Fluid flow structure
AssigneeHewlett-Packard Devleopment Company, L.P.
InventorsRhonda Lynn Wilson, Daniel D. Dowell
Life of this patent
Estimating the term…
Abstract
In one example, parts to be assembled into a fluid flow structure include: a first part having flat sealing surfaces each surrounding one of multiple first conduit openings; a second part having sealing ridges each surrounding one of multiple second conduit openings; and a single gasket having multiple holes each surrounded on both sides by a flat sealing surface. Each hole in the gasket is positioned to align with one of the first and second conduit openings so that, when the parts are assembled together, each gasket sealing surface contacts a corresponding one of the flat sealing surfaces on the first part or the sealing ridges on the second part and fluid may flow through the holes in the gasket from the conduit openings on one of the parts to the conduit openings on the other part.
Claims12
Parts to be assembled into a fluid flow structure, comprising:
- a first part having flat sealing surfaces each surrounding one of multiple first conduit openings;
- a second part having sealing ridges each surrounding one of multiple second conduit openings;
- and
- a single gasket having multiple holes therethrough from a first side to a second side and flat sealing surfaces surrounding each hole on both sides, each hole positioned to align with a corresponding one of the first and second conduit openings so that, when the parts are assembled together with the gasket sandwiched between the parts,
- each sealing surface on the gasket contacts a corresponding one of the flat sealing surfaces on the first part or the sealing ridges on the second part, and
- fluid may flow through the holes in the gasket from the conduit openings on one of the parts to the conduit openings on the other part.
A print bar structure, comprising:
- a feature for mounting a printhead;
- and
- an assembly for carrying liquid to a printhead when the printhead is mounted to the printhead mounting feature, the assembly including:
- a first part having an outlet from a first conduit;
- a second part attached to the first part, the second part having an inlet to a second conduit aligned with the outlet from the first conduit;
- and
- a pliable gasket having flat surfaces sealing the two parts around the inlet and the outlet by a ridge on one of the parts and a flat on the other part.
A print bar structure, comprising:
- an exterior feature having a printhead attach surface for attaching printheads to the print bar structure;
- and
- an interior feature holding a liquid distribution assembly for carrying liquid to the printheads when there are printheads are attached to the print bar structure, the liquid distribution assembly including:
- a first part having first conduits, an outlet from each of the first conduits, and first surfaces each surrounding one of the outlets;
- a second part attached to the first part, the second part having second conduits, an inlet to each of the second conduits aligned with the outlet from a corresponding first conduit, and second surfaces each surrounding one of the second conduits;
- and
- a pliable gasket between the first part and the second part, the gasket having holes therethrough each aligned with the outlet from a corresponding first conduit and the inlet to a corresponding second conduit, flat first sealing surfaces each contacting a corresponding first surface on the first part, and flat second sealing surfaces each contacting a corresponding second surface on the second part;
- wherein
- each one of the first surfaces or the second surfaces is flat and each of the other of the first surfaces or the second surfaces includes a ridge protruding into the gasket sealing surface.
Dependencies are inferred from the claim text.