-packard Company

Carey E Yliniemi

Robert S Wickwire

Mark C Donning

Govind Sanjeevanrao Deshmukh

Robert Ronald

In one example, a multi-part flow structure with multiple flow passages includes a first part sandwiched between a second part and a third part, the parts joined together with adhesive along bonding surfaces surrounding the flow passages where each of the bonding surfaces on one part is symmetrical to and diverges from a corresponding one of the bonding surfaces on another part.

Multi-part fluid flow structure

In one example, parts to be assembled into a fluid flow structure include: a first part having a first opening therein and a first adhesive bonding surface surrounding the first opening; a second part having a second opening therein and a second bonding surface surrounding the second opening; and the first and second bonding surfaces are each configured, when the parts are assembled for bonding and an adhesive is squished between the parts, to create a capillary force along the bonding surface urging adhesive away from the opening.

A spacer is incorporated into the standpipe of a foam-ink-containment type of inkjet print cartridge for retarding the growth of a diffused-air bubble in the standpipe, thereby extending the shelf life of the cartridge by ensuring the bubble will not become so large during storage of the cartridge that the bubble occludes flow of ink to the printhead.

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Monmouth, OR, United States of America

Carey E Yliniemi