Lexmark International, Inc.

Other

Kin Ming Kwan

Jeanne Marie Saldanha Singh

Jeffery James Buchanan

Paul Timothy Spivey

Ganesh Vinayak Phatak

Jon Brock Whitney

Frank Edward Anderson

Michael L Rhodes

Sean Terrance Weaver

Carl Edmond Sullivan

James M Mrvos

David Emerson Greer

Curtis Ray Droege

James Paul Drummond

Craig Michael Bertelsen

Kent Lee Ubellacker

Long Xuan Nguyen

David T Shadwick

Melissa Marie Waldeck

Gregory Alan Long

Justin Boland

Mary Claire Smoot

Jeanne M Saldanha Singh

Audrey Dale Rodgers

James Andrew Kerr

Ganesh Vivayak Phatak

Brian M Ronald

Jordan H Eber

Jeanne M Saldanha

Keith Hieber

Nicolaus Hudson

Julie A Gordon Whitney

A medical scope device such as an endoscope is produced using a cast aluminum process including a molten casting aluminum alloy including a maximum of 0.2-0.3% Si and at least 5% Zn. The process includes providing an investment casting mold, casting the aluminum alloy in the mold to create a component and removing the mold from the component, post-machining the component to meet a desired specification, and after post-machining the component, performing surface finishing, such as centrifugal barrel finishing (CBF) sufficient to remove impurities on casting surfaces by 2-3 mils, then coating the component with a micro-crystalline aluminum anodic coating of at least 0.5 mil thickness. A medical scope and product-by-process is also provided employing such techniques.

Medical device and method of manufacture yielding medical devices with consistent surface features

Electrostatic power generator cell architectures having high generator output and a method of manufacture. In one embodiment, parasitic capacitances are reduced by reducing overlap between walls of the chamber and electrodes of the generator cell. In another embodiment, generator component materials are selected to reduce triboelectric effects to improve the coupling of kinetic energy to electrical output, thereby increasing generator output. In a further embodiment, the high permittivity material is selected to increase the modulation of the variable capacitors in the power generator to increase generator output. In still another embodiment, the physical dimensions of the generator cell components are reduced to increase power density. In an additional embodiment, a physical dimension of the generator chamber is based on the dominant motion the generator will be exposed to in a particular application.

Electrostatic power generator cell and method of manufacture

Ink delivery systems achieve balanced ink flow by positioning two or more ink chambers around ink ejection mechanisms in a printhead. A plurality of pie-shaped ink chambers may be arranged in a circle above an ink ejection mechanism, which provides short ink paths from each ink chamber, and ink paths having approximately the same length. This fosters even ink flow rates and equal pressure drop/loss of ink supplies, thereby improving ink feeds to a printhead and providing improved jetting efficiency and printhead performance.

Printhead systems having multiple ink chambers with balanced and short ink paths

A method for manufacturing an inkjet print cartridge and an inkjet cartridge produced thereby are disclosed. An inkjet print cartridge in accordance with one aspect includes a component of the inkjet print cartridge and an applied adhesive on at least a portion of the component, wherein the applied adhesive is formed from an adhesive having a rheology viscosity ratio &#x3b7;/&#x3b7;of from 1.0 to less than 2.1. The method in accordance with one aspect includes applying an adhesive onto at least a portion of a component of an inkjet print cartridge at an application temperature, T, and heating the adhesive from an initial temperature, T, to a cure temperature for the adhesive, T. The adhesive has a rheology cure profile characterized by at least one of the following parameters: a) a rheology viscosity ratio &#x3b7;/&#x3b7;of from 1.0 to less than 2.1, b) a temperature of the adhesive is approximately equal to a minimum viscosity temperature for the adhesive, T, within less than about 10 minutes from the start of the cure cycle, and c) viscosity of the adhesive increases within less than about 5 minutes from the start of the cure cycle.

Inkjet print cartridge having an adhesive with improved dimensional control

A micro-fluid ejection device structure, a multi-fluid cartridge containing the ejection device structure, and methods for making the ejection device structure and cartridge. The micro-fluid ejection device structure includes a fluid supply body containing at least three fluid supply slots therein. An ejection head substrate having fluid feed slots therein is attached to the fluid supply body. Each of the fluid supply slots in the body is in flow communication with at least one of the fluid feed slots in the substrate. A plurality of adhesive bond lines adhesively attach the ejection head substrate and the fluid supply body to one another. Each of the adhesive bond lines have a width of less than about 600 microns and are located between adjacent ones of the fluid supply slots in the body.

Die attach methods and apparatus for micro-fluid ejection device

A multi-fluid body and an ejection head substrate connected in fluid flow communication with the multi-fluid body for ejecting multiple fluids therefrom. The multi-fluid body includes at least two segregated fluid chambers. Independent fluid supply paths lead from each of the fluid chambers providing fluid to multiple fluid flow paths in the ejection head substrate. The ejection head substrate is attached adjacent an ejection head area of the body. The fluid flow paths in the ejection head substrate have a flow path density of greater than about one flow paths per millimeter.

Multi-fluid ejection device

In a system for laser welding upper and lower work pieces along a weld interface, the upper work piece being transparent to laser light and having a non-uniformly thick dimension, compensation plates and compliant members are taught that mate or otherwise contact the upper work piece such that a combined thickness of the upper work piece and the compensation plate or compliant member is substantially uniform in a region at least above the weld interface. In this manner, substantially consistent amounts of laser light reach the weld interface. The upper work piece may include positive projections, negative voids, contoured profiles, surface imperfections or other that cause the non-uniformity. In one embodiment, the compensation plate is fashioned together with a compliant member. In another embodiment, the upper and lower work pieces comprise inkjet printhead lids and bodies, respectively.

Laser welded inkjet printheads having non-uniformly thick printhead lids

An apparatus for a laser transmission welding process for attaching a synthetic filter material to a filter tower frame in an ink jet printer cartridge. The apparatus includes a laser beam source and a filter clamping fixture containing a base, slide rods attached on first ends thereof to the base, an optics support plate attached to second ends of the slide rods, a movable platform for holding an ink cartridge slidably disposed on the slide rods between the base and the optics support plate, a platform moving device for translating the platform to and from a laser welding position, a laser beam transparent plate suspended by support legs from the optics support plate to a position between the movable platform and the optics support plate. The apparatus greatly improves synthetic filter attachment to a filter tower frame in an ink cartridge.

Method and apparatus for attaching an ink jet filter to an ink cartridge

A printing cartridge including a body, the body having a base and a tower defining a passageway. The tower is made from a first polymer material, and has a proximal end and a distal end. The proximal end is attached to the base. The distal end includes a surface. A frame, made of a second polymer material different from the first polymer material, is attached to the surface of the tower. A filter is attached to the frame and positioned to extend over the passageway.

Printing cartridge having a filter tower assembly and process for forming the same

Compensation plates and compliant members for laser welding a non-uniformly thick work piece including inkjet printheads with non-uniformly thick printhead lids

Growing community of inventors

Lexington, KY, United States of America

Kin Ming Kwan